The Presentor AL39B is an analogue meter designed as a low range AC voltmeter, offering performance comparable to full specification vu meters. It is suitable for connection across a 600 ohm line and requires an external 3.6k ohm resistor for operation. The meter is calibrated to produce a reference deflection (0vu) from a signal 4vu above 1mW in 600 ohms, equating to 1.228V. The performance adheres to IEC 268-17 standards, ensuring reliability in audio applications. The AL39B features a robust construction with a transparent acrylic front and a high-impact rear body, making it suitable for both portable and fixed installations. It is available in various mounting styles, including front and back panel options, and offers illumination choices for enhanced visibility.
The Presentor Audio Level range of analogue panel meters complements the proven and popular Industrial and Fast Response series. The range is available in three sizes each in four styles and offers a performance not significantly different from full specification vu meters to meet today’s audio market requirement for quality at affordable prices.
A low range ac voltmeter offering a performance close to that of a full specification vu meter. Suitable for connecting across a 600 ohm line and self contained except for requiring an external 3k6 resistor. Calibrated for use with a 3k6 ohm resistor 4vu above the scale marking so that the reference deflection (0vu) is produced by a signal 4vu above 1mW in 600ohms (1.228V).
The performance of the meter is based upon the requirements IEC 268-17.
The response curves below give a comparison of the full specification vu meter with that of typical AL19, AL29 and AL39 meters. A variation in over swing between 0 and 5% can occur since the damping is not individually adjusted on each AL meter but allowed to fall within normal process parameters.
| Sifam | |
|---|---|
| Product Category | Analog Panel Meters |
| Product Number | AL39B |
| Product Name | Presentor - AL Series Analogue Meter |
| Features | Illuminated |
| Scale Type | Expanded Scale |
| Scale Length | 3.84 inch (97.54 mm) |
| Face Type | Rectangular |
| Meter Mechanism | Taut Band |