Vanguard Instruments VBT-75P S2 User manual

VBT-75P S2
VACUUM BOTTLE TESTER
USER’S MANUAL
Vanguard Instruments Company, Inc.
1520 S. Hellman Ave.
Ontario, California 91761, USA
TEL: [phone]
FAX: [phone]
July 2017
Revision 1.0

VBT-75P S2 USER’S MANUAL REV 1.0
i
SAFETY SUMMARY
FOLLOW EXACT OPERATING PROCEDURES
Any deviation from the procedures described in this operator’s manual may create one or more safety hazards,
damage the VBT-75P S2, or cause errors in the test results; Vanguard Instruments Co., Inc. assumes no liability for
unsafe or improper use of the VBT-75P S2. The following safety precautions must be observed during all phases of
test set up, test hookups, testing, and test-lead disconnects.
SAFETY WARNINGS AND CAUTIONS
This device shall be used only by trained operators. All circuit breakers under test shall be off line and fully
isolated.
SERVICE AND REPAIR
• Do not install substitute parts or perform any unauthorized modification to any VBT-75P S2 test unit.
• Repairs must be performed only by Vanguard Instruments Company factory personnel or by an authorized
repair service provider. Unauthorized modifications can cause safety hazards and will void the manufacturer’s
warranty.
EQUIPMENT RATINGS
IP Rating: The enclosure for the VBT-75P S2 has an IP rating of 32.
Pollution Degree: The VBT-75P S2 has a pollution rating of 2.
Operating Voltage: The VBT-75P S2 is rated for use with an operating voltage of 120V or 240V, auto-ranging ±10%
of selected voltage.
Power Cord: The VBT-75P S2 is supplied with a 16 AWG, 16A power cord with a NEMA 5-15P plug. Replacement
cable shall have the same or better rating and is available through the manufacturer.
VENTILATION REQUIREMENTS
The VBT-75P S2 must be operated with the enclosure lid open.
SAFETY SYMBOLS
Indicates that caution should be exercised
OR
Indicates location of chassis ground terminal
CLEANING
To clean the VBT-75P S2:
• Disconnect all cables and turn the unit off.
• Use a soft, lint-free cloth to wipe all surfaces clean.
• Avoid getting moisture in openings and connectors.
• Don't use any cleaning products or compressed air.

REV 1.0 VBT-75P S2 USER’S MANUAL
ii
TABLE OF CONTENTS
CONVENTIONS USED IN THIS DOCUMENT ..................................................................................... 1
1.0 INTRODUCTION .................................................................................................................... 2
1.1 General Description and Features ................................................................................... 2
1.2 Printer Paper .................................................................................................................... 3
1.3 Technical Specifications ................................................................................................... 4
1.4 VBT-75P S2 Controls and Indicators ................................................................................ 5
2.0 CABLE CONNECTIONS .......................................................................................................... 7
3.0 OPERATING PROCEDURES ................................................................................................... 8
3.1 Setting the Date and Time ............................................................................................... 8
3.2 Adjusting LCD Screen Contrast ........................................................................................ 8
3.3 Entering Test Record Header Information ....................................................................... 9
3.4 Setting the Preferred Interface Language ..................................................................... 12
3.5 Setting the Option to Print the Calibration Expiration Date .......................................... 13
3.6 Performing a Test ........................................................................................................... 14
3.7 Printing a Directory of Test Records Stored in the VBT-75P S2's Memory ................... 18
3.8 Printing a Directory of Test Records Stored in a USB Flash Drive ................................. 20
3.9 Reviewing a Test Record ................................................................................................ 21
3.10 Saving a Test Record ...................................................................................................... 23
3.11 Restoring a Test Record from the Unit's Internal Memory ........................................... 25
3.12 Restoring a Test Record from a USB Flash Drive ........................................................... 27
3.13 Copying Test Records to a USB Flash Drive ................................................................... 29
3.14 Deleting Test Records from the Unit's Internal Memory .............................................. 31
3.15 Deleting Test Records from a USB Flash Drive .............................................................. 33
3.16 Updating Firmware ........................................................................................................ 35
LIST OF TABLES
Table 1. VBT-75P S2 Technical Specifications ................................................................................. 4
Table 2. Functional Descriptions of VBT-75P S2 Controls and Indicators ...................................... 6
LIST OF FIGURES
Figure 1. VBT-75P S2 Controls and Indicators ................................................................................ 5
Figure 2. VBT-75P S2 Connection Diagram ..................................................................................... 7
Figure 3. Sample Test Results Printout ......................................................................................... 17
Figure 4. Sample Test Record Directory Printout ......................................................................... 19

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VBT-75P S2 USER’S MANUAL REV 1.0
2
1.0 INTRODUCTION
1.1 General Description and Features
The VBT-75P S2 is Vanguard's second generation microprocessor-based, portable 75 kV dc
vacuum bottle tester. This lightweight, portable tester is designed for testing circuit-breaker
vacuum bottles in the field and at the shop.
Test voltages can be selected from 10 kV dc to 75 Kv dc in 1 Kv steps. The high voltage test time
can be set from 5 seconds to 2 minutes. The test voltage is raised to the selected voltage and
held for the test time duration. The test voltage and leakage current are displayed on the LCD
during testing. After the test time duration has elapsed and the leakage current did not pass the
pre-set value of 100 µA, 200 µA, or 300 µA, the test voltage is returned to zero and a “Pass”
message is displayed. If a flash-over condition occurs, such as bottle failure, the test voltage is
immediately turned off, a “Failure” message is displayed on the LCD screen, and the “TEST FAIL”
LED light on the unit is also illuminated.
The presence of high voltage is indicated by an audible tone and an illuminated “HIGH
VOLTAGE” LED light. For additional operator safety, an “ARM” switch must be held down during
testing.
The VBT-75P S2 features a back-lit LCD screen (20 characters by 4 lines) that is viewable in both
bright sunlight and low-light levels. A rugged, 16-key, membrane keypad is used to control the
unit. Test results can be printed on the built-in 2.5" wide thermal printer.
The VBT-75P S2 can store up to 84 records of 16 readings in Flash EEPROM. Test records can be
retrieved and printed on the built-in thermal printer, or they can be transferred to a PC via the
unit’s USB Flash drive port. The VBT-75P S2's firmware can also be updated in the field via the
same USB Flash drive port. Windows-based Vanguard Universal Software (VUS) is provided with
each unit. Using this software, test records can be retrieved from the VBT-75P S2 and then
stored on the PC for future analysis and report generation. Additionally, test records can be
exported in PDF, Excel, and XML formats.
The VBT-75P S2 is furnished with a 10-foot test cable that is terminated with a quick-disconnect
test clip. A transportation case is also included.

REV 1.0 VBT-75P S2 USER’S MANUAL
3
1.2 Printer Paper
The VBT-75P S2's built-in thermal printer uses 2.5-inch wide thermal paper for printing test
results. To maintain the highest print quality and to avoid paper jams, the use of thermal paper
supplied by Vanguard Instruments Company is highly recommended. Additional paper can be
ordered from the following sources:
Vanguard Instruments Co, Inc.
1520 S. Hellman Avenue
Ontario, CA 91761
Tel: [phone]
Fax: [phone]
Part Number: VIC TP-3 paper
BG Instrument Co.
13607 E. Trent Avenue
Spokane, WA 99216
Tel: [phone]
Fax: [phone]
Part Number: VIC TP-3 paper

1.3
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Specificatio
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REV 1.0 VBT-75P S2 USER’S MANUAL
5
1.4 VBT-75P S2 Controls and Indicators
The VBT-75P S2’s controls and indicators are shown in Figure 1 below. A leader line with an
index number points to each control and indicator, which is cross-referenced to a functional
description in Table 2. The table describes the function of each item on the control panel. The
purpose of the controls and indicators may seem obvious, but users should become familiar
with them before using the VBT-75P S2. Accidental misuse of the controls will usually cause no
serious harm. Users should also be familiar with the safety summary found on the front page of
this User’s Manual.
Figure 1. VBT-75P S2 Controls and Indicators

VBT-75P S2 USER’S MANUAL REV 1.0
6
Table 2. Functional Descriptions of VBT-75P S2 Controls and Indicators
Item
Number Panel Markings Functional Description
1 HIGH VOLTAGE High voltage cable connector
2 Built-in 2.5" wide thermal printer
3 USB MEM USB Flash drive port
4 Input power connector with built-in fuse holder and power switch
5 PUSH TO
"ARM"
Arm switch; press and hold during testing.
6 TEST
FAILED
Test failure indicator. This indicator turns on if the test current exceeds the
present current threshold (100, 200, or 300 μA).
7 Back-lit LCD screen (20 characters x 4 lines)
8 HIGH VOLTAGE
ENABLED
This indicator turns on when high test voltage is present at the test leads.
9 Rugged membrane keypad
10 GROUND High voltage return cable connector
11 GROUND VBT ground stud. Connect ground stud to substation ground using the provided
cable.

REV 1.0
7
2.0
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The VBT
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voltage
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to the va
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VBT-75P
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rcuit break
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cuum bottl
Figu
r
M
ANUAL
T
IONS
d
with one 1
s
are termin
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B
T-75P S2 ag
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ground st
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t
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P
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5
ated with a
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d
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olated.
position.
m
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2 below.
ion, always
o
ot
n
ect

VBT-75P S2 USER’S MANUAL REV 1.0
8
3.0 OPERATING PROCEDURES
3.1 Setting the Date and Time
Follow the steps below to set the date and time for the VBT-75P S2's internal clock:
a. Start from the "START-UP" menu:
Press the [2] key (SETUP).
b. The following screen will be displayed:
Press the [2] key (SET TIME).
c. The following screen will be displayed:
Enter the date and time using the membrane keypad. The date and time will be set and
you will be returned to the "START-UP" menu.
3.2 Adjusting LCD Screen Contrast
To adjust the LCD screen contrast, press and hold either the [] key to increase the contrast or
the [] key to decrease the contrast. Release the key once the desired screen contrast has
been achieved.
ENTER
MM-DD-YY HH:MM:SS
_
1.ENTER SHOT ID
2.SET TIME
3.SET LANGUAGE
4.CAL PRINT ON/OFF
1.RUN TEST 07/10/17
2.SETUP 11:01:00
3.RECORDS
CABLE VTG: 0V

REV 1.0 VBT-75P S2 USER’S MANUAL
9
3.3 Entering Test Record Header Information
You can enter the test record header information before performing tests. The record header
includes identifying information such as the company, station, circuit, manufacturer, etc. Once
the header information has been set, it will apply to all subsequent test records. Follow the
steps below to enter the test header information:
a. Start from the "START-UP" menu:
Press the [2] key (SETUP).
b. The following screen will be displayed:
Press the [1] key (ENTER SHOT ID).
c. The following screen will be displayed:
Type the company name using the keypad.
When pressing a key, the corresponding number on the key will be displayed first.
Pressing the key again will display the first letter on the key. Pressing the key again will
display the second letter on the key. For example, to type the letter “A”, you must press
the [2] key twice. To erase the character at the cursor position, press the [CLEAR] key.
Press the [] key to move to the next character. Press the [] key to move to the
previous character. Press the [ENTER] key when you are done typing.
d. The following screen will be displayed:
Type the station name using the keypad and then press the [ENTER] key.
STATION:
_
(TO POSITION)
COMPANY:
_
(TO POSITION)
1.ENTER SHOT ID
2.SET TIME
3.SET LANGUAGE
4.CAL PRINT ON/OFF
1.RUN TEST 07/10/17
2.SETUP 11:01:00
3.RECORDS
CABLE VTG: 0V

VBT-75P S2 USER’S MANUAL REV 1.0
10
e. The following screen will be displayed:
Type the circuit information using the keypad and then press the [ENTER] key.
f. The following screen will be displayed:
Type the manufacturer name using the keypad and then press the [ENTER] key.
g. The following screen will be displayed:
Type the model information using the keypad and then press the [ENTER] key.
h. The following screen will be displayed:
Type the serial number using the keypad and then press the [ENTER] key.
i. The following screen will be displayed:
Enter the KVA value using the keypad and then press the [ENTER] key.
KVA:
_
(TO POSITION)
SERIAL NUMBER:
_
(TO POSITION)
MODEL:
_
(TO POSITION)
MANUFACTURER:
_
(TO POSITION)
CIRCUIT:
_
(TO POSITION)

REV 1.0 VBT-75P S2 USER’S MANUAL
11
j. The following screen will be displayed:
Type the operator’s name using the keypad and then press the [ENTER] key. All
header information will be saved, and you will be returned to the “START-UP” menu.
OPERATOR:
_
(TO POSITION)

VBT-75P S2 USER’S MANUAL REV 1.0
12
3.4 Setting the Preferred Interface Language
Follow the steps below to set the preferred language for the VT-75P S2's interface (English,
Turkish, and Spanish are supported):
a. Start from the "START-UP" menu:
Press the [2] key (SETUP).
b. The following screen will be displayed:
Press the [3] key (SET LANGUAGE).
c. The following screen will be displayed:
Select the preferred language by pressing the corresponding number on the keypad.
d. A confirmation message will be displayed as shown below:
Press any key to return to the "START-UP" menu. Menu items and messages will now be
displayed in the selected language.
ENGLISH SET
1.ENGLISH
2.TURKISH
3.SPANISH
1.ENTER SHOT ID
2.SET TIME
3.SET LANGUAGE
4.CAL PRINT ON/OFF
1.RUN TEST 07/10/17
2.SETUP 11:01:00
3.RECORDS
CABLE VTG: 0V

REV 1.0 VBT-75P S2 USER’S MANUAL
13
3.5 Setting the Option to Print the Calibration Expiration Date
The VBT-75P S2 can print the unit's factory calibration expiration date at the bottom of test
reports if desired. Follow the steps below to configure this option:
a. Start from the "START-UP" menu:
Press the [2] key (SETUP).
b. The following screen will be displayed:
Print the [4] key (CAL PRINT ON/OFF).
c. The following screen will be displayed:
1. Press the [1] key to enable the option. The following screen will be displayed:
The calibration date printing option will be enabled and you will be returned to
the "START-UP" menu.
2. Press the [2] key to disable the option. The following screen will be displayed:
Press any key to return to the "START-UP" menu.
CAL DATE PRINTING
DISABLED.
CAL DATE PRINTING
ENABLED.
CAL DATE PRINTING:
1.ENABLE
2.DISABLE
1.ENTER SHOT ID
2.SET TIME
3.SET LANGUAGE
4.CAL PRINT ON/OFF
1.RUN TEST 07/10/17
2.SETUP 11:01:00
3.RECORDS
CABLE VTG: 0V

VBT-75P S2 USER’S MANUAL REV 1.0
14
3.6 Performing a Test
Follow the steps below to perform a test:
a. Start from the “START-UP” menu:
Press the [1] key (RUN TEST).
b. The following screen will be displayed:
Select the test time by pressing the corresponding number on the keypad. For this
example, we will use the 5 second test time by pressing the [1] key.
c. The following screen will be displayed:
Type the desired test voltage using the numeric keypad and then press the [ENTER]
key.
d. The following screen will be displayed:
Select the leakage current limit by pressing the corresponding number on the keypad.
For this example, we will select 300μA by pressing the [1] key.
e. The following screen will be displayed summarizing the test parameters:
Press the [ENTER] key to confirm the test parameters.
TEST PARAMETERS:
75KV 5Sec 300 μA
"CLEAR TO CHANGE OR
"ENTER" TO CONTINUE
1. 300μA
2. 200μA
3. 100μA
ENTER TEST VOLTAGE:
(10 to 75)
0 KV
1. 5 Sec 2. 10 Sec
3. 30 Sec 4. 60 Sec
5. 2 Min
1.RUN TEST 07/10/17
2.SETUP 13:37:29
3.RECORDS
CABLE VTG: 0V

REV 1.0 VBT-75P S2 USER’S MANUAL
15
f. The following screen will be displayed:
Press and hold the red [PUSH TO "ARM"] switch.
g. The VBT-75P S2 will initiate the test and start the timer based on the test duration
selected. The screen will be updated with the test voltage and the leakage current as
shown below:
h. After the test time duration has elapsed, the test results will be displayed. If the leakage
current did not pass the preset value set in step d, the test voltage is returned to zero
and a "PASS" message is displayed as shown below:
However, if a flash-over condition occurred, such as bottle failure, the test voltage is
immediately turned off and a "FAIL" message is displayed as shown below:
The "TEST FAIL" LED on the front panel will also be illuminated to indicate a test failure.
Release the [ARM SWITCH] and press any key to continue.
i. The following screen will be displayed:
Press the [1] key (YES) to print the test results. A sample test results printout is shown
in Figure 3.
PRINT TEST RESULTS?
1.YES
2.NO
TEST COMPLETE
>>> FAIL <<<
TEST COMPLETE
>>> PASS <<<
TEST IN PROGRESS
74.9KV 186 μA
Time: 00:03
PRESS RED SWITCH
TO START TEST

VBT-75P S2 USER’S MANUAL REV 1.0
16
j. The test results will be printed, and the following screen will be displayed:
Press the [1] key (YES) to keep the test reading.
k. The following screen will be displayed:
Press any key to continue.
l. The following screen will be displayed:
Press the [2] key (NO).
m. The following screen will be displayed:
Press the [1] key (YES) to save the test record.
n. The following screen will be displayed:
Press any key to return to the "START-UP" menu.
RECORD 6 SAVED!
SAVE THIS RECORD?
1.YES
2.NO
RUN ANOTHER TEST?
1.YES
2.NO
TEST SAVED
KEEP THIS READING?
1.YES
2.NO

REV 1.0
17
N
VBT-75P
S
OTE
Th
e
S
2 USER’S
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Fig
e
VBT-75P S
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ANUAL
ure 3. Samp
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ords of 16 r
e
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.