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2471F  INSTRUCTION MANUAL 

56-101-00220-B 

Intro 

09

 

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23

 

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08 

Page 1 of 13

 

INTRODUCTION 

 

1. PUBLICATION BREAKDOWN 

 

This user instruction manual establishes the standards of operation for Barfield’s 2471F 
Megohmmeter.   
 

 

Its purpose is to provide sufficient information for the personnel unfamiliar with this unit to 
understand it, identify its parts, and operate it in accordance with proper procedures, 
operating techniques, precautions and limitations. 

 
2.  INFORMATION PROVIDED WITH THE UNIT 

 

 
Besides this User Instruction Manual, the instrument is provided with the four items de-
scribed below. 

 

A.  The identification label, similar to Figure 1, is located on the back of the instrument and 

provides the following information:  

 

Manufacturer Name 

Designation of Equipment 

Equipment Part Number 

 

Equipment Model Number 

Equipment Serial Number 

 

Equipment Modification (if applicable) 

Equipment Options (if applicable) 

 

 

Figure 1:   

IDENTIFICATION LABEL

 

 

B

F

M/N

A B C

M

L

D

O

M N

P/N

H
S

E

D

F G

O P

R

Q

O A

J

S/N

T

T

E

P

C D

H

G

THE USA

MADE IN

K
U

J K

M

L

MEGOHMMETER TEST SET

101-00220

459-00043 rev. B

2471F

a Sabena technics company

Summary of Contents for 101-00220

Page 1: ...____________________________ BARFIELD INC Corporate Headquarters 4101 Northwest 29th Street Miami Florida 33142 www barfieldinc com Email gsesales barfieldinc com To buy sell or trade in this product click on the link below http www avionteq com Barfield 2471F MEGOHMMETER PN 101 00220 aspx www avionteq com ...

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Page 5: ...n or error found in this manual Inquiries should include specific questions and reference the publication title number chapter page figure paragraph and effective date Please send comments to TECHNICAL CUSTOMER SUPPORT GSTE BARFIELD INC P O BOX 025367 MIAMI FL 33102 5367 USA Telephone 305 894 5400 800 321 1039 Fax 305 894 5401 Email gsesales barfieldinc com ...

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Page 7: ... sure to complete and return a Revision Request Form to Barfield revision services and visit the company website http barfieldinc com for publication updates Additionally Barfield MUST have your name and address on file as a registered user of this equipment to ensure validation of the warranty Please complete the OWNER WARRANTY REGISTRATION card promptly This card ensures validation of the warran...

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Page 9: ...L 56 101 00220 B Rev 09 23 08 Page viii REVISION RECORD REV ECO REV DATE DESCRIPTION OF CHANGE A N A June 1986 Initial Release B 260 00729 Sep 23 2008 Company logo and contact information was updated Chapters were reorganized ...

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Page 11: ...epair facilities worldwide ensuring that this equipment will be serviced using proper procedures and certified instruments A Return Maintenance Authorization RMA number will be assigned dur ing this call to keep track of the shipment and the service BARFIELD PRODUCT SUPPORT DIVISION Shipping Address Telephone 305 894 5400 800 321 1039 Fax 305 894 5401 Barfield Inc 4101 NW 29th Street Miami Florida...

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Page 13: ...3 1 PRODUCT DESCRIPTION 1 GENERAL 5 2 THEORY 6 3 SPECIFICATIONS 6 2 OPERATING INSTRUCTIONS 1 GENERAL 9 2 APPLICATION NOTES 10 3 CARE AND MAINTENANCE 11 3 RECEIVING SHIPPING AND STORAGE 1 RECEIVING 13 2 SHIPPING 13 3 STORAGE 13 LIST OF FIGURES AND TABLES Page Figure 1 Identification Label 1 Figure 2 Owner Warranty Registration Card 2 Figure 3 Limited Warranty Statement Card 2 Figure 4 General View ...

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Page 15: ...ION PROVIDED WITH THE UNIT Besides this User Instruction Manual the instrument is provided with the four items de scribed below A The identification label similar to Figure 1 is located on the back of the instrument and provides the following information Manufacturer Name Designation of Equipment Equipment Part Number Equipment Model Number Equipment Serial Number Equipment Modification if applica...

Page 16: ... by the owner and returned to Barfield Inc within ten 10 days of purchase to ensure automatic update of printed matter and validation of warranty Figure 2 OWNER WARRANTY REGISTRATION CARD C The Limited Warranty Statement Card Figure 3 lists the manufacturer s obligation to the original purchaser Figure 3 LIMITED WARRANTY STATEMENT CARD ...

Page 17: ... shows the date of the last calibration and when the next cali bration is due It certifies the accuracy of the unit and lists the part number and serial number to which it applies 3 RECERTIFICATION This instrument has a one year recertification requirement Qualified technicians in a shop equipped with the necessary tooling and facilities must perform the maintenance required by this unit ...

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Page 19: ...itivity and dependability The meter is a rugge dized taut band suspension type which eliminates the need for pivots and jewels The high potential probe is shield guarded so that stray leakage through lead insulation will not affect the measurement accuracy 3 The output current of the 2471F is limited to a maximum of 30 microamperes even at the 500 volt test potential This current is well below hum...

Page 20: ...ton on the high po tential probe A single receptacle provides connection to all the test lead cable circuits and a shieldguard isolates the high potential lead from stray leakage resistance A panel switch connects the meter for testing of either of the battery circuits or for megohmmeter indication 3 SPECIFICATIONS 1 The electrical specifications of the instrument are indicated in Tables 1 and 2 T...

Page 21: ... are as follows Portable vinyl overall carrying case Eveready type with test cable compartment Plug in test cable leads Separable probe clip 4 Batteries required for instrument operation are as follows 3 each of 1 5 volt C cells Eveready E93 or equivalent 3 each of 1 5 volt AA cells Eveready E91 or equivalent ...

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Page 23: ...avoid small amount of battery drain 5 Place FUNCTION switch on MEGOHMS for megohmmeter operation 6 With RED test probe free from contact with external circuits or black probe press probe pushbutton and then turn FULL SCALE ADJUST as required to produce full scale deflection of meter pointer CAUTION THIS ADJUSTMENT MUST BE RECHECKED WHENEVER A DIFFER ENT VOLTAGE SELECTION IS MADE 7 Connect BLACK pr...

Page 24: ...e this source of leakage In hot wet climates even superior insulations may have conductive paths through fungus growths Clean ing and drying may remove most of such growths but if the spores are not killed the growth may return in a few days A fungus killing and growth inhibitor is recommended in such cases 5 A DC megohmmeter is not a substitute for an AC high voltage break down tester Al ternatin...

Page 25: ...onable care is exercised in operating and handling 1 Keep test set in its carrying case at all times to reduce the danger of damage from vi bration shock and moisture Exercise reasonable care to avoid dropping or excessive shock Protect from rain and exposure 2 Store in cool clean dry place to reduce contamination and battery deterioration RE MOVE BATTERIES IF TEST SET IS TO BE STORED FOR PROLONGE...

Page 26: ...ced to the right of the test set to receive the inverted panel it desirable Remove the four corner panel screws Withdraw the panel and rest it inverted to the right of its case 7 Push one of the battery holding clips aside while withdrawing the batteries When re placing cells make certain they are all inserted in the retainer tube in the same direc tion The small terminal plus end should connect t...

Page 27: ...become necessary for any reason to reship the instrument It is also recommended to inspect carefully the instrument for damage If damaged do not use it and immediately notify the carrier and the manufacturer 2 SHIPPING Use standard delicate electronic equipment packaging procedures when packing the instrument for reshipment 3 STORAGE Place a four ounce bag of desiccant inside the carrying case opt...

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