11-3
BUMP TEST MODEUSER HANDBOOK
• Press the UP or DOWN buttons as necessary to
enter / edit value.
Note 1: As soon as either the UP or DOWN buttons are touched
and when there is no value displayed, a value one unit away
from the GMI default value, is automatically displayed. This
assists the user to enter the required gas concentration
more quickly.
Note 2: Pressing and holding either of the buttons will perform a
fast ramped increase / decrease in value.
At this point, the user can accept the highlighted value and apply the
gas, or alternatively, continue dening the other gases.
To accept the highlighted gas range concentration value:
• Press and hold OK .
If OK was selected, then the
screen, shown opposite, is
displayed:
On the left, the gas ranges
are displayed. In the middle
column, the target for the
applicable ranges are
displayed and on the right,
the (applied gas) peak value.
Gas range values that were
not entered in the applied CalGas will display the peak value as a
dash (-).
Apply the gas manually, using a balanced ow regulator.
Once the peak reading is high enough, or stabilised, disconnect the
gas. At this point the user can EXIT and all values will be stored
automatically, or go back to the CalGas set-up to dene and apply
another gas.
Fig. 11-4 Applied Gas Peak
Values
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