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Ground Continuity Resistance Measurement 

 

NOTE 

It  is  recommended  to  perform  the  adjustment  of  the  Ground  Continuity  Offset  before  measuring 

the Ground Continuity Resistance.  

 
To measure the Ground Continuity Resistance follows the next steps:  
 

a.

 

Turn Off the HT-S unit. 
 

b.

 

Turn the 

Ground Check

 switch on the rear panel to the ON position. 

 

c.

 

Connect the EUT fixture to the Return and Ground Continuity Measurement point of the HT-S unit. 
 

d.

 

Turn On the HT-S unit. 
 

e.

 

Press and hold for 1 second the 

Ground Offset

 button, located on the rear panel. The front display 

will show for a few seconds the Ground Continuity resistance of the EUT fixture connected on step 3.  
 

f.

 

Only  if  the  Ground  Continuity  resistance  measurement  is  more  than  1.50

,  the  display  will  show 

“OPEn”. 

 

Operation Techniques 

 
The  following  paragraphs  describe  how  to  operate  the  HT-S  tester.    Before  proceeding  with 

testing, the HT-S tester should be set up for production line testing.  See Section above before continuing. 

 
CAUTION: 
High  voltage  is  generated  by  the  HT-S.    Although  the  chassis  of  the  equipment  under  test  is 

grounded by the HT-S, a risk of shock exists.  Exercise care when using the HT-S. 

 

Testing 

 

This section describes how the HT-S tester is used to conduct a Hipot test.  Before continuing, we 

recommend that you read Section 1, "An Introduction to Dielectric Withstand Testing with the HT-S".  It 
contains valuable safety, operation, and test result evaluation information which can help you conduct the 
test  safely  and  correctly.    The  test  can  be  stopped  immediately  at  any  time  by  pressing  the  red 

RESET

 

button on the front panel. 

 

Summary of Contents for HT-2000S

Page 1: ...HT S Series Dielectric Withstand Tester With Ground Continuity Check Instruction Manual for Models HT 2000S 0 2000VAC HT 2800S 0 2800VDC HT 3000S 0 2000VAC 0 2800VDC HT 4200S 0 3000VAC 0 4200VDC...

Page 2: ...2...

Page 3: ...g logic controlled circuit design and ergonomic front panel and represents the latest in high voltage production line testing To fully appreciate all the features of your new meter we suggest that you...

Page 4: ...Interface PN 00 RI 19 Interlock PN 00 XI 19 Section 3 20 Operating Instructions 20 Setting up your Tester 20 AC Line Voltage Requirements 20 Fuse Replacement 21 Initial Checkout Procedure 21 High Volt...

Page 5: ...5 Technical Assistance 30 Contact Information 30 Section 5 31 Maintenance and Calibration 31 Service Information 31 Cleaning 31 Calibration Information 31...

Page 6: ...ring the test due to low insulation resistance of the insulating material which separates the two conductors and 2 an abrupt dielectric breakdown due to electrical arcing or discharge either through t...

Page 7: ...that a low resistance ground is provided by the building wiring If the HT S is used on a high resistance grounding circuit dangerous high voltages may be present to the operator In addition the power...

Page 8: ...with his right hand This will allow the greatest separation between the operator and the test being conducted The HT S is designed to bleed the high voltage away after the test has concluded In order...

Page 9: ...emoving the Test Return Lead clip from the equipment under test and reconnecting it taking care to make a good connection The unit should then be retested If a failing result is repeated the connectio...

Page 10: ...leakage current is below the limit set by the rear panel adjustment Sporadic Leakage Current Failures If the red Excess Leakage LED light is on the buzzer sounds and the test is terminated the leakage...

Page 11: ...n a problem has been found with the insulation between primary and ground The equipment under test should be examined reworked and successfully tested before being shipped High Voltage Discharge The H...

Page 12: ...buzzer sounds and any voltage stored in the equipment being tested is bled off by a resistor bank in the HT S unit The voltage discharge progress is shown by the front panel meter Failure modes are s...

Page 13: ...ge Limit Voltage Adjust Ground Continuity Defeat Switch Ground Continuity Limit Ground Continuity Offset Tamper proof operation available by removing adjustment shafts ENVIRONMENTAL Operating Temperat...

Page 14: ...utes to become familiar with the use of its controls indicators and connectors The front panel features of the HT S are shown in Figure 1 and Figure 2 then described in Table 2 Figure 1 Front Panel Co...

Page 15: ...15 Figure 2 Front Panel Controls Indicators and Connectors for HT 4200S...

Page 16: ...ground circuit resistance is acceptable the green continuity LED will light and the test will continue If the Ground Check switch is defeated by the operator both LED s will be lit for the duration of...

Page 17: ...T S tester take a few minutes to become familiar with the use of its controls indicators and connectors The rear panel features of the HT S are shown in Figure 3 and described in Table 3 Figure 3 Rear...

Page 18: ...passed for testing of double insulated equipment and other types of equipment without a grounding pin in the line cord 9 Ground Resistance Setting Adjustment Used to adjust the Ground Continuity pass...

Page 19: ...Output Full Voltage 7 Output Excess Leakage 8 Output Hipot Pass 9 Output Hipot Fail 10 Output Any Failure 11 Output COM2 12 Common Table 4 Relay Interface Pin Configuration Interlock PN 00 XI The Saf...

Page 20: ...essories which meet the manufacturer s specifications shall be used Connect this equipment to grounded outlet only The integrity of the test system grounding is dependent on building ground If reshipm...

Page 21: ...s AC and 2800 Volts DC or up to 3000 Volts AC and 4200 Volts DC for HT 4200S generated by the HT S is exposed during this test A risk of shock exists Exercise care when using the HT S High Voltage Per...

Page 22: ...e High Voltage Device socket may be as much as 2000 volts AC or 2800 volts DC or up to 3000 Volts AC and 4200 Volts DC for HT 4200S Proceed with caution 1 Disconnect all leads of the HT S front panel...

Page 23: ...200S HT 3000S HT 2000S Voltage Type AC Leakage Current Level 5 mA High Voltage Ramp Time 1 second High Voltage Level 1200 Volts High Voltage Test Time 2 seconds Ground Continuity Level 1 50 HT 2800S V...

Page 24: ...of supply and turn the power switch to the I or ON position Push the RESET button The yellow TEST indicator should light indicating that the HT S is ready to test e Use the AC DC button to select the...

Page 25: ...reached The test can be terminated at any time by pressing the RESET button 6 Check the position of the Ground Check switch before testing Setting the Ground Check Switch This switch controls whether...

Page 26: ...t in shortcut circuit the green alligator clip end to the Ground Connector Tip connected on step 3 See Figure 6 5 For HT 4200S plug the supplied 18 AWG GL Test Lead Alligator Clip Banana Plug ends bla...

Page 27: ...sistance measurement is more than 1 50 the display will show OPEn Operation Techniques The following paragraphs describe how to operate the HT S tester Before proceeding with testing the HT S tester s...

Page 28: ...t set on the HT S unit the green Ground OK LED will light and the test will continue 5 2 Ramp the voltage at the rate set by the Ramp Time procedure o If leakage current between the AC pins of the pow...

Page 29: ...y cord and the chassis ground of the unit rises above the value set by the Leakage Limit procedure the red Excess Leakage LED will light the buzzer will sound and the test will terminate o If the leak...

Page 30: ...m Compliance West USA is available Phone 800 748 6224 Hours 8 30 AM 4 30 PM Pacific Time Also available on our web site at www compwest com Contact Compliance West USA 650 Gateway Center Way Suite D S...

Page 31: ...tion and or repair of instruments that are beyond their warranty period Contact the manufacturer for a cost quotation Ship the instrument and your remittance according to the instructions given by the...

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