LPT-A Analog Transmitters0 pages

Transmitters - GAS DETECTION DATASHEET

LPT-A Analog Transmitter
technical drawing

F I XE D S YS TE M DATA S H E E T

The LPT-A is a full featured, single sensor, analog transmitter available
with a wide range of sensors and sensor types including electrochemical,
solid state and catalytic. Operating as an analog transmitter or a
standalone fixed system, the LPT-A offers 3-wire VDC or 4-wire VAC
power, jumper selectable 4 - 20 mA or 0 - 10 VDC analog output,
standard dry contact relay (2 amps @ 30 V SPDT), automatic thermal
resetting fuse, temperature compensation, back lit LCD digital display,
and audible alarm, all in a RoHS compliant package. All models in the
LPT Family of Transmitters come 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.

Note: Drawings above are shown with an optional splash guard. Without splash guard,
thickness of unit is 2.1” (53.34 mm).

WIRING

Remote Sensor
V+

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 required.

TMP
SNS
GND

LPT-A

RED
WHITE
YELLOW
BLACK

Remote Sensor

KEY FEATURES
» Linear 4 - 20 mA or 0 - 10 volt output signal
» 3-wire VDC or 4-wire VAC power
» 24 volt DC or AC power (nominal)
» Graphic LCD display (user selectable function)
» 1 dry contact relay, 30 volt 2 amp maximum
» Internal audible alarm
» Standard water / dust tight, corrosion resistant enclosure (drip proof);
IP54 certified with optional splash guard installed
» Available with an internal electrochemical sensor, or catalytic for
combustibles (internal or remote) or solid state for refrigerants or
TVOCs (internal or remote)
» Optional heater for the display

APPLICATIONS
» Parking garages and auto repair shops
» Arenas and swimming pool recreation facilities
» Cold storage and freezer rooms
» ... and many more

technical specifications
MECHANICAL
Enclosure
Weight
Size

ABS / Polycarbonate, NEMA 4X/IP54 certified
with splash guard installed
400 g (14 oz)
5.0” x 5.0” x 2.24”
(127 mm x 127 mm x 57 mm)

USER INTERFACE
Indicator

Graphic LCD. Text prompting for calibration
operation and fault indications. Installer
configurable to suppress all other displays.

ENVIRONMENTAL
-20°C to 40°C (-4°F to 104°F)
Operating Temperature Low temperature option available to
-40°C (-40°F) (sensor dependant)
Humidity
15 - 90% RH non-condensing

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