Vanguard ATRT-03_03B S2 User Manual
Page 13

REV 2 ATRT-03 S2, ATRT-03A S2, AND ATRT-03B S2 USER’S MANUAL
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Table 4. Functional Descriptions of ATRT-03 S2 Controls and Indicators
Item
Number
Panel Markings
Functional Description
1
EMERGENCY
TURN OFF
“PUSH”
Emergency turn-off test voltage switch.
2
Back-lit LCD screen (62 x 128 dot graphic), viewable in bright sunlight
and low-light levels.
3
H
H voltage connector.
4
USB
MEM
USB Flash drive interface port.
5
X
X voltage connector.
6
LTC
CONTROL
Load Tap Changer controller connector.
7
4.5-inch wide thermal printer.
8
120-240 Vac, 2A, 50-60Hz
Fuse: 250Vac, 5A Fast-Blow
Input power connector and fused power switch with third-wire safety
ground.
9
GROUND
Ground stud for connecting to sub-station ground.
10
CHANGE
“PUSH”
TO SELECT
Control knob. You can scroll through menu items by turning the
control knob. A highlighted menu item can be selected by pushing the
control knob.
11
LTC
CONTROL
Load Tap Changer control buttons.
12
Rugged alpha-numeric keypad.
13
TEST
IN
PROGRESS
This LED flashes in response to commands or when a test voltage is
applied to the test transformer.
14
RS-232C
RS-232C PC interface connector.
15
USB
PC
USB PC interface connector.