Riken Keiki EC-6002, Operating Manual

Page: 67 / 81

7 Maintenance 7-3. Gas calibration method
RM-6000
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<Span Adjustment "2-2"
＞
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”.
<<Span Adjustment Display>> (The following is display example of GP-6001.)
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.
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)
Span Adjustment Completed
Adjustment Result Recording
To record the adjustment result, press the
SET key.
(Press the MODE key to cancel this
menu.)
Adjustment Completed
The menu returns to 2-2. SPAN
automatically.
Return to 2-2. SPAN
Return to 2-2. SPAN
CAUTION
Do not press the SET
key before the reading
is stabilized.
CAUTION
Exhaust gas must be collected in the exhaust
bag or discharged through the exhaust line.
* When the span adjustment fails
* When the span adjustment fails
During maintenance
During inhibit
I