Specifications - HMD60 - HMD65

HMD65 User Guide

Document code
M212243EN
Revision
C
Language
English
Product
HMD60
HMD65
Document type
User guide
Table 1. Relative Humidity Measurement Performance
Property Specification
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)
Table 2. Temperature Measurement Performance
Property Specification
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
Table 3. Analog Output Performance
Property Specification
Accuracy at +20 °C (68 °F) ±5 mV
Temperature dependence ±0.2 mV/°C
Table 4. Operating Environment
Property Specification
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
Table 5. Inputs and Outputs
Property Specification
Power supply input

15 … 35 VDC

16 … 24 VAC

Power consumption

1.0 W (typical, for both AC and DC)

Analog output

1 × RH output 0 … 10 V, 1 × T output 0 … 10 V 3 (load resistance: 10 kΩ min.)

Digital output (RS-485) 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:
  • MI70 handheld indicator (requires cable 219980SP)
  • Vaisala Insight PC software (requires USB cable 219690) 4
Screw terminal wire size 0.5 ... 2.5 mm2
Table 6. Mechanical Specification
Property Specification
Housing material Cast aluminum
Probe material Stainless steel
IP rating IP66 (NEMA 4X)
Weight 511 g (18 oz)
1 Including non-linearity, hysteresis, and repeatability
2 With HUMICAP® 180V sensor, accuracy is not specified below -20 °C (-4 °F) operating temperature
3 Vaisala Insight software for Windows® available at www.vaisala.com/insight.