HP 431B Скачать руководство пользователя страница 3 | Manualshive

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PIN NO: 010318-001

By Order of the Secretary of the Army:

BERNARD W. ROGERS

General, United States Army

Chief of Staff

Official:

PAUL T. SMITH

Major General, United States Army

The Adjutant General

Distribution:

To be distributed in accordance with DA Form 12-34A, Requirements for Calibration

Procedures.

U.S. GOVERNMENT PRINTING OFFICE: 1977-765010/180

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Содержание 431B

Страница 1: ...all parameters are within tolerance annotate and affix DA Label 80 US Army Calibration Instrument When the TI receives limited or special calibration annotate and affix DA Label 163 US Army Limited or Special Calibration When the TI cannot be adjusted within tolerance repair the TI in accordance with the maintenance manual When repair is delayed for any reason or the TI cannot be repaired with loc...

Страница 2: ...rtment of the Army Washington DC 29 August 1977 TB 9 6625 086 35 12 December 1975 is changed as follows Page 5 paragraph 10a 3 is superseded as follows 3 Position the TI RANGE switch to the 01 MW position and adjust the zero controls for 0 00 V dc on the dc voltmeter Page 8 figure 4 is superseded as follows Figure 4 Range and tracking check without power meter calibrator ...

Страница 3: ...RS General United States Army Chief of Staff Official PAUL T SMITH Major General United States Army The Adjutant General Distribution To be distributed in accordance with DA Form 12 34A Requirements for Calibration Procedures U S GOVERNMENT PRINTING OFFICE 1977 765010 180 ...

Страница 4: ...rectly to Commander U S Army Aviation and Missile Command ATTN AMSAM TMD EP Redstone Arsenal AL 35898 5000 FAX to DSN 788 2313 commercial 256 842 2313 A reply will be furnished directly to you Paragraph Page SECTION I IDENTIFICATION AND DESCRIPTION Test instrument identification 1 2 Calibration data card DA Form 2416 2 2 Calibration description 3 2 II EQUIPMENT REQUIREMENTS Equipment required 4 2 ...

Страница 5: ......

Страница 6: ...eters Performance specifications Zero carryover Less than 0 5 of FS when zeroed on most sensitive scale Range 0 01 to 10 mw in 7 ranges 20 to 10 dBm in 5 dBm steps Accuracy Model 431C From 20 C to 35 C 01 mw range 2 of FS 03 mw range 1 5 of FS all other ranges 1 of FS From 0 C to 55 C 3 of FS on all ranges Model 431B From 20 C to 35 C 3 of FS on all ranges From 0 C to 55 C 5 of FS on all ranges SE...

Страница 7: ...9950 to 10 275 Hz Accuracy 0 025 Systron Donner Model 1037 M 7910823 P O 7910628 AN USM 257A Hewlett Packard Model 5245L A5 POWER METER CALIBRATOR Range 0 01 to 10 mw Accuracy 0 25 Hewlett Packard 8402B 7911026 AN USM 317 A6 RESISTANCE1 DECADE Range 1 k ohm Accuracy 0 05 Biddle Gray Model 71 631 7910328 A7 RESISTANCE1 DECADE Range 10 k ohm Accuracy Nominal CMC Model 240C 7907234 A8 THERMISTOR MOUN...

Страница 8: ...sformer A1 to the power source and adjust for 115 volts ac CAUTION Throughout this procedure make sure the TI is deenergized while connecting or disconnecting a thermistor mount or when repositioning the MOUNT RES switch b Connect the TI to autotransformer c Adjust the TI mechanical zero setscrew clockwise until the pointer is left of zero moving up scale Stop when the pointer indicates zero NOTE ...

Страница 9: ...tment When adjustment is completed reinstall the covers 8 Coarse Null a Performance Check 1 Position the TI RANGE switch to the 01 MW position 2 Adjust the TI ZERO controls for a 25 to 75 percent indication on the TI meter 3 Turn the RANGE switch to NULL 4 Adjust the NULL control for minimum indication on the TI meter 5 Repeat 2 through 4 above until the TI meter pointer is within the NULL region ...

Страница 10: ...TB 9 6625 086 35 6 Figure 1 Right interior view model 431C Figure 2 Top interior view model 431B ...

Страница 11: ...elow b Adjustments On model 431C adjust R37 fig 1 for 0 00 01 volt on the dc voltmeter at each RANGE switch setting No adjustment can be made on model 431B NOTE Perform paragraph 10 below if power meter calibrator A5 is available as a standard If a power meter calibrator is not available omit paragraph 10 and proceed to paragraph 11 10 Range and Tracking Check with Power Meter Calibrator a Perform...

Страница 12: ... perform b below Table 4 Range and Trucking Performance Check with Power Meter Calibrator Test Instrument Power Meter Calibrator Test Instrument Indications mw Readings for Model 431B are in parenthesis Adjustments for Model 431C fig 3 RANGE switch RANGE MW Min Max 200 Ohm 100 Ohm settings switch settings Mount Mount 01 01 0 0098 0 0097 0 0102 0 0103 R14 R1 03 03 0 0295 0 0291 0 0305 0 0309 R13 R2...

Страница 13: ...nts Adjust the appropriate potentiometer R1 through R14 fig 3 to the mean value No adjustment can be made on model 431B Figure 3 Left interior view model 431C 11 Range and Tracking Check Without Power Calibrator a Performance Check 1 Connect the equipment as shown in figure 4 2 Set resistance decade A7 to 10 kΩ This 10 kΩ value can be decreased as necessary to obtain full scale indication on TI 3 ...

Страница 14: ...meter calibrator Table 5 Range and tracking Performance Check Without Power Meter Calibrator Test Test Dc Voltmeter Indications vdc Readings Adjustments for Model Instrument Instrument for Model 431B are in Parenthesis 431C fig 3 Switch Indication 200 Ohm Mount 100 Ohm Mount 200 Ohm 100 Ohm Settings Min Max Min Max Mount Mount 01 01 438 434 456 460 619 613 645 651 R14 R1 03 03 763 752 787 798 1 08...

Страница 15: ...and 6 above for the remaining positions of the TI RANGE switch If both a 200 ohm and 100 ohm thermistor mount is available perform 1 through 6 above for both mounts b Adjustments Adjust R1 through R14 fig 3 as appropriate for model 431C No adjustment can be made on model 431B 12 Oscillator Frequency NOTE Do not perform the oscillator frequency check if all parameters in paragraphs 8 through 11 abo...

Страница 16: ...frequency counter will indicate between 9 950 and 10 050 Hz b Adjustments 1 Adjust L2 fig 1 on model 431C 2 Adjust L101 fig 2 on model 431B 13 Power Supply a Performance Check NOTE Do not perform the power supply check if all other parameters are within tolerance 1 Connect dc voltmeter A3 to pin W of terminal board XA2 fig 5 and ground For model 431B connect the voltmeter to the negative end of C6...

Страница 17: ... disconnect all equipment and replace TI protective cover b When all parameters are within tolerance annotate and affix DA Label 80 US Army Calibrated Instrument When the TI receives limited or special calibration annotate and affix DA Label 163 US Army Limited or Special Calibration When the TI cannot be adjusted within tolerance repair the TI in accordance with the maintenance manual When repair...

Страница 18: ...General United States Army Chief Of Staff Official PAUL T SMITH Major General United States Army The Adjutant General Distribution To be distributed in accordance with DA Form 12 34C Block No 319 requirements for calibration publications US GOVERNMENT PRINTING OFFICE 1975 641 219 5023 ...

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