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CS225 Temperature String

5.2 CS225 Temperature String

Operating Range: -55q to +85qC

Accuracy: Typical - r2qC over -40q to +85qC,

Worst-case - rqC over -40q to +85qC;

±0.5qC over -55qWRqC

(includes lifetime drift of sensor)

Resolution: 0.0078qC

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: Quiescent: # sensors * 1.0 mA (max)

Active (during SDI-12 communications): 20 mA +

(# sensors * 1.0 mA)

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)

The furthest temperature point from the datalogger (or the

temperature point at the end of the string) is addressed starting at

‘1’. Each temperature point going up the string towards the

datalogger changes by one address number/letter.

NOTE

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 24 25

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Campbell CS225 Bedienerhandbuch Seite 8