95
Reference Manual
00809-0100-4530, Rev DD
May 2016
Also make sure the 20 mA value is below the Hold Off Distance/Upper Null Zone (UNZ).
(This parameter may be used if there are measurement problems in the upper part of the
tank, see
“Handling of disturbances from nozzle” on page 300
). The Hold Off Distance/UNZ
is equal to zero in the default configuration.
Alarm mode
The alarm mode specifies the analog output state when there is a failure or a measurement
error:
High:
the output current is set to the high alarm limit.
Low:
the output current is set to the low alarm limit.
Freeze current:
the output current is set to the last valid value at the time when the error
occurs.
Default settings for alarm mode:
Measurement errors: output current = high
Measured value out of range: transmitter enters saturation mode (if limit alarm is
disabled).
Table 5-5. Analog Output: Standard Alarm Values vs. Saturation Values
Table 5-6. Analog Output: NAMUR-Compliant Alarm Values vs. Saturation Values
5.5
Basic configuration using a Field Communicator
This section describes how to configure the Rosemount 5300 Series Transmitter by using a
Field Communicator.
The menu tree with the various configuration parameters is shown in
. Section
“Basic configuration parameters” on page 88
presents a description of the basic
configuration parameters.
For information on all the capabilities, refer to theEmerson 375 Field Communicator User’s
Manual or the Emerson 475 Field Communicator User’s Manual, available at
.
Level
4–20 mA saturation values
4–20 mA alarm value
Low
3.9 mA
3.75 mA
High
20.8 mA
21.75 mA
Level
4–20 mA saturation values
4–20 mA alarm value
Low
3.8 mA
3.6 mA
High
20.5 mA
22.5 mA
Содержание 5300 Series
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