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Vanguard Instruments VBT-75 User Manual

Vacuum bottle tester
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Vanguard Instruments Company, Inc.
1520 S. Hellman Ave.
Ontario, California 91761, USA
TEL: (909) 923-9390
FAX: (909) 923-9391
VBT-75
VACUUM BOTTLE TESTER
USER'S MANUAL
March 2015
Revision 1

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Summary of Contents for Vanguard Instruments VBT-75

  • Page 1 VBT-75 VACUUM BOTTLE TESTER USER’S MANUAL Vanguard Instruments Company, Inc. 1520 S. Hellman Ave. Ontario, California 91761, USA TEL: (909) 923-9390 March 2015 FAX: (909) 923-9391 Revision 1...
  • Page 2 Operating Voltage: The VBT-75 is rated for use with an operating voltage of 120V or 240V, auto-ranging ±10% of selected voltage. Power Cord: The VBT-75 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.

  • Page 3: Table Of Contents

    Changing Test Parameters ..................... 11 LIST OF TABLES Table 1. VBT-75 Technical Specifications ..................3 Table 2. Functional Descriptions of VBT-75 Controls and Indicators ..........5 LIST OF FIGURES Figure 1. VBT-75 Controls and Indicators ..................4 Figure 2. VBT-75 Connection Diagram .................... 6...

  • Page 4: Conventions Used In This Document

    This document uses the following conventions: [KEY] [SWITCH] • A key or switch on the VBT-75 is indicated as • Screen and menu names are referenced as “SCREEN/MENU NAME”. • VBT-75 LCD screen output is shown as: DISPLAY TEXT LINE 1 DISPLAY TEXT LINE 2 •...

  • Page 5: Introduction

    VOLTAGE” LED light. For additional operator safety, an “ARM” switch must be held down during testing. The VBT-75 features a back-lit LCD screen (16 characters by 2 lines) that is viewable in both bright sunlight and low-light levels. A turn-and-press knob is used to control the unit. An RS- 232C interface port is provided for factory calibration and diagnostic testing.

  • Page 6: Technical Specifications

    REV 1 VBT-75 USER’S MANUAL Technical Specifications Table 1. VBT-75 Technical Specifications TYPE Portable 75 kV vacuum bottle tester Dimensions: 17”W x 10.5”H x 6.5” D (42.7 cm x 26.9 cm x 16.5 cm) PHYSICAL SPECIFICATIONS Weight: 10 lbs. (4.53 Kg)

  • Page 7: Vbt-75 Controls And Indicators

    REV 1 VBT-75 Controls and Indicators The VBT-75’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-75.

  • Page 8: Table 2. Functional Descriptions Of Vbt-75 Controls And Indicators

    REV 1 VBT-75 USER’S MANUAL Table 2. Functional Descriptions of VBT-75 Controls and Indicators Item Panel Markings Functional Description Number HIGH VOLTAGE High voltage cable connector RS-232C RS-232C interface port for factory calibration and diagnostics Back-lit LCD screen (2 lines x 16 characters). Visible in bright sunlight and low-light levels.

  • Page 9: Cable Connections

    REV 1 CABLE CONNECTIONS The VBT-75 comes furnished with one 10-foot (3.05m) high voltage cable and one 10-foot voltage return cable. Both cables are terminated with alligator clamps that are used to connect to the vacuum bottle being tested. A typical cable connection is shown in Figure 2 below.

  • Page 10: Operating Procedures

    REV 1 VBT-75 USER’S MANUAL OPERATING PROCEDURES Set the Date and Time Follow the steps below to set the date and time for the VBT-75's internal clock: a. Start from the "START-UP" menu: MAIN: <RUN TEST> 14:16:15 [CONTROL KNOB] Turn the until the following screen is displayed: MAIN: <UTIL>...

  • Page 11: Changing The Lcd Screen Contrast

    VBT-75 USER’S MANUAL REV 1 Changing the LCD Screen Contrast Follow the steps below to adjust the VBT-75's LCD screen contrast: a. Start from the "START-UP" menu: MAIN: <RUN TEST> 14:16:15 [CONTROL KNOB] Turn the until the following screen is displayed: MAIN: <CONTRAST>...

  • Page 12: Performing A Test

    If you are performing a test for the first time since the unit has been turned on, you will be prompted for the test duration time, test voltage, and test threshold. If you have already performed a test since the unit has been turned on, the VBT-75 will use NOTE the test parameters from the first test.
  • Page 13 [ARM SWITCH] Press and hold the red g. The VBT-75 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: 9.9KV...

  • Page 14: Changing Test Parameters

    VBT-75 USER’S MANUAL Changing Test Parameters The first time you perform a test after turning on the VBT-75, you will be prompted for the test duration time, test voltage, and test threshold. The VBT-75 will use these settings for performing subsequent tests. Follow the steps below to select different test parameters: a.
  • Page 15 1520 S. Hellman Ave • Ontario, CA 91761 • USA Phone: 909-923-9390 • Fax: 909-923-9391 www.vanguard-instruments.com Copyright © 2015 by Vanguard Instruments Company, Inc. VBT-75 User’s Manual • Revision 1.0 • March 3, 2015 • TA...

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