RKI Instruments RM-5000 Series Indicator/Alarm Unit - Manual (Page 70)

7 Maintenance 7-3. Gas calibration method
RM-5000 - 70 -
This is used to perform the span adjustment on the detector head (sensor). For the oxygen deficiency alarm
specification (O2: 0 - 25 vol%), this is the same as “1-1”.
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2-2. SPAN
Press SET key.
Gas Introduction
Introduce a gas to the connected detector
head (sensor), and then press the SET
key when the reading is stabilized.
* In case of less than 10%FS, this is not
switched to the next menu.
Adjustment Result Recording
To record the adjustment result, press the
SET key.
(Press the MODE key to cancel this
menu.)
Span Adjustment
Because the reading will be fixed, adjust
the introduced gas concentration by
pressing the ▲ or ▼ key. After adjusting
the value, press the SET key.
(20.9 vol% in the oxygen deficiency alarm
specification)
During maintenance
During inhibit
Lamp on
Lamp off
Lamp blinking
Span Adjustment Completed
Adjustment Completed
The menu returns to
2-2. SPAN automatically.
* When the span adjustment fails
Return to 2-2. SPAN
Return to 2-2. SPAN
Do not press the SET
key before the reading
is stabilized.
Exhaust gas must be collected in
the exhaust bag or discharged
through the exhaust line.