The ZM30 is the instrument for PA 100/70 Volt line speaker systems and loudspeaker cabinets. Push the TEST button and measurement will be performed automatically. The complex impedance and the calculated Watts of the speaker and transformer will be displayed on the LCD screen in just a few of seconds. The integrated tone generator provides an audible sine sound that makes the line speaker systems and loudspeakers check possible to hear. Can be used as: - Certification - Check - Inspection - Installation - Maintenance - Report What does the ZM30 offers: Time saving by its speed, easy to use and two measurements in one. Versatility: certification, inspection and search for changes. Intended: - Background music system - Fire protection - Line speaker system - Evacuation system - Nursing paging system - Campus - Boats - Defence - Industry - Aviation - Mining Industry - Offshore - Petrochemicals - Installer
General: For Certification, installation and maintenance of line speaker systems and loudspeaker cabinets is the ZM30 a reliable instrument to use due to its speed and immediate results for both complex impedance (Z) and the calculated Watts. A line speaker system can be certified by measuring the different terminals. During the yearly inspection, the system will be measured and compared with the previous recorded results. In case of differences during measurements, causes can be found by measuring the components individually. The calculated Watts is essential to check these components. Function: The measurement is performed with a continuous sine-wave signal in the audible range. This is a useful tool to search for the defective speakers. Where not only the measurement can divert but also absence of the sound. Besides this test, the ZM30 has a tone generator function with 1 kHz for continuous audio tests. Theory: A 100/70 Volt line system consists out of a series of cables, transformers and speakers, this can only be measured with an impedance meter with a measuring range of 1 to 19 kOhm at a center frequency of 1kHz. Measurement of a coil as used in loudspeakers and transformers, is not possible with a multimeter, due to that DC is used to measures the resistance what results in R (Ohms). A coil has a complex Ohm value indicated as Z, this can be measured with an AC signal, such as used in the ZM30. Application: Measurements must be performed in a passive system. It is NOT possible to measure active systems.
Features
ZM30 Features:
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Impedance Measurement
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Watt calculation
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Auditory test
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Automatic range
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Backlit display
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Fast in operation
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Easy to use
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Low battery indication
ZM30 Package Contents:
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ZM30 Impedance & Watt meter
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AJJ1 Cable red black crocodile to banana
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User manual
ZM30 Accessories:
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AJI8 Charger for loading ZM30
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AJI9 12V Car adapter ZM30
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AJJ0 Certification calibration ZM30
Specifications
Impedance range:
1Ω - 19KΩ
Watt range:
Maximum 10,000 Watt
Intended for:
100 and 70 Volt passive broadcasting systems, speakers and loudspeaker boxes
