AEMC instruments Chauvin Arnoux 6412 User manual

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.
v3 - 03/02
SERVICE/CALIBRATION MANUAL
Clamp-On Ground Resistance Tester
AEMC®Model 3711/3731
(Chauvin Arnoux Model 6412/6415)

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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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........................................................................................................... 10
Parts List....................................................................................................................... 11
Main Board Bottom....................................................................................................... 21
Main Board Top.............................................................................................................22
Generator Board .......................................................................................................... 23
Power Supply Board..................................................................................................... 24
Schematics...............................................................................................................25-27
Revision Description Date Approved
1 Created Document 12/5/00 JPM
2 Added Generator and Power Supply 11/7/01 JPM
3 Added Parts List 3/18/02 JPM

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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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. It is recommended that it be sent to an authorized service center.
To guarantee that your instrument complies with the factory specifications, we
recommend that the unit be submitted to our factory service center at one-year intervals
for recalibration, or as required by other standards.
For instrument repair and/or calibration, please call our factory at (800) 945-AEMC.
CHAUVIN ARNOUX, Inc.
d.b.a. AEMC®Instruments
15 Faraday Drive • Dover, NH 03820 USA
[phone] • [phone] • Fax: [phone]
(Or contact your authorized distributor.) Estimates for repairs, normal recalibration, and
calibration traceable to N.I.S.T. are available.
All customers must call for a return authorization number before returning any
instrument.
TECHNICAL AND SALES ASSISTANCE
If you are experiencing any technical problems, or require any assistance with the proper
use or application of this instrument, please call our technical hotline:
CHAUVIN ARNOUX, Inc.
d.b.a. AEMC®Instruments
[phone] • [phone] • Fax: [phone]
www.aemc.com

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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ELECTRICAL SPECIFICATIONS
Ground Resistance
Measurement
Range Range Resolution Accuracy*
0.1 to 1.00Ω0.01Ω± (2% R ± 0.02Ω)
1.0 to 50.0Ω0.1Ω± (1.5% R ± 0.1Ω)
50.0 to 100.0Ω0.5Ω± (2.0% R ± 0.5Ω)
100 to 200Ω1Ω± (3.0% R ± 1Ω)
200 to 400Ω5Ω± (6.0% R ± 5Ω)
400 to 600Ω10Ω± (10% R ± 10Ω)
Autoranging
0.01Ωto 1200Ω
600 to 1200Ω50ΩApprox. 25% ±50
Ground or Leakage Current
Measurement
Range Range Resolution Accuracy*
1 to 299mA 1mA ± (2.5% R + 2mA)
0.300A to 2.999A 0.001A ± (2.5% R + 2mA)
Autoranging
1mA to
30.00Arms 3.00A to 29.99A 0.01A ± (2.5% R + 20mA)
R = Reading
* Reference conditions: 23°C ± 3K, 50% RH ± 10%, battery at 8 V ± 0.2V,
external magnetic field < 40 A/m, external electrical field < 1 V/m,
conductor centered, loop resistance noninductive. Accuracy % of reading,
Frequency: 50, 60 Hz.
Resistance Measurement Frequency: 2403Hz
Voltage generated into the loop: About 60mVrms
Alarm Range (Model 3731 Only): 0 to 199Ω
Resistance Overload: OL displayed above 1200Ω
Current Overload: OL displayed above 29.99Arms
Current Measurement Frequency: 47 to 800Hz
Influence of Frequency:
Add 7.5% to the reference specification
MECHANICAL SPECIFICATIONS
Dimensions: 9.25 x 3.94 x 2.17" (235 x 100 x 55 mm)
Weight: 2.2 lbs. (1 kg)
Case Material: Lexan®920A (UL94V2) or equivalent
Jaw Cover Material:
Lexan®with 10% fiberglass charge (UL94V0) or equivalent
LCD Cover Material: Clear Lexan®(UL94V1) or
equivalent
Color: Gray body, red jaws
Jaw Window Diameter: 1.25” (32 mm)
Jaw Opening: 1.38” (35 mm)
Operating Temperature: 14° to 131°F (-10° to 55°C)
Operating Humidity:
10 to 90% RH @ 14° to 104°F (-10° to 40°C),
75% RH @ 131°F (55°C)
Storage Temperature: -22° to 158°F (-30° to 70°C)
Altitude: Operational 2000m
Storage: 12000m
Power Supply: 9V alkaline (IEC 6LF22 or NEDA 1604A)
Battery Life:
Typical: 8 hrs or approx. 1000 measurements of 30
seconds
LCD: 3-3/4 digit, 1.73 x 1.10” (44 x 28 mm)
US Design Patent: No. 362,639
SAFETY SPECIFICATIONS
IEC 1010-2-032 (Class 2), Double Insulation
Working Voltage: 150V, Cat. III - Pollution Degree 2
300V, Cat. II - Pollution Degree 2
ELECTROMAGNETIC COMPATIBILITY:
Emission: EN 50081-1 Ed. 92
Immunity: EN 50082-1 Ed. 97
Vibration Test: IEC 68-2-6
Shock Test: IEC 68-2-27
Drop Test (1m): IEC 68-2-32
Max A Overload: 100A continuous, 200A (<5s) 50/60Hz
OL displayed above 29.99Arms
Environmental:
IP30 (Protection Index) EN 60529 Ed.92
IK04, EN 50102 Ed 95

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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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)
Ohm Function 1 to 1200 Ω
Max Current for Ω
Measurement 5 A, 50 V
Ampere Function 1 mA to 30 A rms
Display Hold Yes
Open Jaw Indicator Yes
Beeper Yes
Low Battery Indicator Yes
Battery Life Indicator % Batt. life @ power up
Alarm Function Yes, from 1 to 199 ΩNo
Memory Function Yes, 1 to 99 registers
(Ω& A) No
Noise Detection Yes - LCD indicator
Low Resistance Detection Yes - LCD indicator < 1 Ω
Auto Power Off Yes, 5 minute delay
More Functions & Features
Model 3731 Model 3711
Self-Test Yes, runs quick display test of
all functions at power up
Auto-Off Yes, 5 min if not in use,
may be disabled by user
LCD Battery Life Indicator Yes, 0 to 100 % @ power up
LCD Noise Interference Indicator Yes
LCD Open Jaw Indicator Yes
LCD Closed Loop Indicator Yes
LCD Display Hold Yes, Ω& A
Multi-tone Beeper Yes, may be disabled by user
Programmable Alarm Yes, from 1 to 199 Ω
high or low No
Programmable Memory Yes, up to 99 readings
(Ω& A) No
Saved Programming @ Power Off Yes No
Construction GE Lexan®and IEC Standards
Safety Standards Built to IEC 1010, UL, CSA, CS

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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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.
• One DC power supply adjustable from 5.6V to 10V (0.2A min.)
• Four resistors:
20Ω, 120Ω, 150Ω, 500Ω(Accuracy 0.25%)
• One AC Current generator to supply 1.4A, 50 or 60Hz (Accuracy 0.25%)
• One small insulated flat screwdriver.
For Laboratory Calibration: (including amps range):
Add the following items:
• One decade resistance box, accuracy 0.25% (non-inductive) adjustable from 0.01Ωto 500Ω.
• One AC current generator capable of supplying 100mA to 20A into a two turn wire loop with a
frequency of 50 to 400Hz. (Fluke 5500 or 5520).
• One DMM 20000 cts (Accuracy: < 0.1% in DC) and (< 0.5% in AC).

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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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 Press the ON/OFF key pad
Current Measurement:
Select Ampere Press the A key pad
Zero check No current through the jaws Check the probe display 0A + 2 cts.
Adjustment Supply 1.40A, 60Hz Wait until the reading stabilizes and adjust R073
to read 1.400A on the display ± 3 ct
Resistance Measurement:
Select the ohm range Press the Ωkey pad
Beginning of scale
adjustment Measure 20ΩAdjust R019 to read 20.0Ω/ -1 ct on the display
End of scale adjustment Measure 500ΩAdjust R040 to read 500Ω± 20 ct on the display
Readjust the preceding steps 2 to 3 times or until both readings are within specification
Middle of scale check Measure 120ΩCheck the display is 120 ± 4 cts.
Note the error value N1 (# of cts)
Middle of scale check Measure 150ΩCheck the display is 150 ± 4 cts.
Note the error value N2 (# of cts)
Control Gain Accuracy
To verify proper linearity of the two ranges, be
sure the difference between the above error
values (N1-N2) is less than 2 cts. If this condition
is not met, readjust the end of scale to balance
the error. Adjust R040 to read 500Ω± 40 cts.
CALIBRATION VERIFICATION
After calibration adjustment procedure is complete, verify the following conditions:
Test Description Conditions Operation / Results
ON / OFF Press the ON/OFF key pad
Current Measurement:
Ampere range Press the A key pad
Zero check No current Display 0A + 2 cts / - 0 cts
End of scale 3 - 30A Measure 25A Display 25.00A ± 60 cts
Beginning of scale 3 -30A Measure 5A Display 5.00A ± 12 cts
Range 300mA - 3A Measure 1.4A Display 1.400A ± 35 cts
Range 0 - 300mA Measure 200mA Display 200mA ± 5 cts

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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Resistance Measurement:
Mode Press the ohm key pad
Check R< 0.1ΩMeasure 0.08ΩDisplay 0.08 ± 1 ct and symbol R< 0.1Ω
Beginning of the scale Measure 1ΩDisplay 1.0 ± 1 ct*
Beginning of the scale Measure 20ΩDisplay 20.0 ± 2 ct
Linearity check Measure 40ΩDisplay 40.0 ±- 6 cts
Linearity check Measure 80ΩDisplay 80.0 ± 15 cts
Gains check Measure 120ΩDisplay 120 ± 4 ct
Note error N1 (# of ct)
Gains check Measure 150ΩDisplay 150 ± 4 ct
Note error N2 (# of ct)
Gains check To verify proper linearity of the two ranges, be sure the
difference between the above error values (N1-N2) is
less than 2 counts. If condition is not met, readjust the
end of the scale to balance the error. Adjust R040 to
read 500 Ω± 40 cts.
End of scale Measure 500ΩDisplay 500 ± 40 cts
End of scale Measure 1000ΩDisplay 1000 ± 200 cts
Open jaw detection Open the jaw Display the symbol: "jaw open"
*including lead
FIELD CALIBRATION WITH THE CALIBRATION LOOP:
NOTE: If necessary, adjust the Ampere range as shown above.
Cal Loop Accuracy: 0.3% typical (± 0.5% max.) This loop does not allow calibration above 198Ω.
Test description Conditions Operation / Result
ON / OFF Press the ON/OFF key pad
Beginning of scale
adjustment Insert the probe around 22Ωloop Adjust R019 to display 22.0Ω± 0.2 cts
End of scale adjustment Insert the probe around 198Ωloop Adjust R040 to display 198Ω± 7 cts or
198 - 4Ω
Readjust 2 or 3 times until both readings are within specification
CALIBRATION VERIFICATION WITH THE CALIBRATION LOOP
Test description Conditions Operation / result
ON / OFF Press the ON/OFF key pad
Insert the probe to the 7.9Ωloop Display 7.9 ± 0.3
Insert the probe to the 12.5Ωloop Display 12.5 ± 0.4
Beginning of scale Insert the probe to the 22Ωloop Display 22.0 ± 0.2
Insert the probe to the 49.5Ωloop Display 49.5 (+ 1.5 / -1.1)
End of scale Insert the probe to the 198Ωloop Display 198 (+ 7 / -4)

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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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.
• Always disconnect the battery before any disassembly of the board is attempted.
• Be sure that the opening of the jaws are perfectly clean. A small amount of foreign matter on the
surface of the jaws can bring the probe out of accuracy.
Necessary tools :
• Phillips screwdriver No. 1
• Standard flat screwdriver
• Jewelers screwdriver or pointed tweezers
• Torx screwdriver {No. 10}
• 25 W soldering iron
DISASSEMBLY PROCEDURE:
• Remove the two screws (V1 and V2) from the back cover and pull to remove it from the rest of the
instrument.
• Disconnect and remove the battery.
• Remove the springs (R1 and R2) from the jaw assembly and trigger. The jaw assembly spring (R2)
can be removed by wedging tweezers between the jaw and the holding pin and lifting it out of
position.
• Remove the jaw screws (V3, V8, and V9) and the lower board screws (V4 and V5).
• Carefully lift the board and jaw assemblies out of the case.
• Carefully disconnect the two jaw connectors (J1 and J2) from the generator board using the tweezers
or jewelers screwdriver to pry them out.
• Remove the jaws by sliding them over the shield. Keep the jaws as a pair.
• Desolder the solder joint attaching the shield to the board and the two wires from the beeper
(use caution to avoid melting the case).
• Open the shield and remove the board mounting screws (V10) on the top of the generator board and
the bottom of the main board and the screw near the battery holder (V6).
• Disconnect the connector (J3) from the power supply board and remove the generator board and the
shield.
• Remove the screw (V7) on the power supply board and unplug from its socket (J6).
• Remove the remaining four screws (V11 to V14) from the battery holder and LCD display holder.

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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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.
• Replace the 4 screws (V11 to V14) that hold the battery compartment, the board, and the display
mounts together.
• Screw in the bottom screw (V10 on display side of main board) into spacer (C). Wrap the shield
around the main board, positioning the hole in the top of the shield over the spacer (C).
• Plug in the generator board. Be sure all of the pins of the connectors (J4 and J5 are inserted) and
replace the mounting screws (V6 and top screw V10).
• Wrap the remainder of the solder shield around generator board. Solder the electrical shield to the
solder pad of the generator board.
• Plug in the power supply board with the battery connector lead running under the board between the
connector (J6) and the coil. Fasten with the screw (V7).
• Connect the supply connector (J3) from the generator board to the power supply.
• Connect the connector (J2) for the mobile jaw (jaw with trigger) to the generator board connector (J2)
and route the wires between the main board and generator board.
• Slide the board assembly through the mobile jaw while making sure the shield is between the jaw
plastics.
• Connect the connector (J1) for the fixed jaw (jaw without trigger) to the generator board connector
(J1) and route the wires between the main board and generator board.
• Insert the screw (V8) through the mounting screw hole (V10) in order to line up the jaws and the
board for proper insertion into the case.
• Insert the Elastomere keypad (green button for ON/OFF) and the HOLD knob with the spring into the
front case.
• Insert the jaw and board assembly into the case while keeping the case horizontal to avoid losing the
spring.
NOTE: The assembly should not have to be forced into position, but a slight manipulation may be
required.
• Before pushing the board all the way down, insert the beeper wires through the case opening and
solder to the board.
• Press down the board assembly and install the screws (V3, V8, and V9). Check the jaws to be sure
they are lined up perfectly before locking the screws.
• Replace the screws to fasten the lower end of the board (V3 and V5).
• Route the three wires from the generator board to the power supply board between the case and the
battery compartment.
• Insert the spring (R2) into the moving jaw and the other side into the fixed jaw.
• Place the plastic pin into the spring (R1) and insert the open end into the trigger. Slide the end with
the pin into the holding slot of the case.
• Connect the battery and close the back case with the two cover screws (V1 and V2).
CAUTION: Do not pinch the power supply wires between the two covers.

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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MECHANICAL PARTS MODEL 3711/3731
PART N0. DESCRIPTION QTY UNIT LOC.
688241A96A FACE PLATE MODEL 3711/3731 1 E 1
683403C96 BOTTOM CASE 1 E 2
688176A03 CLEAR COVER MODEL 3711 1 E 3
688176A07 CLEAR COVER MODEL 3731 1 E 3
688016B90A JAW ASSEMBLY 3711/3731 1 E 4
525071-00 KEY PAD (5 ) 1 E 5
687850B93A MAIN BOARD W / COMPONENT 3711/3731 1 E 6
687848B83A GENERATOR BOARD W/COMPONENT 3711/3731 1 E 7
684724-93A POWER SUPPLY BOARD W/COMPONENT 1 E 8
525249-00 LCD DISPLAY 1 E 9
525073-00 ELASTOMERE CONNECTOR (DISPLAY) 2 E 10
683414-96 DISPLAY HOLDER 2 E 11
683585A90 BATTERY COMPARTMENT 1 E 12
683416-96 HOLD BUTTON 1 E 13
683574-00 SPRING (HOLD BUTTON) 1 E 14
683573-00 SPRING (TRIGGER) 1 E 15
683415-96 SPRING GUIDE 1 E 16
683417-51 PIVOT SCREW 1 E 17
521061C00 DOWEL PIN 2 X 0.8 (JAW SPRING) 2 E 18
684714-00A JAW SPRING 1 E 19
525113A00 SCREW (SELF TAPPING) 9 E 20
525122B00 SCREW CBL H M3-12/FE BK (BOTTOM CASE) 2 E 21
684727-54A MOUNTING SCREW 2 E 22
684726-54A INSERT 1 E 23
684005-74 FOAM 3 E N/A
525113B00 SCREW (SELF TAPPING TORX #10) 1 E 25
524031-00 BATTERY CONNECTOR 1 E 26
525177-00 LOCK SCREW 1 E 27
683572-83 BEEPER ASSEMBLY 1 E 28
525274-00B CONNECTOR 3 CTS 1 E 29
525275-00A CONTACT F P/CONNECTOR 1 E 30
357647Z00 WIRE / MB 0,12/PVC/ BU 0.1 M 31
357651Y00 WIRE / MB 0,12/PVC/ WH 0.1 M 32
357647Y00 WIRE / MB 0,12/PVC/ RD 0.1 M 33
684904-96A HOLDER (WRIST STRAP) 1 E 35
P03100824 WRIST STRAP 1 E 36
525291-00A PUSH LOCK (WRIST STRAP) 1 E 38
684788-03A SHIELD 1 E 39

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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MAIN BOARD
Descrip. Type Val Specification Ref #
C 1 CAP 10 nF 10 % 50 V CERAMIC 01492310245003
C 2 CAP 1 nF 10 % 50 V CERAMIC 01492310245000
C 3 CAP 1 nF 10 % 50 V CERAMIC 01492310245000
C 4 CAP 1 nF 10 % 50 V CERAMIC 01492310245000
C 5 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 6 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 7 CAP 3.3 nF 5 % 50 V CERAMIC 525845C30A
C 8 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 9 CAP 3.3 nF 5 % 50 V CERAMIC 525845C30A
C 10 CAP 2.2 nF 10 % 50 V CERAMIC 01492322245000
C 11 CAP 1 nF 5 % 50 V CERAMIC 525180U37A
C 12 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 13 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 14 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 15 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 16 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 17 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 18 CAP 100 nF 20 % 16 V CERAMIC 525083E37A
C 19 CAP 10 nF 10 % 50 V CERAMIC 524891L37A
C 20 CAP 1 nF 10 % 50 V CERAMIC 01492210245000
C 21 CAP 470 nF 20 % 25 V CERAMIC 525288Q30A
C 22 CAP 1 nF 10 % 50 V CERAMIC 01492210245000
C 23 CAP 10 nF 10 % 50 V CERAMIC 524891L37A
C 24 CAP 10 nF 10 % 50 V CERAMIC 524891L37A
C 25 CAP 10 pF 10 % 50 V CERAMIC 524891L37A
C 26 CAP 10 nF 10 % 50 V CERAMIC 524891L37A
C 27 CAP 10 nF 10 % 50 V CERAMIC 524891L37A
C 28 CAP 10 nF 10 % 50 V CERAMIC 524891L37A
C 29 CAP 1 nF 5 % 50 V CERAMIC 01492310235000
C 30 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
C 31 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
C 32 CAP 1 nF 10 % 50 V CERAMIC 01492210245000
C 33 CAP 10 nF 10 % 50 V CERAMIC 524891L37A
C 34 CAP 10 nF 10 % 50 V CERAMIC 524891L37A
C 35 CAP 100 nF 10 % 50 V CERAMIC 525083E37A
C 36 CAP 4.7 nF 10 % 50 V CERAMIC 525327P30A
C 37 CAP 1 nF 10 % 50 V CERAMIC 01492210245000
C 38 CAP 100 nF 10 % 50 V CERAMIC 525083E37A
C 39 CAP 100 nF 10 % 50 V CERAMIC 525083E37A
C 40 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 41 CAP 10 nF 10 % 50 V CERAMIC 524891L37A

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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C 42 CAP 4.7 nF 10 % 50 V CERAMIC 525327P30A
C 80 CAP 47 uF 20 % 10 V CERAMIC 525180M30
C 81 CAP 47 uF 20 % 10 V TANTALUM 525180M30
C 82 CAP 10 uF 20 % 16 V TANTALUM 525180A30
C 83 CAP 10 uF 20 % 16 V TANTALUM 525180A30
C 84 CAP 10 uF 20 % 16 V TANTALUM 525180A30
C 85 CAP 10 uF 20 % 16 V TANTALUM 525180A30
C 86 CAP 10 uF 20 % 16 V TANTALUM 525180A30
C 87 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
C 88 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
C 89 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
C 90 CAP 1 nF 10 % 50 V CERAMIC 01492210245000
C 91 CAP 10 nF 10 % 50 V CERAMIC 01492310245003
C 92 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
C 93 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
C 94 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
CR 1 DIODE BZV55C6, 2 V ZENER SOD-80 524842W30
CR 2 DIODE BZV55C6, 2 V ZENER SOD-80 524842W30
CR 3 DIODE BZV55C6, 2 V ZENER SOD-80 524842W30
CR 4 DIODE BZV55C6, 2 V ZENER SOD-80 524842W30
CR 5 DIODE LL103A SCHOTTKEY SOD-80 524842P30
CR 6 DIODE LL103A SCHOTTKEY SOD-80 524842P30
CR 7 DIODE LL4148F SIGNAL SOD-80 524842N37A
CR 8 DIODE LL4148F SIGNAL SOD-80 524842N37A
CR 9 DIODE LL4148F SIGNAL SOD-80 524842N37A
L 1 COIL BLM21A10 805 525435-30A
L 2 COIL BLM21A10 805 525435-30A
L 3 COIL BLM21A10 805 525435-30A
L 4 COIL BLM21A10 805 525435-30A
L 5 COIL BLM21A10 805 525435-30A
L 6 COIL BLM21A10 805 525435-30A
J 1 CONN 53014-510 5 CONTACT MALE J5-53014 525881A00A
J 2 CONN 53014-510 5 CONTACT MALE J5-53014 525881A00A
J 3 CONN 6 CONTACT J-F4945D00 524945D00
J 4 CONN 4 CONTACT J-F4945G00 524945G00
J 5 CONN 4 CONTACT J-F4945G00 524945G00
Q 1 TRAN 2N7002 N-channel FET SOT-23 525112C37A

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
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Q 2 TRAN 2N7002 N-channel FET SOT-23 525112C37A
R0 1 RES 2.21 Kohm 1 % 50 ppm 0.25 W CM204 525029R30A
R0 2 RES 1 Mohm 1 % 50 ppm 0.25 W CM204 01298300100231
R0 3 RES 200 Ohm 1 % 50 ppm 0.25 W CM204 01298320000031
R0 4 RES 121 Ohm 1 % 50 ppm 0.25 W CM204 01298312100031
R0 5 RES 4.22 Kohm 1 % 50 ppm 0.25 W CM204 01298300422131
R0 6 RES 3.43 Kohm 1 % 50 ppm 0.25 W CM204 525140Z30
R0 7 RES 1.43 Kohm 1 % 50 ppm 0.25 W CM204 525399Q30A
R0 8 RES 21.5 Kohm 5 % 50 ppm 0.25 W CM204 01298302150131
R0 9 RES 33.2 Kohm 5 % 50 ppm 0.1 W 805 525838X30A
R0 10 RES 2.21 Kohm 1 % 50 ppm 0.1 W 805 525400Q30A
R0 11 RES 3.83 Kohm 1 % 50 ppm 0.25 W CM204 5225479Y30A
R0 12 RES 24.9 Kohm 1 % 50 ppm 0.25 W CM204 525544K30A
R0 13 RES 1.18 Kohm 0.1 % 25 ppm 0.25 W CM204 01297300118101
R0 14 RES 11.3 Kohm 0.1 % 25 ppm 0.25 W CM204 012973 1130101
R0 15 RES 6.04 Kohm 1 % 100 ppm 0.1 W 805 525479G30A
R0 16 RES 2.37 Kohm 1 % 50 ppm 0.25 W CM204 01298300237131
R0 17 RES 820 ohm 1 % 50 ppm 0.25 W CM204 525838M30A
R0 18 RES 1.5 Kohm 1 % 50 ppm 0.25 W CM204 01298300150131
R0 19 POT 5 Kohm 20 % 50 ppm 0.5 W T93XA 523862H00
R0 20 RES 16.9 Kohm 5 % 50 ppm 0.25 W CM204 525544M30A
R0 21 RES 825 ohm 5 % 50 ppm 0.25 W CM204 01298382500031
R0 22 RES 1 Kohm 0.1 % 50 ppm 0.25 W CM204 525264H30
R0 23 RES 31 Kohm 0.1 % 50 ppm 0.25 W CM204 525264J30
R0 24 RES 3.83 Kohm 1 % 50 ppm 0.25 W CM204 525479Y30A
RO 25 RES 2.74 Kohm 1 % 100 ppm 0.1 W 805 525628N30A
R0 26 RES 100 Kohm 5 % 200 ppm 0.1 W 805 525400F30A
R0 27 RES 100 Kohm 5 % 200 ppm 0.1 W 805 525400F30A
R0 28 RES 1.21 Mohm 1 % 50 ppm 0.25 W CM204 01298300121231
R0 29 RES 7.15 Kohm 1 % 50 ppm 0.25 W CM204 525077K37
R0 30 RES 4.87 Kohm 1 % 50 ppm 0.25 W CM204 525085G30

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
v3 – 03/02 - 15 -
R0 31 RES 4.87 Kohm 1 % 50 ppm 0.25 W CM204 525085G30
R0 32 RES 226 ohm 1 % 50 ppm 0.25 W CM204 525189J30
R0 33 RES 24.9 Kohm 1 % 50 ppm 0.25 W CM204 01297302490101
R0 35 RES 10 Kohm 1 % 50 ppm 0.25 W CM204 525029J37
R0 36 RES 4.87 Kohm 1 % 50 ppm 0.25 W CM204 525085G30
R0 37 RES 4.87 Kohm 1 % 50 ppm 0.25 W CM204 525085G30
R0 38 RES 226 ohm 1 % 50 ppm 0.25 W CM204 525189J30
R0 40 POT 50 Kohm 20 % 100 ppm 0.5 W T93XA 523862K00
R0 41 RES 446 ohm 1 % 50 ppm 0.25 W CM204 525189U30
R0 42 RES 36.5 Kohm 1 % 50 ppm 0.25 W CM204 525243Z30
R0 43 RES 10 Kohm 1 % 50 ppm 0.25 W CM204 525029J37
R0 44 RES 3.83 Kohm 1 % 50 ppm 0.25 W CM204 525479Y30A
R0 45 RES 32.4 Kohm 1 % 50 ppm 0.25 W CM204 525077T30
R0 46 RES 66.5 Kohm 1 % 50 ppm 0.25 W CM204 525116L37A
R0 47 RES 133 Kohm 1 % 50 ppm 0.25 W CM204 01298313300131
R0 48 RES 10 Kohm 1 % 50 ppm 0.25 W CM204 525029J37
R0 49 RES 31 Kohm 1 % 50 ppm 0.25 W CM204 525264J30
R0 50 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 51 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 52 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 53 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 54 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 55 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 57 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 58 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 59 RES 1 Mohm 5 % 200 ppm 0.1 W 805 525400B30A
R0 60 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 61 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 62 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 63 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 64 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 65 RES 4.7 Kohm 5 % 200 ppm 0.1 W 805 525400C30A
R0 66 RES 1 Kohm 5 % 200 ppm 0.25 W 1206 525077N37
R0 67 RES 2 Mohm 1 % 200 ppm 0.1 W 805 525677R30A
R0 68 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 69 RES 47 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 70 RES 100 ohm 5 % 200 ppm 0.1 W 805 525400M30A

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
v3 – 03/02 - 16 -
R0 71 RES 30 Kohm 5 % 200 ppm 0.1 W 805 525400M30A
R0 72 RES 23.7 Kohm 1 % 50 ppm 0.25 W CM204 525540J30A
R0 73 POT 5 Kohm 20 % 100 ppm 0.5 W T93XA 523862H00
R0 74 RES 16.2 Kohm 1 % 50 ppm 0.25 W CM204 01298301620131
R0 75 RES 4.87 Kohm 1 % 50 ppm 0.25 W CM204 525085G30
R0 76 RES 10 Kohm 1 % 50 ppm 0.25 W CM204 525029J37
R0 77 RES 10 Kohm 1 % 50 ppm 0.25 W CM204 525029J37
R0 78 RES 10 Kohm 1 % 50 ppm 0.25 W CM204 525029J37
R0 79 RES 470 Kohm 5 % 200 ppm 0.1 W 805 525479P30A
R0 80 RES 12.1 ohm 5 % 200 ppm 0.125 W 805 525479P30A
R0 81 RES 12.1 ohm 5 % 200 ppm 0.125 W 805 525743P30A
R0 82 RES 40.2 ohm 1 % 50 ppm 0.25 W CM204 525264V30
R0 83 RES 24.9 Kohm 1 % 50 ppm 0.25 W CM204 01297302490101
R0 84 RES 3.4 Kohm 1 % 50 ppm 0.25 W CM204 525140Z30
R0 85 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 86 RES 475 ohm 1 % 50 ppm 0.1 W 805 525838Y30A
R0 87 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 90 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 91 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 92 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 94 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 95 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400A30A
R0 96 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 97 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 98 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 99 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
R0 100 RES 1.47 Kohm 1 % 50 ppm 0.25 W CM204 01298300147131
R0 101 RES 2.32 Kohm 1 % 50 ppm 0.25 W CM204 525077W30
R0 186 RES 10 Kohm 5 % 200 ppm 0.1 W 805 525400E30A
D 1 LCD D-ZEB26/OHM 525249-00
RRO 1 RES NTWK 525079-00
SO 1 SWITCH PUSHBUTTON 524974A00
Y 1 QUARTZ 8 MHz Y-F5671 525841-40A

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
v3 – 03/02 - 17 -
Z 1 IC TLC271CD SO8 525034A30
Z 2 IC TLE2022AID SO8 525639N30A
Z 3 IC TLE2022AID SO8 525639N30A
Z 4 IC TLE2022AID SO8 525639N30A
Z 5 IC TLE2022AID SO8 525639N30A
Z 6 IC TLE2022AID SO8 525639N30A
Z 7 IC TLE2022AID SO8 525639N30A
Z 8 IC TLE2022AID SO8 525639N30A
Z 9 IC CD4053 SO16 525034F30
Z 10 IC CD4053 SO16 525034F30
Z 11 IC CD4051 SO16 525034R30
Z 12 IC CD4053 SO16 525034F30
Z 13 IC CD4053 SO16 525034F30
Z 14 IC DG412 DY-T SO16 525201R30
Z 15 IC CD4093 SO14 525034D30
Z 16 IC CD4093 SO14 525034D30
Z 17 IC NM93C66M8 SO8 525289M30A
Z 18 IC M37513 EFGP 100P6Q-A 525789U40A
Z 19 IC TLE2022AID SO8 525639N30A
GENERATOR BOARD
Descrip. Type Val Specification Ref #
C 101 CAP 1 nF 5 % 50 V CERAMIC 525180U37A
C 102 CAP 220 pF 5 % 50 V CERAMIC 525552U30A
C 103 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
C 104 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
C 105 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 106 CAP 22 nF 5 % 50 V CERAMIC 525288K30A
C 107 CAP 47 uF 20 % 10 V TANTALUM 525180M30
C 108 CAP 47 uF 20 % 10 V TANTALUM 525180M30
C 109 CAP 47 uF 20 % 10 V TANTALUM 525180M30
C 110 CAP 47 uF 20 % 10 V TANTALUM 525180M30
C 111 CAP 1 nF 20 % 50 V CERAMIC 01492310245000
C 112 CAP 1 nF 10 % 50 V CERAMIC 01492310245000
C 113 CAP 1 nF 10 % 50 V CERAMIC 01492310245000

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
v3 – 03/02 - 18 -
C 114 CAP 1 nF 10 % 50 V CERAMIC 01492310245000
C 115 CAP 1 nF 10 % 50 V CERAMIC 01492310245000
C 116 CAP 1 nF 10 % 50 V CERAMIC 01492310245000
C 118 CAP 47 pF 5 % 50 V CERAMIC 01492347035000
C 119 CAP 47 pF 5 % 50 V CERAMIC 01492347035000
C 140 CAP 100 nF 10 % 50 V CERAMIC 525083E37A
C 141 CAP 470 nF 20 % 50 V CERAMIC 525288Q30A
CR 103 DIODE 1N5335B ZENER CB417 525182J00A
CR 106 DIODE 1N5335B ZENER CB417 525182J00A
CR 107 DIODE LL4148F SIGNAL SOD80 524842N37A
L 1 COIL BLM21A10 805 525435-30A
L 2 COIL BLM21A10 805 525435-30A
L 3 COIL BLM21A10 805 525435-30A
L 4 COIL BLM21A10 805 525435-30A
L 5 COIL BLM21A10 805 525435-30A
J 101 CONN MALE CONNECTOR 5 PIN J-F5273-00D 525273-00D
J 102 CONN MALE CONNECTOR 5 PIN J-F5273-00D 525273-00D
J 103 CONN BERG PIN X 4 J4F9405 529405E00
J 107 CONN BERG PIN X 4 J4F9405 529405E00
Q 101 TRANS MMBT2222 NPN SOT-23 525112M30
Q 102 TRANS MMBT2907 PNP SOT-23 525112L30
Q 103 TRANS MMBT2222 NPN SOT-23 525112M30
Q 104 TRANS MMBT2907 PNP SOT-23 525112L30
Q 105 TRANS 2N7002T1 N-channel FET SOT-23 525112C37A
Q 106 TRANS 2N7002T1 N-channel FET SOT-23 525112C37A
R 101 RES 7.87 Kohm 1 % 50 ppm 0.25 W CM204 525116Y30
R 102 RES 19.1 Kohm 1 % 50 ppm 0.25 W CM204 525116K30
R 103 RES 19.1 Kohm 1 % 50 ppm 0.25 W CM204 525116K30
R 104 RES 7.87 Kohm 1 % 50 ppm 0.25 W CM204 525116Y30
R 105 RES 10 ohm 1 % 50 ppm 0.25 W 1206 01293000100001
R 106 RES 9.09 ohm 1 % 50 ppm 0.25 W CM204 525628J30A
R 110 RES 3.01 Kohm 1 % 100 ppm 0.1 W 805 525399Z30A

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
v3 – 03/02 - 19 -
R 111 RES 3.01 Kohm 1 % 100 ppm 0.1 W 805 525399Z30A
R 112 RES 10 Kohm 1 % 50 ppm 0.1 W 805 525281V30A
R 113 RES 100 Kohm 1 % 50 ppm 0.1 W 805 525281X30A
R 114 RES 12.1 Kohm 1 % 100 ppm 0.1 W 805 525780G30A
R 116 RES 10 Kohm 1 % 50 ppm 0.1 W 805 525281V30A
R 117 RES 100 Kohm 1 % 50 ppm 0.1 W 805 525281X30A
R 118 RES 12.1 Kohm 1 % 100 ppm 0.1 W 805 525780G30A
R 119 RES 100 ohm 5 % 200 ppm 0.25 W 1206 525077M37
R 121 RES 30.1 Kohm 1 % 50 ppm 0.25 W CM204 01298303010131
R 122 RES 200 Kohm 1 % 50 ppm 0.25 W CM204 01298320000131
R 123 RES 10.5 Kohm 1 % 50 ppm 0.25 W CM204 525544L30A
R 124 RES 100 ohm 1 % 100 ppm 0.25 W 1206 01293000200001
R 125 RES 100 ohm 1 % 100 ppm 0.25 W 1206 01293000200001
R 127 RES 12.1 Kohm 5 % 200 ppm 0.125 W 805 525780G30A
R 128 RES 47.5 Kohm 1 % 100 ppm 0.1 W 805 525400V30A
R 129 RES 10 Kohm 1 % 50 ppm 0.1 W 805 525281V30A
R 130 RES 0 ohm 50 mohm 805 525544Z30A
R 131 RES 3.4 Kohm 1 % 50 ppm 0.1 W 805 525399J30A
R 132 RES 6.8 Kohm 1 % 50 ppm 0.25 W CM204 525541B30A
R 139 RES 47.5 Kohm 1 % 100 ppm 0.1 W 805 525400V30A
R 141 RES 12.1 Kohm 5 % 200 ppm 0.125 W 805 525780G30A
R 142 RES 10 Kohm 1 % 50 ppm 0.1 W 805 525281V30A
R 150 RES 76.8 Kohm 1 50 ppm 0.25 W CM204 525281C30A
R 151 RES 66.5 Kohm 1 % 50 ppm 0.25 W CM204 525116L37A
R 180 RES 221 Kohm 1 % 50 ppm 0.25 W CM204 525033G37
R 185 RES 1 Mohm 5 % 200 ppm 0.1 W 805 525400B30A
S 101 SWITCH S-F5370 525885A00A
Z 101 IC TLE2062ID SO8 525329K30A
Z 102 IC TLE2062ID SO8 525329K30A
Z 103 IC CD4053BCM SO16 525034F30
Z 104 IC TLC27M2CD SO8 01959002200000
Z 105 IC TLE2022 SO8 525639N30A
Z 107 IC CD4040BCM SO16 525145Z30
Z 108 IC CD4051BCM SO16 525034R30

MODEL 3711/3731 SERVICE/CALIBRATION MANUAL Cat. #2117.60/2117.61
v3 – 03/02 - 20 -
POWER SUPPLY BOARD 684724-93A
Descrip. Type Val Specification Ref #
C 201 CAP 10 uF 20 % 16 V TANTALUM 525180A30
C 202 NONE
C 203 CAP 10 uF 20 % 16 V TANTALUM 525180A30
C 204 CAP 470 uF 20 % 10 V POL. ALUM. 525180S00
C 205 CAP 47 uF 20 % 6.3 V TANTALUM 525180B30
C 206 CAP 47 uF 20 % 10 V TANTALUM 525180M30
C 207 CAP 0.1 uF 10 % 50 V CERAMIC 1206 525083E37A
C 208 CAP 47 uF 20 % 6.3 V TANTALUM 525180B30
C 209 CAP 47 uF 20 % 6.3 V TANTALUM 525180B30
C 210 CAP 47 uF 20 % 6.3 V TANTALUM 525180B30
CR 201 DIODE TMBYV 10-20A SCHOTTKY 1A 20V MELF 525182D30
CR 202 DIODE TMBYV 10-20A SCHOTTKY 1A 20V MELF 525182D30
CR 203 DIODE RM 4004-G REDRESS. 1A 400V MELF 524842Z30
J 201 CONN MALE CONNECTOR 6
PIN
J 202 CONN MALE CONNECTOR 3
PIN 525273-00B
L 201 Induct 220 uH 0.5A r< OU = 0.6 ohm 525148B00
L 202 Induct 470 uH 0.34A r< OU = 1.2 ohm 525148C00
Q 201 TRAN SI 9953 DY MOS (X) P SO-08 525112N30
R 201 RES 1.8 ohm 5 % 500 ppm FILM.Ep 1206 525264S30
R 202 RES 1.8 ohm 5 % 500 ppm FILM.Ep 1206 525264S30
R 203 RES 470 Kohm 5 % 200 ppm FILM.Ep 1206 525085Y37
Z 202 IC LM 2936M REGULATOR +5V SO-08 525201Z30
Z 203 IC MAX 639 CSA (+5V) SO-08 525201V30
Z 204 IC MAX 635 ACSA (-5V) SO-08 525201W30