Summary of AMM-1
Page 1
Audio multimeter amm-1 owner’s manual.
Page 2: Table Of Contents
2 table of contents the purpose of the amm-1 3 what is included 3 about the design 4 specifications 4 power requirements 5 how to use 6 measuring dc voltage 7 measuring dc voltage drops/peaks (min/max) 7 measuring ac voltage and ac current 8 measuring va and power factor 9 measruing ac frequency and...
Page 3: The Purpose Of The Amm-1
3 the purpose of the amm-1 the purpose of this tool is to enable the user to: measure true amplifier power output into any load reactive or resistive measure common dc voltages measure dc voltage drops during quick transients on cable runs or battery / charging systems measure impedance of speakers ...
Page 4: About The Design
4 about the design when you pick up the amm-1 know that you are holding a precision piece of equipment. If treated as such it should provide you with many years of reliable service. We have chosen a 9v battery as a power source for a few reasons: they are readily available isolating the amm-1 from t...
Page 5: Power Requirements
5 power requirements pull the silicon rubber boot off of the unit by starting at one end and pulling off towards the other end. On the back side you will see the battery compartment. Slide battery compartment cover off towards bottom end of unit to reveal the 9v battery compartment. Insert a fresh 9...
Page 6: How To Use:
6 how to use: a note about using the amm-1 the amm-1 is a tool that can measure several different key eletrical properties useful for understanding what is happening within a system. As such, there are endless uses for the tool and there would be no way to list them all in this manual. Some of the m...
Page 7: Measuring Dc Voltage
7 measuring dc voltage 1. Power on the amm-1 by pressing the on button 2. Unit will power up, display internal battery condition, and then land on the dc voltage screen. 3. Connect the probes to the banana jack inputs on the amm-1 4. Connect the probes across the dc voltage source measuring dc volta...
Page 8
8 measuring ac voltage and ac current the amm-1 can perform true rms reading of ac voltage via the probes and true rms reading of ac current via the current transducer mounted within the amm-1. It can also make these reading simultaneously, a necessity for any tool that measures true power and power...
Page 9: Va And Power Factor
9 va and power factor what is va, and what is power factor? Va is the product of volts rms * amps rms. This is the number that one would get if taking a conventional ac voltmeter and an ac current clamp and then multiplying the numbers together. Unlike dc where the voltage and current are constantly...
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10 va and power factor (cont.) this means that the true power being delivered to the subwoofers is 5000 x 78% = 3900 watts. Now he can use this tool to make changes to his box tuning, or even something as small as rounding the corners inside the box or the port itself can move the power factor aroun...
Page 11
11 measuring ac frequency and impedance the amm-1 allows the user to measure impedance of a speaker load at any frequency from 20hz - 1khz at any power level (up to approx 15,000 watts). This is very powerful information to have when designing subwoofer enclosures. For lots of information on impedan...
Page 12
12 measuring ac freq and imp (cont.) how to measure ac impedance 1. Power on the amm-1 by pressing the on button 2. Unit will power up, display internal battery condition, and then land on the dc voltage screen. 3. Press the mode button four times (or hold down) to get to the frequency & impedance s...
Page 13: Real Time Power Mode
13 real time power mode in this mode the amm-1 will show the true power compensated for both power factor and clipping of the signal in a live mode. How to measure true power 1. Power on the amm-1 by pressing the on button 2. Unit will power up, display internal battery condition, and then land on t...
Page 14: Dyno Mode
14 dyno mode in this mode the amm-1 will act like our ad-1 amplifier dyno. The highest true power reading during a "run" will remain on the display. The power reading is compensated for both power factor and clipping of the signal. How to use dyno mode 1. Power on the amm-1 by pressing the on button...
Page 15: Limited Warranty
15 limited warranty d’amore engineering warrants this product to be free of defects in materials and workmanship for a period of one year. This warranty is not transferrable and applies only to the original purchaser from an authorized d’amore engineering dealer. Should service be necessary under th...
Page 16: D’Amore Engineering At
16 to obtain service worldwide please e-mail d’amore engineering at warranty@damoreengineering.Com d’amore engineering amm-1 owner ’s manual rev. 1 2014 printed in tempe, arizona.