FLUKE 8810A PDF

Question regarding a FLuke A meter display. «on: January 28, , 04 am». So I’ve gotten into restoring “vintage” DMMs from Ebay. I’ve gotten. Download FLUKE A IM.V4 SERVICE MANUAL service manual & repair info for electronics experts. Hi guys. I managed to buy a Fluke A for £1, knowing that it wasn’t working. The selection switches were broken bar one, and they were.

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Fluke 8810A Digital Multimeter

Connect the test equipment voltmeter high input lead to TP9 and low input to TP8. A digital repre- sentation of the discharge time is obtained by counting the number of cycles of a reference frequency that occur from the start of discharge to the point where the capacitor charge reaches a selected zero detect level. Geneva, Illinois Birnback Radio Co. The circuits described in these paragraphs correspond to the associated detailed schematic diagrams included at the end of this manual.

The True RMS Converter, Optionis a field installable pcb assembly designed to extend the measurement capability of the A to include true rms voltage measurements. While Arm Enable is high recorder is not busy a low-to-high positive transition on the Arm Input line will initiate the DOU update sequence. Install the new top-guard cover on the A and perform the Range Adjustments portion of the Calibration Adjustments procedure.

Since U is held high, unless the K. Rack Mount Installation Figure You May Also Like: Trending Price New. Four vertical columns, describing the A operational status in each of the three functions as being either proper or improper, indicate the functional area of the multimeter where the problem is most likely to be found. Senen Raya 44, P. They include a range amplifier, an absolute value amplifier, a squaring amplifier, a square root amplifier, and an integrator amplifier.

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Is it calibrate it properly? The reference supply signal comes from U 1DE -R read period, negative reference.

Circuit loading is minimized by a 1 Mfl input resistance shunted by pF. H K Ltd 28th FI. Operating instructions for the added functions are included in this section of the manual. California Fairchild Semiconductor Div. But I’d like to fljke it. When the lead resitance increases caused by long input leads or poor connections or the common mode voltage increases, the resulting normal mode voltage error also increases.

Fluke A Digital Multimeter – Imagine41

Test equipment recom- mended for performance test, calibration adjustments and troubleshooting is listed in Table Federal Supply Code for Manufacturers. The basic A is capable of making only dc voltage measurements. A malfunction in the A may be isolated to a particular section of circuitry by observing the displayed symptoms during the multimeter operation in each function.

Louis John Fluke Mfg. Noting the range or ranges affected by the malfunction may point to the gain control component or associated circuitry causing the problem. Newark, New Jersey Southco Inc. For the Flukke Converter See Option The range information for the selected range is used to position the decimal point and illuminate the proper display annunciator.

It receives its input from the appropriate Input Signal Conditioners and integrates it for ms.

To ensure prompt and efficient handling of your order, include the following information. Shipping information is given in Section 2 of this manual.

The term, input signal conditioner, describes the basic function of the three subsections grouped under it. LED Replacement It contributes four ac voltage ranges 2, 20,and V ac and employs a true rms conversion technique to provide true rms measurements with a maximum flukr of 10 ;uV.

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The display must read Fpuke both the VDC and the mV switches.

Range control signals from the Control and Display circuits close switches Q 1 8 and Q Table lists the five dc voltage ranges and the components that control the circuit configuration to produce the proper gain for each range. The theory of operation for the optional Ohms Converter and the 8810aa Converters is given in the appropriate subsections of Section 6.

This allows the input to U3 to be changed from the dc voltage representing the unknowm input to the appropriate reference input without affect- ing the charge stored on C9. The difference should be less than 40 juV. The reference designators for integrated circuits containing two or more gates or functions are presented in text with a numeric suffix. The process effectively takes the square root of the squared input signal and presents it to the input of the integrator amplifier.

Specifications for the AC Converter are presented in Section 1 of this manual. Set the dc calibrator output to 0V dc and connect its output to the input of 88810a resistive divider.

The level fuke which the capacitor is charged is directly proportional to the level of the dc voltage at the input. Adjustment locations are shown in Figure The variable resistor does work, I’ve checked it with a multimeter. Input Terminal Connections for Resistance Measurements The unit should remain in the range.