Fail-Safe - Siemens SITRANS LR260 Operating Instructions Manual

2.3.1.8. 20 mA Output Trim
Calibrates the 20 mA output. The mA output of the device is pre-calibrated;
however, 20 mA Output Trim can be used to trim remote displays or inputs.
Values
Related
parameters
Steps:
1. Set mA Output Function to Manual.
2. Set mA Output Value to 20 mA.
3. Attach a calibrated meter and check the output at the terminals; record
the remote reading in mA.
4. Enter this value in 20 mA Output Trim.
5. Restore mA Output Function to previous setting.
6. Confirm that the mA output is as expected.

2.4. Fail-safe

2.4.1. Fail-safe Timer
Sets the time to elapse in minutes since the last valid reading, before Fail-safe
State activates.
Values
Note:
The last valid reading is maintained until the Fail-safe timer expires.
After the timer expires, the reading is set based on Fail-safe Material Level.
2.4.2. Fail-safe Material Level (FAILSAFE MAT. LE)
The material level to be reported when the Fail-safe Timer expires.
Options
2.4.4. Fail-safe Level
Defines a user-defined level to report when the Fail-safe timer expires.
Values
Note:
This value can be used only if Fail-safe Material Level is set to
VALUE.
Page 62 SITRANS LR260 (HART) – INSTRUCTION MANUAL
Range: 18.0 to 24.0 (mA)
4 mA Output Trim
Range: : 0 to 720 min.
Default: 1
HI: Use 22.6 mA (max. mA Limit) as material level
LO: Use 3.6 mA (min. mA Limit) as material level
HOLD: Level remains at last reading
*
VALUE: User-selected value (defined in Fail-safe Level)
Range: : 3.6 mA to 22.6 mA
Default: 22.6 mA
7ML19985KE02