Topcon GR-5 - Surveying while Charging; Changing the Batteries while Surveying; Using an Auxiliary Power Source

Maintenance
Topcon GR-5 Quick Start Guide
54
LED blinks orange. Once the file system is successfully
remounted, the REC LED stops blinking and the deleted
files will appear in the list of existing files.
NOTICE
NOTICE
In this mode, only the deleted file(s) will
display.
To restore the file system to its normal state, select Mode of
operationNormal.
Activating Sleep Mode
You can put the GR-5 into a dormant state to minimize
power consumption without turning off the receiver
completely. In sleep mode, the power board and Bluetooth
module continue to draw a small amount of power from the
batteries, causing the batteries to slowly drain over time.
1. Turn on the receiver.
2. Press the receiver’s power key for more than four
seconds and less than eight seconds. The STAT LED
will be orange. The receiver enters Sleep Mode.
You can awaken the receiver by turning it on manually or by
sending any number of characters on one of the receiver’s
serial ports.