Endress+Hauser RIA14 - 7.3.3 Limit values (LIMIT); 7.3.4 Other settings (PARAM)

Commissioning RIA14
20 Endress+Hauser
7.3.3 Limit values (LIMIT)
In the event of a limit value violation and a fault, the OC output is de-energized in
accordance with the closed circuit current principle.
If a limit value violation MIN (lower limit) occurs, ’LIMIN’ is displayed in the 14-segment
display. If a limit value violation MAX (upper limit) occurs, ’LIMAX’ is displayed.
Operating mode
LIMIT → MODE → Options OFF, MIN, MAX, ALARM
Use this function to select limit value and fault monitoring.
Options for selection: MIN, MAX, ALARM or OFF
• MIN = lower limit value
• MAX = upper limit value
• ALARM = in the event of a device fault
• Default: OFF = no limit value or fault monitoring
Switching threshold
LIMIT → SETP → Options –19 999 to 99 999
Measured value at which a change in the switching status occurs
• Value range: –19 999 to 99 999
• Default 0
Hysteresis
LIMIT → HYST → Options –19 999 to 99 999
Use this function to enter the hysteresis for the switching threshold at minimum/
maximum safety.
• Value range: –19 999 to 99 999
• Default 0
Delay
LIMIT → DELY → Options 0 to 99 s
Setting of the response delay (in seconds) of the limit value event after reaching the
switching threshold.
• Value range: 0 to 99 s
• Default 0
7.3.4 Other settings (PARAM)
User code - Locking
PARAM → CODE → User code entry
The device can be locked to protect the processes against unauthorized and undesired
interference. The device parameters are protected by a 4-digit user code and cannot be
altered without entering the code.
User code: Once assigned, a user code can only be altered if the old code is entered to
enable the device. The new code can then be set.
• Value range: 0 to 9 999
• Default 0