Ceraliquid CPS41D and CPS41

Endress+Hauser

7

Process

Process temperature

Version AB, AC:

-15 to 80 °C (5 to 176 °F)

Version BB, BC:

0 to 135 °C (32 to 275 °F)

Process pressure (absolute)

1 to 11 bar (15 to 160 psi) if counterpressure applied via separate KCl vessel

LCAUTION

Pressurization of sensor due to prolonged use under increased process pressure

Risk of injury from glass breakage

‣ Avoid excessive heating of such sensors if using them under reduced process pressure or under

atmospheric pressure.

‣ When handling such sensors, wear protective goggles and suitable gloves.

Minimum conductivity

AB, BB version

(1 diaphragm)

Min. 5 μS/cm (flow reduced to minimum when KCl electrolyte is

discharged)

AC, BC version

(3 diaphragms)

Min. 0.1 μS/cm (flow assembly made of stainless steel with

grounding; flow is stable and reduced to minimum when KCl

electrolyte is discharged)

pH range

Version AB, AC:

1 to 12 pH

Version BB, BC:

0 to 14 pH

NOTICE

Risk of damage to electrode

‣ Never use the electrode outside of the listed specifications!

KCl consumption

1

2

3

B

A

0

20

40

60

80

100

0

4

8

12

16

32

68

104

140

176

212

C

A0028481

 3

KCl consumption as a function of temperature

A

Consumption (ml/day)

B

Temperature (°C)

C

Temperature (°F)

1

800 mbar (11.6 psi) over pressure

2

400 mbar (5.8 psi) over pressure

3

100 mbar (1.5 psi) over pressure

1

2

3

A

B

0

4

8

12

16

200

100

600

800

1000

1.5 2.9

5.8

8.7

11.6

14.5

C

400

A0028482

 4

KCl consumption as a function of process

pressure

A

Consumption (ml/day)

B

Over pressure relative to process (mbar)

C

Over pressure relative to process (psi)

1

Fluid temperature 80 °C (176 °F)

2

Fluid temperature 50 ° C (122 °F)

3

Fluid temperature 20 ° C (68 °F)

The specified, approximated KCl consumption is based on electrodes with a single diaphragm.

For electrodes with three diaphragms, KCl consumption is proportionately higher.