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Reference Manual
IP2048/RM, Rev AA
Appendix F: Configuring Using HART
February 2015
F.3.15 Scale Factor / K-Factor (P013)
Level measurement
When the process value (PV) is a level measurement in metres, feet, or inches, this parameter
converts (scales) the level measurement into alternative units before being output. Enter a value
of 1.0 if alternative units are not required.
Volume measurement
When the PV is a volume measurement from a standard non-linear-shaped tank e.g. cylinder or
sphere, use this parameter to enter the volume of the ideal shaped tank (see Figure F-5 on
page 116).
When the PV is a volume measurement from a regular-shaped tank
e.g. square or rectangular, use this parameter to enter the volume change per unit of the base
unit.
When the PV is a volume measurement from an irregular-shaped tank, use this parameter to
enter the maximum volume. See also the Special Plot section on page 112 for defining the irreg-
ular-shaped tank.
Open channel measurement
When the PV is the flow rate in a standard open channel, use this parameter to enter the scale
factor (‘k’ term) in a flow rate calculation. See “Flow measurement” on page 116 for selecting a
standard flow profile.
When the PV is the flow rate in an irregular-shaped open channel, use this parameter to enter the
maximum flow rate. See also the Special Plot section on page 116 for defining the irregu-
lar-shaped channel.
Field Communicator
To view or change the scale factor / k-factor:
1. From the Home screen, select 2: Configure.
2. Select 2: Manual Setup.
3. Select 3: Profiling.
4. Select 4: Scale Factor P013 or 4: k-factor P013,
depending on the Non-Linear Profile selected (see page 107).
5. If a change is required:
(a) Input the new factor, and press “ENTER” to save it.
(b) Press “SEND” to update the transmitter.
Fast Keys
2, 2, 3, 4
Scale Factor P013
1
1
ESC
DEL ENTER
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