PD6800-0L1 Loop-Powered Process Meter
Instruction Manual
36
Internal Calibration (
ICAL
)
There is
no need to recalibrate
the meter when first received from
the factory. The meter is
factory calibrated
prior to shipment. The
calibration equipment is traceable to NIST standards
The internal calibration is the meter’s master calibration that makes scaling the meter
without a signal source possible. Use of a calibrated signal source is necessary to
perform an internal calibration of the meter. Check calibration of the meter at least
every 12 months. Incorrect calibration will affect the ability of the meter to properly
read, scale, and display the input.
Notes:
The signal source must have a full-scale accuracy of 0.002% or
better between 4 and 20 mA in order to maintain the specified
accuracy of the meter.
Allow the meter to warm up for at least 15 minutes before
performing the calibration procedure.
Press
MENU
, navigate to
ADVANCE
and press enter to access the
Advanced
Features
Menu
. Press the
UP
arrow button to scroll to the
Internal Calibration
menu (
ICAL
)
and press
ENTER
.
The meter displays
4.000
. Apply a 4.000 mA signal and press
ENTER
. The display
flashes for a moment while the meter is accepting the signal.
After the signal is accepted, the meter displays
20.000
. Apply a 20.000 mA signal and
press
ENTER
. The display flashes for a moment while the meter is accepting the
signal.
Calibration Error Message (
Error
SPAN
)
An error message indicates that the calibration process was not successful. After the
error message is displayed, the meter will revert to the
4.000
calibration menu. The
error message might be caused by inadvertently leaving the signal at the previous
level or not maintaining the minimum span. Press the
MENU
button to cancel the
current calibration process if necessary.
