Critical Environment Technologies LPT-M, Руководство по эксплуатации

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10 © 2020 All rights reserved. Data subject to change without notice.
LPT-M - Operation Manual Rev. B | 2020.11
Telephone: +1.604.940.8741
Email:
marketing@cetci.com
Website: www.critical-environment.com
In no event will CETCI, its offi cers or employees be liable for any direct, special, incidental or
consequential damages resulting from any defect in any manual, even if advised of the possibility
of such damages.
2 INTRODUCTION
2.1 General Description
Thank you for purchasing our LPT-M Modbus® Transmitter. The LPT-M is a full-featured, digital
gas detector for monitoring toxic and combustible gases in non-hazardous (non-explosion
rated) environments such as commercial HVAC and light industrial applications. It is designed to
communicate with a Controller or Building Automation System (BAS) with Modbus® RTU RS-485
serial communication.
Sensor confi guration options include one, two or three channel operation with a comprehensive
choice of sensors for many toxic gases (electrochemical) and combustible (catalytic) gases, plus PID
TVOCs. All LPT-M transmitters operate by diff usion. The sensors utilized in this device are accurate
enough to measure to Occupational Health & Safety (OHS) hazardous levels for toxic gases.
Operating as a digital transmitter or as a standalone fi xed system, the LPT-M off ers an audible
internal alarm, one dry contact relay, graphic LCD display with user selectable functions,
temperature compensation and an automatic thermal resetting fuse all in a RoHS compliant
package and standard water / dust tight enclosure. With the optional splash guard installed, the
enclosure is IP54 rated and will be protected in water spray or wash down applications. An optional
internal heater for is available for cold environment applications.