Inputs and outputs

Current output models (2-wire)
     Outputs 
     Loop resistance
     Supply voltage 
      
Voltage output models (3-wire)
     Outputs 
     Loop resistance
     Supply voltage

4 ... 20 mA, loop powered
0 ... 600 Ω
20 ... 28VDC at 600 Ω load
10 ... 28VDC at 0 Ω load

0...10 V
10 kΩ min
18 ... 35 VDC
24 VAC ±20 % 50/60 Hz

Specifications for Models HMW82/83 and TMW82/83

Operating temperature range
Operating humidity range
RELATIVE HUMIDITY
Measurement range
Accuracy
     Temperature range
     0 ... 70 %RH
     70 ... 100 %RH
     Temperature range

     0 ...100 %RH
Stability in typical HVAC applications
Humidity sensor
TEMPERATURE
Measurement range
Accuracy
+10 ... +30 °C (+50 °F ... +86 °F)
-5 ... +10 °C, +30 ... +55 °C
(+23 ... +50 °F, +86 ... +131 °F)
Temperature sensor

-5 ... +55 °C (+23 ... +131 °F)
0 ... 100 %RH, non-condensing

0 ... 100 %RH

+10 ... +30 °C (+50 ... +86 °F)
±3 %RH
±5 %RH
-5 ... +10 °C, +30 ... + 55 °C 
(+23 ... +50 °F, +86 ... +131 °F)
±7 %RH
±2 %RH over 2 years
Vaisala INTERCAP®

-5 ... +55 °C (+23 ... +131 °F)

±0.5 °C (±0.9 °F)

±1.0 °C (±1.8 °F)
Digital temperature sensor

Specifications for Models HMD82/83, TMD82/83, HMW88/89 and HMS82/83

Operating temperature range
Operating humidity range
RELATIVE HUMIDITY
Measurement range
Accuracy
     Temperature range
     0 ... 90 %RH
     90 ... 100 %RH
     Temperature range
     
     0 ... 90 %RH
     90 ... 100 %RH
     Temperature range
     0 ... 100 %RH
Stability in typical HVAC applications
Humidity sensor
TEMPERATURE
Measurement range
Accuracy
     At +20 °C (+68 °F)
Temperature dependence
Temperature sensor

CALCULATED PARAMETERS
Measurement range for 
dew point temperature and wet bulb temperature
Measurement range for enthalpy

-40 ... +60 °C (-40 ... +140 °F)
0 ... 100 %RH



+10 ... +30 °C (+50 ... +86 °F)
±3 %RH
±5 %RH
-20 ... +10° C, +30 ... +60 °C
(-4 ... +50 °F, +86 ... +140 °F)
±5 %RH
±7 %RH
-40 ... -20 °C (-40 ... -4 °F)
±7 %RH
±2 %RH over 2 years
Vaisala INTERCAP®

-40 ... +60 °C (-40 ... +140 °F)

±0.3 °C (±0.54 °F)
±0.01 °C/ °C
Pt1000 RTD Class F0.1 IEC 60751

-40 ... +60 °C (-40 ... +140 °F)


-40 ... 460 kJ/kg (-10 ... +190 BTU/lb)

Specifications for Models HMD82/83D and HMW88/89D

Operating temperature range
Operating humidity range
RELATIVE HUMIDITY
Measurement range
Accuracy
     Temperature range
     0 ... 90 %RH
     90 ... 100 %RH
     Temperature range

     0 ... 90 %RH
     90 ... 100 %RH
Stability in typical HVAC applications
Humidity sensor
TEMPERATURE
Measurement range

Operating temperature range of the display
Accuracy
     At +20 °C (+68 °F)
Temperature dependence
Temperature sensor

CALCULATED PARAMETERS
Measurement range for 
dew point temperature and wet bulb temperature
Measurement range for enthalpy

-5 ... +60 °C (+23 ... +140 °F)
0 ... 100 %RH, non-condensing

0 ... 100 %RH

+10 ... +30 °C (+50 ... +86 °F)
±3 %RH
±5 %RH
-5 ... +10 °C, +30 ... +60 °C
(+23 ... +50 °F, +86 ... +140 °F)
±5 %RH
±7 %RH±2 %
RH over 2 years
Vaisala INTERCAP®

(Analog output scaling)
-40 ... +60 °C (-40 ... +140 °F)
+5 ... +60 °C (+23 ... +140 °F)

±0.3 °C (±0.54 °F)
±0.01 °C/ °C
Pt1000 RTD Class F0.1 IEC 60751

-40 ... +60 °C (-40 ... +140 °F)


-40...460 kJ/kg (-10...+190 BTU/lb)