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Dorrough 280-D3192-XLR Digital Double Scale Loudness Meter

Mfr#
280D3192XLR
B&H# DO280D3192XL

Price: $ 902.50

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Availability : Special Order
Important Notice!
This is a special order item and is non-cancelable or returnable. Est. arrival at B&H is 7-14 business days(subject to availability). You will be charged upon placing your order.

Dorrough 280-D3192-XLR Digital Double Scale Loudness Meter

Features
Specifications
Item Includes

The Dorrough 280-D3192-XLR Digital Double Scale Loudness Meter is a two-channel digital AES/EBU reading stereo meter with an external power supply. This horizontal linear display reaches past the previous 96 kHz meters to a full 192 kHz and comes with XLR connections. This particular model is also designed with a European reference point set at -18 as opposed to the American standard of -20 dB.

All 280D models are designed for horizontal insertion directly into the digital data-stream and display material content average loudness and peaks. Following the gap between peak and average levels is easiest way to see your limiter action. You also get buffered output for digital signal line loop-through.

Key Features

• European Reference: If you're working outside of the United States you may need a European reference point of -18 dB, which makes the 280-D3192-XLR the perfect meter for you.

• Straight Line Display: The 280D Series is functionally identical to the 40D series, except that the 280s have a straight-line scale designed for applications with limited horizontal space. These easy-to-read meters are made to install easily in a custom console or with optional rack mounts.

• Dual Channel Meter: These meters are ideal for situations where many channels must be monitored in limited space, such as a mobile news van or crowded control room. The close side-by-side positioning of the two monitored channels facilitates critical comparisons.

• Peak and Average Metering: The Dorrough 280 digital meters feature both peak and average level display simultaneously, over indication, and selectable peak hold. They conform to all AES 3 (1992) specifications.

• Right and Left Inputs for Stereo Mixing: With one instrument, the operator can easily see the stereo mix and avoid classic in-phase/out-of-phase problems as well as center channel buildup that causes a mix to seem louder. This is especially important in preparing stereo program material for broadcast, while still being able to maintain monaural compatibility.

Input Impedance: 20k Ohm balanced, 10k Ohm single-ended, +/- 2%

Common Mode Rejection Ratio: 80 dB at 60 Hz, 60 dB at 20 kHz (balanced mode)

Input Sensitivity: -10 dB for full-scale display

Maximum Input Level: +24 dB before clipping

Signal Path Bandwidth: 10 Hz - 25 kHz, +/- 0.25 dB

Signal Path Distortion: Less than 1% THD at 1 kHz, +24 dB input

Sum Error: Less than 0.1 dB at 1 kHz

Difference Error: Less than 0.1 dB at 1 kHz

Display Resolution: 40 LEDs, 1 dB/LED

Step Size Error: +/- 0.25 dB

Absolute Error: +/- 0.25 dB model

Drift: +/- 0.25 dB

Average Time Constant: 600 mS, +/- 6%

Peak Acquisition Period: 10 uS, to full-scale, sine input 25 kHz

Peak Attack Period: Virtually Instantaneous

Peak Decay Period: 180 mS, from full-scale to all LEDs off

Display Update Rate: Approximately 10 mS

Display Duty Cycle: Display Time, AVERAGE, PEAK HOLD - 75%; Display Time, PEAK - 100%

Power Supply Input Range: 117/237 VAC RMS, -20% to +10%, 50-60 Hz

Calibration Controls: None needed

User Controls: Left/Right input sensitivity Option DIP Switch A) Peak Auto [ON] B) Difference Mode [ON/OFF] C) Over Level Alarm [ENABLE] D) Under Level Alarm [ENABLE] E) Auto ARMP

User Port: DB-9 Connector A) Alarm relay closure contacts 1 form C, 1A, 30V AC or DC B) Mode control switch (user supplied) C) PEAK function switch (user supplied)

Dimensions (WxDxH): 5 x 1.5 x 5" (2 x 0.6 x 2 cm)

Weight: Not Specified by Manufacturer

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