Supco MFD10 Digital Capacitor Tester User Manual
- June 15, 2024
- Supco
Table of Contents
Supco MFD10 Digital Capacitor Tester
INTRODUCTION
The capacitor tester can reliably test all capacitors from 0.01 MFD to 10,000 MFD.
This includes all types of start-and-run capacitors used in the refrigeration and air conditioning industries. It is designed to meet all industrial specifications and service requirements. This pocket-size, battery-operated capacitor tester is simple to operate. Just attach the leads to the capacitor terminals, press the button and the exact capacitor value is brightly displayed on the LED readout. A handy carrying case is also included.
BATTERY INSTALLATION
Slide the rear cover down and install (4) AA batteries. Observe polarity as indicated on the bottom of the battery compartment.
BATTERY TEST
Set the scale to 10 MFD. Separate clip leads so that no contact is made. Press the activator button. If the batteries are good the display will read 8.888. If other numbers appear this indicates that the batteries are weak and should be replaced.
OPERATING INSTRUCTIONS
- Disconnect the capacitor from all power sources.
- Discharge capacitor. Failure to discharge the capacitor can cause the protective fuse to open.
- Attach clip leads to capacitor terminals. It is important to ensure good contact with the capacitor terminals.
- Set the scale switch to the expected capacitor value range. From 0.01 MFD to 10 MFD set scale switch to 10 MFD. For values over 10 MFD set the scale switch to 10,000 MFD. Press the activator button. The value will be on the LED display.
Features/Benefits
- New, rugged case
- Rubber grips for easy handling
- Range 0.001 μF to 9999 μF
- Accuracy +/- 5%
- Auto-ranging
- One button operation
- Now with magnetic leads
- Includes alligator clips
- Longer leads – now 12”
- Sliding door to easily store test leads & clips
- Includes soft carrying case
- Dimensions 2 5/8” X 1 3/8” X 4 1/4”
- Operates on 3 AAA batteries (not included)
Accessories
Part No. Description
MFDFUSE: Replacement fuse
22792: Soft carrying case
NOTE: When the unit indicates a shorted capacitor, be sure to test the
capacitor at the higher range. Good capacitors above 10 MFD will indicate a
shorted capacitor (display will show 0.000) when tested on the low range. On
the high range the
correct reading will be displayed
Safety Instructions
- Avoid Wet Environments : Do not use the capacitor tester in wet conditions.
- Check the Tester : Before each use, inspect the tester for any signs of damage or wear. Do not use if it appears damaged.
- Properly Rated Test Leads : Use only the test leads that come with the tester or those specified by the manufacturer.
- Stay Away from Live Circuits : Never touch exposed wires or terminals with your hands when the power is on.
- Turn Off Power : Before testing capacitors in a circuit, always ensure the power is turned off and the circuit is de-energized.
- Discharge Capacitors : Before testing, always discharge capacitors. Capacitors can store energy even if the device they’re in is powered off.
- Proper Handling : Do not drop, throw, or otherwise mishandle the tester.
- Battery : Replace the battery when indicated or if the device doesn’t function correctly. Dispose of used batteries properly.
- Storage : Store the capacitor tester in a dry place away from direct sunlight.
- Avoid Extreme Temperatures : Don’t expose the tester to extreme heat or cold. It can affect its accuracy and performance.
- Do Not Modify : Never attempt to modify or repair the device unless you are qualified and authorized to do so.
- Safety Gear : Wear appropriate safety gear, like safety goggles, when working with electrical circuits.
FAQs
What is the Supco MFD10 Digital Capacitor Tester?
The Supco MFD10 is a digital capacitor tester designed for testing and diagnosing capacitors used in various electrical and HVAC systems.
What types of capacitors can it test?
The MFD10 is capable of testing run capacitors, start capacitors, and dual-run capacitors commonly used in HVAC, refrigeration, and other electrical systems.
How does the MFD10 tester work?
The MFD10 uses advanced technology to assess the capacitance, resistance, and other properties of the capacitor, providing accurate measurements for diagnostics.
What is the range of capacitance values it can test?
The MFD10 tester typically covers a broad range of capacitance values, making it suitable for various capacitor sizes and types.
Is it easy to use for beginners?
Yes, the MFD10 is designed for ease of use, with a user-friendly interface and clear instructions for performing tests.
Does it provide information about the condition of the capacitor?
Yes, the MFD10 not only measures capacitance but also provides information about the condition of the capacitor, helping to identify faulty capacitors.
Is it suitable for professional technicians and DIY enthusiasts?
The MFD10 is commonly used by both professional technicians and DIY enthusiasts for diagnosing and troubleshooting electrical systems.
What is the power source for the MFD10 tester?
The tester is typically powered by batteries, making it portable and convenient for on-site testing.
Can it test capacitors while they are in the circuit?
Yes, the MFD10 is often capable of testing capacitors in-circuit without the need to remove them, saving time and effort in diagnostics.
What are the safety features of the MFD10 tester?
The MFD10 may include safety features like discharge resistors to ensure the safe discharge of capacitors after testing.
Is it suitable for testing capacitors in HVAC systems?
Yes, the MFD10 is commonly used in HVAC applications for testing and diagnosing capacitors in air conditioning and heating systems.
What should I do if I encounter issues with the MFD10 tester?
If you experience any problems or have questions about the tester, consult the user manual or contact Supco customer support for assistance and troubleshooting.
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