FLUKE 5200A MANUAL PDF

Fluke a AC Voltage Calibrator Teardown and Repair – Page 1. In summary, the manual puts it best: “DEATH ON CONTACT may result if. FLUKE SA. MAR 3 0 .. temperature using an rms responding meter, ( Fluke B . control is obtained via the A (Manual or Remote Mode). A AC Calibrator for a combined output ranging . The Static Sensitive (S.S.) devices are identified in the Fluke technical manual parts list with the symbol.

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Perform the transfer test.

Instruction

The decade switches can then be set for any value from 10 to percent of the selected range. Coax Test Cables 2 ea.

Voltages Ranges, paragrpah Service and User Manual Pages: Phase locking starts when an external frequency is squared, by amplifier U7 sheet 3 and applied to phase de- tector U6.

A list of representative frequencies manuual their toler- ances are given fpuke Table The Power Supply Assembly supplies all of the dc operating voltages for the rest of the A.

Manuals, Guides & Specifications for Technicians | Userequip

This section contains information regarding install- ation and operation of the Model A AC Calibrator. Potentiometer R63 and the three asso- ciated resistors R59, R61 and R62, provide a means of pre- cise zero-adjusting during calibration.

The frequency range logic is not fed directly to other assemblies as in the Voltage Range circuit, therefore, the fact that the decimal point indicators are operational is not sufficient proof that the frequency range is reaching the remaining circuits. Set the transfer standard and dc calibrator for 1 volt operation. Feedback for the operational amplifier is provided by capacitor C25 on the Hz range, and by C26 for ffluke other four ranges.

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Repeats steps o through q until the two readings are within 0. The troubleshooting procedures will aid in the isolation of a fault to a particular pcb assembly and further, to a circuit or particular section of the pcb. Substitute extender pin 26 for Cl, pin 28 for C2 and pin 30 for C4 in the table.

Load Connections Replace the instrument compartment inner cover. Set the 5 A output to millivolts on the millivolt range. The 83 individual pins are divided into 8 groups, let- tered A through F, H, and K.

The overload indicator should light and the measured output voltage should drop. Re-adjust the ac differential voltmeter 93 1 B and the oscilloscope differential amplifier 1 All gain for an approximate 1 V rms null.

The other five amplitude digits adjust the os- cillator control voltage by means of the Reference Assembly. Set the transfer standard and dc Calibrator for 1 volt operation. Remove the screws that fasten the motherboard to the mainframe.

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The reference input is produced as a re- sult of front panel amplitude selection, and is described in paragraph Voltage Amplitude and Linearity Calibration A complete check of the sensing relay is contained in Tablestep This causes outputs 0 through 7 to be held high, allow- ing no decimal point LED to light.

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Replace any assemplies removed or on an extender, and then install both top inner covers. Connect the calibrator to ac power. Wait at least three minutes then replace the Attenuator Assembly and remove the Power Amplifier Assembly. These low-level outputs are float- ing, with provision for guarding them from low-frequency power line, primarily ground loop currents.

Full text of “FLUKE A Instruction”

Attenuator Assembly A6 Should an overload condition be detected, a Limit signal and its complement would be generated on the Power Amplifier assembly A7 and applied to the AC-DC F,uke ter assembly pins 18 and 12 of P50 would go high and low, respectively.

The output of the Power Amplfifier in Standby mode is the same as it would be in Operate mode for any range other than V.

Extreme caution should be exercised any time that the inner covers are removed from the instrument for servicing. Repeat step d for each desired voltage and frequency combination.