DataLoop™ LI25 Level Controller
Instruction Manual
MN301034 rev D
21
Calibrating the Meter
(Cal)
To scale the meter without a signal
source refer to Scaling the Meter
(
sCAlE
), page 21.
The meter can be calibrated to display the process in engineering units by
applying the appropriate input signal and following the calibration procedure.
The use of a calibrated signal source is strongly recommended.
1. Press
the
Up
arrow button to scroll to the
Calibration
menu (CAL) and press
Enter/Ack
.
2.
The meter displays inpt1. Apply a known signal and press
Enter/Ack
. Trend
arrows are displayed while accepting the signal.
3.
After the signal is accepted, the meter displays dspl1. Press
Enter/Ack
,
enter a corresponding display value for the signal input, and press
Enter/Ack
to accept.
4.
The meter displays inpt1. Apply a known signal and press
Enter/Ack
. Trend
arrows are displayed while accepting the signal.
5.
After the signal is accepted, the meter displays dspl2. Press
Enter/Ack
,
enter a corresponding display value for the signal input, and press
Enter/Ack
to accept.
Recalibrating the Internal Calibration Reference
(
ICAL
)
The
Internal Calibration
(
ICAL
) menu, located in the
Advanced
features menu, is
used to recalibrate the internal calibration reference. Recalibration is
recommended at least every twelve months. Refer to Internal Calibration (
ICal
),
page 30 for instructions.
Press Ack to Accept Setting
Press Up to Set Digit Value
Press Right to Select Next Digit
Press Menu to Exit at any
Time
