The PPM-2 audio level meter is a simple way of measuring audio levels of both analog and digital signals. The meter has two analog inputs (balanced or unbalanced), AES/EBU and S/PDIF. The unit is highly configurable via a multifunction knob and easy to read via the high contrast, high viewing angle OLED-display. The instrument is housed in a durable aluminum cabinet. The meter accepts both balanced and unbalanced analog audio. The digital inputs accept both balanced digital audio according to IEC-60958 Type I (AES/EBU) and unbalanced digital audio according to IEC-60958 Type II (S/PDIF). The two different connectors are separated which means that the user can connects both inputs simultaneously. The two S/PDIF connectors are internally connected allowing the user to pass the signal to other devices. The user interface consists of one multifunction knob, one OLED-Display, one clear button and one ON/OFF switch. The multifunction knob is used to navigate in the menu. When the device is switched on it instantly starts to measure the audio level on the selected input. The default screen is illustrated above. The default screen contains a level indicator for left and right channels, a decibel scale, left and right maximum value and two small dB symbols with different signs. The -dB and +dB is used to indicate if the scale starts or ends at negative or positive values. The main menu consists of 10 different main items, which allows the user to configure the meter in different modes. The menu items are listed below in order of appearance. INPUT DIGITAL TERMINATION MEASURE RMS INTEGRATION FACTOR REFERENCE SCALE RESOLUTION SCALE START MAX HOLD MAX DISPLAY VIEW The clear button is user to reset the maximum value; it also freezes the current value while the user is holding the clear button down. If the user turns off the device, the current settings are saved. MAX DISPLAY This option can change the way the maximum indication disappears. The options are “fade away” and “fall off”. When “fade away” is selected the maximum indication fades away at the current position and when “fall off” the maximum indication falls off (moving towards the left). The maximum indication is also presented as a numerical value illustrated below.
PPM-2 Audio Level Meter
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PPM-2 AUDIO LEVEL METER
Technical Data Supply voltage 5 VDC Current consumption 150 mA typ. Balanced analog input Connector XLR Female Input impedance 20kΩ Reference input level -10dBu Maximum input level +20dBu Frequency range 20Hz – 20kHz Dynamic range 60dB Unbalanced analog input Connector RCA Female Input impedance 10kΩ Reference input level -10dBu Maximum input level +20dBu Frequency range 20Hz – 20kHz Dynamic range 60dB AES/EBU input Connector XLR Female Input type IEC 60958 Type 1 Input impedance High Z or 110Ω Standard sampling rates 44.1/48/96kHz S/PDIF input Connector RCA x2 (pass thru) Input type IEC 60958 Type 2 Input impedance High Z or 75Ω Sampling rates 44.1/48/96kHz Measuring characteristics Maximum level error (1kHz steady signal) ±1dB Maximum unregistered pulse length (worst case) ≈6ms* Falloff time (peak mode, scale res = 3dB) 0.3dB/60ms Maximum integration time (rms mode) ≈500ms* (*) Depends on the input signal. Specifications are subject to change without notice.
PPM-2 Audio Level Meter PPM-2 Audio Level Meter PPM-2 Audio Level Meter View Datasheet View Datasheet
MARENIUS ELEKTRONIKUTVECKLING AB  |  BOX 5086  |  SE-42605 VF, SWEDEN  |  TEL +46-31-691610  |  info@marenius.se  |  www.marenius.com  www.marenius.se  www.audiodesign.pro
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PPM-2 AUDIO LEVEL METER
Technical Data Supply voltage 5 VDC Current consumption 150 mA typ. Balanced analog input Connector XLR Female Input impedance 20kΩ Reference input level -10dBu Maximum input level +20dBu Frequency range 20Hz – 20kHz Dynamic range 60dB Unbalanced analog input Connector RCA Female Input impedance 10kΩ Reference input level -10dBu Maximum input level +20dBu Frequency range 20Hz – 20kHz Dynamic range 60dB AES/EBU input Connector XLR Female Input type IEC 60958 Type 1 Input impedance High Z or 110Ω Std sampling rates 44.1/48/96kHz S/PDIF input Connector RCA x2 (pass thru) Input type IEC 60958 Type 2 Input impedance High Z or 75Ω Sampling rates 44.1/48/96kHz Measuring characteristics Maximum level error (1kHz steady signal) ±1dB Maximum unreg. pulse length (worst case) ≈6ms* Falloff time (peak mode, scale res = 3dB) 0.3dB/60ms Maximum integration time (rms mode) ≈500ms* (*) Depends on the input signal. Specifications are subject to change without notice.
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MARENIUS ELEKTRONIKUTVECKLING AB  |  BOX 5086  |  SE-42605 VF, SWEDEN  |  TEL +46-31-691610  |  info@marenius.se  |  www.marenius.com  www.marenius.se  www.audiodesign.pro
The PPM-2 audio level meter is a simple way of measuring audio levels of both analog and digital signals. The meter has two analog inputs (balanced or unbalanced), AES/EBU and S/PDIF. The unit is highly configurable via a multifunction knob and easy to read via the high contrast, high viewing angle OLED-display. The instrument is housed in a durable aluminum cabinet. The meter accepts both balanced and unbalanced analog audio. The digital inputs accept both balanced digital audio according to IEC-60958 Type I (AES/EBU) and unbalanced digital audio according to IEC-60958 Type II (S/PDIF). The two different connectors are separated which means that the user can connects both inputs simultaneously. The two S/PDIF connectors are internally connected allowing the user to pass the signal to other devices. The user interface consists of one multifunction knob, one OLED-Display, one clear button and one ON/OFF switch. The multifunction knob is used to navigate in the menu. When the device is switched on it instantly starts to measure the audio level on the selected input. The default screen is illustrated above. The default screen contains a level indicator for left and right channels, a decibel scale, left and right maximum value and two small dB symbols with different signs. The -dB and +dB is used to indicate if the scale starts or ends at negative or positive values. The main menu consists of 10 different main items, which allows the user to configure the meter in different modes. The menu items are listed below in order of appearance. INPUT DIGITAL TERMINATION MEASURE RMS INTEGRATION FACTOR REFERENCE SCALE RESOLUTION SCALE START MAX HOLD MAX DISPLAY VIEW The clear button is user to reset the maximum value; it also freezes the current value while the user is holding the clear button down. If the user turns off the device, the current settings are saved. MAX DISPLAY This option can change the way the maximum indication disappears. The options are “fade away” and “fall off”. When “fade away” is selected the maximum indication fades away at the current position and when “fall off” the maximum indication falls off (moving towards the left). The maximum indication is also presented as a numerical value illustrated below.
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