PD6701 Field-Mount Loop-Powered Feet & Inches Level Meter
Instruction Manual
18
Level Input Live Signal Calibration
(
LVL CAL
)
The meter can be calibrated using a current source
instead of scaling. This process will override
previously programmed scaling of the level display.
The use of a calibrated signal source is strongly
recommended.
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 and hold the
MENU
button for 5 seconds to
enter the
Advanced
Features
menu. Press the
UP
arrow button to scroll to the
Internal Calibration
menu
(
ICAL
) and press
ENTER
.
The meter displays
4 mA
. 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 mA
.
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 (
SPN ERR
)
An error message indicates that the calibration
process was not successful. After the error
message is displayed, the meter will revert to the
4 mA
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.
Level Input Multipoint Linearization
(
MULTIPT
)
This menu enables multipoint linearization for scaling
and calibrating of the level display.
Setting
MULTIPT
to
ENABLE
allows the level display to
be scaled or calibrated using up to 32 points. See
, to
include a
Number of Points
(
NO PTS
) parameter
before entering
Input 1
.
32-point linearization can be used to linearize the
display for non-linear signals.
PD6701 Displaying Height in Feet and Inches and
Volume (Using Multi-Point Linearization Feature) in
Gallons in a Round Horizontal Tank.
Information (
INFO
)
The
Information
menu shows the software
identification number and version number.
To determine the software version of a meter:
Go to the
Information
menu (
INF
O
) and press
ENTER
button.
Continue pressing
ENTER
to scroll through the
software release number and software version.
Following the information display, the meter will exit
the
Advanced
Features
menu and return to run mode.
