QC-1 Module
Page 8
When the coarse adjust in range the unit will return to displaying the set
point concentration.
If the Low PPM warning message is present open the vial adjust slightly by
rotating it counterclockwise to allow additional gas to enter the system. If
the High PPM warning message is
present close the vial adjust knob by
rotating it clockwise as shown in the
image to the right.
When the instrument has stabilized,
the display will change to read the
concentration of the gas being
generated and the flow rate as shown
below.
100 PPM NH3
@ .50
The position of the vial adjust is a rough adjustment depending on the
concentration you have selected. The instrument will adjust flow to obtain
the exact concentration. In general, a more open vial adjust will result in a
higher flow rate and a more closed vial adjust will result in a lower flow
rate. If at any time the unit is unable to produce the exact concentration
selected, you will be notified with the above menu accompanied by the
audible beep (single beep for low PPM. Double beep for high PPM.)
At any time during operation, pressing the select switch will result in the
following series of menus
100 PPM NH3
Select to change
Battery Status
100
pressing the select button will result in the following display.
