Vaisala HMT140 Guide Rapide page 5

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Product Overview
The Vaisala HUMICAP
measures relative humidity and temperature using the connected probe and analog signals –
RTD, Voltage, Current Loops and Boolean Contacts. It is powered with three 3.6 Volt DC
batteries (or an optional 9-30VDC power supply), outputs data via wireless transmitter, and
comes with or without an optional LCD display.
The HMT140 transmitter supports several different signal measurements. Available channel
types are Relative Humidity (RH) and Temperature (T), RTD, Boolean Contact, Voltage and
Current. The channel types are set at the factory during time of order. Other wireless
parameters can be changed afterward using the configuration port and included software.
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.
VAISALA _________________________________________________________________
®
Wireless Humidity and Temperature Transmitter HMT140
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