Step by Step Procedures (continued):
7.
Once the desired display mode is selected, press the key
and the following display will be seen:
8.
Press the key again to exit menu mode and return to nor-
mal operation.
9.
Turn the thumbwheel on the side and set a consistent tic rate. If
necessary the key can be used to zero the display. Enter
the area and begin testing. As a leak is found the tic rate will
increase and depending on the display mode selected, the con-
centration will be displayed on the LCD in ppm, %LEL, or
stepped ppm.
10. To locate the source of a leak, use the thumbwheel to nullify the
increase in tic rate and move along the pipe, fitting, etc. being
tested.
11. Continue to nulify any increases in tic rate and move along the
item being tested until the leak source is located.
12. If the leak concentration is above the alarm level the alarm will
sound and LED’s located in the front panel and sensor cage will
flash.
10
11
Step by Step Procedures (continued):
6. Depending on the last display mode selected one of the
following displays will be seen. The display modes can be
changed by using the key to cycle between them.
“REAL” mode will display leak levels in ppm (parts per million)
“LEL %” will display leak levels in %LEL (Lower Explosive Limit)
“0ppm ud (ud=under)” will display leaks in steps. The steps are
0ppm, ud 500ppm, ud 1000ppm, ud 3000ppm, ud 5000ppm, ud
9999ppm
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