Presentor AL19 Series is available in four styles:
- AL29B - For front of panel mounting with full bezel,
- AL29M - For front of panel mounting with lower mask,
- AL29W - For back of panel mounting with only the scale and pointer visible,
- AL29WF - For back of panel mounting with bezel and with only the scale and pointer visible.
Simple back of panel mounting. Back of panel mounting with accompanying bezel.
Front of panel mounting with lower mask. Front of panel with full bezel.
Constructed with transparent acrylic front and high impact translucent rear body moulding. Masks and bezels, moulded in black ABS.
Taut band centre magnet m ovement incorporated as standard with 26mm diameter barrel. There is no calibration effect when mounted on aferrous panel.
The rugged movement makes the meters equally suitable for portable or fixed applications Specification A low range ac voltmeter offering a performance close to that of a full specification vu meter. Please refer to back page for full specification details.
2" Rectangular.
2-Stud 2.5 x 10mm.
1/4 Spade Input Terminals.
Surface Mount. 90 Degree Arc. Taut Band.
Rear Zero Adjustment.
Black/Red on Buff A Scale. Black Tube Pointer. Plastic Window.
Zero Adjuster:
Normally positioned on the front of surface mounted styles (M and B types) and on the rear of behind panel styles (W and WF types). Other options may be specified.
Accuracy: 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 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.
Operating Temperature: -13°F to 131°F (-25°C to 55°C).
Illumination:
Comprehensive options areavailable.
Overhead -available fo r Wand WF styles. Using 6mm festoon style lamp.
Light box -available for all styles for types 29 and 39. Using either festoon or T1 3⁄4 flanged lamps.
LED Illumination - internal LED illumination is also available for all sizes and types.
Performance: IEC 268-17.
Terminals: 6mm tabs are supplied as standard but threaded studs or flying leads areavailable.
