RKI Instruments Beacon 800 - Manual (Page 28)

25 • Calibration Mode Beacon 800 Gas Monitor Operator’s Manual
Calibration Mode
This section describes how to use calibration mode to calibrate a detector head.
WARNING: The Beacon 800 is not an active gas monitoring device during the
calibration procedure.
Entering Calibration Mode
1. Assemble the calibration kit(s). See the instruction manual for each detector head for
procedures specific to that detector head.
2. Open the Beacon 800’s housing door, and locate the program buttons to the right of
the display screens.
3. Simultaneously press and hold the ESCAPE and ENTER buttons for approximately
5 seconds to enter the Configuration menu. Release the buttons when the
You Have
Entered the Configuration Menu... message displays.
NOTE: The Configuration menu includes a 5-minute time-out feature. If you do not
perform an action within 5 minutes of the previous action, the Beacon 800
automatically returns to normal operation.
4. Press the UP (YES) button to continue.
5. Press the UP (YES) or DOWN (NO) button until the 2) Enter Calibration Mode
message appears on the bottom display screen, then press the ENTER button.
The calibration time-out setting displays. If necessary, adjust this setting using the UP/
YES and DOWN/NO buttons.
NOTE: Once you enter Calibration mode, the alarm lights, buzzer, and relays are
disabled for the amount of time indicated by this setting or until you exit
Calibration mode.
The Beacon 800 automatically exits Calibration mode if you do not exit before the
calibration time-out expires. If necessary, adjust the setting from this screen.
6. Press the ENTER button to enter Calibration mode. The gas readings will alternate
with a message showing that the unit is in Calibration mode.
Calibrating the Detector Head(s)
NOTE: All calibration adjustments must be made at the detector head.
1. Verify that the detector head is in a fresh-air environment. (If necessary, use a zero-
emission air cylinder, also known as zero air, to introduce a fresh-air sample when
adjusting the zero reading below.)
2. Adjust the detector head’s zero (fresh air reading for oxygen) reading. See the
detector head’s instruction manual for instructions on how to adjust the zero reading
(fresh air reading for oxygen).
3. Apply calibration gas to the detector head’s detector and adjust the detector head’s
span reading (zero reading for oxygen). See the detector head’s instruction manual for