Toa Electronics ZM-104 - Portable Impedance Meter

BH #TOZM104 • MFR #ZM-104A
Toa Electronics ZM-104 - Portable Impedance Meter
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Toa Electronics ZM-104A Overview

The ZM-104 from TOA Electronics is a portable impedance meter that can measure the impedance of speaker lines up to 100 k ohms. It has an adjustable zero for accuracy on all ranges. It runs on four "AA" batteries and has an easy-to-read meter that calibrates directly in ohms. It includes a carrying case, test leads, and impedance-to-power reference chart.

Toa Electronics ZM-104A Specs

Reading MethodDirect
Measurement Rangex 1 Range: 5-1000 ohms
x 10 Range: 50-10000 ohms
x 100 Range: 500-100,000 ohms
Oscillation Frequency1kHz (+/-10%)
Accuracy+10%
Power Supply 4 x "AA" Batteries (6V)
Service Lifex 1 Range: 30 Hours
x 10, x 100 Range: 60 Hours
Dimensions4.5 x 7.3 x 2.2" (115 x 186 x 55 mm)
Weight2.1 lbs (960 g) (With Batteries)
Packaging Info
Package Weight1.75 lb
Box Dimensions (LxWxH)9.9 x 5.3 x 2.9"
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I want to measure the winding impedance of ...

I want to measure the winding impedance of unmarked audio transformers. Will this meter work for that?
Asked by: Albert
Thank you for your question. You can use the test leads included in this unit and attach to both ends of the transformer to test the impedance.
Answered by: Anthony
Date published: 2019-05-22
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