RKI Instruments beacon 410 - Entering Calibration Mode; Calibration Timeout Setting

48 • Entering Calibration Mode Beacon 410 Gas Monitor Operator’s Manual
Entering Calibration Mode
WARNING: The Beacon 410 is not an active gas monitoring device during the
calibration procedure. When you enter Calibration Mode, the 4-20 mA
output signal will “freeze” at 3.5 mA for each active channel, all relays
and alarm LEDs will remain in their current state at the time that you
entered Calibration Mode, and the alarm buzzer and strobe will turn off
if they were activated until you exit Calibration Mode. The 4 - 20 mA
output signal will not indicate current readings and the relays and
alarm LEDs will not resume operating normally until the Beacon 410 is
in normal operation again.
1. Assemble the calibration kit(s). See the instruction manual for each detector head for
procedures specific to that detector head.
2. While in normal operation, simultaneously press and hold the ENTER and UP/YES
buttons for approximately 3 seconds to enter Calibration Mode. Release the buttons
when the You Have Entered The CALIBRATION Mode... message displays and
asks if you want to continue in the Calibration Menu.
3. If you want to exit Calibration Mode, press and release the DOWN/NO button. The
Beacon 410 will return to normal operation.
If you want to continue in Calibration Mode, press and release the UP/YES button to
continue and display the Select Operation screen. The SET CAL TIMEOUT item will
be displayed.
The next two sections describe how to set the calibration timeout and calibrate the
Beacon 410’s detector heads.
Calibration Timeout Setting
The calibration timeout setting defines the amount of time after the last button push that
the Beacon 410 will remain in Calibration Mode before automatically exiting Calibration
Mode and entering normal operation. If the Beacon 410 exits Calibration Mode because of
the automatic timeout, it will begin it’s warm-up sequence just as it does when it is turned
on.
To view or change the calibration timeout setting, do the following:
1. Navigate to the Select Operation Screen as described in the previous section.
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