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24 

Section 5 

Maintenance and Calibration 

 
 

WARNING 

THESE  SERVICE  INSTRUCTIONS  ARE  FOR  USE  BY  QUALIFIED 
PERSONNEL  ONLY.    TO  AVOID  ELECTRIC  SHOCK,  DO  NOT 
PERFORM  ANY  SERVICING  OTHER  THAN  THAT  CONTAINED  IN 
THE  OPERATING  INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO 
DO SO. 

 

Introduction 

 

This  section  of  the  manual  contains  maintenance  information  for  the  HT-3000P 

Dielectric Withstand Tester.  This maintenance information is divided into service information, 
general  maintenance,  a  performance  test,  and  a  calibration  procedure.    The  performance  test  is 
recommended  as  an  acceptance  test  when  the  instrument  is  first  received,  and  later  as  a 
preventative maintenance tool to verify proper instrument operation.  A 1-year calibration cycle 
is recommended to maintain the specifications given in Section 1.  A three inch piece of approx. 
18 AWG insulated hookup wire with each end stripped back ½" and a lead with a banana plug on 
one  end  are  required  to  conduct  the  performance  test.    The  test  equipment  required  for  the 
calibration procedure is a DMM able to read true rms 0-2000 Vac 

±

 1%, 0-2800 Vdc 

±

 1%,  and 

a 3-ohm 1/4 w 1% resistor. 
 

Service Information 

 

The  HT-3000P  is  warranted  to  the  original  purchaser  for  a  period  of  1  year.    This 

warranty does not cover problems due to misuse or neglect.  
 

Malfunctions  which  occur  within  the  limits  of  the  warranty  will  be  corrected  at  no 

charge.  Mail the instrument post paid to the manufacturer.  Dated proof of purchase is required 
for all in-warranty repairs.   
 

The  manufacturer  is  also  available  for  calibration  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 manufacturer. 
 

General Maintenance 

 

Interior Access

 

 

NOTE 

To  avoid  contaminating  the  PWB  with  oil  from  your  fingers,  handle  it  by  the  edges  or 
wear gloves.  If the PWB becomes contaminated, refer to the cleaning procedures given 
later in this section. 
 

 

Содержание HT-3000P

Страница 1: ...HT 3000P Dielectric Withstand Tester 0 2000 Volts AC Output 0 2800 Volts DC Output Instruction Manual COMPLIANCE WESTUSA...

Страница 2: ......

Страница 3: ...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 t...

Страница 4: ...2...

Страница 5: ...and Rear Panel Features 11 Initial Checkout Procedure 16 Setting up the HT 3000P for Production Line Testing 17 Factory Settings 17 Display of Leakage Limit and Duration settings 17 Adjustment of the...

Страница 6: ...ndamentals clearly and be aware that high voltage is adept and creative at completing a path to ground Instructions should include a warning against any metal jewelry Operators should not allow others...

Страница 7: ...tion between the operator and the test being conducted The HT 3000P is designed to bleed the high voltage away after the test has concluded In order to ensure that any voltage present in the equipment...

Страница 8: ...continuously during the test When testing with the Ground Check switch in the Off position the operator must ensure that the Test Return Lead is properly connected to exposed dead metal of the equipme...

Страница 9: ...s is due to the AC voltage charging all capacitors connected between primary voltage and ground If the overall value of these capacitors cause a leakage current of more than 20 mA to flow at the desir...

Страница 10: ...ntil the voltage has discharged to a safe level to protect the operator and also to ensure that there is no energy stored in the tested equipment Testing Equipment with non Standard Plugs or Pigtail O...

Страница 11: ...ff by a resistor bank in the HT 3000P The voltage discharge progress is shown by the front panel meter Failure modes are shown by the front panel LED s for quick troubleshooting Convenience and testin...

Страница 12: ...available by removing adjustment shafts ENVIRONMENTAL Operating Temperature 15 40 C Relative Humidity Range 0 90 non condensing GENERAL Input power requirements See rear panel for input voltage and f...

Страница 13: ...ock absorbing material on all sides of the container Remove the tester from its container and place it on a test bench AC Line Voltage Requirements AC line voltage requirements for your Tester are not...

Страница 14: ...11 Figure 2 Controls Indicators Connectors Model HT 3000P Front Panel...

Страница 15: ...d the test will be terminated 5 Full Voltage LED If full voltage is successfully reached the Full Voltage LED will light and the high voltage duration timer starts 6 Hipot Fail LED Indicates failure o...

Страница 16: ...13 Figure 3 Controls Indicators Connectors Model HT 3000P Rear Panel...

Страница 17: ...ent of the High Voltage Ramp Time for this procedure 4 Test Time Adjustment Used to adjust high voltage test duration See Adjustment of the High Voltage Test Duration section for this procedure 5 Leak...

Страница 18: ...15...

Страница 19: ...osition 8 Verify that all test leads are disconnected from the HT 3000P 9 Push the red RESET button then the yellow TEST button 10 The tester should sound the buzzer The red Ground Open and red RESET...

Страница 20: ...may light and in some instances the Ground OK LED may extinguish Passage of these tests indicates that the HT 3000P is functioning properly and that it is safe to use If the results of the performanc...

Страница 21: ...ons Use this procedure if adjustment to a different ramp time within the range of 1 5 seconds is required 1 Defeat the Ground Check by turning the rear panel switch to the Off position 2 Connect the H...

Страница 22: ...the rear panel turn the Test Time potentiometer As soon as the potentiometer starts turning the meter will display d and the value can be set in 1 second increments from 1 to 60 seconds 4 If tamperpro...

Страница 23: ...e power switch to the I or ON position Push the RESET button The yellow TEST indicator should light indicating that the HT 3000P is ready to test 2 Connect the HTT 1 to the HT 3000P tester using the c...

Страница 24: ...f time set in the Test Duration procedure If a breakdown of the insulation system between primary voltage and ground is detected the red Hipot Fail LED will light the buzzer will sound and the test wi...

Страница 25: ...ssistance Phone 800 748 6224 Technical Assistance is available from Compliance West USA between the hours of 8 30 AM and 4 30 PM Pacific Time Compliance West USA 2120 Jimmy Durante Blvd Suite 118 Del...

Страница 26: ...23...

Страница 27: ...ad with a banana plug on one end are required to conduct the performance test The test equipment required for the calibration procedure is a DMM able to read true rms 0 2000 Vac 1 0 2800 Vdc 1 and a 3...

Страница 28: ...the front panel and case with a mild solution of detergent and a damp sponge Clean dust from the PWB with clean dry low pressure 20 psi Calibration Procedure The Calibration Procedure should be perfo...

Страница 29: ...r clip end to the 3 ohm resistor 3 Connect the banana plug end of the other lead to the round grounding jack of the DEVICE receptacle and the alligator clip end to the 3 ohm resistor 4 Turn the Ground...

Страница 30: ...a test and using the 1000 1 voltage probe to check the meter at different voltages If the voltages are not within 2 at each voltage the voltage calibration must be performed again starting at step 1 a...

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