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Page 1 

 
Introduction 

 

Warning

 

To avoid shock or injury, do not perform the verification tests or calibration 

procedures described in this manual unless you are qualified to do so. 

The information provided in this document is for the use of qualified personnel only. 

 

Caution 

The 61-796 Three Pole Ground Resistance Tester contains parts that can be damaged by static discharge. 

Follow the standard practices for handling static sensitive devices. 

 

For additional information about IDEAL INDUSTRIES, INC. and its products, 

and services, visit IDEAL INDUSTRIES, INC. web site at: 

www.idealindustries.com

 

 

 

Precautions and Safety Information 

          Use the meter only as described in the 

Users Manual

. If you do not 

          do so, the protection provided by the meter may be impaired. 
          Read the “Safety Information” page before servicing this product. 
          In this manual, a 

Warning

 identifies conditions and actions that  

          pose hazard(s) to the user; a 

Caution

 identifies conditions and  

          actions that may damage the meter or the test instruments. 
 

The Symbols 

          The symbols used on the meter and in this manual are explained in Table A.  
 

Table A.  Symbols 

Meter Safety 

Symbol 

Description 

 

Battery 

 

Cautionary or important information in manual 

 

Danger - Risk of electrical shock 

 

Double Insulation- Protection Class II 

CAT III 

IEC Over-voltage Category III 

 

 
SAFETY 

 
Review the following safety precautions to avoid injury and prevent damage to this product or any products 
connected to it. To avoid potential hazards, use the product only as specified. 
 

  CAUTION. 

These statements identify conditions or practices that could result in damage to the equipment or other property. 
 

  

WARNING.  

These statements identify conditions or practices that could result in personal injury or loss of life. 
Before beginning read all warnings and precautions stated in the 

“Instruction Manual”

 

 
Form number TM61796   

Rev 2 May 2008 

Содержание 61-796

Страница 1: ...following information Precautions and safety information Specifications Performance test procedure Calibration and calibration adjustment procedure Basic maintenance Disassembly Troubleshooting Spare Parts list Form number TM61796 Revision 2 Date May 2008 Form number TM61796 Rev 2 May 2008 ...

Страница 2: ...nd Voltage Potential Specifications 2 Required Standards and Equipment 3 Performance Verifications 3 Battery Test 3 Frequency Test 3 Resistance Test 3 AC Voltage Test 4 Disassembly and Setup For Calibration 4 Calibration 4 Procedure 4 5 Calibration Verification Test 5 Calibration Adjustment Locations 6 Component Layout 7 Troubleshooting 8 Spare Parts List 9 Form number TM61796 Rev 2 May 2008 ...

Страница 3: ...is manual a Warning identifies conditions and actions that pose hazard s to the user a Caution identifies conditions and actions that may damage the meter or the test instruments The Symbols The symbols used on the meter and in this manual are explained in Table A Table A Symbols Meter Safety Symbol Description Battery Cautionary or important information in manual Danger Risk of electrical shock D...

Страница 4: ...0 D Weight Approximately 3 0 lbs 1361g including battery Storage Environment 32 F to 122 F at 80 relative humidity Operating Environment Relative Humidity 32 F to 104 F 80 Relative Humidity Accessories included Hard Case Test Lead Set red 33m yellow 33m green 5m Red 1m dual input jack to alligator clip adapter lead 2 Auxiliary earth spikes and Instruction Manual RANGES and ACCURACY SPECIFICATION M...

Страница 5: ...librated meter to ensure the battery pack measures a minimum of 11 5V DC If the battery pack measures under 11 5V DC replace all 8 x 1 5V batteries before beginning the performance test Frequency Test Turn the function switch to 20Ω range Connect a frequency counter to terminals E and P Press and lock the TEST button The output frequency should be 820Hz 15Hz 805Hz 835Hz Resistance Test Connect the...

Страница 6: ...ion Qualified personnel should only perform calibration procedures described in this manual During this calibration it will be necessary to have the electronics of the instrument exposed A potential for hazardous voltage can be present during this procedure Use extreme caution ACV Adjustment refer to Figure 2 Turn the function switch to EARTH VOLTAGE position Press and lock the TEST button The dis...

Страница 7: ...nnect E P and C to the 100Ω standard resistor adjust VR4 for a reading of 100 0Ω 0 2 Select 2000Ω stage Short E P and C together check that the display reads 000 2 Connect E P and C to the 1000Ω standard resistor adjust VR5 for a reading of 1000Ω 2 Ω Calibration Verification Test The maximum allowable error just after calibration should not exceed those listed in Table 3 Table 3 Ω Verification Tes...

Страница 8: ...Page 6 Calibration Adjustment Locations VR6 ADJUST ACV VR1 ADJUST Hz VR3 ADJUST 10Ω VR4 ADJUST 100Ω VR5 ADJUST 1000Ω Figure 2 Form number TM61796 Rev 2 May 2008 ...

Страница 9: ...Page 7 Figure 3 Form number TM61796 Rev 2 May 2008 ...

Страница 10: ... or CON2 broken Replace U21 IC 5106Q or CON2 Power transformer broken Replace power transformer PT 1505 Hz no reading C6 C10 broken Replace C6 CPE 220uF C10 CDM 1uF C21 or Z2 broken Replace C21 CPE 22uF or Z2 TVS 6 5CA Fuse broken Replace Fuse ACV no reading U14 broken Replace U14 IC 062 ACV reading abnormal Diode broken Replace Diode ACV 0 no test Z2 broken Replace Z2 TVS 6 5CA Power transformer ...

Страница 11: ...ate 3 2 UP cover 1 3 PCB 2 4 Function switch 1 5 Test button 1 6 Hold button 1 7 0 Ω adjust 1 8 Housing case 1 9 Protection cover 4 10 Battery 8 11 Battery case 1 12 Handle 1 13 Latch 1 Others Test leads 1 Kit Simplified measurement probe 1 Auxiliary earth spikes 2 Shoulder belt 1 Instruction manual 1 ...

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