Vaisala HMT140 Service Manual download pdf (Page 5)

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VAISALA _________________________________________________________________

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Product Overview

The Vaisala HUMICAP

Wireless Humidity and Temperature Transmitter

HMT140 measures relative humidity and temperature using the connected

probe and analog signals – RTD, Voltage, Current loops and Contacts. It

outputs data via wireless transmitter and is powered with three 3.6 volt DC

batteries and optional 9-30VDC connection and comes in 2 models, with or

without the optional LCD display.

The HMT140 transmitter's output quantities are configurable. Available

quantities are Relative Humidity (RH), Temperature (T), RTD, Contact, mV

and mA. The default output quantities are set at the factory during order time.

These factory preset quantity selections and other wireless parameters can be

changed afterward using the configuration port and included utility if necessary.

The HMT140 is available either with a fixed probe directly attached to the

transmitter housing or a remote probe with different (3/5/10m) cable lengths.

The HMT140 is also available with an optional LCD display without backlight.

It is typically installed mounted on the wall with up to four screws (not

included). Duct installation kits are available as accessories. There is a drilling

template inside the back cover of this guide to help you position the screws

correctly.

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Vaisala HMT140 Service Manual Page 5