Humidity and Temperature Transmitter
- Vaisala - HMS80
- ±3%RH outdoor sensors for HVAC
- Integrated solar radiation shield
- Minimal maintenance
±3%RH Outdoor Sensor for HVAC
A reliable basic outdoor humidity sensor for a pole or wall installation. Dew point, wet bulb and enthalpy outputs can be selected by dip switch instead of the default RH output.
The Humidity and Temperature Sensor Transmitter Series HMS80 are optimized for outdoor measurements HVAC. They feature an integrated solar radiation shield, which is a must for accurate humidity and temperature measurements in outdoor conditions. Both 2-wire HMS82 and 3-wire HMS83 versions are available.
Key Benefits
Easy Installation
The HMS80 can be mounted directly to a wall or pole without any extra accessories.
Low Maintenance
The INTERCAP sensor can easily be replaced in the field with minimum downtime.
Integrated radiation shields
The radiation shields reduce the influence of solar radiation on temperature and humidity measurements
| Model | Type | Output | IP Rating |
| HMS82 | Outdoor, RH+T | 2-wire, current output | IP65 |
| HMS83 | Outdoor, RH+T | 2-wire, current output | IP65 |
Relative Humidity | |
| Measurement range | 0 ... 100 %RH |
| Accuracy at temperature range | +10 … +30 °C (+50 … +86 °F) |
| 0 … 90 %RH | ±3 %RH |
| 90 … 100 %RH | ±5 %RH |
| Accuracy at temperature range | -40 … -20 °C (-40 … -4 °F) |
| 0 … 100 %RH | ±7 %RH |
| Stability in typical HVAC applications | ±2 %RH over 2 years |
| Accuracy at temperature range | -40 … -20 °C (-40 … -4 °F): |
| 0 ... 100%RH | ±4 %RH |
| 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) |
| Accuracy at 20 °C (68 °F) and 80 %RH: | |
| Dew point | ±0.9 °C (1.6 °F) |
| Wet bulb temperature | ±0.7 °C (1.3 °F) |
| Enthalpy | ±2 kJ/kg (0.9 BTU/lb) |
| Operating temperature | -40 … +60 °C (-40 … +140 °F) |
| Operating humidity | 0 … 100 %RH |
| Maximum wind/flow speed | 30 m/s (67 mph) |
| Storage temperature | -40 … +60 °C (-40 … +140 °F) |
| EMC compliance | EN61326-1, Industrial Environment |
Current Output Model HMS82 (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 Model HMS83 (3-wire) | |
| Outputs | 0 … 10 V |
| Load resistance | 10 kΩ min |
| Supply voltage | 18 … 35 VDC |
| 24 VAC ±20 % 50/60 Hz | |
| Max. wire size | 1.5 mm2 (AWG 16) |
| Standard housing color | White (RAL9003) |
| Housing material | PC + 10 %GF (UL-V0 approved) |
| INTERCAP sensor | 15778HM |
| 10 pcs of INTERCAP sensors | INTERCAPSET-10PCS |
| Conduit fitting + O-ring (M16 × 1.5 / NPT1/2 Inch) | 210675SP |
| Conduit fitting + O-ring (M16 × 1.5 / PG9, RE-MS) | 210674SP |
| Fastening set HMS80 | 237805 |
| Membrane Filter | ASM210856SP |
| Terminal Block, Blue | 236620SP |
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