Vaisala HMD60 Humidity & Temperature Transmitters

Features

  • Measurement accuracy up to ±1.5 %RH and ±0.1 °C (±0.18 °F)
  • 4 … 20 mA analog outputs: HMD62 (RH and T) and TMD62 (Tonly)
  • 0 … 10 V analog outputs: HMD65 (RH and T)
  • BACnet MS/TP and Modbus RTU: HMD65
  • All common humidity parameters available, including RH, dew point, enthalpy, and wet bulb temperature
  • Resistant to chemicals and dust
  • IP66-rated body
  • Traceable calibration certificate
  • Easy field adjustment and output configuration with quick access to electronics also when installed
  • Compatible with Vaisala Insight PC software
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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.

The sturdy and reliable duct-mounted Vaisala HUMICAP® Humidity Transmitter Series HMD60 is designed for monitoring relative humidity in demanding HVAC and light industrial applications. The combination of high accuracy, stability, and reliable operation makes this product series an ideal choice for demanding applications. 5-year warranty is valid for instruments purchased in 2021 and beyond. The HMD60 and HMD65 have been certified by the BACnet Testing Laboratories (BTL) with the BACnet Conformance Certificate.

The models in this series are:

  • HMD62 for measuring humidity and temperature
  • TMD62 for measuring temperature only
  • HMD65 for measuring humidity and temperature with BACnet and Modbus protocols
  • HMD60 for measuring humidity and temperature with a short probe, fully configurable
  • TMD60 for measuring temperature only with a short probe, fully configurable
  • All these duct-mounted transmitters are robust and reliable and they are resistant to chemicals and dust. The all-metal body is IP66-rated.

All common humidity parameters are available in the HMD60: dew point, wet bulb, enthalpy, absolute humidity, mixing ratio. All these parameters can be selected using DIP-switches. Field adjustment is easy with the high precision trimmers or using the Vaisala HUMICAP® Hand-held Humidity and Temperature Meter HM70. The transmitter is also configurable using the Vaisala Insight PC Software. The combination of high accuracy, stability and reliable operation makes this product series an ideal choice for museums, cleanrooms and laboratories to mention a few examples. The products come with a traceable calibration certificate.

Dimensions (Long and Short Probe Options)

Specification

Model Measurement Parameters Outputs and Scaling
HMD62 Humidity and Temperature 2 analog outputs, 4 … 20 mA
TMD62 Temperature 1 analog output, 4 … 20 mA
HMD65 Humidity and Temperature 2 analog outputs, 0 … 10 V
Digital output: BACnet MS/TP, Modbus RTU
HMD60 Humidity and Temperature Configurable outputs and scale, short probe option
TMD60 Temperature 1 analog output (4 … 20 mA, configurable scale), short
probe option
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)
1) Including non-linearity, hysteresis, and repeatability
2) 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:
• MI70 handheld indicator (requires cable 219980SP)
• Vaisala Insight PC software 2) (requires USB cable 219690)
Screw terminal wire size 0.5 … 2.5 mm2
1) Calculated output parameters for HMD62 and HMD65 include Td, Tdf, A, X, Tw, and H.
2) Vaisala Insight software for Windows available at www.vaisala.com/insight.
Spare Parts & 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)

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