Fluke 515A Technical Manual
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Fluke 515A Technical Manual

Fluke 515A Technical Manual

Portable calibrator
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INSTRUMENT CALIBRATION PROCEDURE
PORTABLE CALIBRATOR
THIS PUBLICATION SUPERSEDES NAVAIR 17–20AQ–70
DATED OCTOBER 1974 – CHANGED 1 MAY 1978
DISTRIBUTION STATEMENT C. DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENCIES AND
THEIR CONTRACTORS TO PROTECT PUBLICATIONS REQUIRED FOR OFFICIAL USE OR FOR ADMINIS-
TRATIVE OR OPERATIONAL PURPOSES ONLY. OTHER REQUESTS FOR THIS DOCUMENT SHALL BE RE-
FERRED TO NAVY MEASUREMENT SCIENCE DIRECTORATE, NAVAL WARFARE ASSESSMENT DIVISION,
P.O. BOX 5000 CORONA, CA 91718–5000
DESTRUCTION NOTICE– FOR UNCLASSIFIED, LIMITED DOCUMENTS, DESTROY BY ANY METHOD
THAT WILL PREVENT DISCLOSURE OF CONTENTS OR RECONSTRUCTION OF THE DOCUMENT."
PUBLISHED BY DIRECTION OF COMMANDER NAVAL AIR SYSTEMS COMMAND
NAVAIR 17–20AQ–70
TECHNICAL MANUAL
FLUKE 515A
1 FEBRUARY 1995

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  • Page 1 NAVAIR 17–20AQ–70 TECHNICAL MANUAL INSTRUMENT CALIBRATION PROCEDURE PORTABLE CALIBRATOR FLUKE 515A THIS PUBLICATION SUPERSEDES NAVAIR 17–20AQ–70 DATED OCTOBER 1974 – CHANGED 1 MAY 1978 DISTRIBUTION STATEMENT C. DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENCIES AND THEIR CONTRACTORS TO PROTECT PUBLICATIONS REQUIRED FOR OFFICIAL USE OR FOR ADMINIS- TRATIVE OR OPERATIONAL PURPOSES ONLY.
  • Page 2 NAVAIR 17–20AQ–70 LIST OF EFFECTIVE PAGES Insert latest changed pages; dispose of superseded pages in accordance with applicable regulations. NOTE: On a changed page, the portion of the test affected by the latest change is indicated by a vertical line, or other change symbol, in the outer margin of the page.

  • Page 3: Table Of Contents

    NAVAIR 17–20AQ–70 TABLE OF CONTENTS Section Page Introduction and Description ............Equipment Requirements .

  • Page 4: Introduction And Description

    SECTION 1 INTRODUCTION AND DESCRIPTION 1.1 This procedure describes the calibration of the Fluke 515A Portable Calibrator. The instrument being calibrated is referred to herein as the TI (Test Instrument). 1.2 All comments concerning this procedure should be directed to Navy Measurement Science Directorate, Naval Warfare Assessment Division, P.O.

  • Page 5: Equipment Requirements

    NAVAIR 17–20AQ–70 Performance Test Characteristics Specifications Method The AV source output is set to AC voltage output Same as above obtain a reference null; then the TI output is substituted and the deviation from the reference–null is measured. Verified with an electronic Frequency output Tolerance: 400 Hz or 4 kHz;...
  • Page 6 2.4.1 Null detectors John Fluke 845AB (2 required) 2.4.2 Reference John Fluke 750A divider 2.4.3 DC voltage John Fluke 332A or 332B calibrator 2.4.4 DC transfer John Fluke 731B or 731A standard 2.4.5 Accessory kit Fluke P/N 6016–278887 Shielded low–thermal cable with leads ”...

  • Page 7: Preliminary Operations

    2.8 Alternating Range: 0 to 100V av Hewlett–Packard 745A voltage (AV) Uncertainty: 0.01 to 100V, to 20 kHz; source 0.023% John Fluke 5200A 2.9 Electronic counter Frequency range: 400 to 50 kHz Hewlett–Packard 5245L Uncertainty: 0.25% of input 2.10 Resistance Range: 0.01 ohm to 10.01 megohms...

  • Page 8: Calibration Process

    NAVAIR 17–20AQ–70 SECTION 4 CALIBRATION PROCESS NOTE Unless otherwise specified, verify the results of each test and take corrective action whenever the test requirement is not met, before proceeding. 4.1 LINE REGULATION TEST 4.1.1 Set the TI control(s) for a 10V dc output, and adjust the differential voltmeter control(s) as required for a reference null indication.
  • Page 9 4.2.5.1 Lift and connect each positive ( ) or Hi terminal of each voltage source (TI, Fluke 731A, and 332A or 332B) to each of its output negative (–) or Lo terminal.

  • Page 10: Dc Microvolts Output And Linearity Test

    NAVAIR 17–20AQ–70 NULL REF DIVIDER DET II 2.4.2 (BATTERY OPERATED) 2.4.1 INPUT OUTPUT – – – GUARD GUARD DC TRANSFER NULL DC VOLTAGE STANDARD DET I CALIBRATOR (BATTERY OPERATED) (BATTERY OPERATED) 2.4.3 – 2.4.4 2.4.1 – GUARD SENS Figure 2. DC Output Voltage Range Test Configuration 4.2.5.4 Reconnect the applicable test configuration (Figure 2 or 3).

  • Page 11: Dc Microvolts Output And Linearity Test Configuration

    NAVAIR 17–20AQ–70 2.4.1 2.4.2 NULL REF DIVIDER DET II (BATTERY OPERATED) OUTPUT INPUT – – – GUARD GUARD VOLTAGE DIVIDER OUTPUT 2.4.1 2.4.4 2.4.3 NULL DC TRANSFER DC VOLTAGE DET I – STANDARD CALIBRATOR (BATTERY (BATTERY OPERATED) OPERATED) – SENS Figure 3.

  • Page 12: Volt Dc Decade Test

    NAVAIR 17–20AQ–70 TI mV Dial Voltage Divider Tolerance Setting Setting Limits 1000 0.000999X 2 V or less 0.000699X ” 0.000499X ” 0.000199X ” 0.000099X ” 3 V or less *Connect the null detector II common lead to the low terminal of the TI, and wait until the thermal emf caused by the heat from the operator’s hands has subsided.

  • Page 13: Ac Frequency Response Test Up To 50 Khz

    NAVAIR 17–20AQ–70 4.4.3 Set the dc voltage standard for a 10V output and adjust it as required to establish a reference null indication on the 10 V range of the null detector. 4.4.4 For each of the following TI output and voltage divider setting verify that the null detector indication is within the tolerance limits listed.

  • Page 14: Ac Voltage Test

    4.5.4 Set the TTS galv switch to open and the sensitivity switch to low. NOTE Allow for stabilization time. The Fluke 540B may initially take as long as 10 minutes; however, it is considered stabilized when the galvanometer indication drifts less than 2 small divisions per minute in its most sensitive position.

  • Page 15: Frequency Test

    NAVAIR 17–20AQ–70 AV SOURCE DIFF VOLT METER SENS OUTPUT Figure 6. AC Voltage Test Configuration 4.6.2 Using each of the following equipment settings tabulated below, perform calibration as follows: 4.6.2.1 Establish a reference null on the differential voltmeter 0.1% null range by adjusting the differential voltmeter dial(s).

  • Page 16: Resistance Test

    NAVAIR 17–20AQ–70 TI Output Settings Tolerance Limits (Volts) (Freq) (Hz) 400 Hz to 404 4 kHz 3960 tp 4040 50 kHz 47500 to 52500 4.8 RESISTANCE TEST 4.8.1 Using the leads specified in item 2.4.5, connect the TI to the resistance measuring system as shown in figure 7.
  • Page 17 NAVAIR 17–20AQ–70 4.8.10 Set the measuring system output switch to – (negative), and obtain a resistance measurement by repeating steps 4.8.5 through 4.8.9. 4.8.11 Average the resistance measurement obtained in steps 4.8.9 and 4.8.10. Verify that the average value (residual resistance) is 150 m or less.

  • Page 18: Navy Calibration Checklist

    NAVAIR 17–20AQ–70 CALIBRATION CHECKLIST TEST INST (S) Fluke 515A Portable Calibrator NA 17–20AQ–70 SER. NO. PROC. NO. MFG. MODEL PROCEDURE MEASURED VALUES FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN CALIBRATION TOLERANCES STEP TOL (6) Line Regulation Test 4.1.2 Line voltage 105 ––...
  • Page 19 NAVAIR 17–20AQ–70 CALIBRATION CHECKLIST TEST INST (S) Fluke 515A Portable Calibrator NA 17–20AQ–70 SER. NO. PROC. NO. MFG. MODEL PROCEDURE MEASURED VALUES FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN CALIBRATION TOLERANCES STEP TOL (6) AC Frequency Response Test up to 50 KHz...

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