The Honeywell DR4500 Truline circular chart recorder is a 12" digital circular chart recorder that delivers top-tier performance to meet your process recording needs. The standard Truline model prints its own chart on thermal media, recording up to four process variables on the same timeline, eliminating errors caused by temperature and humidity changes that affect traditional paper charts. The wastewater version (DR45AW) also provides specialized features for industrial and municipal wastewater monitoring and recording, including Weir, Parshall flume and Palmer-Bowlus flow calculations.

With a "one-pen" stylus printhead, Honeywell DR4500 Truline circular chart recorders produce up to four analog traces and print alphanumeric chart data on a blank heat-sensitive chart. All four traces share the same time line reference printed directly by the Truline unit. This eliminates the error caused by pen alignment offsets in conventional pen-based designs. Since the Truline prints the chart and generates the analog traces simultaneously, there is no error due to variations in chart size caused by changes in temperature and humidity.

With advanced microprocessor electronics and a single printhead, the Honeywell DR4500 Truline circular chart recorder is easily user-configured to meet a variety of application requirements - from metals manufacturing to food processing. Models with up to four input channels accept inputs from any one of a variety of sensors or transmitters within the configurable range limits.

Features

• User-configurable operating parameters
• Clear, brilliant alphanumeric displays
• All-purpose thermal chart eliminates the need for stocking multiple pre-printed charts
• Up to 4 input channels to monitor a variety of sensors and transmitters
• Prints configurable alphanumeric chart data directly on the thermal chart
• Up to two versatile PID digital controllers
• Real-time clock, date, and time of printing
• Accutune II auto-tuning capability
• Fuzzy logic to suppress process variable overshoot
• Setpoint ramp and setpoint rate control
• 24Vdc transmitter power supply included on all models
• Specialized wastewater version (DR45AW) with flow calculation capabilities
• Eliminates temperature/humidity induced measurement and recording errors