In sealing applications speed of recovery is very important. Each time the sealing jaws close heat is drawn away into the product. The ability of the E5CN to read and react to any drop in temperature means that the quality of the seal is maintained while operating at high or low speeds. The Colour Change display enables immediate visual indication of the process status.

Control products can be subjected to harsh environments where they can be splashed during the process or covered in dust or get warm through their location. The E5CN, E5CSV, H7CX, H5CX and K3HB all feature a NEMA4X (IP66 equivalent) front panels so are suitable for the use in these applications, also the low profile fascia means that they are less prominent in the front of the panel and so less likely to become dirty.

External influences can cause the temperature to deviate from the required set value. With the E5CN it is possible to programme the level at which display changes colour. Alarm options include deviation from set point, where if the set point is changes the alarm moves with it. Absolute alarms where they are referenced to 0, standby so the alarms will not be active during the set point has been reached. Latching which means that once triggered they can only be deactivated by removing power. This is ideal for remote or unmanned processes, as the alarm will remain until the machinery is next visited.

In many applications it is important to control the speed of approach to set point as well as maintain it at a preset time once reached. This rate of rise control helps to prevent over cooking of the outside of the product. However multistage control is not normally required. The E5CN contains a simple two stage function, controlling the rise to set point and duration once reached.

Faster input sampling and control period

This gives faster, more precise heater control in rapidly changing, disturbance-sensitive applications.

PV colour change

This provides crystal-clear process status, even from a distance and without the need for interpreting the values. When one of the heaters is not at set-point the PV can change colour to alert any member of staff (detecting a bad sealing at an early stage, for example). 

Loop break alarm and sensor break alarm (with forced MV option)

In plastics production the tool used to make the product is changed quite often. Frequent reconnecting of the sensor or heater can result in a wire break (a broken thermocouple, for example). These alarms quickly detect such problems in the process. 

Basic (2-step) programmer

In many thermal processes (food, brick, pottery etc.) a small element of timing is required. This feature enables you to ramp up to a set-point and set the dwell time period. At the end of this time, the process stops or continues with an indication alarm to alert the operator. With this feature, a fixed minimum or maximum curing/baking time is assured in a smooth, controlled way.