Vaisala Official Distributor in Humidity, Dewpoint, Continuous Monitoring System (CMS) viewLinc (2015),
Temperature, CO2, Barometric Pressure, Moisture in Oil, Wind etc in Malaysia since 1990s

Technical Data

Relative Humidity Measurement Performance

Humidity Sensor Options:
HUMICAP R2 / Latest generation industrial sensor with improved corrosion resistance
HUMICAP 180V / Humidity sensor with a catalytic surface for processes with H₂O₂

Measurement range / 0 ... 100 %RH
Stability / ±0.5 %RH/year in typical HVAC applications

Accuracy at 0 ... +40 °C (+32 ... +104 °F) 1)
0 ... 90 %RH / ±1.5 %RH
90 ... 100 %RH / ±2.5 %RH

Accuracy at +40 ... +80 °C (+104 ... +176 °F) and -40 ... 0 °C (-40 ... +32 °F) 1) 2)
0 ... 90 %RH / ±2.5 %RH
90 ... 100 %RH / ±3.5 %RH

Factory calibration uncertainty / ±1.0 %RH

Start-up and Response Time
Start-up time at +20 °C (+68 °F) / 8 s
Response time (T63) at +20 °C (+68 °F) / 15 s

Calculated Humidity Parameters (Default Analog Output Scale)
Dew point / -40 ... +80 °C (-40 ... +176 °F)
Dew point / frost point / -40 ... +80 °C (-40 ... +176 °F)
Absolute humidity / 0 ... 300 g/m³ (0 ... 131.1 gr/ft³)
Wet bulb temperature / -40 ... +80 °C (-40 ... +176 °F)
Enthalpy / -40 ... 1600 kJ/kg (-9.5 ... 695.6 Btu/lb)
Mixing ratio / 0 ... 600 g/kg (0 ... 4200 gr/lb)

*Including non-linearity, hysteresis, and repeatability

*With HUMICAP 180V sensor, accuracy is not specified below -20 °C (-4 °F) operating temperature

Temperature Measurement Performance

Temperature sensor / Pt1000 RTD Class F 0.1 IEC 60751
Measurement range / -40 ... +80 °C (-40 ... +176 °F)
Default analog output scale / -20 ... +80 °C (-4 ... +176 °F)
Accuracy at +20 °C (+68 °F) / ±0.1 °C (0.18 °F)
Temperature dependence / ±0.005 °C/°C
Factory calibration uncertainty / ±0.1 °C (0.18 °F)
Response time (T63) with free convection / 8 min

Analog Output Performance

Accuracy at +20 °C (+68 °F):
±0.01 mA (HMD62 and TMD62)
±5 mV (HMD65)

Temperature dependence:
±0.0008 mA/°C (HMD62 and TMD62)
±0.2 mV/°C (HMD65)

Operating Environment

Operating temperature, electronics / -40 ... +60 °C (-40 ... +140 °F)
Operating temperature, probe / -40 ... +80 °C (-40 ... +176 °F)
Storage temperature range / -40 ... +80 °C (-40 ... +176 °F)
Maximum flow speed / 50 m/s with sintered filter
Electromagnetic compatibility / EN61326-1, Industrial Environment

Inputs and Outputs

Power supply input:
HMD62 and TMD62: 10 ... 35 VDC (RL = 0 Ω), 20 ... 35 VDC (RL = 600 Ω)
HMD65: 15 ... 35 VDC, 16 ... 24 VAC

Power consumption (HMD65) / 1.0 W (typical, for both AC and DC)

Analog outputs:
TMD62: 1 × T output 4 ... 20 mA
HMD62: 1 × RH output 4 ... 20 mA, 1 × T output 4 ... 20 mA 1)
HMD65: 1 × RH output 0 ... 10 V, 1 × T output 0 ... 10 V 1) (load resistance: 10 kΩ min.)

Digital output (RS-485) / HMD65: Isolated, supports Modbus RTU and BACnet MS/TP protocols
BACnet MS/TP / Address range: 0 ... 127 (master mode only)
Modbus RTU / Address range: 1 ... 247

Service port / M8 4-pin male connector:

*HM70 handheld indicator (requires cable 219980SP)

*Vaisala Insight PC software 2) (requires USB cable 219690)

*Screw terminal wire size / 0.5 ... 2.5 mm²Calculated output parameters for HMD62 and HMD65 include Td, Tf, a, Tw, h, and x.

*Vaisala Insight software for Windows available at vaisala.com.

Spare Parts and Accessories

USB cable for PC operation (Vaisala Insight software) / 219690
Connection cable for HM70 (MI70) handheld meter / 219980SP
Membrane filter / ASM212652SP
Sintered filter / HM46670SP
Sintered teflon filter / DRW244938SP
Conduit fitting and O-ring (M16×1.5 / NPT1/2") / 210675SP

Mechanical Specification

Housing material / Cast aluminum
Probe material / Stainless steel
IP rating / IP66 (NEMA 4X)
Weight / 511 g (18 oz)