BA002CEN

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BA 002C/07/en/10.97Software version 2.0No. 50043259

bitop CPM 4402-Wire Transmitter forpH Measurement

Operating Instructions

Nothing beats know-how

Endress Hauser

Quality made byEndress+Hauser

ISO 9001

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Table of contents

1. General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 Measuring system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.3 Unit order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2. Unpacking and scope of supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.2 Scope of supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43.2 Types of installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43.2.1 Post mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43.2.2 Wall mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43.3 Accessories for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.3.1 Outdoor installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.3.2 Junction box VBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3.3 Junction box VBM / VBM-Ex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4. Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64.1 Basics for connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64.2 Transmitter connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.3 Connection diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5. Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.2 Power failure handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145.3 Minimum settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166.1 General notes regarding operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

6.2 Matrix user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176.3 Operating matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206.5 pH measurement in hazardous area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216.6 Description of operating functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

7. Error handling and maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257.1 Error handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257.2 Error list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257.3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

8. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278.1 Measuring technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278.2 Physical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

9. Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299.1 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299.2 Conformity certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

10. Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

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1. General

1.1 Application

Bitop CPM 440 / 440 Z is employed wherever

the benefits of two-wire measuring technologycan be used, i.e. supplying power to themeasuring transmitter and analoguemeasured value transmission via a two-wirecable.

Typical areas of application are:

• Chemistry• Petrochemistry• Pharmaceuticals• Water treatment• Waste water treatment

1.2 Measuring system

Bitop CPM 440 / 440 Z is a microprocessor-

controlled 2-wire loop-powered measuringtransmitter for pH value measurement.

The unit is available in non Ex (CPM 440)and in Ex-area (CPM 440 Z) versions(measuring current circuits with type ofprotection EEx ia IIC, output current circuitwith type of protection EEx ib IIC).

It is supplied with power by a commerciallyavailable measuring transmitter power supplyunit installed in a control room.Measuring transmitter power supply unit andBitop CPM 440 / 440 Z are connected by ascreened two-wire cable. This connection

(4 to 20 mA) is simultaneously used totransmit the measured values.

Depending on the version, the unit is intendedfor connection to either the pH / Redox compactelectrode system Sensopac CPA 320 or apH measuring chain installed in zone 2, 1 or 0hazardous areas.

Ex versions (CPM 440 Z) for use in zone 2 or 1hazardous areas carry a nameplate identifyingthem specifically for this type of application(see chapter 2).

Bitop CPM 440 / 440 Z

VersionsA non-ExZ Ex (EEx m ib / ia IIC T6)

Electrode connection

0 Combined pH electrode, Pt 1001 Sensopac electrode system

Language version of removable operating cardC DanishD GermanE EnglishF FrenshH DutchI Italian

Number of matrix fields on removable operating card0 9 Fields

CPM 440 – ⇐ complete oder code

1.3 Unit order code

1. General bitop CPM 440 / 440 Z

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2. Unpacking and scopeof supply

2.1 Unpacking

• Inspect for any damaged packaging!The post office or freight carrier must beinformed of any damage.Damaged packaging material must beretained until the matter has been settled.

• Verify that the contents are undamaged!Inform the post office or freight carrier aswell as the supplier of any damage.

• Check that the delivery is complete andagrees with the shipping documentsand your order:

– Quantity delivered– Unit type and version according to

nameplates (see figure 2.1 or 2.2)– Accessories (see chapter 9.1)– Installation and operating instructions– Instrument identification card(s)

If you have any questions, consult yoursupplier or the Endress+Hauser sales agencyin your area (see back cover of theseinstallation and operating instructions foraddresses).

2.2 Scope of supply

The shipment comprises:

• 2-wire measuring transmitterBitop CPM 440 (non-Ex version)

or

• 2-wire measuring transmitterBitop CPM 440 Z (Ex version)

and

• Self-adhesive labelidentifying measured variable

(part no. 50040392)• Standard mounting kit, comprising:– 4 fastening brackets

(part no. 50012428)– 4 hexagon head cap screws

(part no. 50013050)– 1 hexagon socket wrench

(part no. 50013046)• Accessories (see chapter 9.1)

CPM440ZD.TIF

Fig. 2.1: Nameplate

Bitop CPM 440(non-Ex version)

CPM440ZO.TIF

ZPM440a.TIF

Fig. 2.2: Nameplates

Bitop CPM 440 Z(Ex version)

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3. Installation

3.1 Dimensions 3.2 Types of installation

3.2.1 Post mounting

Fit the post mounting kit on the rear of the unit(see figure 3.2).

The unit can be installed on vertical orhorizontal tubing (max. pipe diameter 65 mm).

See chapter 9.1 for accessories available forBitop CPM 440 / 440 Z.

3.2.2 Wall mounting

Fit the mounting brackets on the rear of theunit (see figures 3.3 and 3.4).For housing and mounting dimensions

see figures 3.1 and 3.4.

Fig. 3.3: Rear (top) and(left) underneath (bottom) of

field housing with mountingdimensions and wallmounting brackets installed

Notes:

Bore Ø 6.5 mm

2 Pg 13.5 cable glands(up to 5 are possible)

Fig. 3.4: Rear of unit with fastening

(right) brackets for wall mountinginstalled

Note:Mounting brackets and screws forwall mounting are included in thescope of supply.

Fig. 3.1: Dimensions of(left) Bitop CPM 440

Fig. 3.2: Rear of unit with post(right) mount ing k it installed

2 0 4

Depth of field housing: 206 mm

155

P M 4 4 0 P 2 E . G

E M

G 1 4 1 - 0 4 . G

E M

180

160

100

2 2 8

2 0 8

1 4 8

2 1 0

6 6

136

P M 4 4 0 B 0 3 . G

E M

G 1 4 1 N 0 8 . G

E M

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3.3 Accessories for installation

3.3.1 Outdoor installationOutdoor installation additionally requiresthe weather protection cover VH3 (seechapter 9.1), which is suitable for wall orpost mounting.

3.3.2 Junction box VBE

Junction box VBE must be installed to connectindividual cables for pH electrodes andPt 100 temperature sensors to a combinationmeasuring cable leading to the instrument.

3.3.3 Junction boxVBM / VBM-Ex

Junction box VBM / VBM-Ex is requiredfor extending the CPK 2 cable with thePMK cable.

Fig. 3.6: Junction box VBEfor optional grounding

3 Pg 7 cable glands and

1 Pg 13.5 cable gland

Fig. 3.7: Junction box VBMfor optional grounding

2 Pg 13.5 cable glands

Fig. 3.5: Weather protection cover

VH3 for outdoor installationof Bitop CPM 440

310 200

2 4 5

VH3-MASS.TIF

1 1 3

1 2 5

52

80

5 4

Mounting holeØ 4.5 mm

VBM-DOSE.TIF

1 1 3

1 2 5

52

80

5 4

Mounting holeØ 4.5 mm

VBE-DOSE.TIF

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4. Electrical connection

4.1 Connection principles

Attention:

• The instrument must be groundedbefore start-up!

• If malfunctions cannot beremedied, the instrument must beremoved from service andsecured to prevent accidentalstart-up.

• Repair work can only be carriedout directly by the manufacturer orby Endress+Hauser service

organization.

Warning:

• Notes and warnings of theseoperation instructions must bestrictly adhered to!Maintenance work can only becarried out by qualified personnelif the instrument remainsconnected to the power supply!

• This measuring instrument is

protected against interferenceslike pulse-shaped transients onsupply lines, interference impulsesand high frequency fields as wellas electrostatic discharges accord-ing to Namur recommendations,IEC 801 and DIN VDE 0843.However, this is only valid for aproperly grounded instrument witha screened measured value outputline.

Manufacturer’s certificate

The grounding of the screen mustbe kept short. No soldered exten-sions of the screen!This is also valid for connection ofjunction box VS (see chapter 3.3.2).

For installation of field housing(CLM 151) the post must begrounded increase the immunity tointerfering additionally.

Note:

• This instrument has been builtand tested in accordance withEN 61010-1 and left themanufacturer’s works in perfectcondition concerning safetyregulations.

• Malfunctions of the instrument canbe remedied by means of the error

list in chapter 7.3 without requiringintervention in the instrument itself.

Alterations to the instrument arenot allowed and make any guaran-tee claim invalid.

After installing and connecting theinstrument and sensors the wholemeasuring system has to be chek-ked for function.

This is to certify that the measuring instruments of the

Bitop CPM 440 / 440 Z

has been radio interference-suppressed in accordance with the regulations as decreed inthe Official Journal BMPT 243 / 1991 with supplement 46 / 1992 and EN 55 011:91= DIN VDE 0875, part 11, 07.92 and EN 50 081-1.

The German "Bundespost" was advised that this instrument has been brought into circulationand was granted the right to inspect the series for conformance with the regulations.

Endress+HauserConducta

4. Electrical connection bitop CPM 440 / 440 Z

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4.2 Transmitter connections

Loosen the hexagon socket-head screws andflip down the front cover (see figure 4.1).

Disconnect the plug and remove the frontcover.Pull out the plug-in measuring transmitterinsert (see figure 4.2).

The connecting space and terminals are nowconveniently accessible (see figure 4.3).

Fig. 4.3: Wiring spacewith good accessibility

Fig. 4.1: Front cover removal

Fig. 4.2: Removal of plug-inmeasuring transmitter

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4.3 Connection diagrams

Warning:Measuring cables that are unusedor not connected must be insulated!

Temp.

PE PA

C o m b i n e

d p H

e l e c t r o d e

T e m p e r a

t u r e s e n s o r P t 1 0 0

S S11 12 14 15

pH

Signal line MK

32 31

Load(measuringtransmitterevaluation unit)

Junction boxVBM / VBM-Ex

Measuring cable CPK 2

Measuringtransmittersupply unit

bn

gn wt

ye

blk

rd

P o t e n t i a l

m a t c h i n g p i n

21 3 4 5 6 7

bn

gn wt

ye

bl

bn gn / wt / ye blk rd / bl (not connected)

P - C O N - 1 . E

P S

blk

13

Fig. 4.4: Connection of BitopCPM 440 / 440 Z

to combined pH electrodeand temperature sensorPt 100 in assemblieswith potential matchingpin

The black semiconductor layer

ote

When ready-made measuring cableCPK 2 is used, pH electrodes andPt 100 temperature sensors may beconnected directly without using thejunction box VBM (VBM-Ex).


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Temp.

C o m b i n e

d p H

e l e c t r o d e

T e m p e r a

t u r e s e n s o r P t 1 0 0

pH

Signal line MK





bn

gn wt

ye

blk

rd

21 3 4 5 6 7

bn

gn wt

ye

bl

bn gn / wt / ye blk rd / bl (not connected)

P - C O N - 2 . E

P S

blk

PE PAS S11 12 14 15 32 3113

Fig. 4.5: Connection of BitopCPM 440 / 440 Zto combined pH electrodeand temperature sensorPt 100 in assemblieswithout potentialmatching pin

Note:When ready-made measuring cableCPK 2 is used, pH electrodes andPt 100 temperature sensors may beconnected directly without using ajunction box VBM (VBM-Ex).

The black semiconductor layer must be removed!

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Warning:

The connection diagram isshowing symmetrical connectionwith potential matching pin. In caseof connection without potentialmatching pin, connect terminals12 and 15 additionally

and

connect screen (bn) to terminal PEinstead of to terminal PA

Note:Cable screen is pre-connectedwith the brown litz by factory.

Fig. 4.6: Connection of BitopCPM 440 / 440 Z tocombined pH eclectrodeCPS 1 with integratedtemperature sensor Pt 100in assemblies with potential matching pin

Temp.

Combined pH electrode CPS 1 with:

Reference electrode

Temperature sensor Pt 100

Measuring electrode

P o t e n t i a l m a t c h i n g p i n

pH

Signal line MK




yegn wt blk

bn

P - C

O N - 5 . E

P S

bn

PE PAS S11 12 14 15 32 3113


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3

Temp.

S i n g l e p H

e l e c t r o d e

T e m p

e r a t u r e s e n s o r P t 1 0 0

pH

Signal line MKbn

gn wt

ye

P o t e n

t i a l m a t c h i n g p i n

21 3 4 5 6 7 8

bn

gn wt

ye

bl

bn gn / wt / ye blk

R e f e r e n c e e l e c t r o d e

rd / bl

rd

CableCPK 3

Connection version withseparate reference electrodein electrolyte vesselDEE / DEW

blrd

P - C O N - 3 . E

P S



blk



blk

Electrolyte vessel DEE / DEWwith reference electrode,e.g. CPS 13-0TD GSA

PE PAS S11 12 14 15 32 3113

Fig. 4.7: Connection of BitopCPM 440 / 440 Z tosingle pH electrode,reference electrode andtemperature sensor Pt 100in assemblies with potential matching pin

P P D E E 1 A . G

E M

Note:When ready-made measuring cableCPK 2 is used, pH electrodes andPt 100 temperature sensors may beconnected directly without using ajunction box VBM (VBM-Ex).

The black semiconductor layer must be removed!

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3

Temp.

S i n g l e p H

e l e c t r o d e

T e

m p e r a t u r e s e n s o r P t 1 0 0

pH

Signal line MK

Measuring cableCPK 6

gn

rd

P o

t e n t i a l m a t c h i n g p i n

21 3 4 5 6 7 8

bn wt wt

ye / gn

Sensopac CPA 320

ye / gn

D o u b l e r e f e r e n c e e l e c t r o d e

∆ pH

gn

rdbn wt wt

ye / gn

Measuring cableCPK 6

Cover screenconnection

Reference systemmain measuring circuit

Reference systemmonitoring measuringcircuit

ye / gn

gn bn wt rd wt


P - C O N - 4 . E

P S



bn

PE PAS S11 12 14 15 32 3113

Fig. 4.8: Connection of BitopCPM 440 / 440 Z topH / Redox compactelectrode systemSensopac CPA 320

Note:When ready-made measuring cableCPK 6 is used, the compactelectrode system Sensopac CPA320 may be connecteddirectly without using the

junction box VBM (VBM-Ex).


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5. Start-up

The maximum permissible load resistance(RBmax) is calculated using the followingformula:

RBmax = Us – 14 V

22 mA

The maximum supply voltages (Us) are:• Bitop CPM 440 (non-Ex unit): 40 V• Bitop CPM 440 Z (Ex unit): 24 V

The minimum required supply voltage of thetransmitter power supply unit depends on theload resistance of the current loop.

5.1 Switching on

The measured value display is enabled whenthe operating voltage is applied.The supply or signal current is approx. 22 mAuntil measurements are initiated.

Reset sequence with an activation period ofapprox. 4 seconds in each case(see below for sequence):

• Continuous display of all display segments(approx. 10 seconds)

• Flashing display of all display segments

•No value display

• Measuring mode is initiated(Matrix position V0 / H0 ; see chapter 6)

Fig. 5.1: Permissible loadresistance (RB) dependson supply voltage (U) forBitop CPM 440 andBitop CPM 440 Z (Ex unit)

1000 Ω

500 Ω

1420 25 30 3515 40 Volt10

Bitop CPM 440

Bitop CPM 440 Z

Supply voltage (U)

L o a d r e s i s

t a n c e

R B

B U E R D A B H

. G E M

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5.2 Power failure handling

• For short-time interruption the output currentis frozen to current value.

• For longer interruption reset sequence whenthe supply voltage (≥ 14 V) has been back forapprox. 12 seconds.

5.3 Minimum settings

Note:For default setting see:

• Operating matrix(chapter 6.2)

• Description of operating functions

(chapter 6.6)

Minimum settings

Step no. Matrix pos. Function

1 V8 / H9 Activate unlocking– Code 111 for level 1 operation– Code 222 for level 2 start-up

2 V2 / H1 Select ATC or MTC

3(if MTC)

V1 / H1 Input MTC temperature (°C)

4 V0 / H4 Select rate or rise (mA / s)

5 V0 / H5 pH at 4 mA6 V0 / H6 pH at 20 mA

7 V0 / H7 Input of ∆ pH value, which causes an alarm

( only for connection of Sensopac CPA 320 ! )

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6. Operation

6.1 General notes regardingoperation

The operating function of the instrument ismatrix-oriented, i.e. each function type of theunit corresponds to a matrix field positionfrom V0 / H0 to V9 / H9.

The individual operating functions are selectedvia the V (vertical) and H (horizontal) keys.These keys cycle through the matrix fields,including those which have not been assigned.

The functions of the matrix fields are grouped

into three different levels, depending on theirpurpose:

• Level 0: Measurementaccessible without code entry

• Level 1: Operationaccessible with code 111

• Level 2: Start-upaccessible with code 222

Without previous code entry, the content of theindividual matrix fields can only be displayed.Return to matrix field V0 / H0 (measuring) bypressing the V and H keys simultaneously.

Value entry and function selectionby key actuation:

• Value adjustment

• Digit selection:active digit flashes on display

• Accept values:Verification: A value has been

accepted when it isdisplayed continuously

Recall: → key

Note:When there has been an interruptionin operation, the unit automaticallyreturns to the indication andmeasurement mode of operation(V0 / H0).

Fig. 6.1: Bitop CPM 440 / 440 Z

Front of unit with displayand operating elements

Status arrow

Display ofselected matrix

field position

Function key:Selection of

matrix field row

(vertical)

Operating matrixshowing most

importantoperating functions

Labelling field

Measured value /parameter display

Function keys:Selection ofmatrix field column(horizontal)

Increase value

Decrease value

Selection of digit

Acknowledge value(ENTER)

P M 4 4 0 P 3 E . G

E M

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6.2 Matrix user interface

P M 4 4 0 P 4 E . G

E M

Matrix position V / H

V key:Selection of rowsMatrix fields V0 to V9

Every press of the V key increasesthe V (row) display by one.

H key:Selection of columnsMatrix fields H0 to H9

Every press of the H key increasesthe H (column) display by one.

P M 4 4 0 P 5 E . G

E M

Value range display or entry

Display for locked matrix fields:

Display for changeable matrix fields:Digit which can be edited flashes.

Value entry and function selection bykey actuation:

Increase value

Decrease value

– Select digit, i.e.selected digit flashes on display

– Start entry– Recall after E

Accept valueThe value has been acceptedif it is displayed continuously.

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0 1 2 3

0 MeasuringTemperature

displayZero display

0.00 to 14.0 pH –26 to +106 °C 4.50 to 9.50 pH

1 CalibrationEntry

MTC temperatureSlope display

0.00 to 14.0 pHor measured value

–25 to +150 °C 40 to 62 mV / pH

2HOLD

ON / OFFMTC / ATCswitching ∆-ref display

0 = OFF1 = ON

0 = MTC1 = ATC

0.00 to 1.00 pH

3

4

5

6

7

8

9 Current / last error Current / next-to-last error

Current / third last error

Software version

E00 to E99 E00 to E99 E00 to E99 00.00 to 99.99

H

V

6.3 Operating matrix (see chapter 6.6 for operating functions.)

Level 0 Level 1 Level 2


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4 5 6 7 8 9

Rate of risemA / s

pH at 4 mA pH at 20 mA ∆-ref limit setting

0.1 to 20.0 mA / s 000 to 012 pH 002 to 014 pH 0.00 to 1.00 pH

Unlock / lock

000 to 999

Factory settings(Default)

Output currentsimulation

dEF 0.00 to 14.0 pH

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6.4 Calibration

(matrix position V1 / H0)

Function

Matrix

fieldcommand Display value Unit display Note

Unlockcalibration menu 1)

V8 / H9:111E

111Unlock level 1;then go toV1 / H0

Immerse pH electrode and potential matching pin (if existing)in buffer solution 1.

Calibration withbuffer solution 1

V1 / H0 currentpH meas. value,

e.g.

Set display value 1 → , ↑ , ↓ buffer value 1,e.g.

Selected digitflashes.

Acknowledgedisplay valuefor buffer 1

E currentpH meas. value,

e.g.

Immerse pH electrode and potential matching pin (if existing)in buffer solution 2.

Calibration withbuffer solution 2

V1 / H0 currentpH meas. value,

e.g.

Set display value 2 → , ↑ , ↓ buffer value 2,e.g.

Selected digitflashes.

Acknowledgedisplay value

for buffer 2

E currentpH meas. value,

e.g.

Put pH electrode and potential matching pin (if existing)back into the medium to be measured.

Measure V and Hat the

same time

currentpH meas. value,

e.g.

Lock calibration menue(if required)

V8 / H9 Last digitflashes.To lock:Press the E key

Note:

1) As soon as V1/H0 (calibration) is selected, the HOLD arrow is automaticallydisplayed along with the CAL arrow.

Interruption of calibration routineThe calibration is interrupted when the V and H keys are pressed simultaneouslyduring the calibration routine (i.e. before confirmation of second buffer).Previous calibration values remain unchanged.


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6.5 pH measurement inhazardous areas

Versions of units identified by the letter Z (for"Zertifikat", i.e. certificate) are manufacturedand tested according to the unified Europeanregulations (CENELEC) for “Electricalequipment for areas subject to explosionhazard”.

Installation and operation are regulated bya comprehensive body of standards andregulations:

• “Regulation for electrical installations inhazardous areas” (Elex V)

• “Regulation for flammable liquids” (VbF)• “Equipment safety law” (GSG)• “Explosion guidelines of the BG-Chemie”

(EX-RL)

• “UVV: Electrical installations and equipment”

The 2-wire pH measuring transmitterBitop CPM 440 Z, constructed accordingto the regulations for EX devices, may beinstalled in Ex zone 1 (see chapter 9.2“Certificate of conformity”).

A measuring transmitter supply unit withan intrinsically safe supply current circuit(e.g. Endress+Hauser, type NY 9170Z) isrequired to supply power to the BitopCPM 440 Z (see chapter 9.1).

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6.6 Description of

operating functions

Matrix

pos.V / H

Description of function

Parameter

settingsFact. User

0 / 0 MeasuringDisplay of pH measuring value

0.00 to 14.00 pH

Use the E key to jump directly to field V8 / H9 (Unlock / Lock).

0 / 1 Temperature displayDisplay of temperature in °C

–26 to +106 °C

Caution:If MTC is entered in matrix field V2 / H1, the temperature isdisplayed according to the sensor signal at the temperatureinput.

0 / 2 Zero-point displayDisplay of zero point of measuring chain

4.50 to 9.50 pH7.00

0 / 4 Rate of rise mA / s (damping)Sets the rate of rise of the current outputfor the measured value.

0.1 to 20.0 mA / s

10.0

0 / 5 pH at 4 mAEntry of pH value for the lower current output 4 mA

000 to 012 pH

If below a minimum difference of 2 pH between the values

in fields V0 / H5 and V0 / H6, error message E05 is issued.

0

0 / 6 pH at 20 mAEntry of pH value for the upper current output 20 mA

002 to 014 pH

If below a minimum difference of 2 pH between the valuesin fields V0 / H5 and V0 / H6, error message E05 is issued.

14

0 / 7 ∆-ref limit settingSetting of the permissible difference value between referencesystem main measuring circuit and reference systemmonitoring measuring circuit in pH values.

0.00 to 1.00 pH

Caution:

This field is only valid for instrument versions for thepH / Redox compact electrode system Sensopac CPA 320!

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Matrixpos.V / H

Description of functionParametersettings

Fact. User

Matrix fields V9 / H0 to V9 / H2:

The alarm arrow flashes until all error causes are remedied.Irrespective of this, the last error numbers registered in fields V9 / H0 to V9 / H2 remain.

9 / 0 Current / last error Display of the current or last error.

E00 to E99

Caution:The error number remains after the error cause has beenremedied until a new error occurs.

9 / 1 Current / next-to-last error Display of the next-to-last or still current error displayedvia matrix field V9 / H0.

E00 to E99

9 / 2 Current / third last error Display of the third last or still current error displayedvia matrix field V9 / H0.

E00 to E99

9 / 3 Software version Displays the software version of the unit according toEndress+Hauser Conducta standards.

0.00 to 9.99

9 / 5 Factory settings (default) Press the E key to restore the factory settings for theparameters as specified for the individual fields.

– Selecting this field displays the text “dEF”.– The display remains dark for appox. 10 seconds

after the E key had been pressed.– “dEF” is displayed when the defaults have been restored.

This function overwrites all parameters entered by the user.

9 / 8 Output current simulation Entry of current value not affected by measurementwhich is applied to the output.

0.0 to 14.0 pH

The new value takes effect after pressing the E key.Once the field has been released, the value flashes and can beedited. The new current takes effect after pressing the E key.The constant current function is disabled by leavingthe matrix field.

12.0


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7. Error handling andmaintenance

7.1 Error handling

Faults occurring during operation areindicated in two ways:

• by a flashing status arrow on the measuredvalue display next to the horn symbol

• by increased supply current consumption(value = 22 mA) for different operatingconditions (see table below, )

The numbers of error codes can be shown inthe display by selecting the matrix fieldsV9 / H0 to V9 / H2.

No. MeaningMeasures for

error handling / maintenance

E00 No error detected, i.e.instrument fuctions are o.k. 1) None

E01 Calibration values out of range, i.e.

no recalibration(measurement with old values)

Repeat calibration andpossibly change sensor

E02 ∆-ref alarm occurs if the selectedmeasuring circuit difference is exceededon the 2-circuit unit, i.e.output current value = 22 mA 2)

Replace bridge electrolyte on thepH / Redox compact electrode systemSensopac CPA 320 and recalibrate;possibly replace sensor.

E03 Measuring range exceeded, i.e.current measured value shows on display;current output, however, at upper or lowerlimit

Check control circuit orsensor calibration.

E05 Current window too small, i.e.measuring continues with old parameters

Minimum ∆ pH for 4 … 20 mAmust be >2 pH.

E06 Temperature range exceeded, i.e.

indicated value = 106 °C andoutput current value = 22 mA 2) Check sensor or cable.

E70 EEPROM write error;measuring mode

Repeat operating sequence;hardware may be defective.

E80 Absolute ∆-ref value excessiveoutput current value = 22 mA 2) Replace double reference sensor.

E90 Measured value input out of range, i.e.output current value = 22 mA 2)

Check instrument wiring;hardware may be defective.

Notes:

1)

E00 will not appear in case of errors E01 to E99.

2) At the alarms E02, E06, E80 and E90, the current is set to the value 22 mA.Then the signal can be detected in a switchboard cabinet.

7.2 Error list

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7.3 Maintenance

Error symptom , possible cause Measures for error handling / maintenance

Maintenance

Instrument with sensor See chapter 6.4 "Calibration"

General error handling

No display, i.e.no supply voltage or polarity reversed

Check connection and transmitter supply unit.

Measured value display unsteady, i.e.line screens not connected or

sensor line interrupted

– Check sensor connecting lines;– possibly potential matching pin not connected

– or bridge between terminals 3 and 6 missing

Error message(s) See chapter 7.1 "Error list"

Error handling and maintenance of thepH / Redox compact electrode systemSensopac CPA 320

See separate installation and operating instructionsfor pH / Redox compact electrode systemSensopac CPA 320(BA 042C/07/e)

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8. Technical data

8.1 Measuring technical data

pH measurementMeasuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0… 14 pHDisplay range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –8.00 … +19.99 pHMeasurement drift (to DIN IEC 746) . . . . . . . . . . . . . . . . . . . . . . . . . . max. ± 0.07 pH or 7 digitMeasured value transmission range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ∆ 2 … ∆ 14 pHZeropoint display and shift range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.50 … 9.50 pHSlope display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 … 62 mV / pHTemperature compensation automatic (Pt 100) . . . . . . . . . . . . . . . . . . . . . . . . . –26… +106 °CTemperature compensation manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25… +150 °C∆-ref adjustment range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.00 … 1.00 ∆ pH

Measured value inputInput resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 × 1012 Ω

Input leakage current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . typ. 0.8 pA

Measured value outputOutput current measuring mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 … 20 mA DCMax. output current during system reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 mA DCLoad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Us = 38 V, max. 1000 ΩError of measurement (to DIN IEC 746) . . . . . . . . . . . . . . . . . . . . . . max. ±1 % of output rangeTwo-wire current supply . . . . . . . . . . . . . . . . . . . . . . . . . via measuring transmitter supply unitError indication via measured value output . . . . . . . . . . . . . . . . . . . . . output current = 22 mA

Temperature measurementTemperature measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –26… +106 °C

Temperature entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . via function keysTemperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pt 100, 3-wire connection

General technical dataMeasured value display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mm LCD, 31 ⁄ 2 digitStatus indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 arrows in LCD fieldError indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . flashing status arrow next to horn symbolRadio interference suppression (DIN VDE 0871, IEC: CISPR11, EN 55011). . . . . . limit class BInterference resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . according to IEC 801 or NamurAmbient temperature Nominal operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –10 … +55 °C Limit operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25… +60 °CRelative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 … 90 %

Electrical data and connectionsNon-Ex voltage supply (Bitop CPM 440) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 … 40 V DCEx voltage supply (Bitop CPM 440 Z). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 … 24 V DCTerminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . terminal blocks Max. conductor cross section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 mm2

Cable glands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . twice Pg 13.5

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8.2 Physical data

DimensionsBitop CPM 440 / CPM 440 Z. . . . . . . . . . . . . . . . . . . . . . . . . . 204 × 155 × 206 mm (H × W × D)

WeightsBitop CPM 440 / CPM 440 Z. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 2 kg

MaterialsHousing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . weather and impact-resistant polycarbonateFront cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . transparent polycarbonate

Ingress protectionBitop CPM 440 (DIN 50 050) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP 65Bitop CPM 440 Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EEx m ib / ia IIC T6; IP 65Certificate of conformity (CENELEC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L.C.I.E91.C 6073 X

8. Technical data bitop CPM 440 / 440 Z

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9. Appendix

9.1 Accessories

The following accessories for Bitop may be

ordered separately:

Devices

• Weather protection cover VH3Weather protection cover for installation onBitop CPM 440 / 440 ZDimensions: 245 x 200 x 310 mm (L x W x D)Material: plastic(order no. 50003254)

• Post mounting kitRetrofitting kit for installation ofBitop CPM 440 / 440 Z on horizontal orvertical pipes (max. diameter 65 mm)

Material: galvanised steel(order no. 50003244)

• Upright post VM3For post installation ofBitop CPM 440 / 440 ZMaterial: hot-dip galvanised steel(order no. 50003248)

• Junction box VBEFor connection of up to 3 single lines fromEX zone 0 electrodes to combinationmeasuring cables (e.g. DMK or PMK)Dimensions: 125 x 80 x 55 mm (L x W x H)

Material: cast aluminium, paintedIngress protection: IP 65(order no. 50003993)

• Junction box VBMTo extend a DMK measuring cable(e.g. extension of the 5 m signal cablefrom the pH / Redox compact electrodesystem Sensopac CPA 320)Dimensions: 125 x 80 x 55 mm (L x W x H)Material: painted cast aluminumwith 2 Pg 13.5 cable glands;10 internal terminal blocks (high-resistance),Ingress protection: IP 65(order no. 50003987)

• Junction box VBM - Exsame as VBM but for intrinsically safemeasuring circuits(order no. 50003991)

• Transmitter supply unit, e.g.– NX 9120 for Bitop CPM 440 (non-Ex unit)– NX 9170Z for Bitop CPM 440 Z (Ex unit)1-channel measuring transmitter supply unitwith galvanically isolated output lineOutput voltage: typ. 24 V DC ±1 VOutput current: max. 33 mACurrent limiting: 38 mA ±5 mA

Cables

• CPK 1Special coaxial pH / redox connecting cablewith dual screen, in PVC sheathLength: min. 5 mCable diameter: 8 mmTemperature range: –25 °C to +85 °C(order no. CPK 1-05)

• CPK 2Special coaxial pH / redox connecting cablefitted with three pre-assembled electrodeplugs on one end (e.g. for redox electrodes,Pt-100) and plug for potential matching pin;low-noise coaxial cable with 6 additionalauxiliary cores (0.5 mm2 per core),additional outer screen, in PVC sheathLength: min. 5 m

Cable diameter: 12 mmTemperature range: –25 °C to +85 °C(order no. CPK 2-05)

• CPK 3Connecting cable for pH / Redox electrodes,single shielded, with one electrode plugLength: min. 1.5 mCable diameter: 5 mmTemperature range: up to max. +80 °C(order no. CPK 3-01)

• CPK 6pH connecting cable for pH / Redox compactelectrode system Sensopac CPA 320 with

fitted electrode plugs, three auxiliary cores(each 0.75 mm2) for temperature, potentialmatching pin and shieldingLength: min. 5 mCable diameter: 11 mm(order no. CPK 6-05)

• CPK 7Special pH cable for electrodeswith an integrated temperature sensor Pt 100,with dual screen, in PVC sheath, with anelectrode plug and connector for potentialmatching pinLength: min. 5 m

Cable diameter: 12 mmTemperature range: –25 °C to +85 °C(order no. CPK 7-05

Supplementary documentation

Technical informationpH / Redox measurementBitop CPM 440 / 440 ZTI 002C/07/e

Installation and operating instructionspH / Redox compact electrode systemSensopac CPA 320

BA 042C/07/e

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9.3 Conformity certificates

LCIE1-PH.TIF LCIE2-PH.TIF

LCIE3-PH.TIF LCIE4-PH.TIF

9. Appendix bitop CPM 440 / 440 Z

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LCIE5-PH.TIF

CERT1s.TIFCERT.TIF

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EX1WIEN.TIF EX2WIEN.TIF

EX3WIEN.TIF

9. Appendix bitop CPM 440 / 440 Z

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EX1ZUERI.TIF EX2ZUERI.TIF

EX3ZUERI.TIF

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10. Index

AAccess code. . . . . . . . . . . . . . . . . . . . . . . . . 23Access code 111 (Operation) . . . . . . . . 14, 23Access code 222 (Start-up) . . . . . . . . . . 14, 23

Accessories . . . . . . . . . . . . . . . . . . 3, 4, 5, 29Accessories for installation. . . . . . . . . . . . . . . 5Appendix. . . . . . . . . . . . . . . . . . 29, 31, 32, 33Application . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

BBasics for connection . . . . . . . . . . . . . . . . . . . 6Bitop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

CCable CPK 1 . . . . . . . . . . . . . . . . . . . . . . . . . 29Cable CPK 2 . . . . . . . . . . . . . . . . . 8, 9, 11, 29Cable CPK 3 . . . . . . . . . . . . . . . . . . . . . . 11, 29Cable CPK 6 . . . . . . . . . . . . . . . . . . . . . . 12, 29Cable CPK 7 . . . . . . . . . . . . . . . . . . . . . . 10, 29

Calibration. . . . . . . . . . . . . . . . . . . . . . . . 20, 23Combined pH electrode . . . . . . . . . . . . . . . . 10Conformity certificate . . . . . 29, 30, 31, 32, 33connecting plug . . . . . . . . . . . . . . . . . . . . . . . 7Connecting socket VBE . . . . . . . . . . . . . . . . . 5Connecting socket VBM. . . . . . . . . . . . . . . . . 5Connection diagram . . . . . . . . 8, 9, 10, 11, 12Connection of Bitop . . . . . . . . . . . . . . . . . . . . 8Continuous display . . . . . . . . . . . . . . . . . . . . 13Current / last error. . . . . . . . . . . . . . . . . . . . . 24Current / next-to-last error. . . . . . . . . . . . . . . 24Current / third last error. . . . . . . . . . . . . . . . . 24

D

Delta ref display . . . . . . . . . . . . . . . . . . . . . . 23Delta ref limit setting . . . . . . . . . . . . . . . . . . . 22Description of operating functions . 22, 23, 24Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 4, 28Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Display and operating elements. . . . . . . . . . 16Display for changeable matrix fields . . . . . . 17Display for locked matrix fields. . . . . . . . . . . 17Double reference electrode . . . . . . . . . . . . . 12

EElectrical connection. . . . . . . . . . 6, 7, 8, 9, 12Entry MTC temperature. . . . . . . . . . . . . . . . . 23Error code . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Error handling . . . . . . . . . . . . . . . . . . . . . . . . 25

Error handling and maintenance . . . . . . 25, 26Error list . . . . . . . . . . . . . . . . . . . . . . . . . . . 6, 25Ex version . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

FFactory settings (default) . . . . . . . . . . . . . . . 24Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Flashing display . . . . . . . . . . . . . . . . . . . . . . 13Front cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

GGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2General error handling . . . . . . . . . . . . . . . . . 26General notes regarding operation . . . . . . . 16

HHexagon socket-head screws . . . . . . . . . . . . 7HOLD ON / OFF . . . . . . . . . . . . . . . . . . . . . . 23Housing and mounting dimensions . . . . . . . . 4

IIngress protection . . . . . . . . . . . . . . . . . . . . 28Installation . . . . . . . . . . . . . . . . . . . . . . . . . 4, 5Interruption in operation. . . . . . . . . . . . . . . . 16

JJunction box . . . . . . . . . . . . . . . . . . . . . . . . . . 9Junction box VBM . . . . . . . . . . . . . . 11, 12, 29Junction box VBM / VBM-Ex . . . . . . . . . . . . . 5Junction box VBM-Ex. . . . . . . . . . . . . . . 12, 29

LLevel 0 (measurement) . . . . . . . . . . . . . 18, 23Level 1 (Operation) . . . . . . . . . . . . . 14, 18, 23

Level 2 (Start-up) . . . . . . . . . . . . . . . 14, 18, 23Levl 2 (start-up) . . . . . . . . . . . . . . . . . . . . . . 23Load resistance . . . . . . . . . . . . . . . . . . . . . . 13

MMain measuring circuit. . . . . . . . . . . . . . 22, 23Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . 26Material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Matrix field . . . . . . . . . . . . . . . . . . . . . . . 13, 23Matrix position . . . . . . . . . . . . . . . . . . . . . . . 13Matrix user interface. . . . . . . . . . . . . . . . . . . 17Measrung technical data . . . . . . . . . . . . . . . 27Measures for error handling /

maintenance . . . . . . . . . . . . . . . . . . . . 25, 26

Measures for error handlingand maintenance. . . . . . . . . . . . . . . . . 25, 26Measuring. . . . . . . . . . . . . . . . . . . . . . . . 13, 22Measuring system . . . . . . . . . . . . . . . . . . . . . 2Measuring transmitter . . . . . . . . . . . . . . . . . . 2Measuring transmitter power supply unit . . . 2Minimum settings . . . . . . . . . . . . . . . . . . . . . 14Monitoring measuring circuit . . . . . . 12, 22, 23Mounting brackets . . . . . . . . . . . . . . . . . . . . . 4MTC / ATC switching . . . . . . . . . . . . . . . . . . 23

NNameplate . . . . . . . . . . . . . . . . . . . . . . . . . 2, 3Nameplate CPM 440 . . . . . . . . . . . . . . . . . . . 3Nameplate CPM 440 Z. . . . . . . . . . . . . . . . . . 3

No value display. . . . . . . . . . . . . . . . . . . . . . 13None (measurement) . . . . . . . . . . . . . . . . . . 23

OOperating function . . . . . . . . . . . . . . . . . . . . 16Operating voltage. . . . . . . . . . . . . . . . . . . . . 13Operation . . . 16, 17, 18, 19, 20, 21, 22, 23, 24Operation matrix. . . . . . . . . . . . . . . . . . . 18, 19Outdoor installation . . . . . . . . . . . . . . . . . . . . 5Output current simulation. . . . . . . . . . . . . . . 24Output current value . . . . . . . . . . . . . . . . . . 14

10. Index bitop CPM 440 / 440 Z

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PPermissible load resistance. . . . . . . . . . . . . 13Pg cable gland Pg 13.5. . . . . . . . . . . . . . . . . 5Pg cable gland Pg 7 . . . . . . . . . . . . . . . . . . . 5

pH at 20 mA. . . . . . . . . . . . . . . . . . . . . . . . . 22pH at 4 mA. . . . . . . . . . . . . . . . . . . . . . . . . . 22pH electrodes . . . . . . . . . . . . . . . . . . . . . . . . 5pH measurement in Ex area . . . . . . . . . . . . 21Physical data . . . . . . . . . . . . . . . . . . . . . . . . 28Plug-in measuring transmitter . . . . . . . . . . . . 7Post mounting . . . . . . . . . . . . . . . . . . . . . . . . 4Post mounting kit . . . . . . . . . . . . . . . . . . . 4, 29Potential matching pin . . . . . . . . . . . . 8, 10, 11Potentil matching pin . . . . . . . . . . . . . . . . . . 12Power faiture handling. . . . . . . . . . . . . . . . . 14Pt 100 temperature sensors . . . . . . . . . . . . . 5

RRate of rise mA/s . . . . . . . . . . . . . . . . . . . . . 22

Reference electrode . . . . . . . . . . . . . . . 10, 11Double reference electrode . . . . . . . . . . . 12

Reference system . . . . . . . . . . . . . . . . . . . . 12Main measuring circuit . . . . . . . . . . . . . . . 12

Reset sequence. . . . . . . . . . . . . . . . . . . . . . 14

SScope of supply. . . . . . . . . . . . . . . . . . . . . . . 3Selection of matrix fiel rows . . . . . . . . . . . . . 17Selection of matrix field columns. . . . . . . . . 17Sensopac CPA 320 . . . . . . . . . . . . . . . . . . . 12Signal current. . . . . . . . . . . . . . . . . . . . . . . . 13Signal line MK . . . . . . . . . . . . . 8, 9, 10, 11, 12Single pH electrode. . . . . . . . . . . . . . . . 11, 12

Slope display . . . . . . . . . . . . . . . . . . . . . . . . 23Software version . . . . . . . . . . . . . . . . . . . . . 24Start-up . . . . . . . . . . . . . . . . . . . . . . . . . 13, 14Status arrow. . . . . . . . . . . . . . . . . . . . . . . . . 16Supply current . . . . . . . . . . . . . . . . . . . . . . . 13Supply voltage. . . . . . . . . . . . . . . . . . . . 13, 14Switching on . . . . . . . . . . . . . . . . . . . . . . . . 13

TTable of contents . . . . . . . . . . . . . . . . . . . . . . 1Technical data . . . . . . . . . . . . . . . . . . . . 27, 28Temeperature sensor Pt 100. . . . . . . . . . . . 12Temperature display . . . . . . . . . . . . . . . . . . 22Temperature sensor Pt 100 . . . . . . 8, 9, 10, 11Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Transmitter connections . . . . . . . . . . . . . . . . 7Transmitter supply unit . . . . . . . . . . . . . . . . 29Two-wire measuring . . . . . . . . . . . . . . . . . 2, 3Two-wire measuring technology . . . . . . . . . . 2Type of protection . . . . . . . . . . . . . . . . . . . . . 2Types of installation . . . . . . . . . . . . . . . . . . . . 4

UUnit connections . . . . . . . . . . . . . . . . . . . . . . 7Unit order code . . . . . . . . . . . . . . . . . . . . . . . 2Unlock / Lock. . . . . . . . . . . . . . . . . . . . . . . . 23Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Upright post VM3. . . . . . . . . . . . . . . . . . . . . 29

VValue entry and function selection . . . . 16, 17VBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5VBM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8, 9

VBM-Ex . . . . . . . . . . . . . . . . . . . . . . . . . 5, 8, 9version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

WWall mounting . . . . . . . . . . . . . . . . . . . . . . . . 4Weather protection cover . . . . . . . . . . . . . . . 5Weather protection cover VH3 . . . . . . . . 5, 29Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Wiring space . . . . . . . . . . . . . . . . . . . . . . . . . 7

ZZero-point display. . . . . . . . . . . . . . . . . . . . 22

BE06BITP.CHP

bitop CPM 440 / 440 Z 10. Index

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Europe

Austria Endress+Hauser Ges.m.b.H.WienTel. (0222) 880 56-0, Fax (0222) 8 8056-35

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Tel. (422) 5406 11, Fax (422) 5502 75Malaysia Endress+Hauser (M) Sdn. Bhd.Petaling Jaya, Selangor Darul EhsanTel. (03) 733 4848, Fax (03) 733 8800

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DubaiTel. (04) 359522, Fax (04) 3596 17

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