184 • Appendix F: ESS-03 Toxic Sensors
GX-6000 Operator’s Manual
Appendix F: ESS-03 Toxic Sensors
Overview
The ESS-03 sensors are used to monitor levels of a variety of toxic gases. This appendix
describes the GX-6000’s ESS-03 sensors. It also includes instructions to replace an ESS-
03 sensor. Table 19 below lists the available ESS-03 sensors.
Table 19: ESS-03 Sensor Specifications
NOTE:
If you are attempting to detect chlorine, be sure the hose/probe does not have a
particle filter installed. Also be sure that the hose is not longer than 30 feet.
Description
The ESS-03 is a smart sensor that stores sensor parameters including the target gas,
detection range, alarm points, and calibration settings in its memory. So a sensor can be
calibrated at the factory and shipped as a replacement sensor without the need to calibrate
the sensor when it is installed as long as it is installed during the sensor’s valid calibration
period which is typically 3 months. In addition, you can change an existing ESS-03
channel from one type of ESS-03 sensor to another and the GX-6000 will automatically
load all the sensor parameters and configure the ESS-03 channel for the new sensor. See
“Replacing the ESS-03 Sensor or Changing Sensor Type” on page 192 for instructions to
replace or change an ESS-03 sensor.
The ESS-03 sensor is a cylindrical sensor with a diffusion opening on the front and a
connector on the back. The ESS-03 sensor is installed in one of the two smart sensor
sockets and is held in place by the sensor gasket and the flow chamber.
Target Gas
Detection
Range
Reading
Increment
Alarm 1
Factory
Setting
Alarm 2
Factory
Setting
STEL
TWA
Ammonia
(NH
3
)
0 - 400 ppm
0.5 ppm
25 ppm
50 ppm
35 ppm
25 ppm
Chlorine (Cl
2
)
0 - 10.0 ppm
0.05 ppm
0.50 ppm
1.00 ppm
1.00 ppm
0.50 ppm
Hydrogen
Cyanide
(HCN)
0 - 15.0 ppm
0.1 ppm
5.00 ppm
10.0 ppm
4.7 ppm
N/A
Nitrogen
Dioxide (NO
2
)
0 - 20.00 ppm
0.05 ppm
3.00 ppm
6.00 ppm
N/A
3.00 ppm
Sulphur
Dioxide (SO
2
)
0 - 99.90 ppm
0.05 ppm
2.00 ppm
5.00 ppm
5.00 ppm
2.00 ppm