PLATINUM
TM
Series Controllers User
’s
Guide
M5451
Omega Engineering | www.omega.com
34
Reference Section: Initialization Mode (INIt)
6.2
TARE (INIt > tARE)
Select TARE (
tARE
) to configure the tare option.
Navigate to the desired setting. Settings include the following:
dSbL
–
No TARE option is enabled
ENbL
–
TARE option may be activated from RUN menu
RMt
–
TARE option may be activated from RUN menu or by digital input
The Tare option is only available for process inputs. If enabled (ENbL or RMt) the OPERATING
menu is expanded to include a TARE option that allows zeroing the reading value when the
unit is in the RUN mode.
If the remote option is selected the reading may be zeroed using either the panel button or
the digital input while in the RUN mode.
When activated, the TARE process applies an offset adjustment to the current reading such
that the adjusted reading will be zero.
Select the indicated setting.
6.3
LINR (INIt > LINR)
Select 10 Point Linearization option. The 10 point linearization allows entering up to 10
Reading/Input value pairs used to internally calculate 10 gain/offset parameters. The LINR
option is only available on Process inputs.
Select the Number of Points (N.PNt
The N.Pts option determines how many of the Reading/Input pairs are processed. To disable
the Linearization function set the Number of points to 0.
Select the indicated setting.
Choose either manual or live inputs. The defaults for each input pair 100.0 Reading and 100.0
Input Scaling methods include the following:
MANL
–
User manually enters both parameters
LIVE
–
User manually enters the display values (
RD.
n
) but the signal level is read
from the input set the input values (
IN.
n
)
Using either MANL or LIVE linearization Gain/Offset pairs are calculated as:
Gain = (
Rd.n
–
Rd.n-1
) / (
IN.n
–
IN.n-1
)
Offset =
Rd.n-1
–
(Gain *
IN.n-1
)
During processing the input level is compared to the set of input levels stored to determine
which gain/offset pair to apply.
Select the linearization method to be used.
Navigate to the desired scaling parameter. Options include the following:
Rd.n
–
Reading low value corresponding to
IN.1
signal
IN.n
–
Input signal corresponding to
RD.1
In Manual Mode,
IN.
n
is entered manually. In Live Mode, the
IN.
n
option displays the current
input signal.
Select the scaling parameter to change.
