Ceragel CPS71D and CPS71

Endress+Hauser

7

Environment

Ambient temperature range

NOTICE

Risk of damage due to frost

‣ The sensor must not be used if the temperature drops below –15 °C (5 °F).

Storage temperature

0 to 50 °C (32 to 122 °F)

Degree of protection

IP 68:

Memosens plug-in head, (10 m (33 ft) water column, 25 °C (77 °F), 45 days, 1 M KCl)

IP 68:

ESA plug-in head (1 m (3.3 ft) water column, 50 °C (122 °F), 168 h)

IP 67:

GSA plug-in head (with closed connector system)

Process

Process temperature

Electrode version TB, TC:

0 to 140 °C (32 to 284 °F)

0 to 135 °C (32 to 275 °F) for sensors with Ex approval and analog

sensors

Electrode version TP, TU:

0 to 100 °C (32 to 212 °F)

(sterilizable up to 140 °C (284 °F) / 135 °C (275 °F) for sensors with

Ex approval and analog sensors)

Process pressure (absolute)

Electrode version TB, TC:

1 to 14 bar (15 to 203 psi)

Electrode version TU:

1 to 11 bar (15 to 159 psi)

Electrode version TP:

1 to 7 bar (15 to 101 psi)

Minimum 0.8 bar abs. is possible. Be aware of quick KCl consumption.

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.

Pressure-temperature

ratings

A

0

40

80

50

100

150

200

250

275

120

159

300

212

B

C

40

0

20

60

80

100

0

4

6

8

10

2

[°C]

T

[°F]

[psi] p [bar]

12

14

120

135

140

284

D

1

203

11

7

101

15

E

A0025785

 4

Pressure-temperature ratings

A

Version TB, TC

B

Version TB, TC with Ex approval and analog sensors

C

Version TU

D

Version TP

E

Atmospheric pressure

Minimum conductivity

10 μS/cm (at atmospheric pressure, without flow)