HMP50-L

Temperature and Relative Humidity Sensor
Automated

HMP50-L

End of lifeConfigurable

Temperature and Relative Humidity Sensor

Model:
HMP50-L
Item Number:
HMP50-L
Warranty:
1 year
Lead time:
21 days
Compliance:
requires 41303-5A radiation shield

Overview

The HMP50 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. The HMP50 is compatible with all Campbell Scientific data loggers.

Technical Description

The HMP50 measures temperature with a 1000 Ohm platinum resistance thermometer (PRT) and relative humidity (RH) with a 50Y Intercap capacitive chip. The chip is field-replaceable, which eliminates the downtime typically required for the recalibration process. This temperature and RH sensor is compatible with all Campbell Scientific data loggers.

The HMP50 should be housed in a solar radiation shield—typically the 41303-5A. The 41303-5A 6-plate naturally aspirated shield attaches to a mast, crossarm, or tower leg.

Benefits

  • Field-replaceable humidity chip eliminates recalibration down time
  • Can be mounted to a tower/tripod mast or crossarm

Specifications

Supply Voltage
7 to 28 Vdc

(typically powered by data logger’s 12 V supply)

Current Consumption
2 mA

(typical)

Housing Material
Chrome-coated aluminum and chrome-coated ABS plastic
Operating Temperature Range
-40° to +60°C
Diameter
1.2 cm

(0.47 in.)

Length
7.1 cm

(2.8 in.)

Weight
0.05 kg (0.1 lb) with 1.83-m (6-ft) cable

Relative Humidity

Sensor
Vaisala’s INTERCAP capacitive chip
Measurement Range
0 to 98% RH

(non-condensing)

Accuracy
±3%

(0% to 90% range)

Accuracy
±5%

(90% to 98% range)

Temperature Dependence
See graph in product brochure.

Temperature

Temperature Sensor
1000 ohm Platinum Resistance Thermometer
Measurement Range
-40° to +60°C
Accuracy
See graph in product brochure.

Related Resources

Connect With Us

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Phone Numbers
General: (435) 227-9000
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Corporate Address
815 W 1800 N
Logan, UT 84321
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Email Address
sales@campbellsci.com

As a trusted leader in measurement systems for more than 50 years, our top priority at Campbell Scientific has always been to provide the most accurate, reliable data for research and industry.