barfield 2312G-8 User Instruction Manual

2312g series turbine temperature indicating system test set

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2312G Turbine Temperature Indicating System Test Set
This Manual is applicable for the following Models and Parts Numbers:
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Miami, Florida 33142
www.barfieldinc.com
Email: gsesales@barfieldinc.com
USER INSTRUCTION MANUAL
BARFIELD M/N 2312G Series
56-101-00550-D
November 7, 2014
_________________________________
BARFIELD, INC.
Model Number
2312G-8
2312G-15
2312G-22
2312G-16A
2312G-25
2312G-8
(w/o case)
Part Number
101-00550
101-00551
101-00552
101-00554
101-00555
101-00557

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  • Page 1 2312G Turbine Temperature Indicating System Test Set USER INSTRUCTION MANUAL BARFIELD M/N 2312G Series 56-101-00550-D November 7, 2014 _________________________________ 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...
  • Page 2 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 Telephone (305) 894-5400...
  • Page 3 Although every effort has been made to provide the end user of this equipment with the most current and accurate information, it may be necessary to revise this manual in the future. Please be sure to complete and return a Revision Request Form to Barfield revision services and visit the company website, http://barfieldinc.com/, for publication updates.
  • Page 4 9 volt battery to provide the required 45 volts. The Converter coupled with the 9V battery are together inserted in place of the obsolete 45V battery and the Test Set specification are unchanged. 260-01058 11 / 07 / 14 Updated Barfield logo 56-101-00550-D 11/7/14 Page iv...
  • Page 5 A Return Maintenance Authorization (RMA) number will be assigned during this call, to keep track of the shipment and the service. BARFIELD PRODUCT SUPPORT DIVISION Shipping Address: Telephone (305) 894-5400 Barfield, Inc.
  • Page 6 2312G INSTRUCTION MANUAL THIS PAGE INTENTIONALLY LEFT BLANK 56-101-00550-D Blank 11/7/14 Page vi...
  • Page 7: Table Of Contents

    2312G INSTRUCTION MANUAL TABLE OF CONTENTS Contact Information Attention Page Revision Record Page List of Approved Repair Facilities Table of Contents List of Figures and Tables .................... CHAPTER PAGE INTRODUCTION PUBLICATION BREAKDOWN ..............1 INFORMATION PROVIDED WITH THE UNIT ..........1 RECERTIFICATION ..................
  • Page 8 2312G INSTRUCTION MANUAL 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 BATTERY AND CONVERTER ..................12  Table 1: Specifications Table ......................
  • Page 9: Introduction

    Instructions are also provided for testing system resistance and insulation. This publication contains the description, identification data, and operating procedures for the: 2312G-8, -15, -22, -16A, -25, and -8 (see paragraph 2.B. below) Turbine Temperature Indicating System Test Set, P/N’s 101-00550, -00551, -00552, -00554, -00555 and -00557, Figure 1 (hereafter referred to as the 2312G).
  • Page 10: Recertification

    2312G INSTRUCTION MANUAL B. The Owner's Warranty Registration card (Figure 2) is to be completed 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.
  • Page 11 2312G INSTRUCTION MANUAL Figure 3 LIMITED WARRANTY STATEMENT 56-101-00550-D INTRO 11/7/14 Page 3 / 20...
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  • Page 13: Product Description

    B. The 2312G is supplied with a vinyl carrying case with test cable compartment and a plug-in test cable (except 2312G-8, P/N 101-00557). 2. THEORY A. The low resistance ohmmeter circuits are the four-wire type. This circuit virtually eliminates the effects of lead wire resistance so that direct readings as low as 0.02 ohm are easily...
  • Page 14 2312G INSTRUCTION MANUAL C. The “FUNCTION” switch (5): (1) In the “RX1” position, permits resistance measurement readings in direct values on the panel meter (2) “RX1 / RX10” scale. (2) In the “RX10” position, the reading on the “RX1 / RX10” scale must be multiplied by 10. (3) In the “INS.”...
  • Page 15 2312G INSTRUCTION MANUAL Figure 4 2312G PANEL LAYOUT 56-101-00550-D CH. 1 11/7/14 Page 7 / 20...
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  • Page 17: Product Specifications

    FUNCTION POSITION RANGE R X 1 .02 to 10 Ohms R X 10 0.2 to 100 Ohms 2.5k to 1 megaohm LEAD (2312G-8) 7.8 to 8.2 Ohms (2312G-15) 14.5 to 15.5 Ohms (2312G-22) 21.0 to 23.0 Ohms (2312G-U) 0.55 to 0.75 Ohms ...
  • Page 18 2312G INSTRUCTION MANUAL THIS PAGE INTENTIONALLY LEFT BLANK 56-101-00550-D Blank 11/7/14 Page 10 / 20...
  • Page 19: Operation

    CONVERTER, 137-08002, DESIGNED SPECIFICALLY FOR AND INTENDED FOR EXCLUSIVE USE WITH A BARFIELD 2312G TEST SET (P/N 101-00550) TO SUPPLY THE 45 VOLTS NEEDED FOR THE INSULATION MEASUREMENT CIRCUITRY USING AN ALKALINE 9 VOLT BATTERY FOR POWER. THE 137-08002 CONVERTER COUPLED WITH A 9 VOLT BATTERY DO NOT TOGETHER CONSTITUTE A UNIVERSAL REPLACEMENT FOR A 45 VOLT NEDA-213 CELL.
  • Page 20 2312G INSTRUCTION MANUAL Disconnect the 45V battery leads from the 45V battery Connect a new 9 Volt alkaline battery to the 9V Input terminals of the Voltage Converter observing polarity. WARNING: POWERING THE 137-08002 FROM ANY SOURCE OTHER THAN AN ALKALINE 9 VOLT BATTERY MAY CAUSE DAMAGE TO THE CONVERTER.
  • Page 21 2312G INSTRUCTION MANUAL 2) Press the “CAL.” Pushbutton. Adjust the “CAL. ADJUST” control for full scale “0” on the panel meter’s “INS.” scale. NOTE: If deflection is not as specified, replace the 45-volt battery as outlined above. (b) To check the 1.5-volt battery used for all functions other than insulation: 1) Rotate the “FUNCTION”...
  • Page 22: Thermocouple Resistance Test Procedure

    2312G INSTRUCTION MANUAL This effect can be circumvented by taking two measurements: the first, with test leads connected in one polarity; and then, reversing the lead connections for the second measurement. The true value is equal to the average of the two readings (i.e., add the two readings and divide by two).
  • Page 23: Insulation Testing Procedure

    2312G INSTRUCTION MANUAL scale, check system for short circuits, bad connections, broken wiring, etc., then do as follows: (1) Disconnect at least one thermocouple lead from temperature indicator. (2) Insure 2312G meter reads zero (“0”). (3) Rotate the “FUNCTION” selector to “LEAD”. (4) Before connecting 2312G leads, press and hold RED “CAL.”...
  • Page 24: Indicator Test Procedure

    2312G INSTRUCTION MANUAL E. Press the BLACK “TEST” pushbutton while reading resistance on the “INS.” scale. NOTE: Resistance to ground must not be less than manufacturers’ specifications. F. Disconnect thermocouple leads at engine thermocouple bank, and reconnect one clip to each of the thermocouple leads.
  • Page 25 2312G INSTRUCTION MANUAL (3) Thermocouple lead resistance is not critical with this type of indicator, and usually need not be measured. B. Thermocouple Resistance Measurement (1) Disconnect aircraft power to indicator. (Refer to Aircraft Maintenance Manual). (2) Set meter pointer to zero (“0”) using meter bezel knob. (3) Disconnect electrical connector at rear of indicator.
  • Page 26 2312G INSTRUCTION MANUAL (7) Press and 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: Indicator must agree with 2312G reading to within manufacturers’ specifications. 56-101-00550-D CH.
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  • Page 28: Receiving, Shipping, And Storage

    2312G INSTRUCTION MANUAL CHAPTER 4: RECEIVING, SHIPPING, AND STORAGE 1. RECEIVING No special unpacking procedures are necessary. It is recommended that the factory-shipping container and packing materials be retained should it become 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.

This manual is also suitable for:

2312g-252312g-222312g-152312g-16a

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