Services Available | |
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Repair | No |
Calibration | Yes |
Free Support | No |
The HMP45C-LQ is a rugged, accurate temperature and relative humidity probe. The sensor measures relative humidity over the 0 to 100% RH range and temperature over the -40° to +60°C range.
Read MoreFor this version of the HMP45C, the cable terminates in a military style connector and has a user-specified lead length. The connector attaches to the RAWS-P enclosure, which mounts to a CM6/CM10 tripod, CM110-series tripod, or UT-series tower. 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.
Supply Voltage | 12 Vdc nominal (typically powered by datalogger) |
Current Consumption | ≤ 4 mA (active) |
Temperature |
|
Temperature Sensor | 1000 ohm Platinum Resistance Thermometer |
Measurement Range | -39.2° to +60°C |
Output Signal Range | 0.008 to 1.0 V |
Accuracy | See graph in HMP45C product brochure. |
Relative Humidity |
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Sensor | Vaisala’s HUMICAP H-chip |
Measurement Range | 0.8% to 100% RH (non-condensing) |
Output Signal Range | 0.008 to 1 Vdc |
Accuracy at 20°C |
|
Temperature Dependence | ±0.05% RH/°C |
Long-Term Stability | Typically, better than 1% RH per year |
Response Time | 15 seconds with membrane filter (at 20°C, 90% response) |
Settling Time | 500 milliseconds |
The sensor cable terminates in a military style connector and a user-specified lead length. The connector attaches to the RAWS-P enclosure.
The HMP45C-LQ should be housed in a 41003-5 10-plate naturally-aspirated solar radiation shield. This radiation shield mounts to a tripod or tower mast, crossarm, or user-supplied pole.
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