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Owners manual for a Craftsman true rms digital multimeter 73755

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john h

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Go to sears site and use make and model number for manual search

Posted on Jul 29, 2018

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Anonymous

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SOURCE: How do you check voltage utilizing the Craftsman

If you don't have to drive, set the multimeter to 20 V DC, and measure on the battery poles. If you'd like to drive during measurement, you could measure on the cigar lighter socket.

Posted on Mar 19, 2009

Anonymous

  • 19 Answers

SOURCE: need owners manual for a

type this into your web browser owners manual for a Jensen JTM97, digital multimeter and you should be able to get what you need.

Posted on Sep 30, 2010

mizrach612

SOLOMON

  • 102 Answers

SOURCE: i have 800va microtek inverter non sine wave.i want to know what is the output voltage available

The voltage should be the same for both. Maybe one or the other isn't calibrated correctly. Have a friend with another multimeter check the output, and then take the voltage that is the same from his and yours.

Posted on Sep 19, 2012

Nicola Conroy

  • 1428 Answers

SOURCE: hi its me again , i tried to replace the old battery with a new one but still giving error code f8.the model is fluke 87 true RMS MULTIMETER. what should i do now

meter needs to be serviced

Posted on Dec 20, 2016

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1 Answer

Fluke 87 multimeter reads/blinks "lead"


clean terminals with cotton bud and ISO and then blow with air

dirty terminals may trigger 'leads' error

Nov 27, 2013 | Fluke 87V True RMS Multimeter

1 Answer

Fluke


Try cleaning terminals ( dirt inside triggers leads message).
use cottons bud and some Iso.

May 10, 2013 | Fluke 87V True RMS Multimeter

1 Answer

Fixing a 34xr-a


http://content.amprobe.com/manuals/34XRA_umeng0000.pdf

maybe this manual helps since you did not say what the problem is with your unit

Oct 25, 2012 | Amprobe 34XR-A True RMS Multimeter with...

1 Answer

I have 800va microtek inverter non sine wave.i want to know what is the output voltage available


The voltage should be the same for both. Maybe one or the other isn't calibrated correctly. Have a friend with another multimeter check the output, and then take the voltage that is the same from his and yours.

Sep 19, 2012 | Office Equipment & Supplies

1 Answer

I need to know about the degree in precision for when using an ac and dc voltage for a multimeter


I dont think This particular model is a True Rms Type . So you will not get accurate reading as of a True RMS Multimeter in AC . But in DC you Should atlest get an accuracy of 0.015
Please Rate My answer well and Support me !!!

Nov 22, 2010 | Mastech Feature Digital Multimeter BuiltIn...

1 Answer

Has a continuos beep


has a short somewhere inside - check it or buy new meter

Oct 11, 2009 | Amprobe 34XR-A True RMS Multimeter with...

2 Answers

I got a output voltage of 100.1 on a trace dr3624


The rms voltage is what counts, because it tells how much power the output will deliver to a resistive load. Inexpensive multimeters on their AC ranges are usually average-responding rms-calibrated meters. This means they measure the average of the absolute value of the AC component of the signal, and display that average multiplied by about 1.11 (actually, pi over sqrt(8)), the ratio of rms to average value for a pure sine wave. That way, the meter will give the right rms reading for a sine wave.

If the signal is a square wave, where the average and rms values are equal, the average-responding meter will read 11% too high.

Many inverters put out a modified sine wave (MSW), which sits at zero for a while, goes to a constant positive level for a while, goes back to zero for a while, and goes to a constant negative level for a while to complete the cycle. The positive and negative parts of the signal have the same magnitude and duration.

The rms and average values of an MSW depend on its duty cycle D, the fraction of a cycle for which the signal is not at zero. In a well-designed inverter, the duty cycle will be adjusted when the DC input voltage goes up and down to maintain the nominal rms output voltage. If we use peak voltage Vp to mean the magnitude of the positive and negative voltages the signal goes to, then Vavg for an MSW is equal to Vp times D, and Vrms is equal to Vp times the square root of D.

The duty cycle for which an MSW will have the same rms to average ratio as a sine wave is 8 over pi squared, or 81%. For any duty cycle less than this, an average-responding meter will read a lower voltage than the inverter rms output, and for a duty cycle higher than this, the meter will read too high.

If your MSW inverter is putting out 120 volts rms and its duty cycle varies from 50% to 75%, the meter reading will vary from 94 volts to 115 volts. I avoid the problem by using a Radio Shack 22-174B true rms digital multimeter.

Aug 27, 2009 | Xantrex Technology DR2412 Inverter /...

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