JUMO tecLine CR-4P Operating Instructions Manual

JUMO tecLine CR-4P

Conductive 4-electrode conductivity sensor

Type 202930

B 202930.0

Operating Instructions

2012-04-05/00502496

WARNING:

Incorrect measurement values or failure of the instrument or a transmitter
connected to it, could potentially cause dangerous, imprecise dosing or a system
malfunction!
Suitable preventive measures to stop this happening must be in place.

Note:

Please read these operating instructions before commissioning the instrument.
Keep the manual in a place which is accessible to all users at all times.

If any difficulties should arise during startup, please do not tamper with the
instrument in any way. By doing so, you could endanger your rights under the
instrument warranty! Please contact your supplier.

Contents

1 Typographical conventions ...................................................... 5

1.1 Warning signs ..............................................................................................5

1.2 Reference signs ...........................................................................................5

2 Description ................................................................................ 6

3 Instrument identification .......................................................... 8

3.1 Nameplate ....................................................................................................8

3.2 Type description ..........................................................................................8

3.3 Accessories ..................................................................................................9

4 Mounting .................................................................................. 10

4.1 General .......................................................................................................10

4.2 JUMO PEKA process connection adapter .................................................11

4.3 Mounting suggestions ................................................................................11

5 Installation ............................................................................... 15

5.1 Electrical connection ..................................................................................15

5.2 Terminal assignment and wiring colors .....................................................15

5.3 CR-4P cable ...............................................................................................16

5.4 Connection example ..................................................................................17

6 Calibration ............................................................................... 19

6.1 Notes ..........................................................................................................19

6.2 General .......................................................................................................19

6.3 JUMO AQUIS 500 CR settings ..................................................................19

7 Maintenance/troubleshooting ............................................... 20

7.1 Cleaning the conductivity sensor ...............................................................20

7.2 Troubleshooting .........................................................................................21

8 Technical data ......................................................................... 22

1.1 Warning signs

Danger

This symbol is used when there may be danger to personnel if the
instructions are ignored or not followed correctly!

Caution

This symbol is used when there may be damage to equipment or data if the
instructions are ignored or not followed correctly!

1.2 Reference signs

Note
This symbol is used to draw your special attention to a remark.

1 Typographical conventions

1

abc

✱ Action instruction

Footnote

Footnotes are remarks that refer to specific points in the text. Footnotes
consist of two parts:

A marker in the text and the footnote text.
The markers in the text are arranged as consecutive superscript numbers.

This symbol indicates that an action to be performed is described.
The individual steps are marked by this asterisk.
Example:
✱ Connect the cable.

5

2 Description

General

Conductive conductivity sensors are used in conjunction with suitable
transmitters in industrial analysis measurement technology to determine the
electrolytic conductivity of liquids.

The JUMO tecLine CR-4P fills the gap between conductive conductivity
measurement with two-electrode measuring sensors, and inductive
conductivity measurement.

Four-pin technology makes it possible to cover a very wide measuring range
from about 1 µS/cm to 600 mS/cm, with just one measuring sensor.

The hygienic design of the sensor and the EHEDG-certified system for process
connection (JUMO PEKA), mean that it can be used in pharmaceutical and
food technology without difficulty. JUMO PEKA is an adapter system that
combines the measuring sensor with the process connection. All the materials
are physiologically safe, and meet FDA standards.

Stainless steel electrodes are inserted into a circular, plastic body. The process
seal provided as standard is an EPDM O-ring. A fast-response temperature
probe delivers information about the process temperature to the measurement
amplifier. Electrical connection is made via an M12 connector.

The measuring sensor is available in three fitting lengths, for optimum
installation in different pipe diameters. The measuring sensor can also be
installed in container walls. No incident flow is required to make it work, but is
recommended for fast, stable measurement values and to prevent the
accumulation of deposits.

Operative range

Note

Key features

A certificate of quality is included among the items supplied (exact cell
constant, FDA approval for the material, typical surface roughness, etc.).

Their vast measuring range of 1 µS/cm to 600 mS/cm, allows the sensors to
be used in washing processes in food and drink applications, pharmaceuticals
and biotechnology, where the different conductivities have to be safely
recorded by a measuring system (e.g. CIP/SIP applications, reverse processes
in ion exchangers, phase separation, bottle cleaning plants, process water).

Used in combination with the JUMO AQUIS 500 CR transmitter/controller, as
per data sheet 202565 and JUMO PEKA process connection adapters as per
data sheet 409711.

• Vast measuring range

• EHEDG-certified process connections (clamp, Varivent

• CIP/SIP capability

• Design complies with EHEDG and FDA standards

• Certificate of quality included

®

, aseptic NKS)

6

Function

voltage/current

voltage

current/voltage

control

voltage measurement

(1) (4)

(2)

(3)

(2)

(3)

(4)

(4)

(1)

(4)

(1)

(1)

(5)

2 Description

The measuring sensors have two pairs of electrodes. The transmitter applies
alternating current at the outer pair of electrodes. A voltage is released at the
inner electrodes - subject to the conductivity of the measuring material. The
transmitter acquires the voltage and uses it to calculate the electrolytic
conductivity value. Functionally, excitation and measurement are kept
separate. This has some advantages compared to 2-electrode measuring
sensors, as the effects of polarization recede into the background. To a large
extent, incoming resistances are automatically compensated. Measurement
errors as a result of contamination or deposits, are reduced.

Measuring sensors

(1) Current supply, outer electrode 1 6
(2) Voltage tap, inner electrode 1 7
(3) Voltage tap, inner electrode 2 3
(4) Current supply, outer electrode 2 4
(5) Pt1000 temperature probe 1, 2 and 5

Description M12 connector pin

7

3 Instrument identification

JUMO GmbH & Co. KG

Fulda, Germany www.jumo.net

Typ: 202930/10-1005-997-83/000
VARTN: 20/00123456
F-Nr.: 01234567 01 0 0942 0002
Cell M: 0,30 1/cm

3.1 Nameplate

On the measuring sensor

The date of manufacture is encoded in "F-Nr." (serial number):
0942 means year of manufacture 2009/calendar week 42.

3.2 Type description

(1) Basic type

202930 JUMO tecLine CR-4P

(2) Basic type extension

10 Short design
20 Medium design
30 Long design

(3) Temperature compensation

1005 Pt1000

(4) Electrode material

31 Stainless steel 1.4435 (316L)

(5) Process connection

997 JUMO PEKA

(6) Electrical connection

83 M12 connector

(7) Extra codes

000 none

1

Process connection adadpters (see "Accessories") must be ordered separa­tely.

2

The CR-4P cable is required for electrical connection (see "Accessories")!

Conductive 4-electrode conductivity sensor

1

2

Order code /- ---/
Sample order 202930 / 10 - 1005 - 31 - 997 - 83 / 000

8

(1) (2) (3) (4) (5) (6) (7)

3.3 Accessories

Designation Sales No.

CR-4P cable, 5 m, made up, with M12 connector 00528699
CR-4P cable, 10 m, made up, with M12 connector 00528700

3 Instrument identification

JUMO PEKA process
connection adapter for

Varivent DN 40-125 Stainless steel 1.4435/316L 00445046
Varivent DN 40-125 Stainless steel 1.4435/316L;

Clamp DN 25/32/40 Stainless steel 1.4435/316L 00445047
Clamp DN25/32/40 Stainless steel 1.4435/316L;

Clamp DN 50 Stainless steel 1.4435/316L 00445037
Clamp DN 50 Stainless steel 1.4435/316L;

Aseptic DN 40 Stainless steel 1.4435/316L 00446458
Aseptic DN 40 Stainless steel 1.4435/316L;

Aseptic DN 50 Stainless steel 1.4435/316L 00445035
Aseptic DN 50 Stainless steel 1.4435/316L;

Aseptic NKS DN 40 Stainless steel 1.4435/316L 00447555
Aseptic NKS DN 40 Stainless steel 1.4435/316L;

Material Sales No.

00577961
Ra < 0,8 µ
with certificate EN 10204-3.1

00577998
Ra < 0,8 µ
with certificate EN 10204-3.1

00577997
Ra < 0,8 µ
with certificate EN 10204-3.1

00577995
Ra < 0,8 µ
with certificate EN 10204-3.1

00577979
Ra < 0,8 µ
with certificate EN 10204-3.1

00577999
Ra < 0,8 µ
with certificate EN 10204-3.1

9

4 Mounting

M28x1.5

ø22.5

GL

EL

(1)
(2)

(3)

4.1 General

Mounting location

Installation position

Incident flow

Find a location that ensures easy accessibility for the later calibration.
The fastening must be secure and must ensure low vibration for the instrument.
The operating conditions (temperature, pressure, chemical composition of the

measuring material, etc.,) must not be allowed to damage the measuring sensor.
The measuring sensor must not be modified mechanically (e.g. shortened,

drilled, ground).
A minimum distance of at least two meters must be maintained when

installing several JUMO tecLine CR-4P type conductivity sensors.

The conductivity sensor can be mounted in any position. But it is essential to
make sure that the measuring sensor electrodes are fully immersed in the
measuring material.

No incident flow is required to make the conductivity sensor work, but is
recommended for fast, stable measurement values and to prevent the
accumulation of deposits. Structural measures must be taken to prevent flow
separation or gas bubbles in the measuring material.

Immersion length

The immersion length (EL) of the conductivity sensor must be in keeping with
the installation situation.

(1) Width across flats 27
(2) JUMO PEKA process connection

A suitable process connection adapter is an essential requirement of
installation, see below.

(3) 21 × 2.5 O-ring (EPDM)

10

Immersion length EL Total length GL Type

18 126 202930/10
38 146 202930/20
48 156 202930/30

4.2 JUMO PEKA process connection adapter

øD

ø68

L

18

21.5

(2)

(1)

(1)

(3)

(3)

The EHEDG-certified system for process connection – JUMO PEKA – allows it
to be used in pharmaceutical and food technology without difficulty. JUMO
PEKA is an adapter system that combines the measuring sensor with the
process connection. All the materials are physiologically safe, and meet FDA
standards.

4.3 Mounting suggestions

4 Mounting

Varivent

®

(1) JUMO PEKA process connection adapter

Varivent
(2) JUMO tecLine CR-4P conductivity sensor.
(3) The Varivent

is not supplied by JUMO and must be provided by the customer!

®

DN 40-125, sales no.: 00445046

®

housing DN xx

Varivent housing DN Diameter D L Type
40 38 3 202930/10
50 50 9
65 66 18
80 81 24.5
100 100 34

11

4 Mounting

21.5

ø50.5

øD1

øD

L

21.5

ø64

(2)

(1a)

(1)

(3)

(1b)

(4)

Clamp

(1) JUMO PEKA process connection adapter

(1a) Clamp DN 25/32/40, sales no.: 00445046

(1b) Clamp DN 50, sales no.: 00445037
(2) JUMO tecLine CR-4P conductivity sensor.
(3) The DN xx clamp adapter, DIN 32676

is not supplied by JUMO and must be provided by the customer!
(4) The clamp DN xx T-piece, DIN short, similar to DIN 11852

is not supplied by JUMO and must be provided by the customer!

Clamp
adapter DN

25 32-25 32 26 5 202930/20

50 65-50 66 50 15

T-pieceDNDiamter

D

40-25 38 0 202930/30
50-25 50 7
65-25 66 15
80-25 81 20
100-25 100 30

80-50 81 20
100-50 100 30

Diamter
D1

LType

12

Aseptic

øD

L

25

25

ø67

ø55

øD1

(2)

(1a)

(1)

(4)

(1b)

(3)

4 Mounting

(1) JUMO PEKA process connection adapter

(1a) Aseptic DN 40, sales no.: 00446458

(1b) Aseptic DN 50, sales no.: 00445035
(2) JUMO tecLine CR-4P conductivity sensor.
(3) The DN xx threaded adapter, DIN 11864

is not supplied by JUMO and must be provided by the customer!
(4) The DN xx T-piece

is not supplied by JUMO and must be provided by the customer!

Threaded
adapter

40 50-40 50 38 10 202930/30

50 65-50 66 50 18

T-pieceDNDiameter

D

65-40 66 18
80-40 81 27
100-40 100 37

80-50 81 27
100-50 100 37

Diameter
D1

LType

13

4 Mounting

25

øD1

øD

ø64

L

(2)

(1)

(1)

(4)

(3)

Aseptic NKS

(1) JUMO PEKA process connection adapter

Aseptic NKS DN 40, sales no.: 00447555
(2) JUMO tecLine CR-4P conductivity sensor.
(3) Collar clamp adapter NKS DN 40, Form A, DIN 11864-3

is not supplied by JUMO and must be provided by the customer!
(4) The DN xx T-piece

is not supplied by JUMO and must be provided by the customer!

Collar
clamp
adapter

NKS
DN 40
Form A

T-pieceDNDiameter

D

50-40 50 38 10 202930/30
65-40 66 18
80-40 81 27
100-40 100 37

Diameter
D1

LType

14

5.1 Electrical connection

ϑ

1

2

5

1

7

6

5

2

8

3

4

• Lay the input, output, and supply lines so they are physically separated

from each other and are not parallel

• If possible, use the CR-4P cable (see Accessories) to connect the

conductivity sensor; do not lay the connecting cable close to components
or lines through which current is flowing

• The cables must have an uninterrupted run (do not route them via terminal

blocks or similar arrangements)

• No other consumers can be connected to the power terminals of the

instrument

• The conductivity sensor is not suitable for installation in areas with an

explosion hazard

• It is essential to comply with the electrical connection instructions in the

operating manual of the transmitter that is being used

• Apart from faulty installation, incorrect settings on the transmitter may also

affect the proper functioning of the subsequent process or lead to damage;
you should therefore always provide safety equipment that is independent
and it should only be possible for qualified personnel to make settings

5 Installation

5.2 Terminal assignment and wiring colors

Incorrect connection of the conductivity sensor will produce
inaccurate measurement results!

Connection for M12 connector CR-4P cable

Pin Assignment Color

Pt1000 temperature probe
for temperature compensation

Voltage tap inner electrode 2 3 PK
Current entry outer electrode 2 4 BL
Current entry outer electrode 1 6 RD
Voltage tap inner electrode 1 7 GR
NC
Warning: The shielding of the cable has to be connected to the transmitter only – not to the

sensor!

1
2
5

GN
YE
BN

15

5 Installation

YE

ø7.5

GN

BN

WH

BL

GR

PK

RD

5.3 CR-4P cable

Use only the CR-4P cable for conductivity sensor connection:

• CR-4P cable, 5 m, made up, with M12 connector

Sales no.: 00528699

• CR-4P cable, 10 m, made up, with M12 connector

Sales no.: 00528700

M12 cable socket: metal, 8-pin
Cable diameter: 7.5 mm
Cable material: PUR, blue
Ambient temperature: -30 to +80 °C
Cable length: 5 m or 10 m

For metrological reasons, the maximum cable length is limited to 10 m!

16

5.4 Connection example

(1)

(2)

(3)

This example is only valid for connecting the JUMO tecLine CR­4P conductivity sensor to a JUMO AQUIS 500 CR transmitter/
controller for conductivity!

Cable routing in he transmitter

5 Installation

✱ Run the connecting cables through the JUMO AQUIS 500 CR cable glands.
✱ Locate the measuring lead as shown in the diagram.

Fasten the measuring lead to the screen with the clip (3).

✱ Connect the wires, as shown below.
✱ Connect the pluggable screw terminals of row 1 (1) and row 2 (2) to the

instrument slots.

17

5 Installation

ϑ

Resistance thermometer

SC = shield

Row 1

Row 2

Conductivity sensor

1

2

3

4

1

2

3

4

5

6

7

8

6

7

8

9

10

9

10

11

12

4

L1(L+)

5

6

8

9

11

12

13

15

16

17

N(L-)

11

12

13

14

15

(a)

(b)(c)

(1)

(3)

(2)

Measuring sensor connection

Terminal assignment

Ter m ina l 1 - R D
Ter m ina l 2 - G R
Ter m ina l 3 - P K
Ter m ina l 4 - B L
Ter m ina l 8 - Y E
Ter m ina l 9 - G N
Ter m ina l 10 - BN

Connection of JUMO dTRANS CR 02

(1) Row 1 (a) Option 1 (b) Option 2 (c) Option 3
(2) Row 2 Main input board

(conductivity/resistance/temperature/standard signal)

(3) Row 3 PSU board

(power supply/2× relays)

18

6.1 Notes

6.2 General

6 Calibration

Ageing and contamination (deposits) can cause the cell constant
of the conductivity sensor to change.

The transmitter should therefore be calibrated to the connected
conductivity sensor at regular intervals (subject to the measuring
material and the operating conditions)!

JUMO tecLine CR-4P conductivity sensors are exactly gaged at the factory.
The cell constant of every measuring sensor is documented both on the cell
stem and on the calibration certificate that is also supplied.

This cell constant should be entered directly into the connected transmitter
(e. g. JUMO AQUIS 500 CR).

In combination with the JUMO AQUIS 500 CR, measuring accuracy in the
20 µS/cm to 600 mS/cm range is better than 5 %. To achieve far greater
measuring accuracy, calibrate the transmitter close to its later working point.

To monitor and increase the quality of measurement, the conductivity
measurement chain (conductivity sensor + connecting cable + transmitter)
should be regularly calibrated.

Reference solutions

It is advisable to use one of the following reference solutions for calibration:

• ASTM D 1125, reference solution B: 0.1 N KCl with 12856 µS/cm

• DIN 38404, Part 8, Section 8.3: 0.1 mol/l KCl with 12.95x10
However, any calibration solution in the medium conductivity range can also

be used.

6.3 JUMO AQUIS 500 CR settings

It is essential to comply with the JUMO AQUIS 500 CR operating
instructions (B 202565.0)!

The following settings are the minimum that have to be made:

• Cell type (type of connection): 4-electrode or 4-wire

• Nominal cell constant 1.0 1/cm

• Relative cell constant as % (see sensor nameplate or

certificate)Einstellungen am JUMO dTRANS CR 02

3

µS/cm

19

7 Maintenance/troubleshooting

7.1 Cleaning the conductivity sensor

Conductive conductivity sensors are not authorized for use in
highly adherent, oily or glutinous media - we recommend using our
inductive conductivity measuring instruments here!

After cleaning the conductivity sensor, always rinse it with water!

The conductive conductivity sensor electrodes are in direct
contact with the measurement medium. Regular cleaning must

therefore be performed, relative to the contamination
susceptibility of the measuring material!

Abrasive cleaners have limited suitability! The measurement
electrodes must not be damaged!

• Light contamination can be wiped off with a soft, cleansing tissue, or similar

• Wash off sticky contamination or greasy and oily contamination with a hot

rinsing agent solution and a soft cloth or soft brush; Ethanol can also be
used to clean the sensor, if necessary

• Diluted hydrochloric acid (3 % by weight) can also be used to dissolve the

contamination in the event of calciferous coatings or precipitated metal
hydroxides or metal oxides

• If none of the methods mentioned above remove the contamination, other

solvents, acids or caustic solutions may be used, with the aid of ultrasonic
baths where required;
in this case, it is necessary to ensure that the conductivity sensor
components are resistant to the cleaning agents being used, see section 8
"Technical data"

20

7 Maintenance/troubleshooting

7.2 Troubleshooting

Troubleshooting must always consider all the components of the conductivity
measurement chain! The transmitter and the connecting cable must also be
tested, as well as the conductivity sensor.

Error Possible cause Remedy

Measurement value
is too high or too low

The transmitter does not
display conductivity
(e.g. display shows "0")

Conductivity sensor is
dirty

Broken lead or
incorrect electrical connection

Clean the conductivity
sensor

Check the electrical
connection

Conductivity displayed
by transmitter
is too high or too low

The transmitter does not
display temperature

Display value unstable,
fluctuating

The conductivity sensor can also be tested for short-circuits or internal
contact problems, see section 2 "Description", part "Measuring sensors" and
section 5.2 "Terminal assignment and wiring colors".
A continuity tester (such as the diode tester of a multimeter) is needed for this.

Measuring sensor exposed to
air (not fully immersed)

The measuring sensor electrical
connection is incorrect:
poles are inverted or
"right - left" assignment
is incorrect

Broken lead or
incorrect electrical connection

Malfunction caused by
incorrectly/insufficiently
shielded connecting cable

Malfunction caused by
gas bubbles

Check the measuring sensor
installation location.

Is measuring material present?
Check the electrical connection

Check the electrical connection

Use CR-4P cables
for connection

Check cable connection
and cable routing

Check installation location and
position of the measuring
sensor

21

8 Technical data

Typical measuring range
Cell constant

2

1

1 µS/cm to approx. 600 mS/cm
typically, K = 0.3-0.4cm

-1

Operating temperature -10 to +120 °C, briefly +140 °C (sterilization)
Maximum pressure 16 bar at 25 °C

6 bar at -10°C and +140 °C
Temperature measurement With Pt1000, DIN EN 60751 Class A
Electrical connection

3

M12 connector
Protection IP65
Fitting length 18 mm

38 mm

48 mm (see Dimensions)
Materials in contact with the

measuring medium

• Cell housing

•Electrodes

• Probe pocket

• Seal
Process connection JUMO PEKA

FDA compliant

PEEK

Stainless steel 1.4435 (316L)

Stainless steel 1.4435 (316L)

EPDM (other material on request)

4

(EHEDG-certified)

Available process connection adapters:

• Varivent DN 40-125, stainless steel 1.4435 (316L)

• Clamp DN 25/32/40 and DN 50, stainless steel 1.4435
(316L)

• Aseptic DN 40 and DN 50, stainless steel 1.4435 (316L)

• Aseptic NKS DN 40, stainless steel 1.4435 (316L)

Measuring sensor installation Only possible in conjunction with JUMO PEKA process

connection adapters!

c

Surface quality (roughness) Stainless steel components ≤ 0.6 µm

Plastic components ≤ 0.8 µm

1

Measuring ranges are also dependent on the transmitter being used.

2

The measured cell constant is recorded on the stem of the conductivity sensor.
A cell constant deviation can be adjusted at the transmitter.

3

The CR-4P cable is required for connection (see section 5.3 "CR-4P cable")

4

See 4.2 "JUMO PEKA process connection adapter" and data sheet 409711.

22

JUMO GmbH & Co. KG JUMO Instrument Co. Ltd. JUMO Process Control, Inc.

Street address:
Moritz-Juchheim-Straße 1
36039 Fulda, Germany
Delivery address:
Mackenrodtstraße 14
36039 Fulda, Germany
Postal address:
36035 Fulda, Germany
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.net

JUMO House
Temple Bank, Riverway
Harlow - Essex CM20 2DY, UK
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.co.uk

6733 Myers Road
East Syracuse, NY 13057, USA
Phone: [phone]

1-800-554-5866
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumousa.com