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ATO-400P / ATO-600P Operating Procedures

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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.
This feature is useful when the user wants to review a test record stored in the ATO’s Flash
EEPROM.

NOTE

To review a test record stored in Flash EEPROM, the user must first restore the test record from
Flash EEPROM to working memory (see paragraph 7.1.9 Restore Record Procedures).

Table 8.0 Review Record Procedure

STEP

ACTION

ATO DISPLAY

8-1

On the START MENU, press key #2
(SETUP) to select the SETUP MENU (shown
at right).

8-2

Press key#2 (REVIEW RECORD) on the
SETUP MENU, which displays the REVIEW
RECORD menu options.

8-3

If a record’s test results are to be printed,
press key #2 to select the PRINT TEST
RECORD option of the REVIEW RECORD
display. The “PLEASE WAIT
PRINTING… ” notice displays while printing.
When printing is complete, the display returns
to the START MENU. This ends the
procedure for this option of the SETUP menu.

8-4

If records are to be viewed in on the LCD,
press key #1 to select the SCROLL TEST
RECORDS option of the REVIEW RECORD
display. Scroll through the test records by
using the

?

and

?

keys.

1. ENTER ID
2. REVIEW RECORD
3. RESTORE RECORD
4. NEXT PAGE

REVIEW RECORD

1. SCROLL TEST RECORD
2. PRINT TEST RECORD

PLEASE WAIT

PRINTING . . .

RECORD ID INFO:

1710
VIC
ABC

«
...
28
29
30
31
32
...
»

Содержание ATO-400P

Страница 1: ...NSTRUCTIONS 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 ...

Страница 2: ...g 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 unaut...

Страница 3: ...O USB Interface 15 4 4 ATO LCD Contrast Adjustment 15 4 5 Paper Advance or Retract 15 5 0 ATO PRINTER PAPER 15 6 0 CABLE CONNECTION 16 7 0 OPERATING PROCEDURES 17 7 1 Step by Step Procedures 17 7 1 1 Precautions 17 7 1 2 Preparations 17 7 2 Operating Overview 17 7 2 1 Entering Alpha Numeric Characters 18 7 3 Run Normal Test Procedure 21 7 4 Run Automatic Test Procedure 25 7 5 Enter Record ID Proce...

Страница 4: ...e 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 Figure 9 SETUP Menu 18 Figure 10 Step by Step Procedures for ATO Operation 19 Figure 11 Typical ATO 400P 600P Test Report 24 Figure 12 Typical Directory Printout 34 Figure 13 Calibration Test Results 40 Figure 14 Diagnostic Test Cable Connection ...

Страница 5: ...dure Measure an Unknown Resistance 21 Table 6 0 Run Automatic Test Procedure Measure an Unknown Resistance 25 Table 7 0 Enter Record ID Procedure test record site and equipment identification 28 Table 8 0 Review Record Procedure 30 Table 9 0 Restore Record Procedure 32 Table 10 0 Print Test Record Directory Procedure 34 Table 11 0 Erase Test Record Procedure 35 Table 12 0 Set ATO Real Time Clock P...

Страница 6: ...g to the PC Down loading test records is accomplished by using the ATO s built in RS 232C or USB ports 1 3 Functional Description The ATO s operation is based on the electrical relationship described by Ohm s law R V I where I is a known current and V is the dc voltage measured across the unknown resistance typically a circuit breaker s contacts Since the current user selected through the unknown ...

Страница 7: ...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 2 An optional shipping case which holds the ATO and its cables is also available Figure 1 ATO Current Cable ...

Страница 8: ...ATO 400P ATO 600P Operating Procedures 8 Figure 2 ATO Sensing cable Figure 3 C Clamp Cable ...

Страница 9: ...unt MEMORY 63 records of 96 reading each DISPLAY Backlit LCD 4 lines high by 20 characters wide CONTROL Keypad 10 number keys and 6 function keys PRINTER Thermal printer 2 5 inch wide thermal paper INPUT POWER 20 amps 90 230 Vac 50 60 Hz with built in 25A circuit breaker UNIT PROTECTION Thermal overload sensor and cutoff INTERFACE RS 232C and USB Ports for PC Interface ENVIRONMENT Operating 10 C t...

Страница 10: ...63 records of 96 reading each DISPLAY Backlit LCD 4 lines high by 20 characters wide CONTROL Keypad 10 number keys and 6 function keys PRINTER Thermal printer 2 5 inch wide thermal paper INPUT POWER 20 amps 90 230 Vac 50 60 Hz with built in 25A circuit breaker UNIT PROTECTION Thermal overload sensor and cutoff INTERFACE RS 232C and USB Ports for PC Interface ENVIRONMENT Operating 10 C to 50 C 15 F...

Страница 11: ...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 ATO 400P First time users should also review and become familiar with the Safety Summary on the front pag...

Страница 12: ...nd interfacing with the software program supplied with each ATO 4 HIGH CURRENT PRESENT LED indicator red Lights when test current is flowing through the current test leads 5 No Marking Input power connector with third wire safety ground 6 GROUND Wing Nut ATO 400P ground stud Connect ground stud to substation ground using provided cable 7 No Marking Circuit breaker 25A 8 No marking Built in thermal...

Страница 13: ...oss referenced to a functional description in Table 4 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 ATO 600P First time users should also review and become familiar with the Safety Summary on the front page Figure 5 A...

Страница 14: ...nd interfacing with the software program supplied with each ATO 4 HIGH CURRENT PRESENT LED indicator red Lights when test current is flowing through the current test leads 5 No Marking Input power connector with third wire safety ground 6 GROUND Wing Nut ATO 600P ground stud Connect ground stud to substation ground using provided cable 7 No Marking Circuit breaker 25A 8 No marking Built in thermal...

Страница 15: ...aracters shown on the LCD in order to produce the best readability for the ambient light in the testing area To darken the LCD contrast press and hold the Contrast Paper key for more than 1 second To lighten the LCD contrast press and hold the Contrast Paper key for more than 1 second Release key when desired contrast level is obtained The ATO saves this LCD contrast setting level in memory 4 5 Pa...

Страница 16: ...r test is shown in figure 6 and figure 7 To protect the ATO against static discharge in the substation always connect the unit s ground stud to the substation ground It is also highly recommended to ground one side of the circuit breaker bushing during testing to eliminate any static discharge through the ATO NOTE The sense input is not polarity sensitive The sense cables may be connected to eithe...

Страница 17: ...t c Connect the current cable lugs and the voltage sensing cable plugs to control panel Figures 4 5 d Attach the current test cable clamps to opposite terminals of the resistive load being tested Figures 6 7 e Attach the voltage sensing clamps to the terminals of the resistive load The sensing voltage clamps should be inside the current clamps f Turn on ATO power by pressing the rocker switch to O...

Страница 18: ...y once to select the number marked on the key Press the key a second time to select the first letter marked on the key Press the key a third time to select the second letter marked on the key Press the key a fourth time to select the third letter marked on the key Additional key presses will repeat the selection cycle e g 2 A B C 2 When the character of choice is selected press the key to advance ...

Страница 19: ...ATO 400P ATO 600P Operating Procedures 19 Figure 10 Step by Step Procedures for ATO Operation ...

Страница 20: ...ATO 400P ATO 600P Operating Procedures 20 ...

Страница 21: ...rent The SELECT BURN IN TIME menu appears Go to step 5 4 For this example a 600A test current was selected For a user defined CUSTOM test current press key 8 and go to step 5 3a 5 3a Custom test current levels in 1 amp steps are entered via the keypad When finished entering the value press the ENTER key and go to step 5 4 For this example a 95A test current was entered NOTE INVALID ENTRY will appe...

Страница 22: ...n time the current returns to zero 5 7 Automatic no operator action required At the end of the burn in time the final resistance measurement displays Press the ENTER key to go to next display 5 8 The Print test result option menu displays 5 9 Printing option When the PRINT TEST RESULTS displays press key 1 to print Typical print out is shown in Figure 11 If no printout is needed then press key 2 G...

Страница 23: ...gs taken in this test 5 16 To save this record press key 1 YES If the test record is not to be saved press key 2 NO and go to step 5 18 NOTE A test record is saved in Flash EEPROM A record number will be automatically assigned to the record by the ATO The Test record was assigned 2 in this example 5 17 When the record is saved RECORD NUMBER x shows on the display press ENTER to return to the START...

Страница 24: ...ry and the display returns to the START MENU If key 2 is pressed the test record will be saved in 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 1 RUN TEST 04 11 05 2 SETUP 12 24 01 3 DIAGNOSTI...

Страница 25: ...easure an Unknown Resistance STEP ACTION ATO DISPLAY 6 1 Begin RUN TEST procedure Press key 1 on START MENU 6 2 Select Automatic test by pressing key 2 The SELECT TEST CURRENT menu appears Press key 1 to 7 for desired test current For this example a 100A test current was selected Go to step 6 4 For a user defined CUSTOM test current press key 8 and go to step 6 3 NOTE Burn in time is set for 5 sec...

Страница 26: ...onnect one or both sense cables steps 6 5 to 6 7 will be repeated without having to press the START key To end Automatic test mode press the STOP key 6 8 Pressing the STOP key will end the Automatic test mode and the SAVE THIS RECORD message is displayed 6 9 To save this record press key 1 YES If the test record is not to be saved press key 2 NO and go to step 6 11 NOTE A test record is saved in F...

Страница 27: ...1 is pressed the test record will be erased from the memory and the display returns to the START MENU If key 2 is pressed the test record will be saved in Flash EEPROM The test record number assigned to this record will be displayed Exit the RECORD SAVED display by pressing ENTER which returns to the START MENU This ends the RUN AUTOMATIC TEST procedure ARE YOU SURE DATA WILL BE LOST 1 DO NOT SAVE...

Страница 28: ...acters with the keypad 7 3 Enter the utility COMPANY name using the alpha numeric keypad Press ENTER to load the entered characters and advance to the STATION input screen 7 4 Enter the utility STATION name using the alpha numeric keypad Press ENTER to load the entered characters and advance to the CIRCUIT input screen 7 5 Enter the test item s CIRCUIT name using the alpha numeric keypad Press ENT...

Страница 29: ...ters and advance to the KVA RATING input screen 7 9 Enter the test item s KVA RATING using the alpha numeric keypad Press ENTER to load the entered characters and advance to the OPERATOR input screen 7 10 Enter the test OPERATOR name using the alpha numeric keypad Press ENTER to load the entered characters and return to the START MENU display This completes the ENTER ID procedure SERIAL NUMBER UP ...

Страница 30: ...TART MENU press key 2 SETUP to select the SETUP MENU shown at right 8 2 Press key 2 REVIEW RECORD on the SETUP MENU which displays the REVIEW RECORD menu options 8 3 If a record s test results are to be printed press key 2 to select the PRINT TEST RECORD option of the REVIEW RECORD display The PLEASE WAIT PRINTING notice displays while printing When printing is complete the display returns to the ...

Страница 31: ...8 6 Pressing the ENTER key will list all test 1 data Test current burn in time and the measured resistance value NOTE The test record in this example contains 2 tests 8 7 Press key to advance to next test Press key to return to previous test 8 8 Press STOP to return to START MENU Display returns to START MENU This completes the Review Record Procedure TEST NUMBER 1 TEST CURRENT 100 2A BURN IN TIME...

Страница 32: ...ORD NUMBER to display a prompt to enter the record number to restore 9 5 When the record s number has been entered press the ENTER key to restore the selected record RECORD RESTRORED message is then displayed Press ENTER key again to return to the REVIEW RECORD options menu resume the procedure at step 8 2 in Table 8 0 9 6 OPTION 2 Press key 2 SCROLL TO SELECT in the RESTORE RECORD menu to display...

Страница 33: ...ecord Procedure continued STEP ACTION ATO DISPLAY 9 8 The RECORD RESTORED message is displayed Press the ENTER key again to return to the REVIEW RECORD menu resume the procedure at step 8 2 in Table 8 0 This completes the Restore Record Procedure RECORD RESTORED ...

Страница 34: ...go to a menu of print options 10 2 The PRINT DIRECTORY option offers the choice of printing a FULL DIRECTORY or a SHORT DIRECTORY The PRINTING DIRECTORY notice displays as the selected directory prints When printing is completed the display returns to the START MENU This ends the directory procedures NOTE The Short directory printout lists the last 10 test records stored in Flash EEPROM memory Fig...

Страница 35: ...RASE RECORD menu display press key 1 to erase a single record 11 3 Enter the record number to be deleted then press the ENTER key to confirm Press the ENTER key again to return to the main menu NOTE Press the STOP key to abort 11 4 Press key 2 to erase all the stored records in EEPROM NOTE Press the STOP key to abort 11 5 Press the ENTER key to confirm 11 6 Press the ENTER key to return to the mai...

Страница 36: ...be stored on any media the PC is capable of handling This allows the user to store and archive test records for reviewing at any time Test records can also be printed from the PC through any printer to which it has access Down loading test records is accomplished by using the ATO s RS 232C or USB port NOTE The ATO will interface with a PC when a command is received through the ATO s RS 232C or USB...

Страница 37: ...the SETUP MENU shown at right 12 2 On the SETUP MENU press key 4 NEXT PAGE 12 3 Press key 1 to select SET TIME 12 4 Enter month date year hour minute and second 12 5 After the date and time is entered the ATO will return to the START MENU 1 ENTER RECORD ID 2 REVIEW RECORD 3 RESTORE RECORD 4 NEXT PAGE 1 SET TIME 2 CALIBRATE UNIT ENTER MM DD YY HH MM SS _ ENTER MM DD YY HH MM SS 05 10 05 20 05 00 1 ...

Страница 38: ...E UNIT 13 4 Press the ENTER key to continue 13 5 Connect the 50 micro ohm shunt to the ATO Press the ENTER key to start test 13 6 Automatic the ATO will measure the 50 ohm shunt at 10A test current 13 7 Automatic the ATO will measure the 50 ohm shunt at 100A test current Test results will be printed at the end of the 100A test 13 8 Connect the 100 micro ohm shunt to ATO Press ENTER key to start te...

Страница 39: ...0A test 13 14 Connect the 1000 micro ohm shunt to the ATO Press ENTER key to start test 13 15 Automatic the ATO will measure the 1000 ohm shunt at 10A test current 13 16 Automatic the ATO will measure the 1000 ohm shunt at 100A test current Test results will be printed at the end of the 100A test 13 17 Connect the 1900 micro ohm shunt to the ATO Press ENTER key to start test CURRENT 10 0 AMP BURN ...

Страница 40: ...c the ATO will measure the 1900 ohm shunt at 100A test current 13 20 Automatic Test results will be printed at the end of the 100A test and the ATO returns to the START MENU Figure 13 Calibration Test Results CURRENT 10 0 AMP BURN IN 02 SEC 1900 OHM TEST CURRENT 100 0 AMP BURN IN 02 SEC 1900 OHM TEST 1 RUN TEST 04 11 05 2 SETUP 12 26 01 3 DIAGNOSTIC Test Passed Test Failed Calibration Test Results...

Страница 41: ...lays a percent of ramp level as it ramps to full current When the ramp reaches full current the remaining self check functions automatically sequence without operator control If any circuit fails does not pass then do not use the ATO unit to measure any resistance until the problem has been corrected 14 3 Automatic no operator action required 14 4 Automatic no operator action required 14 5 Automat...

Страница 42: ... 0 Calibration Check Procedure Continued STEP ACTION ATO DISPLAY 14 8 Automatic no operator action required 14 9 Press any key to end DAIG CHECK Display returns to START MENU Figure 14 Diagnostic Test Cable Connection DIAG CHECK COMPLETE PRESS ANY KEY ...

Страница 43: ...eeth of voltage sensing and current clamps are firmly in contact with the device under test 2 Verify that the sense cables are connected on the inside of the current cables See Figures 6 7 2 Cable Error Message 1 No test current going through the device under test 2 Sensing cables problem 1 Check current cable connections to the device under test 2 Check sensing cable connections 3 Run Calibration...

Страница 44: ...ATO 400P ATO 600P Operating Procedures 44 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 ...

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