GD-70D - 98 -
Using the ▲ or ▼ keys, adjust the reading to
match the concentration in the gas bag
multiplied by the conversion factor on the
sensor OR to the value listed in the table at
the beginning of this section.
For example, a gas bag of 0.1 ppm PH3
multiplied by a conversion factor of 1.7 is 0.17
ppm AsH3 or H2Se.
SPAN VAL
Span Adjustment Completed
The instrument will indicate whether the span
adjustment passed (OK) or failed (NG).
SPAN OK
OR
SPAN NG
To save the adjustment result, press the SET
key.
(Press the MODE key to cancel this menu.)
SPAN Y/N
After the span has been recorded, the
instrument will return to 2-2.SPAN
automatically.
SPAN END
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.