Honeywell Circular Chart Recorder With or Without Control DR4500

CAUTION: Store replacement charts in a dust-resistant location. Otherwise, accumulated dust on the chart may cause excessive pen tip abrasion which can shorten expected pen life. In addition, you may want to air purge the case, if the recorder is mounted in an extremely dusty environment.

Press the [CHART] key. The pen will move to and stop at the outer limit of pen travel near the edge of the chart. Also, chart rotation will stop and the prompt CHT HOLD (chart hold) will appear in the lower display.

Pull the pen lifter up to raise the pen from the chart.

Carefully remove the used chart from the hub and retaining clips. (Do not remove hub adapter.)

Install the new chart so that its edges are under the four retaining clips and its small alignment hole is over the alignment pin on the hub. (Press chart down completely around hub adapter.)

Push the pen lifter down to lower the pen.

Press the [CHART] key. The prompt CHT HOLD in the lower display will be replaced by the parameter prompt/value that was last selected using the [LOWR DISP] key. If, in the CHART group, the recorder is configured for HEADER (YES), a new header will be printed, then pen recording of input values will resume. If HEADER (NO) is configured, recording will resume immediately.

Be sure to keep door closed during operation to minimize dust collection on the chart.

Recorder door opened and power removed

Hood unscrewed and removed from the lamp assembly

Lamp pushed in and turned counterclockwise to remove from the socket

Replacement lamp installed in the socket

Hood replaced on the lamp assembly

NOTE: Cleaning frequency will vary with recording application environment.

Pen lifter pulled up to raise the pen from the chart

Pen tip cleaned with cotton swab dipped in alcohol

Pen lifter pushed down to lower pen

Door closed and normal operation resumed