TOA ZM-104A เครื่องวัด อิมพีแดน Impedance Meter เครื่องวัดระบบเสียงตามสาย

 TOA ZM-104A Impedance Meter 

The TOA Impedance Meter, ZM-104A, has been designed to measure impedances in the speaker lines in sound systems. It is fully portable and is operated from internal batteries. This handy meter provides accurate direct readings in the manner of a circuit meter, simply by disconnecting the speaker line from the amplifier and connecting it to the measuring leads. 

The range selector switch allows selection of three ranges, from five to one hundred thousand Ohm. Each time the range selector switch is transferred, zero Ohm adjustment is necessary before operation. 

Its accuracy is less than plus or minus ten percent on all ranges. The ZM-104A requires one battery change only after more than 30 hours of continuous use. 

The ZM-104A is supplied with a convenient Impedance Output Chart. 

The entire unit is sturdy, light and easy to carry. It weighs a mere 2 pounds. 

Features: 

• Measures impedance of speaker lines up to 100k ohms

• Batteries: four (AA)

• Zero adjustment for accuracy on all ranges

• Easy to read meter calibrates directly in ohms

• Includes carrying case, test leads and impedance to power reference chart

• Five year warranty

More Information Impedance Meter

 Impedance-to-Power Conversion Chart 

Expanded Impedance-to-Power Conversion Chart - 70V & 140V 
Application Note from Syn-Aud-Con 
Measures impedance of speaker lines up to 100k ohms
Batteries required: four (AA) - not included
Zero adjustment for accuracy on all ranges
Range Selection: x1, x10 & x100
Easy to read meter calibrates directly in ohms
Includes carrying case, test leads and impedance to power reference chart 

• Measures impedance of speaker lines up to 100k ohms

• Batteries required: four (AA)

  • Batteries not included

• Zero adjustment for accuracy on all ranges

• Range Selection: x1, x10 & x100

• Easy to read meter calibrates directly in ohms

• Includes carrying case, test leads and impedance to power reference chart

• Five year warranty

 

TOA ZM-104A IMPEDANCE METER

A portable analogue meter that measures loudspeaker impedance (at 1kHz) in three

ranges (5-1,000, 50-10,000 and 500-10,000 ohms) with a clear analogue display.

Simply disconnect the speaker line from the amplifier, connect the meter across the

line and read the impedance. Battery life approx 30 hours continuous use (at first

range, 60 hours at higher ranges). Supplied complete with carrying-case, test leads

and impedance power chart. Dimensions: 120 x 220 x 63 (w x d x h) mm including

case. Weight less than 1kg including 4 x AA batteries (not supplied).