User's Manual

7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 45
mmmmm
Parameters (HART)
4.3.3: Level Parameter (= Parameter 4.2.4)
or
4.3.3: Volume Parameter (= Parameter 4.2.5)
4.3.4: Current Limit (F = 20 mA)
Upper current limit
Here you can set the upper current limit of the output signal in steps of 0.1 mA (see
Current limiting diagram below).
Current limiting
The URV is always at 20 mA. If you set the current limit to a higher value, you can have the
measured values output outside the measuring range (up to approx. 115%).
4.3.5: Error Signal (F = 3.6 mA)
Current value of the error signal
In the event of a fault the device applies the current defined here to the analog output.
You can choose between 3.6 mA, 22 mA, 24 mA, Hold 10 s, Hold 1 min, Hold 2 min, Hold 3
min and Hold permanent.
Value
20 - 22.5 mA
Value
3.6 mA
22.0 mA
24.0 mA
Hold 10 s
Hold 1 min
Hold 2 min
Hold 3 min
Hold continuously
setting range
22,5 mA
20,0 mA
measured value
current
chap6.fm Page 45 Tuesday, October 9, 2001 2:26 PM