User's Manual

Battery Life and Replacement Operation and Maintenance of the RF Sensor System • 23
7.2.1. Internal Clean Switch
For sensor models equipped with "Clean"
buttons, press and hold the Clean button for 3
seconds to switch the sensor from Normal mode
to Clean mode. After 3 seconds, the sensor LED
should start flashing to indicate Clean mode is
active.
While the sensor is in Clean mode, pressing
and holding the Clean button again for 3 seconds
will switch the sensor back into Normal mode.
The LED should no longer flash when the sensor
has successfully switched to Normal mode.
7.2.2. External Clean Switch
An externally wired clean switch may be
either a push button or a static switch. If the
clean switch is a push button, press and hold the
button for 3 seconds to switch from Normal to
Clean mode. To switch from Clean mode back to
Normal mode, press and hold the button for 3
seconds.
If the clean switch is a static switch, the sen-
sor will go into Clean mode when the switch is
in the CLOSED position for longer than 3 sec-
onds. Clean mode will end when the switch is
returned to the OPEN position.
Like the internal clean switch, the sensor’s
LED will flash once per three seconds when in
Clean mode.
7.3. Battery Life and Replace-
ment
The battery life of an RF Sensor depends on
the frequency of transmission. Sensors config-
ured to transmit once every three minutes (the
factory default) will have a battery life of seven
years, while sensors configured to transmit once
every 40 seconds will have a battery life of three
years.
Batteries may be replaced by opening the
sensor enclosure, removing the battery from the
circuit board, and replacing it with a new battery.
The battery is a special low-temperature battery
available from CPC (P/N 119-5101) — DO NOT
USE ANY OTHER REPLACEMENT BATTERY.
7.3.1. Reactivating the RF Sensor
After removing and replacing the battery, the
sensor will revert back to Sleep mode and will
need to be reactivated. Refer to Section 4.2.,
Activation, for information about how to acti-
vate an RF Sensor.
7.4. Viewing Status Using the
Hand-Held Terminal
For troubleshooting purposes, the RF Gate-
way allows you to view the temperature and dig-
ital input values of all commissioned RF Sensors
with the Hand-Held Terminal.
1. Plug the Hand-Held Terminal into the HHT
jack on the RF Gateway. The HHT should
power up and display the opening screen.
2. Press the DOWN ARROW key to display
the Options menu.
3. Press the RIGHT ARROW, and press 2 to
view temperatures in degrees Fahrenheit or 3
to view temperature in degrees Celsius. Press
DOWN ARROW twice to navigate to the
Enter Starting Board Address screen.