Question about Heating & Cooling

1 Answer

Multimeter Mastech, verses Fluke, Unfortunately I damaged my good old Fluke 87-3 when I measured a 3 phase motor supply while still in ohms mode, one of those o-**** moments when you hear the meter freak out and know without even looking at it. Still works but brain damaged and I don't trust it anymore. Anyway looking at various meters on the market and came across this mastech meter on ebay item 200461965472, I know its not a Fluke, but I like the features it boasts and of course the lower cost than Fluke, has anyone used this brand? Any good? One thing I like is speed are these fast or is there a delay like most meters other than Fluke. I would like to hear from someone who has actually used one of these or makes. Also looking into PC based meter/O-Scope/Function generator where the PC or laptop is the display/control with a interface box with in/outs. Has anyone had experience with these and can recommend makes, models.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 4,924 Answers

I had a simial model and I can tell for sure that i is a pretty good tool ...the pairing with the laptop is great ..and have drivers for almost all operation systems...the issue with it is that indeed it has a slight delay ..but not that much to be a problem... Another good thing is that it comes from an American seller and you can always send it back with no problems in 7 days .....Im not sure what use will be in your hands..but Im a computer 's repair-man ..and for usual measurements I used it well ...and of course..the price is great ...comparing with a well known manufacturer like Fluke.'s..
Anyway ..if you planing to use it and not just collect it ...:D I say it will do the job..and not make a hole in your money-pocket ..

Posted on May 08, 2010

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How do we measure the voltage at each phase in a three phase wiring system using a multimeter or voltmeter?

If you Google your question you will discover a great deal of information including the theory and practice of 3-phase star and delta power generation with and without neutral and some youtube videos about measuring the voltage.and some valuable safety information.

Safety is paramount due to the high voltage available between phases.

Briefly, the voltage is measured with reference to neutral or ground on all three phases and averaged to discover the supply voltage.

Next the voltage between phases L1, L2 and L3 are checked and these should be identical or within a few percent of being identical.

Good luck!

Apr 22, 2016 | Cars & Trucks

2 Answers

Replace compacitor on Carrier 5 ton 3 phase AC

Your 3 phase unit should not have a capacitor. I'm guessing it's single phase. If it's a single capacitor than the compressor should not be going to it also. To test the motor, common to start plus common to run should equal the ohms you get between start and run. For instance, 1.2 ohms+ 2.2 ohms= 3.4 ohms. Follow the wiring diagram on the inside of the door, send model number!!

Aug 29, 2017 | Carrier Heating & Cooling

1 Answer

Need a user manual for Voltcraft 95

Apr 05, 2013 | Fluke Networks Fluke 87-5 Digital...

1 Answer

How to set mastech multimeter to read small batteries

Set the multimeter to a DC voltage range that includes the voltage you wish to test. Connect the probes with the correct polarity and observe the reading

Mar 16, 2013 | Mastech 19-range Digital Multimeter Dmm...

1 Answer


The Motor Controller has detected excess current in the motor or electronic
switches. This fault has occurred momentarily.
Primary Source: Wiring.
Action: Check the wiring connections from the Motor Controller to the Stator
and the Rotor Position Sensor.
Secondary Source: Motor.
1) Measure/check the motor harness, connectors and motor for shorts. This can
be done by taking a resistance measurement between phases of the motor
harness at the Motor Control module end. Nominal resistance should be
around 12.2 ohm for Phase 2, 3 & Phase 4. For Phase 5 and 6 Smart Drive
the nominal resistance should be around 32 ohms.
2) Check the Rotor Positional Sensor, Stator brass bridge terminal point and
associated harness for water, mechanical damage or corrosion.
Tertiary Source: Motor Controller module.
If all the above show no signs of fault then replace the Motor Controller module.
Also check for water leaks from the cooling chamber or valves that could possibly
come in contact with the Motor Controller and fix the leak before replacing with new
Motor Controller module.

Oct 19, 2012 | Fisher and Paykel GWL11 Top Load Washer

1 Answer

Fluke 87-5 affiche F8

F8 Error - invalid model -you will have to return to Fluke for service

May 16, 2012 | Fluke Networks Fluke 87-5 Digital...

1 Answer

Fluke 87-5 affiche ERREUR F8

F8 Error - invalid model -you will have to return to Fluke for service

May 16, 2012 | Fluke Networks Fluke 87-5 Digital...

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

32 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts


Level 3 Expert

2463 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides