Vanguard ATRT-01_01B_01D - Manual (Page 11)

Model ATRT-01 (v) Operating Instructions
Rev 02
May 02, 2002
10
10.0 ATRT-01 Power Switch Configurations
10.1 ATRT-01 Power Turn On/Off
The ATRT-01 is powered by ac line voltage only. The power is turned on and off with a power
switch that is built into the power receptacle (see item 4 of Figure 7-0).
10.2 ATRT-01B Power Turn On/Off
The ATRT-01B is turned on or off by pressing POWER (see item 6 on Figure 8-0), on the front
panel, for 2 seconds, then releasing the switch.
10.3. ATRT-01D Power Turn On/Off
The ATRT-01D is turned on or off by pressing the POWER switch (see item 5 on Figure 9-0), on
the front panel, for 2 seconds, then releasing the switch.
11.0 ATRT-01B Charger Indicator
The CHARGE indicator is an LED that lights while the ATRT-01B battery is charging.
12.0 ATRT-01 LCD Control
12.1. Contrast Control
To Darken the LCD display, press and hold the “
?
Contrast” switch for two seconds; to lighten
the LCD display, press and hold the “
?
Contrast” switch for two seconds.
12.2. Display Back-light Control
The ATRT-01 display is back-lighted. This light turns off after 30 seconds of operation to
conserve power. To re-light the display, press any key on the keypad.
13.0 ATRT-01 RS-232C Computer-Control port
The ATRT-01 can be controlled remotely via an RS-232C port. The ATRT-01 computer control
must be enabled before it can be controlled via the RS-232C port. (Refer to paragraph 24.0 for
procedures to enable the interface control.)
14.0 IBM PC Transformer Analysis Software
IBM PC Transformer Analysis Software is delivered with each ATRT-01. This software allows
the user to test transformer turns ratio via a PC. Test results may be saved and run later in a shop
or an office environment. Such test-result records may also be saved in any user-specified database
or archival records.