HMP45C-L
Temperature and RH Probe
The HMP45C is a rugged, accurate temperature/RH probe manufactured by Vaisala Inc. The probe uses a HUMICAP capacitive polymer H chip to measure relative humidity over the 0 to 100% RH range. A PRT measures temperature over the -40° to +60°C range.
To reduce the current drain, power can be supplied to the HMP45C only during measurement when the sensor is connected to the datalogger's switched 12 V terminal. Dataloggers that do not have a switched 12 V terminal, such as the CR510 or CR7, can use the SW12V Switched 12 V device to switch power to the sensor only during measurement.Yearly HMP45C recalibrations are recommended.
Features
- Temperature measurement uses PRT
- RH measurement uses capacitive RH chip
- 41003-5 radiation shield recommended when exposed to sunlight
- Based on Vaisala HMP-series sensors
- 13367 Sensor Head available to facilitate recalibration
- A HMP45C housed in a 41003-5 can be mounted to a mast or crossarm
Specifications
- Accuracy: ±2% over 10-90% RH; ±3% over 90-100% RH
- Weight: 0.6 lbs (0.27 kg)
- Sensor length: 12" (30.5 cm)
- Sensor diameter: 0.8" (2.0 cm)
- Operating Temperature Range: -40° to +60°C
