CS225 Temperature String
4
5.2 CS225 Temperature String
Operating Range:
-55
to +85
C
Accuracy:
Typical -
2
C over -40
to +85
C,
Worst-case -
C over -55
to +85
C,
(includes lifetime drift of sensor)
Resolution:
0.0078
C
Measurement Update
Interval:
1 second (automatic), occurs in quiescent mode
Warm-up Time:
10 seconds
Maximum Sensors
per String:
36 sensors
Maximum Pressure:
50 PSI
Supply Voltage:
9 to 28 Vdc
Current Consumption:
1.0 mA quiescent (max), 20 mA + (# sensors * 1.0
mA) during active SDI-12 communications
Temperature Point
Diameter:
2.22 cm (0.875 in)
Maximum Cable
Length:
152 m (500 ft), individual CS225 and datalogger
SDI-12 terminal maximum
Minimum Sensor
Spacing:
15cm (5.9 in)
6. Installation
6.1 Siting
The CS225 is meant to be installed in the required orientation within the
medium that is to be monitored. In order to make the most representative
measurement it is important that consistent contact be made between the
Temperature String and the medium. The location of the Temperature String
should be representative of the intended application.
The CS225 consists of two distinct segments, the lead and the sensor array.
The lead length accounts for the length of cable required to reach between the
datalogger and the sensor array. The sensor array length accounts for the
length of cable required to incorporate all temperature sensors in their
necessary configuration.
The installation position of the string and its measurement points are
referenced from the first sensor position at the end of the sensor array. This
Содержание CS225
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