Overflow Range - Siemens SITRANS P DS III Operating Instructions Manual

Function
Blind adjustment of
the start of scale
value
Blind adjustment of
the full scale value
Position correction
Root application point 12
Keyboard operation
Normal operation
6.4.6

Overflow range

Description
The output signal is divided into defined ranges:
● Measuring range
● Saturation limits
● Fault current
The transmitter emits the output current according to the device variables selected as
primary variable (PV). The working range of the current lies between 4 mA and 20 mA.
Meaning
When the measurement limits are exceeded or not reached, the measured values are
correctly displayed in the overflow range.
A ticker is displayed in the bottom line of the display showing alternately the message
UNDER or OVER and the selected unit. The possible overflow range can be adjusted via
HART communication. If either of the overflow limits are violated, the output current remain
constant. Violations of the measured value limits are output on the display by
Note
The setting of the overflow range and the fault current range can be freely selected via
HART communication.
SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09
Mode
Display
5 if the upper sensor limit is
exceeded
6 if the upper sensor limit is
exceeded
7 if the max span is exceeded by
more than 5% of the upper current
limit
if the root application point of 15%
is exceeded
2, 3, 5, when the span to be adjusted is
6 larger than the maximum span
Current exceeds the upper
saturation limit
Pressure exceeds the upper sensor
limit.
Operation
6.4 Display
Display
if the value falls below the
lower sensor limit
if the value falls below the
lower sensor limit
if the value falls below the
lower current limit
if the value falls below the root
application point of 5%
when the span to be adjusted
is smaller than the minimum
span
Current falls below the lower
saturation limit
Pressure falls below the lower
sensor limit.
or .
75