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.

Author: Arashinos Shakaramar
Country: Haiti
Language: English (Spanish)
Genre: Health and Food
Published (Last): 7 July 2008
Pages: 10
PDF File Size: 5.18 Mb
ePub File Size: 7.97 Mb
ISBN: 546-1-89999-485-3
Downloads: 40160
Price: Free* [*Free Regsitration Required]
Uploader: Kigagar


Set the A output to 0. The different switch position 5200w binations are printed on the printed circuit board. Every 13 ms, the counter increments from to Set the 5 A output to 10 volts on the volt range. Six-digit resolution within the selected range provides steps as small as 1 nV in the 1 mV range through mV in the V range and 1 mV steps in the V range.

Readout Module View The two wave forms should be displayed, out of phase with each other. These two diodes maintain a potential difference of 20V nominal between the bases of the power transistors Q20, Q23 while those bases are swinging through approximately V ac, peak-to-peak. Perform the transfer measurements.

Remove the top outer cover from the A. The signal on pin 53 of P90 determines which set of amplitude information is gated to the com- parator. Rear Panel Connections During this manuual, the output of the dc amplflier, which is fed by the Amplitude Control voltage from A8, is connected to the input of the integra- tor. Disconnect the white coax cable from J51 on the.

The change in rms value will be less than 0.


Manuals, Guides & Specifications for Technicians | Userequip

Relay K3 would close, replacing the AC Sense signal with the out- put the oscillator amplifier attenuated by divider RR86 flyke the approximate value of the normal AC Sense signal. The Oscillator Control assembly has a number of functions.

Since quadrature amplifier output is 90 degrees out of phase with the oscillator output, the zero crossing pulses close the diode switch for a brief period of time when the quadrature amplifier output is at its peak.

The performance verification test can be used upon receipt of the A and any other time desired to verify the correct operation of the equipment. Connect the equipment as shown in Figure Calibrating an average-responding, rms-indicating meter in the presence of these low-energy components presents no problem since they have such a low average value referred to the period of the primary output wave- form. The integrator output is connected to the x-input of the ana- log multiplier to control the amplitude of the oscillator accordingly.

A ground terminal is provided at the front panel output. Set the A output to lmV on the 10 mV range. The following paragraphs contain a performance verification procedure. The test equipment required for the performance test is listed in Table The Oscillator Control assembly also provides for the phase-lock feature of the calibrator.

When operating in the V range, the Power Amplifier has a gain of 30 so that the in- put to the Attenuator is in the range of 10 to V rms, depending upon the front panel amplitude selection.

If the instrument still does not pass those tests, perform the Signal Path Test Subroutine beginning at Step If reshipment of the equipment is necessary, the original container should be used. The extra capacitance it provides on the three lower ranges offsets the slight isolation of the range- select capacitors on the A9 pcb caused by the distributed inductance of the traces to those capacitors.


Location of the individual pcbs within the instrument com- partment is illustrated in Figure Millivolt Amplitude Calibration When a load is connected to the calibrator output, and when the IR drop across the output leads is significant, the rated accuracy of the calibrator is available at the load if external sensing is used.

For all other amplitude ranges, the Power Amplifier has a gain of 3, resulting in an Attenuator input of 1 to 12V rms. Measure the error with the transfer standard and record the value. When the test is complete, repair as required and recheck the floating inside the guard regulators, beginning at step The decade switches can then be set for any value from 10 to percent of the selected range each range has a 20 percent overrange capability.

Stop electronic waste – fix it yourself

If present, refer to step 6. Maximum volt-hertz product is 1.

Repair as required and repeat the step causing the transfer to this step. The front panel connectors are banana-type jacks and are provided for high and low output lines, high and low sense input lines, guard, and ground.

Listed below are the correct replacements for the Line Power Fuses. The Attenuator also provides the necessary division or attenuation of the sense input signal.

Con- nection of the external reference signal is made to the cali- brator by means of the BNC connector shown in Figure