Siemens 7ML5431 - Page 119

Parameter reference
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
119
Material Level (2.5.1.)
Note
The default setting depends whether your device is a standard or NAMUR NE 43
-compliant
device.
Defines the mA output to use when the Fail-safe timer expires.
STANDARD DEVICE
Options
HI
20.5 mA (max. mA Limit)
LO
3.8 mA (min. mA Limit)
*
HOLD
Last valid reading (default 22.6 mA)
VALUE
User-selected value [defined in Fail-Safe mA Value (2.5.3.)]
NAMUR NE 43-COMPLIANT DEVICE
1)
Options
HI
20.5 mA (max. mA Limit)
LO
3.8 mA (min. mA Limit)
HOLD
Last valid reading
* VALUE User-selected value [defined in
Fail-Safe mA Value (2.5.3.)
: default
3.58 mA]
1)
Orderable option
LOE Timer (2.5.2.)
Note
When a Loss of Echo occurs Material Level (2.5.1.)
determines the material level to be
reported when the Fail
-safe timer expires. See Loss of Echo (LOE) (Page 243) for more
detail.
Sets the time to elapse since the last valid reading, before the Fail-safe Level is reported.
Values
Range: 0.00 to 7200 seconds
Default: 100 s