186 • Appendix F: ESS-03 Toxic Sensors
GX-6000 Operator’s Manual
Start Up and Normal Operation
For instructions to startup and use a GX-6000 that includes an ESS-03 sensor, reference
“Start Up” on page 25, “Measuring Mode, Normal Operation” on page 35, and
“Measuring Mode, Alarms” on page 41. Follow these instructions keeping the following
special considerations in mind:
•
Some of the gases that are monitored with an ESS-03 may be absorbed in small
amounts in the longer GX-6000 sample hoses. When detecting gases other than
chlorine, do not use sample hoses that are longer than 50 feet without consulting RKI
Instruments, Inc. When detecting chlorine, do not use sample hoses that are longer
than 30 feet. If using a hose and probe to monitor toxic gases, be sure to calibrate the
ESS-03 sensor with the hose and probe attached so that the calibration reflects any
absorption that may be occurring.
•
If you are attempting to detect chlorine, be sure the hose/probe does not have a particle
filter installed.
•
If your GX-6000 has more than one ESS-03 sensor installed, it is possible that both
sensors will respond to some of the same gases at varying levels. Make sure you
understand any issues like this that may exist in your particular instrument.
•
The SO
2
and HCN ESS-03 sensors include an H
2
S scrubber disk inside the sensor
face. The H
2
S scrubber disk prevents false SO
2
and HCN readings by removing any
H
2
S that would cause a response on the SO
2
and HCN sensors.
ESS-03 Calibration
An ESS-03 channel can be calibrated using the auto calibration method or the single
calibration method.
NOTE:
ESS-03 calibration must be done with the hose and probe attached. If you are
calibrating a chlorine sensor, be sure the hose/probe does not have a particle
filter installed.
Calibrating the ESS-03 Sensor Using Auto Calibration
The calibration instructions below assume a standard 4 + high range PID + ESS-03
instrument configuration.
There are several ways to calibrate a standard 4 + high range PID + ESS-03 instrument:
•
separate cylinders for the standard 4 sensors, high range PID sensor, and ESS-03
sensor (3 cylinders total)
•
5-gas cylinder for the standard 4 sensors plus high range PID sensor and a separate
cylinder for the ESS-03 sensor (2 cylinders total)
•
separate cylinder for the high range PID sensor and a 5-gas cylinder for standard 4
sensors plus ESS-03 sensor (2 cylinders total)
See “Calibration Supplies and Equipment” on page 70 for a description of the necessary
calibration supplies. See Table 23 on page 196 for available cylinders. Make sure your
calibration cylinder is appropriate for the ESS-03 detection range.