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Summary of Contents for APART IMPMET
- Page 1 Installed Sound Solutions IMPMET Instruction manual...
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Page 3: Safety Instructions
IMPMET Instruction manual Safety instructions • Read this manual before using this measuring instrument. • Only use this instrument as specified in this manual. • Do not use the instrument on live systems. • Always disconnect the speaker lines from the power amplifiers before attempting to perform a measurement. -
Page 4: Product Overview
INSTALLER TOOLS Product overview • True impedance measurement of loudspeakers and speaker lines up to 2000 ohms at 330 Hz. Measuring frequency optimized for real life impedance measurements on Lo-Z and 100 volt speaker lines. • Three test ranges: 0-20, 200 and 2000 ohms. • Battery powered, uses 6 x AA batteries, long battery life. - Page 5 IMPMET Instruction manual COM connector: 4 mm black insulated banana jack for black test lead (common). Ω connector: 4 mm red insulated banana jack for red test lead (+). Testing LED: this red LED lights up when the unit is performing a measurement cycle.
- Page 6 INSTALLER TOOLS measurement will stop automatically. If you want to stop the measurement manually, push the button once again. LOCK key: for continuous measurement. Press this key while the test is running. “LOCK” appears in the display, indicating that test mode is continuous. Pressing the test button disables continuous measurement.
- Page 7 IMPMET Instruction manual Using the IMPMET Getting started: Turn the function switch to the OFF position. Remove the test leads if present and unscrew the bottom battery cover by removing the four screws. Insert 6 fresh AA alkaline batteries. Mind the polarity! Put the cover back in place and tighten the four screws using a light touch.
- Page 8 INSTALLER TOOLS • E xample: you measure an impedance of 250 ohms (Z) in a 100 volt system. The system power = 100 x 100 / 250 = 10000 / 250 = 40 watts. This speaker or speaker line corresponds to a 40 watts load on a 100 volt power amplifier. Note: when measuring 100 volt speaker lines, make sure that all local 100 volt volume controls have been set at max volume. Disconnect the speaker line from the amplifier before performing the measurement.
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Page 9: Specifications
IMPMET Instruction manual Specifications Display 3 ½ digit LCD display (2000 counts) with data hold, low battery and measured units indication. Power 9 VDC battery powered: 6 x AA battery (alkaline) Dimensions 168 x 110 x 62 mm Weight approx. 500 g including batteries... - Page 10 INSTALLER TOOLS Notes...
- Page 12 Audioprof nv Industriepark Brechtsebaan 8 bus 1 2900 Schoten - Belgium Company names, product names and trademarks are property of their respective owners. Apart-Audio specifications are subject to change without notice.
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