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Vaisala INTERCAP® Humidity and Temperature Transmitter Series HMDW80 measure relative humidity and temperature in various building automation applications. Transmitters combine easy installation and reliable operation with a low requirement for maintenance. The versatile HMDW80 series includes transmitters for wall and duct mounting and IP65-classified transmitters for humid areas. It also includes temperature-only transmitters and transmitters with an optional display. Calculated humidity parameters – dew point temperature, wet bulb temperature, and enthalpy – are also available.
Easy Installation
HMDW80 series transmitters are optimized for easy installation. There are no loose parts, screws are retained in the enclosure, all connectors are clearly labeled, and the connectors are within easy reach. The duct mount transmitters are well suited to variable duct sizes and the wall mount transmitters can be installed without the need to make holes in the transmitter enclosure.
Reliable Operation
HMD80 series transmitters require minimal maintenance thanks to their excellent sensor stability and high-quality materials. If necessary, the INTERCAP® sensor can be easily exchanged in the field with minimum downtime.
| Model Number | Type | Output | Special Features | Ingress Protection |
| TMW82 | Wall-mount, T-only | 2-wire, current output | IP30 | |
| TMW83 | Wall-mount, T-only | 3-wire, voltage output | IP30 | |
| HMW82 | Wall-mount, RH+T | 2-wire, current output | IP30 | |
| HMW83 | Wall-mount, RH+T | 3-wire, voltage output | IP30 | |
| HMW88 | Wall-mount, RH+T | 2-wire, current output | Calculated parameters* | IP65 |
| HMW88D | Wall-mount, RH+T | 2-wire, current output | Display, calculated parameters* | IP54 |
| HMW89 | Wall-mount, RH+T | 3-wire, voltage output | Calculated parameters* | IP65 |
| HMW89D | Wall-mount, RH+T | 3-wire, voltage output | Display, calculated parameters* | IP54 |
| TMD82 | Duct-mount, T-only | 2-wire, current output | IP65 | |
| TMD83 | Duct-mount, T-only | 3-wire, voltage output | IP65 | |
| HMD82 | Duct-mount, RH+T | 2-wire, current output | Calculated parameters* | IP65 |
| HMD82D | Duct-mount, RH+T | 2-wire, current output | Display, calculated parameters* | IP54 |
| HMD83 | Duct-mount, RH+T | 3-wire, voltage output | Calculated parameters* | IP65 |
| HMD83D | Duct-mount, RH+T | 3-wire, voltage output | Display, calculated parameters* | IP54 |
*Output parameters for humidity: relative humidity, dew point temperature, wet bulb temperature and enthalpy
Specifications for Models HMW82/83 and TMW82/83
| Performance | |
| Operating temperature range
Operating humidity range |
-5 … +55 °C (+23 … +131 °F)
0 … 100 %RH, non-condensing |
| 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 |
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® |
| 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)
±0.5 °C (±0.9 °F)
±1.0 °C (±1.8 °C)
Digital temperature sensor |
Specifications for Models HMD82/83, TMD82/83 and HMW88/89
| Performance | |
| Operating temperature range
Operating humidity range |
-40 … +60 °C (-40 … +140 °F)
0 … 100 %RH |
| 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 |
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® |
| Temperature | |
| Measurement range
Accuracy At +20 °C (+68 °F) Temperature dependence Temperature sensor |
-40 … +60 °C (-40 … +140 °F)
±0.3 °C (±0.54 °F) ±0.01 °C/ °C Pt1000 RTD Class F0.1 IEC 60751 |
| Calculated Parameters | |
| Measurement range for dew point temperature and wet bulb temperature
Measurement range for enthalpy |
-40 … +60 °C (-40 … +140 °F)
-40 … 460 kJ/kg (-10 … +190 BTU/lb) |
Specifications for Models HMD82/83D and HMW88/89D
| Performance | |
| Operating temperature range
Operating humidity range |
-5 … +60 °C (+23 … +140 °F)
0…100 %RH, non-condensing |
| 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 |
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® |
| Temperature | |
| Measurement range
Operating temperature range of the display Accuracy At +20 °C (+68 °F) Temperature dependence Temperature sensor |
(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 |
| Calculated Parameters | |
| Measurement range for dew point temperature and wet bulb temperature
Measurement range for enthalpy |
-40 … +60 °C (-40 … +140 °F)
-40…460 kJ/kg (-10…+190 BTU/lb) |
