Sterling SDA 1000-5100 Redundant Safety Controller Display, WATLOW Operating Parameters, Optional

Redundant Safety Controller Display

Optional

The Redundant Safety Controller limits the process air temperature from exceeding the upper temperature range set by the E5CN Temperature Controller. Standard dryers use a microprocessor-based controller for limiting the process air temperature. The controller is a modular, self-contained unit removable from the mounting housing. All parameters are factory set and adjusted; normally, no field adjustment to the internal controls are necessary.

Figure 14: Typical Redundant Safety Controller Display

Setting the Redundant Safety Controller

The Redundant Safety Controller alarm setting is changed by pressing the up and down keys to input the alarm value. The upper display reading indicates the Process Value, while the lower display indicates the High Point Setting alarm value. The factory setting for the High

Point Alarm Value (L1-hi) is 150°F (-23°C).

Restoring the WATLOW Redundant Safety Controller to Factory Setup

If the preset parameters on the controller have been tampered with and it no longer functions properly, call the Service Department. This controller is not meant to be modified.

WATLOW Operating Parameters

The WATLOW controller has only one mode selection; ALARM.

The factory sets the security level to protect the critical parameters from being accidentally changed. Below is an explanation of the modes you will have access to and the manufacturer default settings.

Large Dehumidifying Dryers Controls 33