ZM1P Impedance Meter

Gold Line ZM1P Impedance Meter

• rugged, battery-powered hand-held unit - requires 8 'AA' alkaline batteries
• measures impedance at selected frequencies – 100Hz, 330Hz, 1kHz, 10kHz
• displays impedance in three ranges – 200, 2k and 20k Ohms
• calculates overall system wattage in three ranges – 20W, 200W and 2kW
• includes overload protection

Particularly suited to testing 70V or 100V-line loudspeakers, the multi-range Gold Line ZM1P should be considered an essential part of any sound contractor’s toolkit.
It can measure the impedance of distributed loudspeaker systems and components, including resistors, capacitors and inductors, at four selectable frequencies. It can also calculate the wattage produced by a system – an invaluable facility for testing that amplifier ratings are sufficient to drive the number of loudspeakers installed. This can represent a problem area for more than a few installations, where different contractors may have been asked to add extra loudspeakers from time to time, without the client necessarily realising that the amplifier also needed upgrading to keep pace.
To make system testing easier, the unit includes a built-in high-level tone generator, allowing an engineer to listen to the loudspeakers under test, and an overload protection circuit safeguards the Gold Line ZM1P from potential damage by amplifier output overloads up to 120Vac.

IMPORTANT NOTE ZM1 vs ZM1P

Please be aware that Gold Line also offer the ZM1 impedance meter but the ZM1P is superior in the following ways:

• The 'P' stands for protection. The ZM1P is relay protected to guard against damage caused by connecting to a live circuit. Should you 'accidentally' connect a ZM1 to a live circuit then damage to the meter is likely to result.

• The ZM1P has an inbuilt tone generator which is invaluable when locating speakers on a circuit.

The unit is shipped complete with 12 month calibration certificate and carries a 12 month warranty.