Impedance Meter

An impedance meter is a utility used to determine impedance, which is a gauge of opposition to AC. The following are some devices that can gauge impedance as well as other electrical qualities.

Impedance Meter Specifications: Gold Line ZM-1

The Gold Line ZM-1 weighs only 12 ounces. It can take measurements in 25, 50, 70, and 100 volt line systems. The unit is battery operated and designed for an installer or sound contractor.

The sine waves are produced at 100 Hz, 330 Hz, 1 kHz and 10 kHz. This can be used to measure impedance or gauge watts. The Gold Line ZM-1 also comes with a switch selector for the 200, 2k, or 20k ohm range. This is for those who need more precise measurements. The unit also has an LCD display indicating if the battery is already low.

Impedance Meter Specifications: Gold Line ZM-1P

The Gold Line ZM-1P weighs 12 ounces. This is a portable device and is battery operated. The device can generate sine waves from 100 Hz, 330 Hz, 1 kHz up to 10 kHz. This feature makes the device useful not just for gauging impedance but also measuring watts.

If more accurate measurements are needed, there is an option to switch to ohm ranges (200, 2k, or 20k). The unit also has built in protection from damage by amplifier overloads. There is also a Tone Generator included to make system testing more efficient. The batteries are also rechargeable.

Impedance Meter Specifications: TOA ZM-104A

The TOA ZM-104A measures 20 x 16 x 5 inches. This device is intended to gauge impedance on sound system speaker lines. The device is portable and is run by batteries. The TOA ZM-104A is equipped with zero adjustment for making precise measurements.

The unit comes with test leads as well. The readings are provided in the same way as a circuit meter. The process is straightforward; disconnect the speaker from the amp and link it to the leads. The selector lets you choose from 3 ranges (5 to 100,000 W).

Impedance Meter Specifications: MCP BR2822

This impedance meter measures 7.9 x 1.6 x 3.7 inches. Besides the impedance, this device can also gauge capacitance, inductance, resistance and quality factor. The dissipation factor can also be measured. The MCP BR2822 has a microprocessor built in and has 0.3% accuracy. The resolution is 0.01%.

There are four frequency ranges available: 100 Hz, 120 Hz, 1 KHz and 10 KHz. The measuring range of the MCP BR2822 is wide, from 0.1uH to 9999H for the inductance, 0.1mohm to 999.9Mohm for the impedance and 0.1pF to 9999uF for the capacitance. For the resistance it is also 0.1mohm to 999.9Mohm.

The unit comes with a battery that charges itself when the adaptor is plugged in. The power source is a 9V rechargeable battery. The unit is designed for both maintenance technicians and home owners that need to check electrical qualities and components.

The impedance meter specifications of these devices show how the distinction between impedance and other multimeters is dissipating. Today most multimeters and LCR meters sold can check impedance, resistance and other electrical qualities.

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