LPT Low Power Transmitter

For monitoring: Ammonia, Carbon monoxide, Nitrogen dioxide, Chlorine, Ozone or Oxygen

Single channel, analog gas detector for enclosed parking facilities, recreational facilities, oxygen depletion applications

Applications

  • Parking Facilities
  • Vehicle Repair Shops
  • Manufacturing Plants
  • Maintenance Facilities
  • Ice Rinks
  • Aquatic Facilities
  • Chiller Rooms
  • Chemical Storage Rooms
  • Oxygen Depletion
  • and many more...

Key Features

  • Single channel
  • Linear 4 - 20 mA output signal
  • 2-wire loop, 3-wire VDC or 4-wire VAC power
  • Standard water / dust tight, corrosion resistant enclosure (drip proof)
  • IP54 rated with optional splash guard installed

Description

The LPT is an economical, single sensor, analog transmitter for monitoring toxic gases non-hazardous, non-explosion proof rated commercial and light industrial applications. This basic transmitter is designed to be part of a fixed system with a Controller for applications such as car parks, vehicle repair, aquatic centers, ice rinks and oxygen depletion applications. It features a two-wire loop power, three-wire VDC or four-wire VAC power, 4 - 20 mA linear output signal, thermal resetting fuses, temperature compensation, and visual LED indication for power and fault conditions, all in a RoHS compliant package. Comes standard with a water / dust tight, corrosion resistant ABS / polycarbonate enclosure with a hinged, secured door. With the optional splash guard installed, the enclosure is IP54 rated and ideal for use in water spray or wash down applications.

Automated calibration and other maintenance procedures are simple and easily performed in the field. For parking garage applications, our proprietary Calibration Extending Firmware (CEF) takes into account the aging of the sensors so that less frequent calibrations are acceptable in non-critical applications.

Target Gas
Gas Sensors
Ammonia (NH3), Carbon monoxide (CO), Nitrogen dioxide (NO2), Chlorine (Cl2), Ozone (O3), Oxygen (O2)
Mechanical
Enclosure
ABS / Polycarbonate, corrosion resistance
Copper coated interior to reduce RF interference
IP54 rated with optional splash guard installed
Weight
200 g / 0.44 lbs
Size
127 x 127 x 53 mm / 5.0 x 5.0 x 2.1 inches
User Interface
Display
Single color status LED
Input/Output
Output
Linear 4 - 20 mA
Maximum 216 Ω load
(wiring plus termination resistor) at 16 VDC
Maximum 316 Ω load
(wiring plus termination resistor) at 12 VAC
Electrical
Power Requirement
2-wire mode: 16 - 30 VDC, 1 W, Class 2
3-wire mode: 16 - 30 VDC, 1 W, Class 2
4-wire mode: 12 - 27 VAC, 50-60 Hz, 1 VA, Class 2
Current Draw
25 mA @ 24 VDC (max)
Wiring
VDC 2-conductor 18 AWG stranded, shielded
VDC 3-conductor 18 AWG stranded, shielded
VAC 4-conductor 18 AWG stranded, shielded
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-M1983 (R2009), 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.
RoHS compliant circuit boards
Product Codes
LPT-TCO
Single channel, electrochemical carbon monoxide (CO) sensor (0 - 200 ppm range), LED indicator, 4 - 20 mA output, two-wire / three-wire / four-wire VAC power, sensor CEF, water / dust tight enclosure 
LPT-END
Single channel, electrochemical nitrogen dioxide (NO2) sensor (0 - 10 ppm range), LED indicator, 4 - 20 mA output, two-wire / three-wire / four-wire VAC power, sensor CEF, water / dust tight enclosure 
LPT-NH3
Single channel, electrochemical ammonia (NH3) sensor (0 - 500 ppm range), LED indicator, 4 - 20 mA output, two-wire / three-wire / four-wire VAC power, water / dust tight enclosure
LPT-O2
Single channel, electrochemical oxygen (O2) sensor (0 - 25% volume range), LED indicator, 4 - 20 mA output, two-wire / three-wire / four-wire VAC power, water / dust tight enclosure
LPT-CL2
Single channel, electrochemical chlorine (Cl2) sensor (0 - 5 ppm range), LED indicator, 4 - 20 mA output, two-wire / three-wire / four-wire VAC power, water / dust tight enclosure
LPT-O3
Single channel, electrochemical ozone (O3) sensor (0 - 2 ppm range), LED indicator, 4 - 20 mA output, two-wire / three-wire / four-wire VAC power, water / dust tight enclosure
Factory Options
-S
Splash Guard for non sticky gas sensors, factory installed, IP54 rating
-SN
Splash Guard for sticky gas sensors (Cl2, NO2, O3), factory installed, includes Calibration Adapter Slide Cap

Options, Accessories and More...