Vanguard Instruments Company ATO-400P Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Vanguard Instruments Company Manuals
  4. Measuring Instruments
  5. ATO-400P
  6. Operating instructions manual

Vanguard Instruments Company ATO-400P Operating Instructions Manual

Amperes digital micro-ohm meters
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
TEL: (909) 923-9390
FAX: (909) 923-9391
OPERATING INSTRUCTIONS
for the
ATO-400P and ATO-600P
10-400/600 Amperes
Digital Micro-Ohm Meters
Vanguard Instruments Company, Inc.
1710 Grevillea Court
Ontario, California 91761
May 2005
Rev. 1

Advertisement

Table of Contents
loading

Related Manuals for Vanguard Instruments Company ATO-400P

Summary of Contents for Vanguard Instruments Company ATO-400P

  • Page 1 OPERATING INSTRUCTIONS for the ATO-400P and ATO-600P 10-400/600 Amperes Digital Micro-Ohm Meters Vanguard Instruments Company, Inc. 1710 Grevillea Court Ontario, California 91761 TEL: (909) 923-9390 May 2005 FAX: (909) 923-9391 Rev. 1...
  • Page 2 ATO-400P / ATO-600P Operating Procedures SAFETY SUMMARY NOTICE This manual applies to Models ATO-400P, and ATO-600P. 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 ATO, or cause errors in the test results;...

  • Page 3: Table Of Contents

    ATO-400P / ATO-600P Operating Procedures 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 1.5 Optional Accessories......................7 2.0 ATO SPECIFICATIONS .....................9 2.1 ATO-400P Specifications....................9 2.2 ATO-600P Specifications....................10 3.0 CONTROL AND DISPLAY....................11 3.1 ATO-400P Front Panel....................11...
  • Page 4 Figure 1 ATO Current Cable......................7 Figure 2 ATO Sensing cable ......................8 Figure 3 C-Clamp Cable ......................8 Figure 4 ATO-400P Control-Panel Controls and Display ............11 Figure 5 ATO-600P Control-Panel Controls and Display ............13 Figure 6 ATO-400P Connection Diagram ................16 Figure 7 ATO-600P Connection Diagram ................16 Figure 8 START Menu ......................17...
  • Page 5 List of Tables Table 1.0 ATO-400P Specifications ...................9 Table 2.0 ATO-600P Specifications ..................10 Table 3.0 Functional Description of ATO-400P Controls and Display........12 Table 4.0 Functional Description of ATO-600P Controls and Display........14 Table 5.0 Run Test Procedure (Measure an Unknown Resistance) ...........21 Table 6.0 Run Automatic Test Procedure (Measure an Unknown Resistance) ......25...

  • Page 6: Introduction

    DC power supply. A regulated constant-current source outputs the preset current selected by the user. The DC test current is selectable from 10 to 400 amperes for the ATO-400P and from 10 to 600 amperes for ATO-600P. Since the ATO-400P and ATO-600P use unfiltered DC current supplies, there is the possibility of inductively tripping a circuit breaker bus differential relay.

  • Page 7: Optional Accessories

    ATO-400P / ATO-600P Operating Procedures 1.5 Optional Accessories 1. Heavy-duty welding-type C-clamps (Figure 3) are available as optional accessories. These C- clamps allow test lead connections to a wide variety of bushing sizes, bus bars, and conductors that require low-resistance test-lead contacts.

  • Page 8: Figure 2 Ato Sensing Cable

    ATO-400P / ATO-600P Operating Procedures Figure 2 ATO Sensing cable Figure 3 C-Clamp Cable...

  • Page 9: Ato Specifications

    FURNISHED ITEMS ... One power cord, one ground cable, 15-ft.(#1/0 AWG) current test lead ........cables, 15-ft. sensing test lead cables EXPENDABLES..Paper, Thermal sensitive, 2.5-inch wide roll (VIC p/n TP3) WARRANTY....One-Year Parts & Labor (Post-Warranty Service Contracts Available) ATO-400P SPECIFICATIONS ARE SUBJECT TO UPGRADES AND MAY BE CHANGED WITHOUT PRIOR NOTICE.

  • Page 10: Ato-600P Specifications

    ATO-400P / ATO-600P Operating Procedures 2.2 ATO-600P Specifications ATO-600P specifications and leading particulars are listed in Table 2.0 Table 2.0 ATO-600P Specifications MODEL....... ATO-600P TYPE ......Special-Purpose Test Equipment, Portable, Low Resistance-Ohmmeter CONFIGURATION..Third-generation (improved design, superseding original model) SIZE (inches)....16.8 Wide by 12.6 High by 10.6 Deep (42.7 Cm x 32 Cm x 30.5 Cm) WEIGHT.......

  • Page 11: Control And Display

    CONTROL AND DISPLAY 3.1 ATO-400P Front Panel The ATO-400P controls and displays are shown in the control-panel illustration, Figure 4. 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.

  • Page 12: Table 3.0 Functional Description Of Ato-400P Controls And Display

    ATO-400P / ATO-600P Operating Procedures Table 3.0 Functional Description of ATO-400P Controls and Display Figure 1 Adjacent Panel Marking Functional Description Index # 1 & 13 (Wing Nut) Current lead connectors. USB connector. USB port is for factory calibration, firmware updates, and interfacing with the software program supplied with each ATO.

  • Page 13: Ato-600P Front Panel

    ATO-400P / ATO-600P Operating Procedures 3.2 ATO-600P Front Panel The ATO-600P controls and displays are shown in the control-panel illustration, Figure 5. Pointing leader lines reference each item with an index number. Each index number is cross- referenced to a functional description in Table 4, which describes the function and purpose of each item on the control panel.

  • Page 14: Table 4.0 Functional Description Of Ato-600P Controls And Display

    ATO-400P / ATO-600P Operating Procedures Table 4.0 Functional Description of ATO-600P Controls and Display Figure 1 Adjacent Panel Marking Functional Description Index # 1 & 13 (Wing Nut) Current lead connectors. USB connector. USB port is for factory calibration, firmware updates and interfacing with the software program supplied with each ATO.

  • Page 15: Important Features

    ATO-400P / ATO-600P Operating Procedures 4.0 IMPORTANT FEATURES 4.1 Operating Voltages The ATO operates with voltages between 90-240Vac, 50/60Hz. 4.2 ATO RS-232C Serial Interface A built-in, RS-232C port permits the ATO to be interfaced with an IBM-compatible personal computer. An IBM PC software package supplied with each ATO allows the user to retrieve test records stored in the ATO’...

  • Page 16: Cable Connection

    ATO-400P / ATO-600P Operating Procedures 6.0 CABLE CONNECTION The ATO is supplied with 15-foot (#1/0 AWG) current-carrying cables and 15-foot voltage- sensing cables. Both cables are terminated with heavy-duty alligator clamps to connect to the device being tested. A typical cable connection for the ATO to a device under test is shown in figure 6 and figure 7.

  • Page 17: Operating Procedures

    ATO-400P / ATO-600P Operating Procedures 7.0 OPERATING PROCEDURES Review Figure 10 before proceeding with the step-by-step procedures that follow. 7.1 Step-by-Step Procedures 7.1.1 Precautions Do not measure the resistance of inductive devices. This can generate unsafe high-voltage spikes (created by a collapsing magnetic field) if the test current is interrupted by detaching a test lead during a test.

  • Page 18: Entering Alpha/Numeric Characters

    ATO-400P / ATO-600P Operating Procedures 1. ENTER RECORD ID 2. REVIEW RECORD 3. RESTORE RECORD 4. NEXT PAGE Figure 9 SETUP Menu The SETUP MENU lists four user options: Item 1 (ENTER ID) is used to input identification information for each stored data record (see 7.1.7).

  • Page 19: Figure 10 Step-By Step Procedures For Ato Operation

    ATO-400P / ATO-600P Operating Procedures Figure 10 Step-by Step Procedures for ATO Operation...
  • Page 20 ATO-400P / ATO-600P Operating Procedures...

  • Page 21: Run Normal Test Procedure

    ATO-400P / ATO-600P Operating Procedures 7.3 Run Normal Test Procedure The following procedure describes the steps to measure an unknown resistance. NOTE The red HIGH CURRENT PRESENT indicator will flash while test current is applied to the resistive load. Table 5.0 Run Test Procedure (Measure an Unknown Resistance)
  • Page 22 ATO-400P / ATO-600P Operating Procedures Table 5.0 Run Test Procedure (Measure an Unknown Resistance Continued) STEP ACTION ATO DISPLAY Select burn-in time by pressing a key (1 -5) CURRENT: 600 AMPS that corresponds to the desired burn-in time BURN-IN: 5 SEC (see display on step 5-3).
  • Page 23 ATO-400P / ATO-600P Operating Procedures Table 5.0 Run Test Procedure (Measure an Unknown Resistance Continued) STEP ACTION ATO DISPLAY 5-12 “RUN ANOTHER TEST?” displays. RUN ANOTHER TEST? 1. YES 2. NO 5-13 If another test is required; press key #1 SELECT TEST CURRENT: (YES).

  • Page 24: Figure 11 Typical Ato-400P/600P Test Report

    Flash EEPROM. The test record number assigned to this record will be displayed. Exit the RECORD SAVED display by pressing ENTER, which returns the display to the START MENU. This ends the RUN NORMAL TEST procedure. Figure 11 Typical ATO-400P/600P Test Report...

  • Page 25: Run Automatic Test Procedure

    ATO-400P / ATO-600P Operating Procedures 7.4 Run Automatic Test Procedure Automatic Test Mode allows the user to initiate a test by applying the sense cables across the resistive load. This feature is handy when the user wants to take multiple resistance readings of the same load or of different loads in the same current path.
  • Page 26 ATO-400P / ATO-600P Operating Procedures Table 6.0 Run Test Procedure (Measure an Unknown Resistance Continued) STEP ACTION ATO DISPLAY Press the START key to run a resistance measurement test. A percent of current AUTO TEST MODE RAMPING CURRENT 10% ramp level displays with the notice TEST TEST IN PROGRESS IN PROGRESS.
  • Page 27 ATO-400P / ATO-600P Operating Procedures Table 6.0 Run Test Procedure (Measure an Unknown Resistance Continued) STEP ACTION ATO DISPLAY 6-11 Pressing key #2 (NO) on SAVE THIS ARE YOU SURE? TEST RECORD (see step 6-8) causes the DATA WILL BE LOST! ARE YOU SURE? prompt to be displayed 1.

  • Page 28: Enter Record Id Procedure

    ATO-400P / ATO-600P Operating Procedures 7.5 Enter Record ID Procedure This procedure allows the user to enter the equipment identification data to the test record. Table 7.0 Enter Record ID Procedure (test-record, site, and equipment identification) STEP ACTION ATO DISPLAY Press key # 2 on the START MENU to go 1.
  • Page 29 ATO-400P / ATO-600P Operating Procedures Table 7.0 Enter Record ID Procedure (continued) STEP ACTION ATO DISPLAY Enter the test item’ s MODEL using the SERIAL NUMBER: alpha/numeric keypad. Press “ENTER” to load the entered characters and advance to the UP/DOWN TO POSITION “SERIAL NUMBER”...

  • Page 30: Review Record Procedure

    ATO-400P / ATO-600P Operating Procedures 7.6 Review Record Procedure This procedure describes the steps for reviewing a test record residing in the ATO’ s working memory. The user can view the record on the LCD display or print the record on the thermal printer.
  • Page 31 ATO-400P / ATO-600P Operating Procedures Table 8.0 Review Record Procedure (continued) STEP ACTION ATO DISPLAY Part of the selected record’ s ID appears 2 TESTS displaying the record number, MANUFACTURER, and MODEL. Press the 04/11/05 17:27:00 “ENTER” key to display the number of tests in the record, the date, and the time of the selected tests.

  • Page 32: Restore Record Procedure

    ATO-400P / ATO-600P Operating Procedures 7.7 Restore Record Procedure This procedure describes the steps to recall a test record stored in the ATO’ s Flash memory to working memory. Table 9.0 Restore Record Procedure STEP ACTION ATO DISPLAY On the START MENU, press key #2 1.
  • Page 33 ATO-400P / ATO-600P Operating Procedures Table 9.0 Restore record Procedure (continued) STEP ACTION ATO DISPLAY The “RECORD RESTORED!” message is RECORD RESTORED! displayed. Press the ”ENTER” key again to return to the REVIEW RECORD menu (resume the procedure at step 8-2 in Table 8.0).

  • Page 34: Print Test Record Directory Procedure

    ATO-400P / ATO-600P Operating Procedures 7.8 Print Test Record Directory Procedure This procedure describes the steps to print the ATO Flash record directory. Table 10.0 Print Test Record Directory Procedure STEP ACTION ATO DISPLAY 10-1 On the RESTORE RECORD display (step 9-...

  • Page 35: Erase Test Record Procedure

    ATO-400P / ATO-600P Operating Procedures 7.9 Erase Test Record Procedure This procedure describes the steps to delete a single test record or all the test records stored in the ATO Flash EEPROM. Table 11.0 Erase Test Record Procedure STEP ACTION...

  • Page 36: Computer Control

    ATO-400P / ATO-600P Operating Procedures 7.10 Computer Control A PC program is provided with each ATO allowing the user to down load the test records stored in ATO Flash EEPROM to a PC. Test records can be stored on any media the PC is capable of handling.

  • Page 37: Set Ato Clock Procedure

    ATO-400P / ATO-600P Operating Procedures 7.11 Set ATO Clock Procedure This procedure allows the user to set the ATO real time clock. Table 12.0 Set ATO Real Time Clock Procedure STEP ACTION ATO DISPLAY 12-1 Press key # 2 on the START MENU to go 1.

  • Page 38: Calibration Test Procedure

    ATO-400P / ATO-600P Operating Procedures 7.12 Calibration Test Procedure This procedure describes the steps to verify the ATO measurement accuracy and generates a calibration report. Five different calibration shunts are required for this test: 50micro-ohm, 100 micro-ohm, 500 micro-ohm, 1000 micro-ohm, 1900 micro-ohm. These test shunts shall be 0.1% accuracy or better.
  • Page 39 ATO-400P / ATO-600P Operating Procedures Table 13.0 Calibration Test Procedures (Continued) STEP ACTION ATO DISPLAY 13-9 Automatic; the ATO will measure the 100 CURRENT: 10.0 AMP ? -ohm shunt at 10A test current. BURN IN: 02 SEC 100 ? -OHM TEST 13-10 Automatic;...

  • Page 40: Figure 13 Calibration Test Results

    ATO-400P / ATO-600P Operating Procedures Table 13.0 Calibration Test Procedures (Continued) STEP ACTION ATO DISPLAY 13-18 Automatic; the ATO will measure the 1900 CURRENT: 10.0 AMP ? -ohm shunt at 10A test current. BURN IN: 02 SEC 1900 ? -OHM TEST 13-19 Automatic;...

  • Page 41: Diagnostic Check Procedure

    ATO-400P / ATO-600P Operating Procedures 7.13 Diagnostic Check Procedure This procedure describes the steps to perform the diagnostic check on the ATO. Table 14.0 Diagnostic Check Procedure STEP ACTION ATO DISPLAY 14-1 The diagnostic check is a functional DIAGNOSTIC CHECK verification self-test of the ATO .

  • Page 42: Figure 14 Diagnostic Test Cable Connection

    ATO-400P / ATO-600P Operating Procedures Table 13.0 Calibration Check Procedure (Continued) STEP ACTION ATO DISPLAY 14-8 Automatic, no operator action required. DIAG CHECK COMPLETE PRESS ANY KEY 14-9 Press any key to end DAIG CHECK. Display returns to START MENU.
  • Page 43 ATO-400P / ATO-600P Operating Procedures APPENDIX A Troubleshooting Guide Item Symptom Possible Problem Solution Reading is incorrect. 1. Poor connection at the test 1. Check connections to ensure teeth clips. of voltage-sensing and current clamps are firmly in contact with the device under test.
  • Page 44 ATO-400P / ATO-600P Operating Procedures 1710 Grevillea Court. Ontario, CA 91761, USA Phone 909-923-9390 Fax 909-923-9391 Web site: http//www.vanguard-instruments.com ATO-400P/600P May 2005...

This manual is also suitable for:

Ato-600p10-40010-600

Table of Contents