Gold Line ZM-1P Impedance Meter Plus Protection Relay

Looking to match multiple speakers to the correct power amplifier? The GoldLine ZM1P Impedance Meter Plus Protection Relay tool takes the guesswork out of setting up a distributed sound system so you can correctly match the impedance levels throughout an installation as well as the calculated watts required by your speakers.

The Gold Line ZM1P measures the impedance of loudspeakers and entire distributed loudspeaker systems as well as individual components. It will also calculate the wattage that will be produced on an installed loudspeaker system. The ZM1P also has an Overload Protection Circuit that prevents the meter from being damaged from amplifier overloads up to 120 VAC and a Tone Generator to improve system testing and performance.

Technical Specifications

Accuracy (typical)
Impedance ± 3% / Wattage ± 2%
Connectors
All Models: Load / Output: Banana Jacks
Display
3.5 Digit LCD with Battery Low Indicator
Test Tone
400mv (-6dBu)
Power Requirements
Eight “AA” Alkaline Batteries.
Expected Battery Life
Impedance Mode: 35 hours continuous
Calculated W Mode
23 hours continuous
Approvals
CE Mark ZM1, ZM1P
Emissions
EN 55022 B: FCC Class B
Immunity
EN 55024 B
Size (WxHxD)
3.25 x 8 x 2.25”
Weight
12 oz.
Case Material
High Impact ABS
Test Frequencies
100Hz, 330Hz, 1kHz, 10kHz
Voltage Ranges
25Vac
Some USA public schools and institutions
50Vac
International
70Vac
USA Industrial Standard
100Vac
International
Impedance Measurement Ranges
0 to 199.9 Ω
0 to 1999 Ω
0 to 19.99k Ω
Wattage Measurement Ranges
0 to 19.99W
0 to 199.9W
0 to 1999W