Campbell Scientific CS125 Present Weather Sensor - Manual (Page 13)

User Guide
5
Supported formats

RS232 (Full duplex only), default

RS485 (Half duplex)

8 bit data bytes

1 stop bit

Parity checking is not supported as most communication protocols used by
the CS125 have built in checksums as well as checks that communications
have been understood
5. Environmental specifications
Minimum
Value
Nominal
Value
Maximum
Value
Sensor temperature ranges
Operating temperature -25°C - +60°C
Extended operating temperature -40°C - +70°C
(1)
Storage temperature -40°C - +85°C
Sensor humidity ranges
Operating humidity range 0% - 100%
Sensor heater thresholds
Dew heater Turn On - <35°C -
Dew heater Turn Off - >40°C -
Hood heater Turn On - <5°C -
Hood heater Turn Off - >15°C -
(1) Extended temperature ranges are only guaranteed if the sensor has been tested by Campbell
Scientific and verified within this temperature range. Some degradation of absolute accuracy can be
expected at the extremes of the extended ranges.
6. Mechanical specifications
Main body including base mount
Height: 447 mm
Width: 640 mm
Depth: 245 mm
Sensor weight: 3 Kg
Sensor mounting: Bracket mounts on a vertical pole 32-52.5 mm diameter. The
mounting bracket has cut-outs for band clamps for larger
diameter masts.
Shipping weight: 6 Kg (including packing box)
7. Installation procedure
The CS125 measures environmental variables and is designed to be located in
harsh weather conditions. However there are a few considerations to take into
account if accurate and representative data from a site are to be obtained.