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New electronics for HACCP

July 2002

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Dixell's new XR700 and XW700 series of electronic controllers for cases and coldrooms has been designed to meet the needs of the HACCP (Hazard Analysis Critical Control Points) system for food safety.

The new controllers, available in the standard format 32x74 and also the new Wing Horizontal or Vertical formats, are designed for "stand alone" applications, where a centralised monitoring network is either not suitable or cost effective. In addition to controlling the refrigeration process, each controller also manages and logs temperature alarms, and any fault condition within the refrigeration system.

The front facia has been designed to provide the maximum information in a clear, easy to read format, using a two line LEDs display and a series of bright icons. Normally displaying temperature and time, all the information about the current situation and historical data can be examined simply by looking at the display or pressing a few keys.

The monitoring probe detects temperatures that exceed high or low limits, and can be independent from the thermostat probe.Alarms are logged with an identification code, recording the date and time of the beginning and end of the alarm condition together with the maximum temperature reached. Power failures and various external events (door openings etc) are also recorded via a digital input.

An optional infrared device is available to download from the controller all the recorded data (up to 20 alarm conditions) and to transfer them directly to a printer via an Infra Red port. A PC is not required.

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