Vaisala HMD62 - 2 Product Overview; Introduction to HMD60 Series; HMD60 Series Basic Features and Options; Available Parameters and Default Scaling

2. Product Overview
2.1 Introduction to HMD60 Series
The duct mounted HMD60 HUMICAPâ Humidity and Temperature Transmitters are designed
for monitoring humidity and temperature in demanding HVAC and light industrial applications.
HMD60 series transmitters provide stable, reliable, and highly accurate (up to ±1.5 %RH and
±0.1 °C (0.18 °F) measurements, and are resistant to chemicals and dust.
HMD60 series transmitter options include two analog output models: HMD62 for measuring
both humidity and temperature, and TMD62 for temperature measurements. Both HMD62 and
TMD62 use 4 ... 20 mA loop powered current output.
Thanks to easy access to electronics also when the transmitter is installed to a duct,
configuration and adjustment can be carried out quickly and conveniently. Available
configuration and adjustment interface options range from physical trimmers and DIP switches
on the transmitter's circuit board to Vaisala Insight PC software for Windowsâ.
2.2
HMD60 Series Basic Features and Options
• Two analog transmitter model options:
• HMD62 for humidity and temperature measurement
• TMD62 for temperature measurement
• Humidity parameters available as output options in HMD62: RH, T
d
, T
df
, A, X, T
w
, H
• Default temperature analog output scale: -20 … +80 °C (-4 … +176 °C)
• Analog output: 4 ... 20 mA, loop powered
• HMD62: 2 analog output channels for humidity and temperature measurements
• TMD62: 1 analog output channel for temperature measurement
• Power supply input: 10 ... 35 VDC / 20 ... 35 VDC
•
Configuration and adjustment options:
• RH and T measurement field adjustment with trimmers
• Humidity output parameter selection with DIP switches (HMD62)
• Field adjustment with MI70 hand-held indicator
•
Configuration and adjustment with Vaisala Insight PC software
2.3
Available Parameters and Default Scaling
HMD62 Measurement Parameters and Default Analog Output
Scaling
Table 3 (page 6) shows the available output parameters and the default analog output
scaling of the parameters for HMD62.
Chapter 2 – Product Overview
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