Despatch Protocol Controller Manuel d'utilisateur télécharger pdf (Page 8)

Figure 2. Main Display and Keypad on Protocol Control

THEORY OF OPERATION

This section describes the Protocol installed in the LAC, LAD, LFD and LND Series

ovens.

Protocol

The ovens are equipped with a modular microprocessor based digital temperature

controller.

The Despatch Protocol temperature controller is a dual functioning controller/high limit

instrument. The control portion of Protocol incorporates a microprocessor to digitally

control process variables with minimal temperature fluctuations.

The high limit portion of Protocol protects the product and/or the oven itself. If the

product being processed has a critical high temperature limit, the Hi-Limit parameter

should be set to a temperature somewhat below the temperature at which the product

could be damaged. If the product does not have a critical high temperature limit, the Hi-

Limit parameter should be set to a value slightly higher than the highest programmed

setpoint to protect the oven equipment.

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Despatch Protocol Controller Manuel d'utilisateur Page 8