pen recorder

pen recorder

[′pen ri‚kȯrd·ər]
(engineering)
A device in which the varying inputs (electrical, pneumatic, mechanical) are marked by a signal-controlled pen onto a continuous recorder chart (circular or roll chart).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
To reduce local magnetic disturbances, place the magnetometer in a box well separated from the power supply and pen recorder (the motor of the recorder could produce some nasty feedback).
It is a good idea to use your pen recorder while making tests.