Vanguard VBT-60 Manual de usuario
OPERATING INSTRUCTIONS
for the
VBT-60/80
Vacuum Bottle Tester
Vanguard Instruments Company
1710 Grevillea Court
Ontario, California 91761
TEL: (909) 923-9390 August 2005
FAX: (909) 923-9391 Rev. 1
http://www.51082245.com
VBT-60/80 Operating Procedures
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SAFETY SUMMARY
NOTICE
This manual applies to Models VBT-60, and VBT-80. The operating procedures are virtually
the same for all models; any differences are clearly described in the step-by-step procedures.
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, or cause errors in the test results; Vanguard Instruments Co.,
Inc. assumes no liability for unsafe or improper use of the VBT.
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.
Do Not Modify Test Equipment
Because of the risk of introducing unknown hazards, do not install substitute parts or perform
any unauthorized modification to any Model VBT Test unit. To ensure that all designed safety
features are maintained, it is recommended that repairs be performed only by Vanguard
Instruments Co. factory personnel or by an authorized repair service. Unauthorized
modifications can cause serious safety hazards and will nullify the manufacturer's warranty.
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Table of Contents
1.0 INTRODUCTION ...............................................................................................................6
1.1 Applicability .....................................................................................................................6
1.2 General Description...........................................................................................................6
1.3 Functional Description ......................................................................................................6
1.4. Furnished Test Accessories ..............................................................................................6
2.0 VBT SPECIFICATIONS .....................................................................................................8
2.1 VBT-60 Specifications......................................................................................................8
2.2 VBT-80 Specifications......................................................................................................9
3.0 CONTROL AND DISPLAY..............................................................................................10
3.1 VBT-60 Front Panel........................................................................................................10
3.2. VBT-80 Front Panel.......................................................................................................12
4.0 VBT-60/80 IMPORTANT FEATURES.............................................................................14
4.1 Operating Voltages..........................................................................................................14
4.2 VBT-60/80 Serial Interface .............................................................................................14
5.0 CABLE CONNECTION....................................................................................................15
6.0 OPERATING PROCEDURES...........................................................................................16
6.1 0 Preparations..................................................................................................................16
6.1.1 Setup and Run Test Procedure......................................................................................16
6.1.2. Repeat Test Procedure.................................................................................................17
6.1.3. Change VBT Test Duration, Test Voltage and Test Current Threshold........................18
6.1.4. Set VBT Clock............................................................................................................19
6.1.5. Set VBT LCD Contrast ...............................................................................................19
6.1.5 VBT Test PASS Display...............................................................................................20
6.1.6 VBT Test FAIL Display...............................................................................................20
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List of Figures
Figure 1. High voltage cable ......................................................................................................7
Figure 2. High Voltage return cable ...........................................................................................7
Figure 3. VBT-60 Control-Panel Controls and Display.............................................................10
Figure 4. VBT-80 Control-Panel Controls and Display.............................................................12
Figure 5. VBT-60 Connection Diagram 1.................................................................................15
Figure 6. VBT-80 Connection Diagram 2.................................................................................15
Figure 7. “PASS” Message ......................................................................................................20
Figure 8. “FAIL” Message.......................................................................................................20
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List of Tables
Table 1.0. VBT-60 Specifications ..............................................................................................8
Table 2.0. VBT-80 Specifications ..............................................................................................9
Table 3.0. Functional Description of VBT-60 Controls and Display.........................................11
Table 4.0 Functional Description of VBT-80 Controls and Display..........................................13
Table 5. Setup and Run Test Procedure....................................................................................16
Table 6. Repeat Test Procedure................................................................................................17
Table 7. Set VBT Test Duration, Voltage, Current...................................................................18
Table 8. Set VBT Clock...........................................................................................................19
Table 9. Set VBT LCD Contrast ..............................................................................................19
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1.0 INTRODUCTION
1.1 Applicability
This manual applies to the Model VBT-60™ and Model VBT-80™ (hereafter, VBT), made by
Vanguard Instruments Company, Inc.
1.2 General Description
The VBT-60 and VBT-80 are light-weight DC vacuum bottle testers made by Vanguard
Instruments Company. The VBT tests the vacuum bottle integrity by applying a DC voltage
across the bottle under test. A simple “PASS” or “FAIL” message indicates the condition of the
bottle after each test. The VBT is field-portable, rugged, and is easily operated by first-time users
having a minimum of training. It features a “Turn-then-Press” control knob for entering test
parameters and control functions.
Turning the knob scrolls through a menu of possible options (which display in sequence) and
pressing the knob activates the selected function
A 2-line by 16-character LCD alpha/numeric readout is used for displaying control-option
menus, and test results. The operation requires little more than connecting test leads to the
vacuum bottle, selecting the desired test voltage and test duration.
1.3 Functional Description
Using a voltage multiplier, the VBT-60 generates a programmable test voltage from 10,000 V dc
to 60,000 V dc (or 10,000 V dc to 80,000 for VBT-80) with 5,000 V dc steps.
The test voltage can be applied at different time durations: 5 seconds, 10 seconds, 30 seconds, 1
minute, or 2 minutes. Test current is monitored by the VBT electronics during test. If this test
current exceeds a preset threshold, the test is terminated and a test “FAIL” message is displayed.
The over-current threshold is programmable at 100 micro-amps, or 200 micro-amps, or 300
micro-amps.
A “FAIL” message will be displayed on the LCD and “TEST FAIL” indicator will be
illuminated on the front panel.
A test is considered successful if the selected test voltage was applied for the full test duration
and the test current did not exceed the preset threshold.
The VBT’s LCD displays “PASS” message along with the test voltage and test duration if a test
is successful.
1.4. Furnished Test Accessories
The VBT is supplied with one 10-foot long high-voltage test cable, one 10-foot long voltage-
return lead with alligator clamps. A Ground cable, power cord and a shipping case are also
included with each VBT.
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Figure 1. High voltage cable
Figure 2. High Voltage return cable
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2.0 VBT SPECIFICATIONS
2.1 VBT-60 Specifications
VBT-60 specifications and leading particulars are listed in Table 1.0.
Table 1.0. VBT-60 Specifications
MODEL.......................VBT-60
TYPE............................Special-Purpose Test Equipment, portable 60 kV vacuum bottle tester
SIZE (inches)..............16.8 W by 3.5 H by 10.6 D (42.7 cm by 8.9 cm by 26.9 cm)
WEIGHT.......................10 pounds (4.53 Kg)
INPUT POWER...........2 amps, 90-240 Vac, 50/60 Hz
OUTPUT VOLTAGE...10kV to 60kV dc in 5,000 volt steps
OUTPUT RIPPLE
VOLTAGE....................3% max
DISCHARGE TIME.....Maximum discharge time for internal high voltage is 0.3 seconds
DISPLAY......................Backlit LCD, 2-lines by 16 characters
INDICATORS .............Test failure indicator: LED is turned on if test current exceeds
the preset current threshold (100?A, 200?A or 300?A).
High Voltage Enable Indicator: LED is turned on when high voltage
is present at high voltage cable.
CONTROL...................Single knob selector (turn-and-press selection)
COMPUTER
INTERFACE ................RS-232C port, 19,200 Baud (Factory Calibration and Diagnostic)
ENVIRONMENT..........Operating: -10°C to 55°C (15?F to +122?F)
Storage: -30°C to 70°C (-22?F to +158?F)
FURNISHED ITEMS...One power cord, one ground cable, one 10-ft. high-voltage cable,
One 10-ft. high-voltage return cable.
OPTIONS ...................Transportation case included
WARRANTY................One-Year Parts & Labor (Post-Warranty Service Contracts Available)
VBT-60 SPECIFICATIONS ARE SUBJECT TO UPGRADES AND MAY BE CHANGED WITHOUT PRIOR NOTICE.
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2.2 VBT-80 Specifications
VBT-80 specifications and leading particulars are listed in Table 2.0
Table 2.0. VBT-80 Specifications
MODEL.......................VBT-80
TYPE............................Special-Purpose Test Equipment, portable 80 kV vacuum bottle tester
SIZE (inches)..............16.8 W by 3.5 H by 10.6 D (42.7 cm by 8.9 cm by 26.9 cm)
WEIGHT.......................10 pounds (4.53 Kg)
INPUT POWER...........2 amps, 90-240 V ac, 50/60 Hz
OUTPUT VOLTAGE...10 kV to 80 kV dc in 5,000-volt steps
OUTPUT RIPPLE
VOLTAGE....................3% max
DISCHARGE TIME.....Maximum discharge time for internal high voltage is 0.3 seconds
DISPLAY......................Backlit LCD, 2-lines by 16 characters
INDICATORS .............Test failure indicator: LED is turned on if test current exceeds
the preset current threshold (100?A, 200?A or 300?A).
High Voltage Enable Indicator: LED is turned on when high voltage
is present at high voltage cable.
CONTROL...................Single knob selector (turn-and-press selection)
COMPUTER
INTERFACE ................RS-232C port, 19,200 Baud (Factory Calibration and Diagnostic)
ENVIRONMENT..........Operating: -10°C to 55°C (15?F to +122?F)
Storage: -30°C to 70°C (-22?F to +158?F)
FURNISHED ITEMS...One power cord, one ground cable, one 10-ft. high-voltage cable,
One 10-ft. high-voltage return cable.
OPTIONS ...................Transportation case included
WARRANTY................One-Year Parts & Labor (Post-Warranty Service Contracts Available)
VBT-80 SPECIFICATIONS ARE SUBJECT TO UPGRADES AND MAY BE CHANGED WITHOUT PRIOR NOTICE.
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3.0 CONTROL AND DISPLAY
3.1 VBT-60 Front Panel
The VBT-60 controls and displays are shown in Figure 3. Pointing leader lines reference each
item with an index number. Each index number is cross-referenced to a functional description in
Table 3, which describes the function and purpose of each item on the control panel. Although
the purpose of these controls and the display may seem obvious and intuitive, users should
become familiar with them before attempting to use the VBT-60. First-time users should also
review and become familiar with the Safety Summary on the front page.
Figure 3. VBT-60 Control-Panel Controls and Display
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