Viewing and resetting min/max readings, Battery charging (optional) – RKI Instruments Beacon 110 User Manual
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Beacon 110 Operator’s Manual
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If the Beacon 110 goes into a fail condition, the signal output is fixed below 2.4 mA
until the fail alarm is cleared.
Viewing and Resetting Min/Max
Readings
The reset switch may be used to view and reset the minimum and maximum gas readings.
NOTE:
Minimum and maximum readings are reset if the instrument is turned off.
1.
While the Beacon 110 is in normal operation, press and hold the reset switch button
for 5 seconds.
2.
The display will indicate the minimum reading on the bottom display line and the
maximum reading on the top display line for about 3 seconds before indicating
<RESET> TO CLEAR.
3.
To return to normal operation without resetting the minimum and maximum readings,
do not press the reset switch button and allow the unit to return to normal operation. It
will return to normal operation in about 5 seconds.
To reset the minimum and maximum readings, press and hold the reset switch button
while the <RESET> TO CLEAR message is on the display until the display indicates
Min/MAX Is RESET. Release the reset switch button.The unit will then return to
normal operation in about 5 seconds.
Battery Charging (Optional)
The Beacon 110 has an optional backup battery charging feature. In order for this feature
to be included, the Beacon 110 must be ordered with this feature. Consult RKI
Instruments, Inc. for ordering information.
The battery charging circuit is designed to charge lead acid type batteries. If AC power is
used as primary power and a backup battery is connected to the Beacon 110’s EXT DC/
24V BATT terminals as shown in Figure 8, the battery charging feature will charge the
battery if it is depleted and keep it charged with a charge current of approximately 100 mA.
CAUTION:
When a battery is used as backup power and the charging feature is
included in the Beacon 110, do not use a non-rechargeable battery or
backup battery that has a charging feature. Use RKI backup battery 49-
8102RK or an appropriately rated 24 VDC rechargeable lead acid type
battery.