Vanguard ATRT-01_01B S3 - Manual (Page 13)

REV 1 ATRT-01/01B S3 USER’S MANUAL
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2.0 PRE-TEST SETUP
2.1 ATRT-01 S3 Operating Voltage
The ATRT-01 S3 can be operated from 120 Vac or 240 Vac. The power voltage can be set using
the voltage selector switch on the front panel (see Figure 1, item #5)
2.2 ATRT-01B S3 Operating Power
The ATRT-01B S3 is powered by a rechargeable (6 Vdc / 7 AH) sealed lead acid gel battery. The
unit can operate continuously for up to 6 hours between charges. It can also be used while
charging. Plugging the ATRT-01B S3 into an ac power outlet after the battery is fully charged will
not damage the battery.
NOTES
• It is recommended that the ATRT-01B S3 be plugged into an ac outlet when it is
not in use.
• The ATRT-01B S3 uses the Genesis model NP7-6 battery. It can also be replaced
with the Panasonic model LC-R122R2PU battery.
2.3 LCD Screen Contrast Control
To increase the LCD screen contrast, press and hold the [∧ Contrast] key for two seconds.
Release the button when the desired contrast level has been reached.
To decrease the LCD screen contrast, press and hold the [∨ Contrast] key for two seconds.
Release the button when the desired contrast level has been reached.
For the ATRT-01B S3, the back-light turns off after 30 seconds of operation to conserve power.
Press any key on the keypad to re-light the back-light.