Vanguard VBT-60_80 User Manual
Page 13
VBT-60/80 Operating Procedures
13
Table 4.0 Functional Description of VBT-80 Controls and Display
Figure 1
Index #
Adjacent Panel Marking
Functional Description
1
(Connector)
High-voltage-cable connector
2
RS-232C
RS-232C interface port; 9-pin connector;
female DB type. The data are set to 19,200
baud, 1 start bit, 8 data bits, and no parity bit;
PIN ...............SIGNAL
2 Rx
3 Tx
5 Signal Gnd
This serial port is for factory calibration and
firmware updates
3
90-230 Vac, 8A, 50- 60 Hz
Input power connector with built-in fuse
holder and power switch circuit breaker.
4
GROUND
(Wing Nut)
VBT ground stud. Connect ground stud to
substation ground using the provided cable.
5
No marking
LCD; 2-line by 16-character; back-lighted;
displays menus of selections, operator entries,
and test-measurement results.
6
TEST FAIL
Test Fail Indicator. This indicator lights if the
test current exceeds the preset current
threshold (100, 200, or 300
?
A).
7
CHANGE
SELECT
VBT control knob. Turn knob to desired new
feature. Press knob to select that feature.
8
HIGH VOLTAGE
ENABLE
LED indicator, red; Lights when high-test-
voltage is present at the test leads.
9
PUSH TO
“ARM”
Arm switch; Press and hold during test
10
GROUND
High-voltage-return cable connector.