Vaisala HMP46 - Manual (Page 46)

HMI41 AND PROBES
Operating Manual
M210316EN-A
42
11.2 HMP41and HMP45 probes
11.2.1 Relative humidity
Measurement range 0...100 %RH non-condensing
Accuracy (at +20 °C)
when calibrated against
salt solutions (ASTM E104-85):
±
2 %RH (0...90 %RH)
±
3 %RH (90...100 %RH)
Temperature dependence
of electronics
±0.05 %RH/
°
C
Typical long-term stability better than 1 %RH per year
Response time (90%) at 20
°
C
in still air with sintered filter 15 s
Humidity sensor HUMICAP ® 180
11.2.2 Temperature
Measurement range
(for which accuracy is specified):
-20...+60
°
C
Temperature sensor Pt 1000 (IEC 751 1/3 Class B)
Accuracy:
°C
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-20 0 20 40 60
°C
-10 10 30 50
11.2.3 General
Typical ranges of calculated variables
dewpoint temperature -40...+60
°
C
absolute humidity 0...160 g/m
3
wet bulb temperature 0...+60
°
C
mixing ratio 0...160 g/kg d.a.
Cable length (HMP45) 1500 mm; extended spiral cable
Connector type (HMP45) modular connector
Operating temperature range -40...+60
°
C
Storage temperature range -40...+70
°
C
Housing material ABS plastic
Housing classification (electronics) IP65 (NEMA 4)
Sensor protection plastic grid, part no. HM46717
Weight:
HMP41
30 g
HMP45 160 g