LPT-B BACnet® Transmitter

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

A full featured, 3 channel, digital (BACnet®) gas detector with many gas sensor choices, intended to be used 
alone or integrated into an existing BACnet® network 

Applications
Parking Facilities, Arenas and Pools, Chiller Rooms, Manufacturing Plants, Maintenance Facilities, Food Processing 
Plants, Ice Cleaning Machine Rooms and many more...

Key Features

• 1, 2 or 3 channel operation with internal and/or remote sensor configurations
• BACnet® MS/TP 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
• Standard water / dust tight, corrosion resistant enclosure (drip proof)
• IP54 rated with optional splash guard installed.

The LPT-B is a full featured, 3 channel, BACnet® 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 external sensors 
and sensor types including electrochemical, catalytic and PID TVOCs.

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

The LPT-B comes in a standard water / dust tight, corrosion resistant ABS / polycarbonate enclosure with a hinged, 
secured door. It is IP54 rated with the optional splash guard installed which provides protection in water spray or 
wash down applications.

The LPT-B is not compatible with CETCI’s Controllers. It is intended to be used alone or integrated into an existing 
BACnet® network.

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)

Mechanical

Enclosure						ABS / Polycarbonate, corrosion resistant 
							Copper coated interior to reduce RF interference 
							IP54 rated with optional splash guard installed

Weight						363 g / 0.80 lbs

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

User Interface

Display						Graphic LCD, yellow border 
							Magnetic switches to initiate calibration without opening the enclosure

Input/Output

Output						BACnet® MS/TP communications

Relay							One SPDT dry contact, rated at 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					55 mA (buzzer & relay energized, 2 sensors)

Wiring						4-conductor, 16 AWG stranded, shielded network wiring (daisy-chain)

Fuses							Thermal, resetting

Environmental

Operating Temperature				-20°C to 40°C (-4°F to 104°F)

Operating Humidity				15 - 90% RH non-condensing

Certifications

Conforms to						 CSA-C22.2 No. 205-12 / UL508 (Edition 17):2007 
							 EMC Directive 2004/108/EC, EN 50270:2006, Type 1, EN61010 
							 FCC. This device complies with part 15 of the FCC Rules. Operation is 
                                                         subject to the following two conditions: (1) This device may not cause 
                                                         harmful interference, and (2) this device must accept any interference 
                                                         received, including interference that may cause undesired operation. 
							 Listed by BTL 
							 RoHS compliant circuit boards