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2 hmp41and hmp45 probes, 1 relative humidity, 2 temperature – Vaisala HMP46 User Manual

Page 46: 3 general, Hmp41and hmp45 probes

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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

This manual is related to the following products: