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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Selection between1 15,or A is performed by a combination of switch settings which may be changed locally if required.
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When the subroutine is completed, return to the procedure mannual step Does the output frequency change in proportion to the movement of the frequency magnitude switches?
If the switch is left in the error position the error selected by the switch and dial positions are automatically entered on all outputs.
Refer to Figure for the test point and adjustment locations on the Flule Oscillator Control pcb Assembly blue retainer pins and the A10 Oscillator pcb Assembly violet retainer pins. With the Inverter Assembly installed, interfacing is on a positive-active basis open contacts activate function. Install the attenuator assembly using the extender kit pcb and cables.
External Sense Connections As shown in Figurethe quadrature amplifier output is fed from the Oscillator assembly to the y-input of an analog multiplier U3 contained in the Oscillator Control assembly. Output Accuracy Test-Millivolt Ranges Vary each of the voltage magnitude switches in turn, while observing the output.
Connect flukf ac differential voltmeter to the quad- rature output using a inch RG58U or equivalent coaxial cable. Output Accuracy Millivolt Configuration A. Perform the load regulation test using the following procedure: The selected output of the A is available at output connectors located on both the front and the rear panels.
Full text of “FLUKE A Instruction”
On the 10V range, the Sense signal is attenuated by the primary of the applicable transformer. Front Panel View The selected-amplitude information is applied to the RCU gating circuits see schematic diagram A-sheet 2. The mid-stage amplifier consists of transistors Q34 through Q37 and Q15, and their related components.
This short- duration low from pin 6 pulses transformer T2. When completed, select internal sensing and measure for a short between each set of terminals. At full-range percent setting, the amplitude will be 10V rms.
Fluke A Calibrator Service and User Manual
Suggested representative voltage and frequency combinations are given in Tabel Adjust the oscilloscope differential amplifier 7A22 gain to 1, f,uke volt output and adjust the 93 IB for a precise null on the 1 volt range. The recommended test equipment and accessor- ies are listed in Tables and Extreme caution should be exercised any time that the inner covers are removed from the instrument for servicing.
Power Supply Calibration In order for the integrator to operate properly over the entire bandwidth of the A, external RC feedback paths are switched in and out, depending on the frequency range selected. The action of the phase-lock loop is such that any phase difference between the Oscillator output and phase- lock reference input results in a proportional phase detector output. All four of the foregoing assemblies are shown on a single schematic diagram: The relays that switch the ca- pacitors in and out of the oscillator circuits are controlled by the same circuit that controls the selection of feedback capacitors for amplifier U8 in the phase-lock circuit.
Generally speaking, the optimum connections for low-level calibrations when using the mV ranges of the A are as shown in Figure Repair as required, then repeat step Since the output of the Power Amplifier is always greater than IV rms, the Attenuator is necessary in order to obtain calibrator outputs in the range of 0. Set the A output to lmV on the 10 mV range.