2108i – Compact and Economical Indicator & Alarm Unit

• Reliable performance and accuracy
• Simple operation
• Fully configurable using operator interface
• Alarm blocking on start-up

The 1/8 DIN 2108i provides you with accurate indication and alarming of temperature and process measurements. Process interlocks, including over temperature furnace limits, are implemented using relay outputs.

A universal input enables selection of nine internally stored thermocouple types and the PT100 resistance thermometer.  Other input linearizations may be factory  downloaded.  Linear inputs can be scaled to the desired display range.

Two relay outputs are configurable for alarms.  Three internal alarm setpoints are provided – configurable as high, low or deviation alarms.  Alarms can be ‘blocked’ on start-up to prevent unnecessary operator alerts.

Tactile buttons ensure positive operation.

The operator interface can be customized to present only those parameters that an operator needs to see and adjust.  Other parameters are locked away under password protection.

The 2108i provides accurate measurement and display of temperature and other process variables in a standard 1/8 DIN panel format. Two alarm relay outputs are provided for operator alert and process protection. A universal input allows selection of nine internally stored thermocouple types. Other input linearisations may be factory downloaded. Linear, process inputs are scaleable to the desired display range. Keylock and passwords prevent unauthorised access to configuration and alarm settings. A large, red or green LED display gives good visibility in low and high ambient lighting. New alarms can be acknowledged and old alarms reset by a front panel button or an external contact closure input. Three internal alarm setpoints are provided. They are configurable as high, or low, or rate of change alarms. Any combination of the three internal alarms can activate the two relay outputs. Latching or non-latching operation can be selected and alarm delays can be applied. A special mode known as ‘alarm blocking’ is available. In this mode, after power on, the process value must first enter a good state before the alarm becomes active. This is particularly useful for low alarms which can be ‘blocked’ while the process is warming-up. Calibration accuracy is preserved with a self-correcting input circuit, while a User Calibration facility allows offsets to be applied to compensate for sensor and other system errors.