INSTRUCTIONS
Electrochemical Gas Detector
GT3000 Series
Includes Transmitter (GTX)
and Sensor Module (GTS)
12.2
©
Detector Electronics Corporation 2017
Rev: 8/16
95-8616
IMPORTANT
Be sure to read and understand the entire
instruction manual before installing or operating
the gas detection system. This product is
intended to provide early warning of the presence
of a toxic or explosive gas mixture, or of oxygen
depletion. Proper device installation, operation,
and maintenance are required to ensure safe
and effective operation. If this equipment is used
in a manner not specified in this manual, safety
protection may be impaired.
DESCRIPTION
The GT3000 Electrochemical Gas Detector is an
intelligent stand-alone industrial gas detector, designed
to provide continuous monitoring of the atmosphere
for hazardous gas leaks or oxygen depletion. It is fully
performance tested and approved by Factory Mutual.
Refer to Appendix F for individual gas specifications.
The GT3000 Gas Detector consists of a replaceable
sensor module (Model GTS) connected to a
transmitter module (Model GTX). A single transmitter
is compatible with all GTS sensor modules. A variety of
electrochemical sensor models are available in various
concentration ranges.
The GT3000 is a 2-wire device that generates a 4–20
mA output signal with HART communication that is
proportional to the concentration of the target gas.
The GT3000 is compatible with FlexVu
®
Model UD10 and
UD20 Universal Display Units, as well as other devices
that are able to monitor a linear 4–20 mA dc signal. All
alarm functions are provided by the monitoring device.
The GT3000 is designed and approved as a stand
alone unit for use in hazardous locations. It is suitable
for outdoor applications that require IP66 rating and
uses a hydrophobic filter that is easily replaced without
opening the device or use of tools. The GT3000 is
furnished as either explosion-proof or intrinsically safe.
The GT3000 supports local one-person calibration
with the use of a magnet and on-board LED.
GTS SENSOR MODULE
The GTS’s electrochemical sensor cell uses capillary
diffusion barrier technology for monitoring gas
concentrations in ambient air.
Live Maintenance
The hot swappable GTS sensor module is intrinsically
safe and allows live maintenance while under power,
without de-classifying the hazardous area. When the
sensor is removed, the transmitter generates a fault
output. If a new sensor of the same type and range is
installed, the fault self-clears. However, if the type or
range of the new sensor module does not match the
old, the transmitter generates a fault until a successful
calibration or acceptance of the new sensor type is
completed. For additional information regarding Live
Maintenance, refer to “Sensor Module Replacement” in
the "Maintenance" section of this manual.
Sensor
Module
(GTS)
Transmitter
(GTX)
Detector (GT3000)