For monitoring: Ammonia, Carbon monoxide, Chlorine dioxide, Chlorine, Ethylene, Ethylene oxide, Fluorine, Formaldehyde, Hydrogen, Hydrogen sulphide, Hydrogen chloride, Hydrogen cyanide, Hydrogen fluoride, Nitric oxide, Nitrogen dioxide, Oxygen, Ozone, Phosphine, Silane, Sulfur dioxide, Methane, Propane, Hydrogen, TVOCs

 

Key Features

  • 1, 2 or 3 channel operation with internal and/or remote sensor configurations
  • Modbus® RS-485 RTU communication
  • LCD display
  • One 2A SPDT dry contact relay
  • Internal audible alarm
  • 24 VAC/VDC power
  • 4-conductor daisy chain network wiring
  • Unobtrusive calibration and menu navigation using a magnetic wand
  • Optional display heater for cold environment applications
  • Standard water / dust tight, corrosion resistant enclosure (drip proof)
  • IP54 rated with optional splash guard installed.

 

Description

The LPT-M is a full featured, three channel, digital transmitter for use in non-hazardous, non-explosion rated, commercial and light industrial applications. It is available with a wide range of internal and/or remote sensors and sensor types including electrochemical, catalytic and PID TVOCs.

The LPT-M may be configured to operate as a standalone fixed system or be part of a digital network. It offers a Modbus® RS-485 RTU output signal for communicating with a Controller and/or a Building Automation System, an audible internal alarm, one SPDT dry contact relay, LCD display with user selectable functions, temperature compensation and thermal resetting fuses all in a RoHS compliant package.

The LPT-M comes in a standard water / dust tight, corrosion resistant ABS / polycarbonate enclosure with a hinged, secured door. With the optional, factory installed splash guard the enclosure is IP54 rated and provides protection in water spray or wash down applications. An optional heater is available for continued operation in cold environment applications.

LPT-M Modbus® Transmitter

  • Target Gas

     

    Electrochemical Sensors (internal)

    Ammonia (NH3), Carbon monoxide, Chlorine (Cl2), Chlorine dioxide (ClO2), Ethylene (C2H4), Ethylene oxide (C2H4O), Fluorine (F2), Formaldehyde (CH2O), Hydrogen (H2), Hydrogen chloride (HCl), Hydrogen cyanide (HCN), Hydrogen fluoride (HF), Hydrogen sulphide (H2S), Nitric oxide (NO), Nitrogen dioxide (NO2), Oxygen (O2), Ozone (O3), Phosphine (PH3), Silane (SiH4), Sulphur dioxide (SO2), TVOCs (Isobutylene)

    Catalytic Sensors (remote)

    Hydrogen (H2), Methane (CH4), Propane (C3H8)

    PID Sensors (remote)

    TVOCs

    Infrared Sensors (remote)

    Propane (C3H8), Carbon dioxide (CO2)

    Mechanical

     

    Enclosure

    ABS / Polycarbonate

     

    Copper coated interior to reduce RF interference

     

    IP54 rated with optional splash guard installed

    Weight

    363 g / 0.8 lbs

    Size

    127 x 127 x 71 mm / 5.0 x 5.0 x 2.8 inches

    User Interface

     

    Display

    Graphic LCD, green border

     

    Magnetic switches to initiate calibration without opening the enclosure

    Input/Output

     

    Output

    Modbus® RS-485 RTU

    Relay

    One SPDT dry contact, rated 30 Volts, 2 Amps max

    Audible Alarm

    Standard internal buzzer

    Electrical

     

    Power Requirement

    16-30 VDC, 3 W, Class 2

     

    12-27 VAC, 50-60 Hz, 3 VA, Class 2

    Current Draw

    30 mA (buzzer & relay energized, 2 sensors)

    Wiring

    LAN Modbus® RTU (version 1.1b3) RS-485, 16 gauge, 4-conductor shielded network wiring (daisy-chain)

    Fuses

    Thermal, resetting

Copyright© 2020 by Tops Instruments Supplies Co. graphics, data sheet, photos and videos all rights reserved.