RKI Instruments EAGLE 2 - Appendix E: ESM-01 Toxic Sensors; Overview; Description

180 • Overview EAGLE 2 Operator’s Manual
Appendix E: ESM-01 Toxic Sensors
Overview
The ESM-01 sensors are used to monitor levels of a variety of toxic gases.
This appendix describes the EAGLE 2’s ESM-01 sensors and includes
instructions to use an EAGLE 2 that has one or more ESM-01 sensors
installed. It also includes instructions to replace an ESM-01 sensor.
Table 18: ESM-01 Sensor Specifications
Description
Table 18 above lists the available ESM-01 sensors. The ESM-01 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 ESM-01 channel from one type of ESM-01 sensor to
another and the EAGLE 2 will automatically load all the sensor parameters
and configure the ESM-01 channel for the new sensor without the need to
enter CONFIGURE CHANNELS or CONFIGURE GASES in Setup Mode.
Target Gas Detection
Range (ppm)
Reading
Increment
Alarm 1
Factory
Setting
Alarm 2
Factory
Setting
STEL
(ppm)
TWA
(ppm)
Ammonia
(NH
3
)
0 - 75.0 0.5 ppm 12.0 ppm 25.0 ppm 35 25
Arsine
(AsH
3
)
0 - 1.50 0.01 ppm 0.20 ppm 0.50 ppm OFF OFF
Chlorine
(Cl
2
)
0-3.00 0.02 ppm 0.50 ppm 1.50 ppm 1.00 0.50
Hydrogen
Cyanide
(HCN)
0 - 15.0 0.1 ppm 3.00 ppm 5.00 ppm 4.7 OFF
Phosphine
(PH
3
)
0 - 1.00 0.01 ppm 0.10 ppm 0.30 ppm 1.00 0.30
Sulphur
Dioxide
(SO
2
)
0 - 6.00 0.05 ppm 1.00 ppm 2.00 ppm 1.00 0.50