Product information Wireless data loggers
39
Dry bulb temperature
For the model HD35EDWWBGT
Sensor
Pt100
Measuring range
-40…+100 °C
Resolution (of the instrument)
0.1
°C
Accuracy
1/3 DIN
Stability
0.1
°C/year
Globe-thermometer temperature
For the model HD35EDWWBGT
Sensor
Pt100
Measuring range
-10…+100 °C
Resolution (of the instrument)
0.1
°C
Accuracy
1/3 DIN
Stability
0.1
°C/year
Relative humidity
For HD35ED…TC and HD35ED…TV models
Sensor
Capacitive
Measuring range
0…100 %RH
Resolution (of the instrument)
0.1 %
Accuracy
±
1.8
%RH (0…85
%RH) /
±
2.5
%RH (85…100
%RH) @ T=15…35 °C
±
(2 + 1.5%
measure)% @ T=remaining range
Sensor working temperature
-20…+80
°C standard
-40…+150
°C with probe HP3517
E
…
Response time
T
90
< 20
s (air speed = 2
m/s, without filter)
Stability
1%/year (in the whole temperature and RH range)
Relative humidity
For HD35ED…TVI, HD35ED...B and HD35ED...AB models
Sensor
Capacitive
Measuring range
0…100 %RH
Resolution (of the instrument)
0.1 %
Accuracy
±
2.5
%RH (0..85
%RH) /
±
3.5
%RH (85…100
%RH) @ T=23 °C
Temperature drift
0.05 %RH/K (0…60 °C)
Sensor working temperature
-40…+105 °C (R.H.max=[100-2*(T-80)] @ T=80…105 °C)
Response time
T
63
< 4
s (air speed = 2
m/s, without filter)
Stability
< 1%/year (@ 23 °C and 30…70 %RH)
Soil volumetric water content
Measuring principle
Capacitive
Measuring range
0…60% VWC (Volumetric Water Content)
Resolution (of the instrument)
0.1%
Accuracy
±
3 % between 0 and 50% VWC (standard mineral soil up to 5 mS/cm)
Sensor working temperature
-40…+60 °C
Leaf wetness
Sensor
Capacitive
Measuring range
0…100% of leaf area wetness
Resolution (of the instrument)
0.1%
Accuracy (@ 23 °C)
±
5 %
Sensor working temperature
-30…+60 °C
