RayTek FR, FA operating instructions Setpoints, Deadband, Hold Functions

Models: FA FR

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Operation

Peak Hold with decay

timer

000.1-299.9

000.0

000.0

-*

0001-9999

Advanced Peak Hold

trigger or

300.0

000.0

0250-3000

-*

0000

 

threshold

 

 

 

 

 

Advanced Peak Hold

timer or

000.1-299.9

000.0

0250-3000

-*

0000

 

threshold

 

 

 

 

 

Advanced Peak Hold with

timer or

000.1-299.9

000.0

0250-3000

-*

0001-9999

decay

threshold

 

 

 

 

 

Valley Hold***

timer

000.0

000.1-299.9

000.0

-*

000.0

Valley Hold***

trigger

000.0

300.0**

000.0

-*

000.0

Valley Hold with decay***

timer

000.0

000.1-299.9

000.0

-*

0001-9999

Advanced Valley Hold***

trigger or

000.0

300.0

0250-3000

-*

0000

 

threshold

 

 

 

 

 

Advanced Valley Hold***

timer or

000.0

000.1-299.9

0250-3000

-*

0000

 

threshold

 

 

 

 

 

Advanced Valley Hold

timer or

000.0

000.1-299.9

0250-3000

-*

0001-9999

with decay***

threshold

 

 

 

 

 

Table 2: Hold Functions

*Value does not affect the function type

**Holds indefinitely or until triggered

***Function available only for FA Models

6.2.9 Setpoints

The two Setpoints are deactivated by default (alarm mode). Activating and adjusting the Setpoints is accomplished through software. Once one or both Setpoints are activated the relay changes state as the current temperature passes the setpoint temperature.

6.2.10 Deadband

Deadband is a zone of flexibility around the Setpoint. The alarm does not go abnormal until the temperature exceeds the Setpoint value by the number of set deadband degrees. Thereafter, it does not go normal until the temperature is below the Setpoint by the number of set deadband degrees. The Deadband is factory preset to ± 2° C or F of Setpoint value. Adjusting to other values is accomplished through software. For information on the sensor’s communication protocols, see section 9 Programming Guide on page 39. The following figure is an example of the Deadband around a Setpoint temperature of 960°C (1760°F).

30

Marathon Series FA/FR

Page 38
Image 38
RayTek FR, FA operating instructions Setpoints, Deadband, Hold Functions