The Linearcorder Mark VII is capable of recording high-speed phenomena of up to 140 Hz, and can therefore be used for a wide range of applications — from production sites to the laboratory.  The WR3320A can be configured as a 1-, 2-, 3 or 4- channel recorder with an amplitude of 80 mm. per channel or as a 2-, 4-,6 or 8- channel recorder with an amplitude of 40 mm. per channel.  (40 and 80 mm. channels).

Both roll and Z-fold paper can be used with the WR3320A.  100 meter lengths stock inside the recorder, while an optional Z-fold chart supply box with a take-up tray enables the use of 200 meter lengths. Roll paper can be rewound simply by pressing the REWIND switch, and an automatic roll chart take-up unit is available as an option.

Remote control functions such as pen heat on/off, chart feed start/stop, synchronization with an external pulse, output of paper-end signal, input of event marker signals, and input/output of time marker signals enable automated, unmanned operation.

Rear panel reference voltage output connectors enable easy calibration whenever plug-in units have been exchanged.  The reference voltage output used for calibration is 1 V d.c.