RKI Instruments GD-70D Series - Page 102

GD-70D - 102 -
Disconnect Gas
Close the gas bag’s hose clamp and
immediately remove the gas bag from the
tubing stub on the GD-70D’s GAS IN fitting.
OR
Disconnect the calibration tubing from the
tubing stub on the GAS IN fitting.
↓
↓
Span Adjustment
Using the ▲ or ▼ keys, adjust the reading to
match the concentration in your gas bag. If
you diluted your gas, the concentration is half
of what is listed on the calibration cylinder.
Press the SET key.
8.0ppm
SPAN VAL
MAINTENANCE
↓
↓
Span Adjustment Completed
The instrument will indicate whether the span
adjustment passed (OK) or failed (NG).
8.0ppm
SPAN OK
MAINTENANCE
OR
8.0ppm
SPAN NG
MAINTENANCE
↓
↓
↓
Return to 2-2.SPAN
Save Adjustment
To save the adjustment result, press the SET
key.
(Press the MODE key to cancel this menu.)
8.0ppm
SPAN Y/N
MAINTENANCE
↓
↓
Adjustment Completed
After the span has been recorded, the
instrument will return to 2-2.SPAN
automatically.
8.0ppm
SPAN END
MAINTENANCE
↓
Return to 2-2.SPAN
Returning to Detection Mode
Store the components of the calibration kit in a safe place.
Reconnect the dust filter and inlet line to the GAS IN fitting.
Press and hold the MODE key to return to Detection Mode.
CAUTION
Exhaust gas must be collected
in the exhaust bag or discharged
through the exhaust line.