Vaisala HMDW80 Humidity & Temperature Transmitter

Features

  • Reliable transmitters for basic HVAC humidity measurements
  • ±3.0 %RH accuracy
  • Full 0 … 100 %RH measurement range
  • Optimized for easy installation and low maintenance
  • User exchangeable INTERCAP sensor for easy field replacement
  • UL-V0 flammability rating
  • Output parameters: relative humidity and temperature with optional dew point temperature, wet bulb temperature and enthalpy parameters
Enquiry
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Dpstar is a leader in environmental and industrial measurements. Curiosity and innovation are core values in our company. Our extensive knowledge and expertise are materialized in our selection of innovative products. Accurate measurements are essential for healthy indoor air and improving the energy efficiency of buildings. The unique, cutting-edge Dpstar sensor technologies are manifested throughout our versatile range of products. The transmitters have an exceptionally long lifetime and excellent measurement stability, thus being practically maintenance-free. These are among the many reasons why Dpstar’s products are a sustainable choice.

Vaisala HMDW80 series offers versatile transmitters for wall and duct mounting, used to measure humidity and temperature in different building automation settings. These transmitters are easy to install, operate reliably, and require minimal maintenance. With Vaisala HMDW80 series, you can easily configure wet-bulb, enthalpy, and dew point outputs in ducts instead of just relative humidity. There are IP65-rated transmitters for humid areas and sensors with a radiation shield for outdoor use. Additionally, the series includes temperature-only transmitters and transmitters with an optional display. Plus, instruments purchased in 2021 and later come with a 5-year warranty.

The duct mount transmitters fit well in different duct sizes, outdoor transmitters can be directly mounted on walls or poles without extra accessories, and wall mount transmitters can be installed without drilling holes in the enclosure.

The following models are available:

MW82, HMW82, HMW82P100, HMW83, TMW88, HMW88, HMW88D, HMW89, HMW89D, TMD82, HMD82, HMD82D, HMD83, HMD83D, HMS82, HMS82C, HMS83, HMS83C.

Dimensions

HMW82/83 RH+T and TMW82 T-only transmitters for wall-mounting.

HMS82/83 RH+T and TMS82 T-only transmitters for outdoor measurements.

HMW88/89(D) RH+T and TMW88 T-only transmitters for measurements in wet areas.

HMD82/83(D) RH+T and TMD82 T-only transmitters for ducts.

Typical installation locations

  • Ventilation ducts
  • Walls
  • Wash-down areas
  • Outdoor locations

The versatile Vaisala HMDW80 series includes transmitters for wall and duct mounting, IP65-classified transmitters for humid areas, and transmitters with a radiation shield for outdoor use. 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.

Benefits

  • Easy Installation
    Vaisala HMDW80 series transmitters are designed for simple installation. There come fully assembled with no loose parts, and all screws are kept in the enclosure. Duct mount transmitters fit various duct sizes, outdoor transmitters can be mounted directly onto walls or poles without extra accessories, and wall mount transmitters can be installed without drilling holes in the enclosure.
  • Reliable Operation
    Vaisala HMDW80 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.

Specification

Model number Type Output Special features IP rating
TMW82 Wall-mount, T-only 2-wire, current output IP30
HMW82 Wall-mount, RH+T 2-wire, current output IP30
HMW82P100 Wall mount, RH+T 2-wire, current output Additional Pt100 sensor IP30
HMW83 Wall-mount, RH+T 3-wire, voltage output IP30
TMW88 Wall-mount, T-only 2-wire, current output IP65
HMW88 Wall-mount, RH+T 2-wire, current output Calculated parameters(1) IP65
HMW88D Wall-mount, RH+T 2-wire, current output Display, calculated parameters(1) IP65
HMW89 Wall-mount, RH+T 3-wire, voltage output Calculated parameters(1) IP65
HMW89D Wall-mount, RH+T 3-wire, voltage output Display, calculated parameters(1) IP65
TMD82 Duct-mount, T-only 2-wire, current output IP65
HMD82 Duct-mount, RH+T 2-wire, current output Calculated parameters(1) IP65
HMD82D Duct-mount, RH+T 2-wire, current output Display, calculated parameters(1) IP65
HMD83 Duct-mount, RH+T 3-wire, voltage output Calculated parameters(1) IP65
HMD83D Duct-mount, RH+T 3-wire, voltage output Display, calculated parameters(1) IP65
HMS82 Outdoor, RH+T 2-wire, current output Radiation shield, calculated parameters(1) IP65
HMS82C Outdoor, RH+T 2-wire, current output HMS82 with NPT ½” conduit
fitting(1)
IP65
HMS83 Outdoor, RH+T 3-wire, voltage output Radiation shield, calculated
parameters(1)
IP65
HMS83C Outdoor, RH+T 3-wire, voltage output HMS83 with NPT ½” conduit
fitting(1)
IP65
TMS82 Outdoor, T-only 2-wire, current output Radiation shield IP65
(1) Output parameters for humidity: relative humidity, dew point temperature, wet bulb temperature, and enthalpy.
Measurement performance, models HMW82/83 and TMW82
Relative Humidity
Measurement range 0 … 100 %RH
Accuracy in temperature range
+10 … +30 °C (+50 … +86 °F)
±3 %RH (0 … 70 %RH)
±5 %RH (70 … 100 %RH)
Accuracy in temperature range
−5 … +10 °C, +30 … +55 °C
(+23 … +50 °F, +86 … +131 °F)
±7 %RH (0 … 100 %RH)
Stability in typical HVAC applications ±2 %RH over 2 years
Humidity sensor Vaisala INTERCAP
Temperature
Measurement range −5 … +55 °C (+23 … +131 °F)
Accuracy at +10 … +30 °C (+50
°F … +86 °F)
±0.5 °C (±0.9 °F)
Accuracy at −5 … +10 °C, +30 … +55 °C
(+23 … +50 °F, +86 … +131 °F)
±1.0 °C (±1.8 °F)
Temperature sensor Digital temperature sensor
Temperature sensor HMW82P100 Temperature sensor HMW82P100
Measurement performance, models HMD82/83, TMD82, HMW88/89, TMW88, HMS82/83, and TMS82
Relative Humidity
Measurement range 0 … 100 %RH
Accuracy in temperature range
+10 … +30 °C (+50 … +86 °F)
±3 %RH (0 … 90 %RH)
±5 %RH (90 … 100 %RH)
Accuracy in temperature range
−20 … +10 °C, +30 … +60 °C
(−4 … +50 °F, +86 … +140 °F)
±5 %RH (0 … 90 %RH)
±7 %RH (90 … 100 %RH)
Accuracy in temperature range
−40 … −20 °C (−40 … −4 °F)
±7 %RH (0 … 100 %RH)
Stability in typical HVAC applications  ±2 %RH over 2 years
Humidity sensor Vaisala INTERCAP
Temperature
Measurement range −40 … +60 °C (−40 … +140 °F)
Accuracy at +20 °C (+68 °F) ±0.3 °C (±0.54 °F)
Temperature dependence ±0.01 °C/ °C
Temperature sensor Pt1000 RTD Class F0.1 IEC 60751
Calculated Parameters
Measurement range for dew point temperature and wet bulb temperature −40 … +60 °C (−40 … +140 °F)
Measurement range for enthalpy −40 … 460 kJ/kg (−10 … +190 BTU/lb)
Operating Environment
Maximum wind/flow speed 30 m/s
Storage temperature −40 … +60 °C (−40 … +140 °F)
EMC compliance EN61326-1, Industrial Environment
Operating Temperature
HMW82/83 and TMW82 −5 … +55 °C (+23 … +131 °F)
HMD82/83, TMD82, HMW88/89, TMW88, HMS82/83, and TMS82 −40 … +60 °C (−40 … +140 °F)
HMD82/83D and HMW88/89D −5 … +60 °C (+23 … +140 °F)
Operating Humidity
HMD82/83, TMD82, HMW88/89, TMW88, HMS82/83, and TMS82 0 … 100 %RH
HMW82/83, TMW82, HMD82/83D and HMW88/89D 0 … 100 %RH, non-condensing
Measurement performance, models HMD82/83D and HMW88/89D
Relative Humidity
Measurement range 0 … 100 %RH
Accuracy in temperature range +10 … +30 °C (+50 … +86 °F) ±3 %RH (0 … 90 %RH)
±5 %RH (90 … 100 %RH)
Accuracy in temperature range
−5 … +10 °C, +30 … +60 °C
(+23 … +50 °F, +86 … +140 °F)
±5 %RH (0 … 90 %RH)
±7 %RH (90 … 100 %RH)
Stability in typical HVAC applications ±2 %RH over 2 years
Humidity sensor Vaisala INTERCAP
Temperature
Measurement range (Analog output scaling) −40 … +60 °C (−40 … +140 °F)
Accuracy at +20 °C (+68 °F) ±0.3 °C (±0.54 °F)
Temperature dependence ±0.01 °C/ °C
Temperature sensor Pt1000 RTD Class F0.1 IEC 60751
Calculated Parameters
Measurement range for dew point temperature and wet bulb temperature −40 … +60 °C (−40 … +140 °F)
Measurement range for enthalpy −40 … 460 kJ/kg (−10 … +190 BTU/lb)
Inputs and outputs
Current Output Models (2-wire)
Outputs 4 … 20 mA, loop-powered
Loop resistance 0 … 600 Ω
Supply voltage 20 … 28 VDC at 600 Ω load
10 … 28 VDC at 0 Ω load
Voltage Output Models (3-wire)
Outputs 0 … 10 V
Load resistance 10 kΩ min
Supply voltage 18 … 35 VDC
24 VAC ±20 % 50/60 Hz
Mechanical Specifications
Max wire size 1.5 mm2 (AWG 16)
Standard housing color White (RAL9003)
Housing Material
HMW82/83, TMW82 ABS/PC (UL-V0 approved)
HMW88/89(D), HMD82/83(D), TMW88, TMD82, HMS82/83, TMS82 PC + 10 %GF (UL-V0 approved)
Spare Parts & Accessories
INTERCAP sensor 15778HM
10 pcs of INTERCAP sensors INTERCAPSET-10PCS
Conduit fitting + O-ring (M16×1.5 / NPT ½”) 210675SP
Conduit fitting + O-ring (M16×1.5 / PG9, RE-MS) 210674SP
Fastening set HMS80 237805
Porous PTFE filter DRW239993SP
Membrane filter ASM210856SP
Terminal block, blue 236620SP
HMD80 display lid ASM210793SP

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