Repair
Repair Price: $ 1,284.00
Purchase
CSL Part Number: 2178
Product Overview: The National Electric Coil Model 220 Motor Bar to Bar Tester is a handheld diagnostic instrument used to detect shorted bars in electric motor armatures and rotors. It operates by inducing a variable-frequency test signal through probe forks that contact adjacent commutator bars, with results displayed on an analog meter. The unit features four selectable test frequencies (500 Hz, 3 kHz, 10 kHz, and 25 kHz) to accommodate different motor sizes and types. Commonly used in motor repair shops and manufacturing facilities for quality control and troubleshooting of DC motors, generators, and other wound armature equipment.
Category: Test Equipment
Manufacturer: National Electric Coil
Alternate Manufacturer Names: Magnetek
Manufacturer Part Number: 220
Series: Motor Analysis System
Also Known As(AKA): MCGRAW EDISON CTRLS.
Other Synonyms: Magnetek
Any repair requires the probe.
Common Failures
Several units have been reported with non-functional analog meters. Problems may include a broken needle, an inability to null the meter to zero, or the meter being stuck. Additional issues have included missing fuses, damaged wiring, and aged capacitors.
Repair Approach
Repairs may involve replacement of defective components such as fuses, capacitors, and oscillators. Preventative maintenance may include the replacement of electrolytic capacitors, application of thermal compounds, and securing loose or missing components. For units with damaged PCBs, repairs may be made to circuit traces and connections. Sourcing replacement analog meters can be challenging, and some units may be returned unrepaired if required parts are unavailable.
Testing & Quality
Post-repair testing is performed to verify that units meet operational standards. Diagnostic tests may include checking power supply stability, verifying test signals, and conducting burn-in tests. Units that pass these tests are confirmed for functionality across various frequency settings. Units that lack available replacement parts, such as analog meters, may remain unrepaired even if internal circuitry is functional.
Service and repair your broken National Electric Coil part
We can repair your National Electric Coil model 220 in our facility. Let our skilled technicians get your National Electric Coil back in operation quickly.
Step 1 - Click the green 'Repair Now' button above to add the part and then complete the RMA.
Step 2 - The RMA form will be sent to you via email. Print the RMA form and put it in a box with the item(s) for repair.
Step 3 - Ship or mail the box to the address listed on the RMA.
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