Environment; Process - Endress+Hauser CCS50D Operating Instructions Manual

Technical data
12.2.7 Long-term drift
< 1 % per month (mean value, determined while operating at varying concentrations and
under reference conditions)
12.2.8 Polarization time
Initial commissioning
Recommissioning
12.2.9 Operating time of the electrolyte
at maximum concentration and 55 °C
at 50 % of measuring range and 20 °C
at 10 % of measuring range and 20 °C
12.3

Environment

12.3.1 Ambient temperature range
-20 to 60 °C (-4 to 140 °F)
12.3.2 Storage temperature
With electrolyte
Without electrolyte
12.3.3 Degree of protection
IP68 (1.8 m (5.91 ft)) water column over 7 days at 20 °C (68 °F)
12.4

Process

12.4.1 Process temperature
0 to 55 °C (32 to 130 °F), non-freezing
12.4.2 Process pressure
The inlet pressure depends on the specific fitting and installation.
The measurement can take place with a free outlet.
The medium pressure directly upstream from the sensor membrane must not exceed
1 bar (14.5 psi) abs.
‣
In terms of sensor condition and performance, it is essential that the flow velocity limits
specified in the following table be observed.
44
60 min
30 min
Longterm storage
0 to 35 °C (32 to 95 °F) (non-freezing)
Storage up to max 48 h
35 to 50 °C (95 to 122 °F)
–20 to 60 °C (–4 to 140 °F)
CCS50D
60 days
1 year
2 years
Endress+Hauser