Specifications

100 Commerce Way, Woburn, MA 01801
TEL: 1-888-VAISALA (824-7252) FAX: [phone]
E-MAIL: [e-mail] Access catalog on-line at: www.vaisala.com/inc/ssdcat
20
Ø 18.5
Ø 21
237
118
13
106
30
38
318
HMP 41, HMP 42, and HMP 45 Probes
Humidity
Measurement range 0...100 %RH non condensing
Accuracy at +68°F (+20
0
C)
when calibrated against
salt solutions (ASTM E014-85) ±2 %RH (0...90%RH)
±3 %RH (90...100%RH)
Temperature dependence of
measurement ±0.03%RH/°F (±0.05 %RH/°C)
Typical long-term stability better than 1 %RH per year
Sensor HMP 41 & 45 HUMICAP
®
180
Sensor HMP 42 HUMICAP
®
MINI
Response time (90%) at +68°F (+20
0
C)
in still air (HMP 41, 45) 15s
(HMP 42) 30s
Temperature
Measurement range Sensor head
HMP 41 and 45 -4...+140°F (-20...+60 °C)
HMP 42 -40...+212°F (-40...+100 °C)
Sensor (HMP 41 & 45) PT 1000 IEC 751 1/3 class B
(HMP 42) PT 100 IEC 751 class B
Accuracy (including ±0.27°F (±0.15 °C) calibration accuracy)
General
Typical ranges of calculated variables
dewpoint temperature -40°F+140°F (40...+60°C)
absolute humidity 0...160 g/m
3
wet bulb temperature 32140°F (0...+60°C)
mixing ratio 0...160 g/Kg d.a.
Cable length (HMP 42 & 45) 1500 mm; extended spiral
cable
Operating temperature range (41 & 45) -40...+140°F
(-40...+60 °C)
(HMP 42) -4...+140°F (-20...+60 °C)
Housing material ABS plastic
Housing classification
electronics NEMA 4 (IP 65)
Sensor protection*
Weight
HMP 41 30 g
HMP 45 160 g
HMP 42 200 g
Specifications subject to change without further notice.
HUMICAP
®
is a registered trademark of Vaisala.
20
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-20 0 40 60 •C
•C
TECHNICAL DATA - HMP 41, HMP 42 AND HMP 45 PROBES
HMP 42
HMP 41 and HMP 45
HMP 41
HMP 45
HMP 42
* Sensor Protection
HMP 41 & 45 pl. grid HM46717
option membrane filter 2782HM
HMP42 steel grid 19867HM
membrane tube set (5pcs) 19858HM
BACK to
Table of
Contents
To INDEX
HMP 41, 42,
45 Price List