background image

NAVAIR 17-20AQ-347 

 
 
 

TECHNICAL MANUAL 

 

INSTRUMENT CALIBRATION PROCEDURE 

 

DIGITAL MULTIMETER 

 

WAVETEK 

1271 

WITH OR WITHOUT 

OPT12 OR 20 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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 

DISTRIBUTION STATEMENT C.  DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENCIES AND THEIR 
CONTRACTORS TO PROTECT PUBLICATIONS REQUIRED FOR OFFICIAL USE OR FOR ADMINISTRATIVE OR 
OPERATIONAL PURPOSES ONLY.  OTHER REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED TO 
MEASUREMENT SCIENCE DEPARTMENT, CORONA DIVISION, NAVAL SURFACE WARFARE CENTER, 
P.O. BOX 5000, CORONA, CA 92878-5000. 

AQ-

347 

AQ-

347 

1 AUGUST 2007 

THIS PUBLICATION SUPERSEDES NAVAIR 17-20AQ-347 

DATED 1 SEPTEMBER 1997 

Summary of Contents for 17-20AQ-347

Page 1: ...N OF COMMANDER NAVAL AIR SYSTEMS COMMAND DISTRIBUTION STATEMENT C DISTRIBUTION AUTHORIZED TO U S GOVERNMENT AGENCIES AND THEIR CONTRACTORS TO PROTECT PUBLICATIONS REQUIRED FOR OFFICIAL USE OR FOR ADMI...

Page 2: ...he document NOTE On a revised page with the exception of the Title the A and the i pages the technical changes are indicated by a vertical line in the outer margin of the page Page No Revision Page No...

Page 3: ...0 4 3 Resistance Tests Option 20 Only 15 4 4 Calibration Factors 16 4 5 Securing The TI 17 Navy Calibration Checklist 19 ILLUSTRATIONS Figure Page 1 DC Volts Reference Setup 20 V or less 5 2 DC Voltag...

Page 4: ...curement specifications for the Wavetek 1271 TI a SPECIAL CALIBRATION tag shall be affixed to the TI upon completion of calibration indicating that the TI was calibrated to the 12 month Fluke 8505 850...

Page 5: ...100 kHz 0 308 iv 1000 V range 10 to 40 Hz iv 600 V x 02 0 152 0 2 in 40 Hz to 20 kHz iv 600 V x 02 0 025 0 2 in 20 to 50 kHz iv 600 V x 02 0 0825 0 2 in 50 to 100 kHz iv 600 V x 02 0 308 0 2 in NOTES...

Page 6: ...1000 V Uncertainties 100 mV 0 003 iv 1 V 0 000825 iv at 1 V 10 V 6 ppm at 19 V 100 V 0 001 iv at 100 V 1000 V 0 001 iv at 1000 V Fluke 7105A Required Components 2 1 1 DV source Fluke 332B or 335A 2 1...

Page 7: ...auxiliary equipment controls as necessary to avoid damage to the equipment and so that dangerous voltages will not be present on output terminals when the power switches are turned on 3 2 Ensure that...

Page 8: ...m up for 4 hours Ensure that the TI CAL switch TI rear panel is set to DISABLE DV SOURCE NULL DETECTOR VOLTAGE DIVIDER HI LO GND ERS 1 1 1 0 GUARD OUTPUT Figure 1 DC Volts Reference Setup 20 V or less...

Page 9: ...isted the CF value is 100 0 001 0 01 0 001000 V if the AC DC difference is a 0 001 the CF value would be 100 0 001 0 01 0 001000 V 3 8 Set all other calibration equipment controls as necessary to avoi...

Page 10: ...on is within the tolerance limits listed in the following table TI RANGE Nominal V Tolerance Limits V 100 mV 0 0000 3 0 0090 3 to 0 0090 3 1 V 0 000000 0 000009 to 0 000009 10 V 0 00000 0 00009 to 0 0...

Page 11: ...ithin the tolerance limits listed in the following table TI RANGE Divider Setting Nominal V Tolerance Limits V 100 mV 0 0005000 10 0000 3 9 9906 3 to 10 0094 3 100 mV 0 0050000 100 0000 3 99 9869 3 to...

Page 12: ...set the reference divider standard cell dials for the value of the 1 volt reference 4 1 8 Zero the null detector on its 10 V range then set its OPR ZERO switch to OPR Set the DV source power switch to...

Page 13: ...ntain a null on the null detector 10 V range taking precautions as required to avoid meter pegging TI RANGE V Input V Output V DV Source V Nominal V Tolerance Limits V 100 100 100 100 000 100 000 99 9...

Page 14: ...hat is applicable to the frequency of the measurement listed in the following table For example if the measurement frequency is 20 kHz and the CF at 20 kHz from step 3 6 is 0 000030 set the DV source...

Page 15: ...to open sensitivity switch to low and polarity switch to the opposite setting as in step 4 2 3 3 NOTE If the TTS polarity switch has been disconnected skip to step 4 2 3 12 4 2 3 8 Repeat steps 4 2 3...

Page 16: ...and the sensitivity switch to low 4 2 6 Set the TTS mode switch to AC search select the correct range so that the percent input meter indicates in the green area and then switch the mode switch to th...

Page 17: ...to the frequency of measurement as obtained in step 4 2 3 8 4 2 11 2 Verify that the TI indication is within the tolerance limits listed in the following table AV Source TI RANGE mV Output Volts Freq...

Page 18: ...ton Select the Resl function Select 5 digit resolution Depress the TI OHMS pushbutton 4 3 3 Connect a short across the 10 standard resistor 4 3 4 Depress the TI ZERO pushbutton Wait until the TI BUSY...

Page 19: ...out of tolerance 4 4 2 To begin setting the calibration factors engage the CAL switch on the rear panel of the TI 4 4 3 Perform an INTERNAL CHARACTERIZATION This is accomplished by performing the foll...

Page 20: ...ted at this point Use the TI SECOND RUN checklist column to repeat the necessary steps and verify that these steps are now within the given tolerance limits 4 5 2 Affix a SPECIAL CALIBRATION label to...

Page 21: ...0 009 4 1 4 Range Divider V V 100 mV 0 0005000 10 0000 3 9 9906 3 to 10 0094 3 0 0050000 100 0000 3 99 9869 3 to 100 0131 3 1 V 0 0050000 0 100000 0 099989 to 0 100011 0 0500000 1 000000 0 999967 to...

Page 22: ...to 1 00308 1 MHz 1 00000 0 95510 to 1 04490 4 2 4 10 V 10 Hz 10 0000 9 9848 to 10 0152 50 Hz 10 0000 9 9975 to 10 0025 1 kHz 10 0000 9 9975 to 10 0025 20 kHz 10 0000 9 9975 to 10 0025 50 kHz 10 0000 9...

Page 23: ...960 3 to 100 040 3 20 kHz 100 000 3 99 960 3 to 100 040 3 50 kHz 100 000 3 99 918 3 to 100 082 3 100 kHz 100 000 3 99 692 3 to 100 308 3 4 3 Resistance Tests Option 20 only 4 3 6 10 range ref 10 0000...

Reviews: