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barfield DC400 User Instruction

Adapter module
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Corporate Headquarters
4101 Northwest 29th Street
Miami, Florida 33142
www.barfieldinc.com
Email:
gsesales@barfieldinc.com
Barfield Inc. Confidential and Proprietary Information.
This document and all the information contained herein is the sole property of Barfield Inc.
No intellectual property rights are granted by the delivery of this document or the disclosure of its content.
This entire document is proprietary information and shall not be reproduced or disclosed to a third party without
the express written consent of Barfield Inc.
This document and its content shall not be used for any purpose other than that for which it is supplied.
DC400/A
_________________________________________
DC400 OR DC400A
P/N's 101-00800 or 101-00850
Digital DC Fuel Quantity Test Sets
BEECHCRAFT MODELS
1900/1900C, UA and UB
1900C/1900D, UC and UE
Copyright © 2015 Barfield Inc. All Rights Reserved.
Adapter Module
USER INSTRUCTION SUPPLEMENT
M/N DC400/A, P/N 101-00802
Doc. P/N: 61-101-00802.EF2
Revision G
January 7, 2015
MOD C, used with
For
and

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  • Page 1 Barfield Inc. Confidential and Proprietary Information. This document and all the information contained herein is the sole property of Barfield Inc. No intellectual property rights are granted by the delivery of this document or the disclosure of its content.
  • Page 2 THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 3 APPLICABILITY This manual is one of a family of manuals, each developed to address an individual Adapter Module especially designed for the DC-400 / DC-400A Digital Fuel Quantity Test Sets. It contains complete instructions for the maintenance, inspection, testing, troubleshooting, and calibration of the Gull Airborne and Ragen Data Fuel Quantity Systems.
  • Page 4 THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 5 List of Approved Repair Facilities and Recertification Information were added (page iv) 260-01003 Apr/29/14 Revised per feedback from Beech and added section 7. System Wiring Integrity Test. 260-01076 Jan/07/15 Updated Barfield logos. 61-101-00802.EF2 (REV. G) January 7, 2015 Page v...
  • Page 6 THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 7 P.O. Box 025367 Miami, FL 33102-5367 RECERTIFICATION Barfield Adapter Module, P/N 101-00802, has a one-year recertification requirement. Qualified technicians in a shop equipped with the necessary tooling, facilities, and Barfield-approved procedures must perform the maintenance required by this unit. 61-101-00802.EF2 (REV. G)
  • Page 8 THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 9 CONTACT INFORMATION USERS ARE REQUESTED TO NOTIFY THE MANUFACTURER OF ANY DISCREPANCY, OMISSION OR ERROR FOUND IN THIS SUPPLEMENT. PLEASE SEND YOUR COMMENTS TO: BARFIELD, INC. ATTN: GSTE 4101 NORTHWEST 29 STREET MIAMI, FL 33142 TELEPHONE (305) 894-5400 (800) 321-1039 FAX (305) 894-5401 EMAIL ADDRESS: gsesales@barfieldinc.com...
  • Page 10 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 11: Table Of Contents

    TABLE OF CONTENTS Applicability Revision Record List of Approved Repair Facilities / Recertification Contact Information Table of Contents List of Tables PAGE 1. Description ......................1 2. Operation 1. System Insulation Test ................. 3 2. Insulation Test (Individual Probes) ............... 8 3.
  • Page 12 THIS PAGE INTENTIONALLY LEFT BLANK...
  • Page 13 LIST OF TABLES PAGE 1. Conductance to Megaohm Conversion ..............6 2. Tank Capacitance Empty ................... 14 3. Tank Capacitance Full ....................14 4. Probe Capacitance Empty (1900/1900C, UA and UB) ..........18 5. Probe Capacitance Empty (1900C/1900D, UC and UE) ........... 18 6.
  • Page 14 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 15: Description

    (1) Refer to the Aircraft Maintenance Manual for specific procedures and maintenance practices. Equipment Required (or equivalent) (1) DC400A Digital Fuel Quantity Test Set, P/N 101-00850 or the DC400 Digital Fuel Quantity Test Set, P/N 101-00800 (2) Barfield Instruction Manual 56-101-00850 (DC400A) or Barfield...
  • Page 16 (3) Failure to calibrate the system could result in an inaccurate fuel quantity indication. Disclaimer BARFIELD, INC., neither a vendor nor supplier of fuel quantity systems or an airframe manufacturer, has no control over calibration figures or procedures. A variant between actual values and those recommended may exist.

  • Page 17: System Insulation Test

    CHAPTER 2 OPERATION SYSTEM INSULATION TEST Note: Refer to PRECAUTIONS and PRELIMINARY sections (Chapter 1). Note: This test may be performed with either wet or dry tanks. Aircraft Preparation (1) Disconnect the aircraft battery. Caution: When lowering or raising pilot fuel panel, insure aircraft battery is disconnected.
  • Page 18 Connecting Test Set (1) Set up the test set (T/S) as shown in Figures 1 and 2. (2) Connect the test set ACFT connector to the aircraft wiring plug removed from the indicator. (3) Connect the test set ACFT connector to the ACFT connector of the adapter cable.
  • Page 19 Figure 2 Insulation Test Connector Setup Test (1) Set the test set ON/OFF switch to ON. (2) Allow time for the test set display to stabilize. (3) Verify that the test set reading is less than 50nS. Note: The display reading is in nS (nano Siemens). To get an equivalent MΩ...

  • Page 20: Conductance To Megaohm Conversion

    Test Set Display Reading Equivalent MΩ Less than 1 1000 100. 200. 500. 1,000. Greater than 1,000 Example: 1000/50 = 20 MΩ Table 1 Conductance to Megaohm Conversion (4) Rotate the INS TEST POINTS switch through each remaining position. (5) Allow test set to stabilize. Sometimes the reading never completely stabilizes.
  • Page 21 (12) Allow test set to stabilize. Sometimes the reading never completely stabilizes. If the reading is in the acceptable range after 30 seconds it should be considered OK. (13) Verify the test set reading is less than 50nS at each position except SIG/RTN.

  • Page 22: Insulation Test (Individual Probes)

    INSULATION TEST (INDIVIDUAL PROBES) Note: This test may be performed with wet or dry tanks. Aircraft Preparation (1) Access the interconnect fuel line receptacle (left or right) which is located under the panel’s just outboard of the engine nacelles. Caution: When breaking or making indicator connections, insure applicable circuit breakers are open.
  • Page 23 INSULATION TEST Figure 3 1900 / 1900C (UA & UB) Individual Probes 61-101-00802.EF2 (REV. G) CH. 2 January 7, 2015 Page 9 of 44...
  • Page 24 INSULATION TEST Figure 4 1900C / 1900D (UC & UD) Individual Probes Test Procedure (1) Rotate the 1900/1900C or 1900D Probe Selector Unit switch to the ALL position. (2) Set the T/S ON/OFF switch to ON. (3) Allow time for the T/S display to stabilize. Sometimes the reading never completely stabilizes.
  • Page 25 (7) At the Fuel Probe Selector Unit, select a probe. (8) Rotate the INS TEST POINTS selector to each position for each probe and test every probe. Note: If testing aircraft serial numbers UC or UE and using Probe Selector Unit P/N 118-389004/935, set the ALL/EACH switch to EACH, the MAIN/AUX switch to MAIN.

  • Page 26: System Capacitance Test

    SYSTEM CAPACITANCE TEST Note: Refer to PRECAUTIONS and PRELIMINARY sections (Chapter 1). Aircraft Preparation (1) Disconnect aircraft battery. Caution: When lowering or raising pilot fuel panel, insure aircraft battery is disconnected. (2) Access the indicator. (3) Open the circuit breakers. (4) Disconnect the aircraft wiring plug located at the indicator.
  • Page 27 Figure 6 Figure System Capacitance Test Connector Setup (2) Connect the test set ACFT connector to the aircraft wiring plug removed that is from indicator. (3) Do not connect the test set IND connector. Test (1) Set the test set ON/OFF switch to ON. (2) If testing aircraft S/N’s UC or UE, set the aircraft fuel panel select switch to MAIN or TOTAL.

  • Page 28: Tank Capacitance Empty

    MAIN/TOTAL AUX/NAC Aircraft Type 1900 (UA) 141.6 157.7 173.0 1900C (UB) 1900C (UC) 156.3 159.3 162.2 63.1 64.1 65.1 1900D (UE) Table 2 Tank Capacitance Empty MAIN/TOTAL AUX/NAC Aircraft Type 1900 (UA) 233.3 259.2 285.1 ---- ---- ---- 1900C (UB) 1900C (UC) 292.6 295.6...

  • Page 29: Capacitance Test (Individual Probes)

    CAPACITANCE TEST (INDIVIDUAL PROBES) Note: Refer to PRECAUTIONS and PRELIMINARY sections (Chapter 1). Aircraft Preparation Caution: When breaking or making indicator connections, insure that the applicable circuit breaker(s) are open. (1) Access the Interconnect Fuel Line Receptacle, left or right, located under the panel’s just outboard of the engine nacelles (if testing UA or UB serial numbers) or, access the Main Harness disconnect and Aux Harness disconnect (if testing the UC or UE serial numbers).
  • Page 30 Connecting Test Set (1) Connect the T/S as shown in Figure 7 or Figure 8. (2) Connect the appropriate Probe Selector Unit to the Interconnect Fuel Line Receptacle connector (if testing 1900/1900C, UA and UB) or to the Main Harness disconnect and Aux Harness disconnect (if testing UC and UE).
  • Page 31 Figure 8 Capacitance Test 1900C / 1900D, UC and UE Individual Probes Test Procedure (1) Rotate the Probe Selector Unit switch to ALL. (2) Set the T/S switch to ON. (3) Press and hold in the PRESS TO READ CAP (pF) pushbutton. (4) Verify that the value shown is within tolerances specified in Table 4, Table 5 (for empty tanks) or Table 6, or Table 7 (for full tanks).
  • Page 32 AIRCRAFT 1900/1900C, UA and UB TANK UNIT BEECH PROBE P/N Integral Outboard 114-389001-29, -31 17.91 19.90 21.89 Integral Inboard 114-389001-25, -27 20.03 22.25 24.48 Integral Combined 114-389001-25, -27 or –29 and -31 37.94 42.15 46.37 Leading Edge 114-389001-1, -3 21.01 23.34 25.67 Outboard...
  • Page 33 AIRCRAFT 1900/1900C, UA and UB TANK UNIT BEECH PROBE P/N Integral Outboard 114-389001-29, -31 26.4 29.36 32.3 Integral Inboard 114-389001-25, -27 31.2 34.68 38.1 Integral Combined 114-389001-25, -27 or –29 and -31 57.6 64.04 70.4 Leading Edge 114-389001-1, -3 32.1 35.65 39.2 Outboard...
  • Page 34 (6) Set the 200 (pF)/1000 (pF) switch to 200 (pF). (7) Press and hold the PRESS TO READ CAP (pF) pushbutton. (8) If testing 1900/1900C, UA and UB, rotate the Probe Selector Unit switch until all probes are tested. (9) If testing a/c serial numbers UC and UE, and using Probe Selector Unit P/N 118-389004/935, set the ALL/EACH switch to EACH, the MAIN/AUX switch to MAIN.

  • Page 35: Indicator Test

    INDICATOR TEST Note: Refer to PRECAUTIONS and PRELIMINARY sections (Chapter 1). Note: The Indicator Bench Test (Chapter 3, Section 1) may be performed in place of the Indicator Test. Aircraft Preparation (1) Disconnect the aircraft battery. Caution: When lowering or raising the pilot fuel panel, insure aircraft battery is disconnected.
  • Page 36 Figure 9 Indicator Test Set Connection Figure 10 Indicator Test Set Connection 61-101-00802.EF2 (REV. G) CH. 2 January 7, 2015 Page 22 of 44...
  • Page 37 Test Procedure (1) Set the test set ON/OFF switch to ON. (2) Set the CAP SIM (pF) 100’s to 1. Set the 10’s thumbwheels to 5 for all 1900 models. (3) Press and hold the PRESS TO READ CAP (pF) pushbutton while adjusting CAP SIM (pF) control knob to obtain a test set reading of 156.5 pF (for UA or UB) or a reading of 159.4 pF (for UC or UE) (4) Rotate the TEST FUNCTION switch to IND AMP.
  • Page 38 (23) Push and hold the PRESS TO READ CAP (pF) pushbutton while adjusting CAP SIM (pF) control knobs. Verify that the T/S displays 64.1 pF. (24) Release pushbutton. (25) Set the MAIN/TOT-AUX/NAC switch to AUX/NAC. (26) Rotate TEST FUNCTION switch to IND AMP. (27) Verify the indicator reads 0 lbs.
  • Page 39 (50) Press and hold the PRESS TO READ CAP (pF) pushbutton while adjusting the CAP SIM (pF) control knob to obtain a test set display of 246.0 pF for the UA and UB or 261.0 pF for the UC and UE serial numbers.

  • Page 40: Preferred Calibration Test (With Dry Tanks)

    PREFERRED CALIBRATION TEST (WITH DRY TANKS) Note: See PRECAUTIONS and PRELIMINARY sections (Chapter 1). Note: When draining facilities are not readily available, the Alternate Calibration Test (Chapter 3, Section 2) may be used as a temporary measure. The preferred calibration is done with dry tanks. This method is the most accurate for calibration since the indicator zero reading is set to the actual empty tank condition.

  • Page 41: Add For Full

    Test (1) Set test set ON/OFF switch to ON. (2) Press and hold PRESS TO READ CAP (pF) pushbutton while adjusting CAP SIM (pF) control knob to obtain a test set reading according to the following table. Aircraft Add For Full Simulator (pF) 1900/1900C, 104.0 UA and UB...
  • Page 42 Disconnecting or reconfiguring (1) Open the circuit breakers. (2) Disconnect the test set ACFT connector from aircraft wiring plug or the adapter cable. (3) Disconnect the test set IND connector from the indicator or adapter cable. (4) Disconnect the adapter cable from the aircraft wiring and indicator. (5) Connect the aircraft plug to indicator.

  • Page 43: System Wiring Integrity Test

    SYSTEM WIRING INTEGRITY TEST Note: Refer to PRECAUTIONS and PRELIMINARY sections (Chapter 1). Note: Insure that the Insulation, Capacitance, Indicator test and Preferred Calibration have all been accomplished with satisfactory results and that the tanks are still dry prior to attempting this test. This test is used to determine whether there exists an inline (series) resistance problem in the aircraft wiring.
  • Page 44 Test (1) Set the test set ON / OFF switch to ON. (2) Set the aircraft fuel panel select switch to MAIN or TOTAL. (3) Push and hold the test set PRESS TO READ CAP (pF) pushbutton. (4) Record the capacitance value measured. (5) Release the pushbutton.
  • Page 45 (19) Set the CAP SIM (pF) 100’s and the 10’s thumbwheels to the closest approximation of the required value as per Table 4. (20) Press and hold PRESS TO READ CAP (pF) pushbutton while adjusting CAP SIM (pF) control knob to obtain a test set reading according to Table.4.
  • Page 46 Note: The battery must be connected; the battery switch set to ON position and the circuit breakers closed for this test. (37) Rotate the TEST FUNCTION switch to PROBE(S). (38) Set the test set ON / OFF switch to ON. (39) Set the aircraft fuel panel select switch to AUX NAC and hold if...
  • Page 47 exist, disconnect and clean the wing harness connector with contact cleaner and gently blow dry. If the condition persists disconnect and clean the fuel panel connector behind the LH sidewall below the fuel panel in the same manner. When cleaning the connectors be sure to include the test sets connectors.

  • Page 48: Probes Bench Test

    CHAPTER 3 ALTERNATE TESTS PROBES BENCH TEST Note: See PRECAUTIONS and PRELIMINARY sections (Chapter 1). Test Set Preparation (1) Set the test set ON/OFF switch to OFF. (2) Rotate the TEST FUNCTION switch to PROBE(S). (3) Set the INSULATION/SYSTEM switch to SYSTEM. (4) Set the MAIN/TOT-AUX/NAC switch to MAIN/TOT.
  • Page 49 (4) Determine the P/N and physical makeup of the probe-under-test. (5) Connect the color-coded pin sockets from the probe adapter to the matching color of the probe lead wire pins or the alligator clips or probe threaded terminals by thread size and color as applicable. (6) Connect the socket pin ground lead of the probe adapter to the ground clip pigtail of the probe adapter.
  • Page 50 (14) With the INS TEST POINT switch at SIG/RTN position, verify the test set display shows a value between 1500 and an “over range” of 1. Note: If testing the 1900/1900C, UA and UB, an over range also appears when the INS TEST POINT switch is in LO-Z/RTN position and P/N 114-389001-17 Probe (Gull Airborne) is installed in the collector tank.

  • Page 51: Indicator Bench Test

    INDICATOR BENCH TEST Note: See PRECAUTIONS and PRELIMINARY sections (Chapter 1). Note: Failure to calibrate the system after performing the indicator bench test will result in an inaccurate fuel quantity reading. Test Set Preparation (1) Set the ON/OFF switch to OFF. (2) Rotate the TEST FUNCTION switch to CAP SIM CAL (NORM SYS).
  • Page 52 Figure 14 Indicator Bench Test Connection Test Procedure (1) Set the test set ON/OFF switch to ON. (2) Set the CAP SIM (pF) 100’s to 1. Set the 10’s thumbwheels to 5 for all 1900 models. (3) Press and hold the PRESS TO READ CAP (pF) pushbutton while adjusting CAP SIM (pF) control knob to obtain a test set reading of 156.5 pF (for UA and UB serial numbers) or 159.4 (for UC and UE serial numbers).
  • Page 53 (11) Set the 200 (pF)/1000 (pF) switch to 1000 (pF). (12) Set the CAP SIM (pF) 100’s thumbwheel to 2. Set the 10’s thumbwheel to “5” (for S/N’s UA and UB); set to 9 (for UC and UE S/N’s). (13) Push and hold the PRESS TO READ CAP (pF) pushbutton while adjusting CAP SIM (pF) control knob to obtain a test set reading of 260.9 pF (for S/N’s UA and UB);...
  • Page 54 (34) Press and hold the PRESS TO READ CAP (pF) pushbutton while adjusting the CAP SIM (pF) control knob to obtain a test set reading of 178.9 pF (UA and UB) or 185.0 pF (UC and UE). (35) Release pushbutton. (36) Rotate the TEST FUNCTION switch to IND AMP.

  • Page 55: Alternate Calibration (Wet Tanks)

    ALTERNATE CALIBRATION (WET TANKS) Note: The Alternate Calibration should only be used as a temporary measure when draining the facilities is not available. Recalibrate the aircraft using the Preferred Calibration method at the first opportunity. The Alternate Calibration applies the nominal empty tank capacitance value to the system by test set for the indicator zero reading.
  • Page 56 Figure 15 Alternate Calibration Test Set Setup Figure 16 Alternate Calibration Test Set Setup 61-101-00802.EF2 (REV. G) CH. 3 January 7, 2015 Page 42 of 44...
  • Page 57 Test (1) Set the test set ON/OFF switch to ON. (2) Set the CAP SIM (pF) 100’s and the 10’s thumbwheels to the digits necessary to adjust the test set display to a MAIN/TOTAL nominal value listed in Table 2 for the aircraft-under-test. (3) Press and hold the PRESS TO READ CAP (pF) pushbutton while adjusting the CAP SIM (pF) control knob to obtain a test set reading MAIN/TOTAL Nom (nominal) value reading for the aircraft referenced...
  • Page 58 (20) Set the CAP SIM (pF) 100’s and the 10’s to the digits required to adjust the test set display to an AUX/NAC nominal value referenced in Table 2. (21) Press and hold PRESS TO READ CAP (pF) pushbutton while adjusting CAP SIM (pF) control knob to obtain the test set AUX/NAC nominal value reading for the aircraft listed in Table 2.

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