GX-3R Pro Operator’s Manual
Chapter 3: Operation
•
40
c. If
LATCHING
is set to
OFF
in Maintenance Mode, the alarm condition automatically
resets when the gas reading falls below (or rises above for an oxygen low alarm) an alarm
setpoint.
Responding to an H2 RICH Alarm (H
2
-Compensated CO Sensor Only)
The H2 RICH alarm automatically clears once the hydrogen level decreases below 2000 ppm
(parts per million).
Responding to Over Range Alarms
WARNING: An over range condition may indicate an extreme combustible gas, toxic gas, or
oxygen concentration. Confirm the gas concentration with a different GX-3R Pro
or with another gas detecting device.
CAUTION:
High off-scale readings may indicate an explosive concentration.
PRUDENCE:
Des lectures élevées hors échelle peuvent indiquer une concentration explosive.
1. Determine which channel is in alarm.
2. Follow your established procedure for an extreme gas condition.
3. If
LATCHING
is set to
ON
(factory setting) in Maintenance Mode, reset the alarm using
POWER MODE or AIR once the alarm condition clears.
If
Password Protection
is turned
On
(factory setting is
Off
) using the SDM-3R PC
program, you must press POWER MODE and AIR at the same time and then enter a user-
set password to reset an alarm condition. When the password screen appears, adjust each
digit with the AIR button and press and release the POWER MODE button to move on to
the next digit. Once the password is entered, the alarm condition resets.
4. Calibrate the GX-3R Pro as described on page 75.
5. If the over range condition continues or if you are not able to successfully calibrate the unit,
you may need to replace the sensor that has triggered the over range alarm.
6. If the over range condition continues after you have replaced the sensor, contact RKI
Instruments, Inc. for further instructions.
7:49
0000
PASSWORD