Ideal for long-term, unattended applications
Overview
The HMP60-ET, manufactured by Vaisala, is the replacement temperature and RH sensor for older ET stations. The sensor's cable terminates in a connector and is the ideal length for attachment to the ET107 or ET106 ETo Weather Station.
The HMP60-ET measures both temperature and relative humidity and is suitable for long-term, unattended monitoring. The humidity component features a field-replaceable chip, which eliminates downtime typically required for the recalibration process.
For an existing ET station with an R. M. Young radiation shield, use a new HMP60-ET with an old sensor adapter that is in usable condition. (The HMP60-ET does NOT ship with any adapter.) If the old adapter cannot be reused, contact Campbell Scientific for assistance in selecting an appropriate option. It may be necessary to replace the entire radiation shield.
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Detailed Description
The HMP60-ET uses the INTERCAP® capacitive RH chip. This chip is field-replaceable, which eliminates the downtime typically required for the recalibration process.
Specifications
| Supply Voltage | 5 to 28 Vdc (typically powered by datalogger’s 12 V supply) |
| Typical Current Consumption | 1 mA |
| Maximum Current Consumption | 5 mA |
| Filter Description | 0.2 µm Teflon membrane |
| Settling Time | 1 s |
| Sensor Body Material | AISI 316 stainless steel |
| Filter Cap Material | Chrome-coated ABS plastic |
| Classification | IP65 |
| Filter Diameter | 1.2 cm (0.5 in.) |
| Sensor Diameter | 1.2 cm (0.5 in.) |
| Sensor Length | 7.1 cm (2.8 in.) |
| Cable Length | 137.16 cm (54 in.) |
| Weight | 90.72 g (0.2 lb) |
Temperature |
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| Temperature Sensor | 1000 ohm Platinum Resistance Thermometer |
| Measurement Range | -40° to +60°C |
| Accuracy | ±0.6°C |
Relative Humidity |
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| Sensor | Vaisala’s INTERCAP capacitive chip |
| Measurement Range | 0 to 100% RH (non-condensing) |
| Accuracy (0 to 90% RH) |
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| Accuracy (90 to 100% RH) |
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Compatibility
This sensor is compatible with older ET107, T107, and WSPRO2 stations and retired ET stations such as the ET106, T106, and WSPRO.