Automation Direct ProSense LPM1 Series Operating Instructions Manual page 21

Loop-powered 4 to 20ma process diplay unit
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Expert menu (EXPRT); a code must be entered
In addition to all the parameters in the Setup menu, the Expert menu also contains the parameters described in
this table. If you call up the Expert menu, you will be asked to enter the user code (UCODE, default: 0000).
Parameters
Values
SYSTM
UCODE
Numerical value 0000 to
9999
Default: 0000
FRSET
NO
YES
INPUT
CURV
LINAR
SQRT
NAMUR
NO
YES
RNGLO
Numerical value
RNGHI
Numerical value
OFFST
Numerical value
–19 999 to 99 999
Operating Instructions - ProSense LPM1 Series Meter
visible at
Description
4-digit user code
With the user code it is possible to protect the
device setup from unauthorized modi cations.
If the setup is disabled, a padlock symbol
appears on the display when an operating
parameter is selected.
The user code is not active with the default
setting "0000". This means that setup
parameters can be changed without entering
the code. The code must always be entered for
the Expert menu, even for the default setting.
Resets the device setup. The values are reset to
the preset values for precon gured devices,
and to the default values for all other devices.
Select "YES" and press "E" by way of con rmation
to reset the device.
The following parameters are available in
addition to the parameters from the Setup
menu.
Use this to select the calculation function for
the process value
LINAR (scaling with SC__4 and SC_20):
Process value = (mA value - 4)/16 * (SC_20 -
SC__4) + SC__4 + OFFST
SQRT (square root extraction and scaling):
Process value = Square root((mA value - 4)/16)
* (SC_20 - SC__4) + SC__4 + OFFST
Negative values when calculating the square
root are set to 0.
Example for SQRT:
• mA value = 8.0
• SC__4 = 0.0
• SC_20 = 100.0
• OFFST = 0.0
Display value = 50.0
Use this function to de ne the error limits in
accordance with standard NAMUR NE 43
NAMUR =
Lower range limit. An error message is
NO
displayed if the measured current falls below
this limit.
NAMUR =
Upper range limit. An error message is
NO
displayed if the measured current exceeds this
limit.
Use this function to enter an o set value to
display the measured value.
LPM1 Series Meter Rev. 1
71487579
21

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