Configuration
SM/TTX200/TTX300/SIL-EN TTH200,
TTR200, TTH300, TTF300, TTF350
15
Configuration parameters affecting the safety function
All configuration parameters that are changed via the LCD display with keyboard, DTM / EDD or
HART communication when write protection is disabled affect the safety function of the device.
The parameters are described in the operating instructions. The safety function is checked in
accordance with the SIL safety instructions.
For redundancy mode with drift monitoring, the following parameters must be set in DTM, EDD
on the TTH300-.H TTF300-.H, and TTF350-.H:
Redundancy mode on the TTH300-.H, TTF300-.H, and TTF350-.H
• Pulse
output
Active
• Pulse time
60 s, continuous pulse
• Drift value
Configured acc. to customer application
• Drift duration
Maximum 120 s
Sensor type freestyle characteristic and Callendar-Van Dusen on the TTH300-.H,
TTF300-.H, and TTF350-.H
When using these two configurations, it is necessary to check at least 3 reference points to
verify the configured characteristic. For complex curves, check more reference points according
to complexity.
