Atec Vaisala-HMI41SETB5B - Manual (Page 2)

Technical Data
HMI41 Indicator
Calculated variables dew point temperature, absolute humidity,
wet bulb temperature, mixing ratio
Resolution 0.1 %RH; 0.1 °C/°F
Power supply 4 batteries, type AA (LR 6)
Battery operation time
(alkaline batteries) 72 h continuous use
Auto-off function
Operating temperature
-20 ... +60 °C (-4 ... +140 °F)
Storage temperature -40 ... +70 °C (-40 ... +158 °F)
Display two line LCD
Housing material ABS plastic
Housing classification IP53 (with connectors blocked)
Weight (incl. batteries) 300 g
Maximum measurement error of indicator at +20 °C
humidity ±0.1 %RH
temperature ±0.1 °C (±0.18 °F)
HUMICAP ® is a registered trademark of Vaisala.
HMP42 Probe
Humidity
Measurement range 0 ... 100 %RH
Accuracy (incl. non-linearity, hysteresis and repeatability)
at +20 °C (+68 °F)
0 … 90 %RH ±2 %RH
90 … 100 %RH ±3 %RH
Factory calibration uncertainty (+20 °C / +68 °F)
0 … 15 %RH ±1 %RH
15 … 78 %RH ±1.5 %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 30 s
temperature
Measurement range HMP42 -40 ... +100 °C (-40 ... +212 °F)
Temperature accuracy over measurement range
HMP46 Probe
Humidity
Measurement range 0 ... 100 %RH, non-condensing
Accuracy (incl. non-linearity, hysteresis and repeatibility)
at +20 °C (+68 °F)
0 … 90 %RH ±1 %RH
90 … 100 %RH ±2 %RH
Factory calibration uncertainty (+20 °C / +68 °F)
0 … 15 % RH ±1 %RH
15 … 78 %RH ±1.5 %RH
Temperature Dependence
Typical long-term stability better than 1 %RH per year
Response time (90%)
at +20 °C in still air w/sintered filter
15 s
temperature
Continuous measurement -40 ... +100 °C (-40 ... +212 °F)
Short-term measurement -40 ... +180 °C (-40 ... +356 °F)
Temperature accuracy at +20 °C (+68 °F) ±0.2 °C (±0.36 °F)
Temperature accuracy over the measurement range
Temperature sensor Pt100 RTD Class F0.1 IEC 60751
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
∆°C
-40 -20 0 20 40 60 80 100
T/°C
Temperature sensor Pt100 RTD Class F0.3 IEC 60751
-40 0 40 160 80 120
2
1
0
-1
-2
-20 20 60 100 140 180
1.5
0.5
-0.5
-1.5
error %RH
T/°C
for temporary
use only
°C
-40 -20 0 20 40 60 80 100 120 140 160
T/°C
0.6
0.4
0.2
-0.2
-0.4
-0.6
0
180