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Parameter assignment
7.18 mA output (P201 to P215)
SITRANS Probe LR with mA/HART
Operating Instructions, 05/2019, A5E32337711-AC
53
7.18
mA output (P201 to P215)
Note
Factory settings are indicated by an asterisk (*) in the parameter tables, unless explicitly
described.
7.18.1
P201 mA Output function
Alters the mA output/measurement relationship, and allows the output to be set
independently from P001. If a HART master is connected, only the master can change the
value.
Values
0
manual
1
*
level
2
space
3
distance
4
volume (only available if a tank shape has been selected at P050)
Note
•
P201 is set independently from P001: set P001 first, as changing P001 will reset P201 to
the same setting.
•
P201 controls the primary value and the loop current for the HART common module and
should not be changed if using HART.
•
Selection also affects the secondary, tertiary, and quaternary variables for HART.
•
P201 must be set to 0 (manual) before you can modify P911. Remember to restore the
previous setting after using P911.
7.18.2
Independent mA setpoint parameters (P210 and P211)
P210 and P211 allow you to explicitly define the normal operating range. Use these features
to reference the minimum and/or maximum mA output to any point in the measurement
range.
For HART, 4 mA and 20 mA represent the upper and lower range limits for the primary
variable.
P201 (mA Function) Settings
Response for P210 and P211
Level, Space, or Distance
Key in the material level in Units (P005) or percent
1)
of Span
(P007) as referenced from Empty (P006).
Volume
Key in the volume in Maximum Volume (P051) units or as a per-
cent
1)
of Maximum Volume.
1)
Ensure the % symbol is displayed before entering a % value.