AEMC instruments Chauvin Arnoux 6412 Service/Calibration Manual
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AEMC instruments Chauvin Arnoux 6412 Service/Calibration Manual

Clamp-on ground resistance meter
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v3 - 03/02
SERVICE / CALIBRATION MANUAL
Clamp-On Ground Resistance Tester
AEMC
Model 3711/3731
®
(Chauvin Arnoux Model 6412/6415)
®
®
This document is confidential property of Chauvin Arnoux
, Inc. d.b.a. AEMC
Instruments and may not be reproduced without permission.
®
AEMC
Instruments retains the right to make changes to specifications herein at any time, without notice.

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Summary of Contents for AEMC instruments Chauvin Arnoux 6412

  • Page 1 v3 - 03/02 SERVICE / CALIBRATION MANUAL Clamp-On Ground Resistance Tester AEMC Model 3711/3731 ® (Chauvin Arnoux Model 6412/6415) ® ® This document is confidential property of Chauvin Arnoux , Inc. d.b.a. AEMC Instruments and may not be reproduced without permission. ®...

  • Page 2: Table Of Contents

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 TABLE OF CONTENTS Repair and Technical Services..................3 Specifications ......................... 4 Series Comparison......................5 Functions & Features ..................... 5 Calibration Required Items......................6 Procedure ......................... 7 Verification ........................ 7 Taking the Instrument Apart ................... 9 Probe Assembly ......................

  • Page 3: Repair And Technical Services

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 REPAIR AND CALIBRATION NOTE: Any attempts to repair and/or maintain this instrument, other than replacement of fuses and batteries, voids the warranty of the instrument. The presence of high voltages at certain locations requires servicing of this instrument by qualified personnel.

  • Page 4: Specifications

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 ELECTRICAL SPECIFICATIONS ® LCD Cover Material: Clear Lexan (UL94V1) or Ground Resistance equivalent Measurement Range Resolution Accuracy* Color: Gray body, red jaws Range Jaw Window Diameter: 1.25” (32 mm) 0.1 to 1.00Ω 0.01Ω ± (2% R ± 0.02Ω) 1.0 to 50.0Ω...

  • Page 5: Series Comparison

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 3711 / 3731 Series Comparison Model 3731 Model 3711 Size 9.25 x 3.94 x 2.17” Weight 2.2 lbs Max Conductor Size 1.25” (32 mm) 1 to 1200 Ω Ohm Function Max Current for Ω 5 A, 50 V Measurement Ampere Function...

  • Page 6: Required Items

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 CALIBRATION EQUIPMENT REQUIRED ITEMS: For Field Calibration: (resistance values only) Each ground resistance tester is supplied with a calibration loop to check and calibrate it. This loop does not allow calibration above 198Ω. The typical range of measurement of ground resistance is less than this value.

  • Page 7: Procedure

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 CALIBRATION PROCEDURE Note: The ground tester can be calibrated for resistance measurement values only if necessary. However, if the current calibration is required, it is imperative to readjust the ohms range. LAB CALIBRATION: Test Description Conditions Operation / Result ON / OFF...
  • Page 8 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 Resistance Measurement: Mode Press the ohm key pad Check R< 0.1Ω Measure 0.08Ω Display 0.08 ± 1 ct and symbol R< 0.1Ω Beginning of the scale Display 1.0 ± 1 ct* Measure 1Ω Beginning of the scale Display 20.0 ±...

  • Page 9: Taking The Instrument Apart

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 TAKING THE INSTRUMENT APART • The set of jaws are a mated pair and must remain this way. Repair only one probe at a time to ensure that jaws are not mixed with another pair. •...

  • Page 10: Probe Assembly

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 PROBE ASSEMBLY: • To replace the display pull the LCD support from the main board (do not remove the Elastomere connectors mounted in the supports) and replace the display. The color mark on the display must be on the right side of the board when viewing the main board with the five (5) button contacts facing up and at the bottom.

  • Page 11: Parts List

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 MECHANICAL PARTS MODEL 3711/3731 PART N0. DESCRIPTION UNIT LOC. 688241A96A FACE PLATE MODEL 3711/3731 683403C96 BOTTOM CASE 688176A03 CLEAR COVER MODEL 3711 688176A07 CLEAR COVER MODEL 3731 688016B90A JAW ASSEMBLY 3711/3731 525071-00 KEY PAD (5 ) 687850B93A MAIN BOARD W / COMPONENT 3711/3731 687848B83A...
  • Page 12 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 MAIN BOARD Descrip. Type Specification Ref # 10 nF 10 % 50 V CERAMIC 01492310245003 1 nF 10 % 50 V CERAMIC 01492310245000 1 nF 10 % 50 V CERAMIC 01492310245000 1 nF 10 % 50 V CERAMIC 01492310245000...
  • Page 13 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 C 42 4.7 nF 10 % 50 V CERAMIC 525327P30A C 80 47 uF 20 % 10 V CERAMIC 525180M30 C 81 47 uF 20 % 10 V TANTALUM 525180M30 C 82 10 uF 20 % 16 V TANTALUM...
  • Page 14 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 TRAN 2N7002 N-channel FET SOT-23 525112C37A 525029R30A R0 1 2.21 Kohm 50 ppm 0.25 W CM204 01298300100231 R0 2 1 Mohm 50 ppm 0.25 W CM204 01298320000031 R0 3 200 Ohm 50 ppm 0.25 W CM204 01298312100031 R0 4...
  • Page 15 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 R0 31 4.87 Kohm 50 ppm 0.25 W CM204 525085G30 R0 32 226 ohm 50 ppm 0.25 W CM204 525189J30 R0 33 24.9 Kohm 50 ppm 0.25 W CM204 01297302490101 R0 35 10 Kohm 50 ppm 0.25 W CM204...
  • Page 16 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 R0 71 30 Kohm 200 ppm 0.1 W 525400M30A R0 72 23.7 Kohm 50 ppm 0.25 W CM204 525540J30A R0 73 5 Kohm 20 % 100 ppm 0.5 W T93XA 523862H00 R0 74 16.2 Kohm 50 ppm 0.25 W CM204...
  • Page 17 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 TLC271CD 525034A30 TLE2022AID 525639N30A TLE2022AID 525639N30A TLE2022AID 525639N30A TLE2022AID 525639N30A TLE2022AID 525639N30A TLE2022AID 525639N30A TLE2022AID 525639N30A CD4053 SO16 525034F30 Z 10 CD4053 SO16 525034F30 Z 11 CD4051 SO16 525034R30 Z 12 CD4053 SO16 525034F30 Z 13 CD4053 SO16...
  • Page 18 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 C 114 1 nF 10 % 50 V CERAMIC 01492310245000 C 115 1 nF 10 % 50 V CERAMIC 01492310245000 C 116 1 nF 10 % 50 V CERAMIC 01492310245000 C 118 47 pF 50 V CERAMIC 01492347035000...
  • Page 19 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 R 111 3.01 Kohm 100 ppm 0.1 W 525399Z30A R 112 10 Kohm 50 ppm 0.1 W 525281V30A R 113 100 Kohm 50 ppm 0.1 W 525281X30A R 114 12.1 Kohm 100 ppm 0.1 W 525780G30A R 116 10 Kohm...
  • Page 20 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61 POWER SUPPLY BOARD 684724-93A Descrip. Type Specification Ref # C 201 10 uF 20 % 16 V TANTALUM 525180A30 C 202 NONE C 203 10 uF 20 % 16 V TANTALUM 525180A30 C 204 470 uF 20 % 10 V...

  • Page 21: Main Board Bottom

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL CAT# 2117.60/2117.61 MAIN BOARD BOTTOM TP144 TP98 R007 TP46 TP68 C040 TP17 R083 TP99 R006 TP79 TP88 R008 R021 TP16 TP43 C006 R022 C007 TP61 C016 C005 R023 R005 TP45 R084 TP35 R020 TP21 R024 R010 C011 C085 R018...

  • Page 22: Main Board Top

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL CAT# 2117.60/2117.61 MAIN BOARD TOP - 22 - v3 – 03/02...

  • Page 23: Generator Board

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL CAT# 2117.60/2117.61 GENERATOR BOARD - 23 - v3 – 03/02...

  • Page 24: Power Supply Board

    MODEL 3711/3731 SERVICE/CALIBRATION MANUAL CAT# 2117.60/2117.61 POWER SUPPLY BOARD - 24 - v3 – 03/02...

  • Page 25: Schematics

    MODEL 3711/3731 MAIN BOARD SCHEMATIC...
  • Page 26 MODEL 3711/3731 - GENERATOR BOARD SCHEMATIC...
  • Page 27 MODEL 3711/3731 - POWER SUPPLY SCHEMATIC J201 Z202 +BAT C201 J201 GND1 GND4 -BAT Q201 J201 R203 SW.Supply C203 J201 Q201 J201 +BAT J201 Z203 CR203 VOUT -BAT L201 SHDN C209 C204 R201 CR201 C205 C210 R202 Z204 -VOUT J202 CR202 C206 VREF...
  • Page 28 MODEL 3711/3731 SERVICE/CALIBRATION MANUAL CAT# 2117.60/2117.61 ® ® Chauvin Arnoux . Inc. d.b.a. AEMC Instruments 15 Faraday Drive • Dover, NH 03820 USA Phone: (603) 749-6434 • (800) 945-2362 • Fax: (603) 742-2346 www.aemc.com ® ® This document is confidential property of Chauvin Arnoux , Inc.

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Chauvin arnoux 641537113731

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