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2312G INSTRUCTION MANUAL

56-101-00550-D

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11/7/14

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Summary of Contents for 2312G-15

Page 1: ...________ BARFIELD INC This Manual is applicable for the following Models and Parts Numbers Model Number Part Number 2312G 8 101 00550 2312G 15 101 00551 2312G 22 101 00552 2312G 16A 101 00554 2312G 25...

Page 2: ...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...

Page 3: ...e 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...

Page 4: ...07 14 The 45 VOLT battery NEDA 213 CELL used to power the Insulation function is no longer in production by any known source The Voltage Converter P N 137 08002 was designed to be used in conjunction...

Page 5: ...pair facilities worldwide ensuring that this equipment will be serviced using proper procedures and certified instruments A Return Maintenance Authorization RMA number will be assigned during this cal...

Page 6: ...2312G INSTRUCTION MANUAL 56 101 00550 D Blank 11 7 14 Page vi THIS PAGE INTENTIONALLY LEFT BLANK...

Page 7: ...1 PRODUCT DESCRIPTION 1 GENERAL DESCRIPTION 5 2 THEORY 5 3 SWITCHING FUNCTIONS 5 2 PRODUCT SPECIFICATIONS 1 PHYSICAL DATA 9 2 SPECIFICATIONS 9 3 OPERATION 1 GENERAL OPERATING INSTRUCTIONS 11 2 THERMOC...

Page 8: ...Page viii LIST OF FIGURES AND TABLES Page Figure 1 IDENTIFICATION LABEL 1 Figure 2 OWNER WARRANTY REGISTRATION CARD 2 Figure 3 LIMITED WARRANTY STATEMENT 3 Figure 4 2312G PANEL LAYOUT 7 Figure 5 BATT...

Page 9: ...emperature Indicating System Test Set P N s 101 00550 00551 00552 00554 00555 and 00557 Figure 1 hereafter referred to as the 2312G Models U and 8A P N s 101 00553 and 101 00556 respectively are speci...

Page 10: ...the manufacturer s obligation to the original purchaser D The Certificate of Calibration Each new unit and re certified unit is delivered with a Certificate of Calibration that shows the date of the...

Page 11: ...2312G INSTRUCTION MANUAL 56 101 00550 D INTRO 11 7 14 Page 3 20 Figure 3 LIMITED WARRANTY STATEMENT...

Page 12: ...2312G INSTRUCTION MANUAL 56 101 00550 D Blank 11 7 14 Page 4 20 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 13: ...ften reveals leakage that is not detected by conventional low voltage ohmmeters but is well within circuit insulation limitations C A Wheatstone Bridge circuit provides an accurate direct reading of l...

Page 14: ...tion resistance 2 5k to 1 megaohm is displayed on panel meter s INS scale 4 In the LEAD position lead resistance value is displayed on the panel meter s LEAD RES scale 5 In the IND position the 2312G...

Page 15: ...2312G INSTRUCTION MANUAL 56 101 00550 D CH 1 11 7 14 Page 7 20 Figure 4 2312G PANEL LAYOUT...

Page 16: ...2312G INSTRUCTION MANUAL 56 101 00550 D Blank 11 7 14 Page 8 20 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 17: ...ATIONS Specifications for all models of the 2312G are identical except for the LEAD function circuit The Lead measuring circuit and the simulating resistance in the indicator function are the value of...

Page 18: ...2312G INSTRUCTION MANUAL 56 101 00550 D Blank 11 7 14 Page 10 20 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 19: ...er pad placed to the right of the 2312G to receive the inverted panel is desirable Remove the four 4 corner screws Withdraw the panel and rest it to the right of its case b Insert the 1 5 volt size D...

Page 20: ...TER e Carefully install the coupled 9V battery and Converter pair into the 2312G 45V battery clips and terminals f Re install the 2312G panel assembly into the case and replace the 4 panel screws 3 Op...

Page 21: ...the top of the2312G before attempting to operate the 2312G NOTE For ALL battery checks the test cable plug must be inserted and test lead clips disconnected 6 Adjust meter pointer with meter bezel kn...

Page 22: ...re a good electrical connection Press the BLACK TEST pushbutton while reading resistance directly on the RX1 RX10 scale NOTE If individual thermocouple is to be measured disconnect at least one termin...

Page 23: ...hbutton again 1 Meter pointer moves down scale abruptly striking pointer stop then comes to rest near lower end scale with resistance much less than desired value 2 Meter pointer comes to rest at or n...

Page 24: ...selector to IND E Connect test lead clips to indicator terminals Observe polarity alumel is negative and connects to the 2312G BLACK clip Chromel is positive and connects to the 2312G RED clip F Press...

Page 25: ...n 3 Approximate System Lead Resistance Test paragraphs B through F NOTE Lead resistance is not critical generally in the order of 5 to 100 ohms No precision measurement need be made D Insulation Testi...

Page 26: ...d hold the TEST switch while positioning the CAL ADJUST control for desired test points as read on the 2312G meter s C scale 8 Compare readings of indicator under test with 2312G indications NOTE Indi...

Page 27: ...2312G INSTRUCTION MANUAL 56 101 00550 D Blank 11 7 14 Page 19 20 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 28: ...come necessary to reship the 2312G It is also recommended that the 2312G and its carrying case be carefully inspected for damage If damaged immediately notify the carrier and the manufacturer 2 SHIPPI...

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