Qualitrol 509ITM Series, Manual

Page: 85 / 189

85
www.qualitrolcorp.com
To set the Ambient Temperature Forecast:
1. Enter the appropriate information in the following fields:
•
Controlled By: Select a temperature signal source to use in
forecasting the temperature. This should be an ambient
temperature probe.
Note:
If the 509ITM does not have an ambient temperature
probe installed as one of its input modules, this feature
cannot be used.
•
Measurement Period: Select the number of hours to measure
the ambient temperature.
•
Exceeded Hours: Select the number of hours that the controlling
signal must exceed the Threshold Value during the
Measurement Period for the setpoint temperature shift to occur.
•
Threshold Value: Select a value to override the standard value.
All other settings for the relay, such as hysteresis and time delay,
remain the same.