6
Low Battery Indication
When approximately six hours of operating time remain in
standby mode, the SuperCell
TM
will display a plug icon on
the display status screen. The power-on tones are not emit-
ted when SuperCell
TM
has a low battery. Low battery is also
indicated by the Operational Status LED changing to a peri-
odic Red strobe. A double chirp sounds once every five min-
utes with audio enabled.
Warning: There are no audible
low battery sounds with audio tones disabled.
When low battery is indicated, the battery should be re-
charged as approximately three hours of operating time
remain. The Rechargeable lithium battery is not user
replaceable.
With the charger provided, recharge time is approximately
six hours, from a low battery warning, and nine hours for
a dead battery. Due to current limits imposed by Intrinsic
Safety requirements, a unit that has gone completely dead
will have to be removed from the charging base and rein-
serted when the charging light turns red. Typical operation
time between recharging is approximately eighty hours in
standby/ready mode.
SuperCell
TM
Charging
Plug Charger into outlet. It takes about twenty seconds for
the Green charger LED to come on. If it does not come on,
or a Red LED comes on, it indicates the battery is to hot or
cold, or has some other fault.
Charging is completed when the green charge LED starts to
slowly flash.
When used in conjunction with other compatible Grace Lone
Worker products, a complete system test may be initiated
by pressing and holding the Select button for three seconds.
After Select has been held for three seconds a Link Query
message is transmitted, and the SuperCell
TM
display shows
a round trip timer, used to measure the complete system
path test time:
System Test Screen
The display will show the following when a Link Status mes-
sage is received, in conjunction with a power-up sound
sequence:
System Test Successful Screen
If no Link Status Acknowledgment message is received after
five minutes, this will be indicated via a simple audio beep
and a message similar to the one below:
System Test Timed Out Screen
Note: The complete system path may contain items beyond
the control of Grace Industries, such as satellite delays. Sys-
tem Test times could vary considerably.
Mobile Lone Worker Applications
SC500-OR with Out of Range Notification
The SC500-OR is similar to the standard SC500 in most
respects but with the added feature of notifying the user
when they have exceeded the effective signaling range of a
compatible MX900 transceiver. The MX900 transceiver, with
Charging
Base
which the SC500-OR is to be used, must have its Ping fea-
ture turned ON. The two devices operate as a system where-
by the MX900 unit (with its PING feature turned on) will echo
back a normal on-mode polling signal that is received from a
Grace Industries SC500-OR two-way signaling device. The
SC500-OR device will receive the echo of its own on-mode
polling signal (sent from the MX900) and resets the Out-of-
Range Notification timer. If the echoed signal sent from the
MX900 is not received, or conversely the MX900 does not
receive a polling signal from the SC500-OR within approxi-
mately 3 minutes, an audible warning sound will activate on
the SC500-OR indicating the effective range of the system
has been exceeded. This audible Out-of-Range notification
(a bell-like, double-chirping sound) will occur approximately
every 30-40 seconds until the signal link between the SC500-
OR and MX900 is re-established.
System Link Test
12VAC Charger
Adapter
System Test Sent Screen
AM16
System Test
Hold Select 3Sec
System Test Sent
Successful
System Test
Timed Out
System Test Sent
Trip Time: 0027
