These chart recorders come with NEMA 3 or NEMA 4 front face protection, making them suitable for tough production environments. The bright, digital display and a dedicated configuration keypad bring further convenience to the user. The simple design of these chart recorders makes them easy to operate even by inexperienced operators, and the modular construction makes them easy to maintain, modify and service. The chart recorders use single or dual pens or a “hot-stylus” type pen to produce the chart image. Honeywell Truline circular chart recorders accept directly connected process signals which allow them to process data and create the chart under actual environmental conditions, eliminating the risk of temperature and humidity expansion of the paper and enhancing its accuracy. This accurate and easily configurable recorder is designed to work in tough industrial situations. An integral PID controller and RS-485 Modbus communications ensure user empowerment. The Truline pen provides a convenient method to document a process while minimizing maintenance hassles. It comes with a digital display and easy-to-use operator interface, and is available in many models to cater to the specific needs of different applications such as flow and HTST dairy processes. The DR4500 circular chart recorder is a microprocessor-based recorder suitable to meet a wide range of industry requirements. It is RS-485 Modbus communications enabled and has an integral PID controller. It creates its own chart, thereby eliminating the need for an inventory of preprinted charts and providing flexibility to the user. The DR4500 is a 12” circular chart recorder aimed at applications in food processing, pharmaceuticals, heat treatment, environmental testing, manufactured goods and water/waste water treatment.
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