RKI Instruments Gas Tracer - Manual (Page 228)

220 • Calibrating and Bump Testing the PPM Combustible Sensor Gas Tracer Op-
PPM CAL menu in Calibration Mode.
11.Use the (SHIFT)▼ button to navigate to the NORMAL menu item,
then press and release the POWER ENTER button to return to
Measuring Mode.
Performing a Bump Test
This section describes how to bump test the PPM combustible gas
sensor.
NOTE: The BUMP DSP menu item in Maintenance Mode is factory
set to OFF. The BUMP menu item will not appear unless
BUMP DSP
is set to ON. See “Turning the Bump Test
Function On or Off” on page 157 for instructions.
NOTE: The Gas Tracer uses parameters defined in the BUMP--SET
menu item of Maintenance Mode while performing a bump
test. To view or update these parameters, see “Updating the
Bump Test Parameters” on page 158.
1. Use the AIR▲ or (SHIFT)▼ buttons to display the BUMP menu
item.
2. Fill the gas bag with ppm calibration gas as described in “Filling
the Gas Bag” on page 195.
3. Press and release the POWER ENTER button. You will be
prompted to choose between WET and DRY. Use the WET setting.
NOTE: The DRY setting is for factory use only. Do not perform a
bump test using the DRY setting.
MAINTENANCE
BUMP