RKI Instruments 12 VDC Beacon 200 - Manual (Page 48)

44 • 12 VDC Beacon 200 Operator’s Manual
9. Press the ENTER button at the 12 VDC Beacon 200 to proceed with
the calibration adjustment.
If the 12 VDC Beacon 200 is able to successfully make the calibration
adjustment, it will display the message Cal Passed for: Channel 2. It
will then return to the first calibration program screen which asks if you
want to continue or escape from the program. Press ESCAPE to return
to normal operation.
If the 12 VDC Beacon 200 is not able to make the calibration
adjustment, it will display the message Not Enough Response! CAL
Failed for: Channel 2, then return to the first calibration program
screen which asks if you want to continue or escape from the program.
Press ENTER to start the calibration process again or ESCAPE to
return to normal operation.
NOTE: Be sure to allow enough time between the application of
calibration gas and returning to normal operation for the gas
reading to return to normal levels to avoid false alarms. The alarm
circuits are active when the 12 VDC Beacon 200 returns to normal
operation.
Replacing the Fuses
The 12 VDC Beacon 200 includes two replaceable DC fuses. A third fuse
holder labelled F1 is not used in this version of the Beacon 200. To replace
other components of the 12 VDC Beacon 200, contact RKI Instruments,
Inc. for further information.
1. Turn off or unplug incoming power to the 12 VDC Beacon 200.
2. Open the housing door of the 12 VDC Beacon 200, then place the
power switch in the OFF position.
3. Locate the vertical fuse holders on either side of the power switch. The
DC fuses are labelled F2 and F3 and are on the right of the power
switch.
4. Use a flat-blade screwdriver to rotate the applicable fuse holder 1/4
turn counterclockwise. The fuse holder releases from the socket.
5. Remove the fuse holder from the socket, then remove the fuse from
the fuse holder.