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Accurate, Rugged
Ideal for long-term, unattended applications
weather applications supported water applications supported energy applications supported gas flux & turbulence applications supported infrastructure applications supported soil applications supported

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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Technical 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
Temperature Sensor 1000 ohm Platinum Resistance Thermometer
Measurement Range -40° to +60°C
Accuracy ±0.6°C

Relative Humidity
Sensor Vaisala’s INTERCAP capacitive chip
Measurement Range 0 to 100% RH (non-condensing)
Accuracy (0 to 90% RH)
  • ±5% (-40° to 0°C)
  • ±3% (0° to 40°C)
  • ±5% (40° to 60°C)
Accuracy (90 to 100% RH)
  • ±7% (-40° to 0°C)
  • ±5% (0° to 40°C)
  • ±7% (40° to 60°C)

Compatibility

This sensor is compatible with older ET107, T107, and WSPRO2 stations and retired ET stations such as the ET106, T106, and WSPRO.