The DR4500 circular chart recorder is a 12" digital circular chart recorder that delivers top performance to meet your process recording needs. The DR4500 recorder comes in several models that address specific needs and markets.

• The DR4500 Truline prints its own chart, recording up to four process variables on the same timeline, eliminating errors caused by temperature and humidity changes that affect the paper.
• The HTST/pasteurization flow model (DR45AH/AP/AS) combines the broad capabilities of Honeywell's Truline recorders with the special features needed to record and control the pasteurization process.
• The wastewater version (DR45AW) of the Truline provides the features required for industrial and municipal wastewater monitoring and recording, including Weir, Parshall flume and Palmer-Bowlus calculations.
• The DR4500 classic recorder (DR45A1/DR45A2) uses the traditional fiber tip pens and pre-printed charts.