RKI Instruments RM-5000 Series Indicator/Alarm Unit - Manual (Page 69)

7 Maintenance 7-3. Gas calibration method
- 69 - RM-5000
7-3. Gas calibration method
Perform a gas calibration on the detector head (sensor) connected to the indicator/alarm unit in each mode
(zero adjustment mode and span adjustment mode) using the calibration gas.
• Zero adjustment gas (collected in a gas sampling bag)
• Span gas (collected in a gas sampling bag)
• Gas sampling bags
<Zero Adjustment "2-1">
This is used to perform the zero adjustment on the detector head (sensor).
NOTE
Before starting the zero adjustment, supply the zero adjustment gas to the detector head (sensor) and
wait until the reading is stabilized.
<<Zero Adjustment>>
WARNING
After the adjustment is completed, never fail to press the MODE key to return to the detection mode.
WARNING
When the zero adjustment is performed in the atmosphere, check the atmosphere around the
detector head (sensor) for freshness before beginning the adjustment. If other gases exist, the
adjustment cannot be performed properly, thus leading to dangers when the gas leaks.
2-1. ZERO
Press SET key.
Present Concentration Value Display
Press the SET key to perform the
zero adjustment.
During maintenance
During inhibit
Lamp on
Lamp off
Lamp blinking
Zero Adjustment Completed
Press the SET key to perform the
The menu returns to
2-1. ZERO automatically.
* When the zero adjustment fails
Return to 2-1.ZERO
Return to 2-1.ZERO