Campbell Scientific HMP155A HMP155A Temperature and Relative Humidity Probe - Page 18

Temperature Sensor, Inputs and Outputs

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HMP155ATemperature and Relative Humidity Probe *HMP155ACBL1 Cable provided by Campbell Scientific 6=no connection 7=VCC (red) 8=GND (black) - =SHIELD (clear) *Note: HMP155ACBL2 for RS-485 is described in Appendix C. Filter: Housing material: Housing classification: Weight: Sintered PTFE PC IP66 86 g (3 oz) Inputs and Outputs Voltage outputs: Average current consumption: Operating voltage: Settling time at power-up: 0 to 1 V

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HMP155ATemperature and Relative Humidity Probe
*HMP155ACBL1 Cable provided by Campbell Scientific
6=no connection
7=V
CC
(red)
8=GND (black)
- =SHIELD (clear)
*Note: HMP155ACBL2 for RS-485 is described in Appendix C.
Filter:
Sintered PTFE
Housing material:
PC
Housing classification:
IP66
Weight:
86 g (3 oz)
Inputs and Outputs
Voltage outputs:
0 to 1 V
Average current consumption:
<3 mA (analog output mode)
Operating voltage:
7 to 28 Vdc
Settling time at power-up:
2 s
6.1
Temperature Sensor
Measurement range:
–80° to +60°C –112° to +140ºF)
Accuracy with voltage output
at –80° to +20°C:
±(0.226 – 0.0028 x temperature) °C
at +20° to +60°C:
±(0.055 + 0.0057 x temperature) °C
See graph below
0804-032
Temperature sensor:
Pt 100 RTD 1/3 Class B IEC 751
Response time (63 %) for additional
temperature probe in 3 m/s air flow:
63% <20 s
90% <35 s
10