Specifications

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24
HMP 44 Probe
Relative humidity
Measurement range 0...100 %RH
Accuracy
0...90 %RH ±2 %RH
90...100 %RH ±3 %RH
Typical long-term stability in air better than
1 %RH/year
Response time (90%) at +68°F (+20
0
C) in still air 15s
Typical response time when the concrete
and the probe are in the same temperature
(stabilized hole) 30 min
Humidity sensor HUMICAP
®
180
Temperature
Measurement range -4+140°F (-20...+60 °C)
Accuracy at +68°F (+20
0
C) ±0.7°F (±0.4 °C)
Temperature sensor Pt 1000 IEC 751 1/3
Class B
HMI 41 Indicator
Maximum error caused by the indicator at +68°F (+20 °C)
humidity ±0.1 %RH
temperature ±0.18°F (±0.1 °C)
Calculated quantities dewpoint temperature,
absolute humidity,
wet bulb temperature,
mixing ratio
Resolution 0.1 %RH/0.1°F (0.1 °C)
Power supply 4 batteries, type IEC LR 6
Battery operation time
(alkaline batteries) 72 h continuous use
Operating temperature range -4+140°F (-20...+60 °C)
Operating humidity range 0...100 %RH
non-condensing
Storage temperature rang -40+158°F (-40...+70 °C)
Display two line LCD
Housing material ABS plastic
Housing classification IP 53
(with connectors blocked)
Weight (incl. batteries) 300 g
Meet EMC standards EN50081-1 and EN50082-2
Specifications subject to change without prior notice.
General
Cable length 0.3m
Operating temperature range of electronics -4+140°F
(-40...+60 °C)
Housing material ABS plastic
Housing classification NEMA 4 (IP 65)
Sensor protection membrane filter 17039HM
Sensor diameter Æ12 mm
Bore hole diameter 16 mm
Measurement depth min. 30 mm
max. 90 mm
Other probes to be used with the HMI indicator for the
measurement of humidity in materials:
HMP 42 23.5 cm probe, diameter 4mm
HMP44L as HMP44 but with a 2.7 meter cable
HMP46 32 cm tube of stainless steel, diameter 12 mm
Connector for the HMI 41 indicator
Protective cover
Plastic sleeve is
sealed with a
rubber plug.
Plastic sleeve
The humidity can be
measured at the desired
depth (min. 30 mm,
max. 90mm)
The tip of the probe is
in contact with the air
that is in equilibrium
with the concrete.
HMP 44 probe
Installation of the HM 44 set.
TECHNICAL DATA - HM 44 SET
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