Calibration Methods; Calibration Modes - Cardinal 225 Installation And Technical Manual

CALIBRATION AND SETUP, CONT.

CALIBRATION METHODS

Th e 225 has two methods to enter the calibration procedure. One method is selected from the
SE TUP/REVIEW MENU and the other method selected from SETUP MENU #2.
Fr om SETUP/REVIEW MENU:
With the SETUP/REVIEW MENU displayed, press the 3 key and then the ENTER key. This
method proceeds directly
point position and the first calibration parameter, CAL 1=0.0.
From SETUP MENU #2:
With the SETUP MENU #2 displayed, press the 5 key and then the ENTER key to proceed
to SCALE 1 CALIBRATION MENU. With the SCALE 1 CALIBRATION MENU displayed,
press the 1 and 0 keys and then
CALIBRATION MENU to show the settings for the capacity, interval, decimal point position
and the first calibration parameter, CAL 1=0.0.

CALIBRATION MODES

The 225 indicator has seven modes that can be used to perform calibration. Four of the
m odes require a test load (weight), one e
last two use parameter values or the calibration "C" num
calibration modes are as follows:
1. Multi-Point
This method requires two weights, an empty scale and has two conversion factors. It uses
three calibration points; CAL 1=, CAL 2= and CAL 3=. The three points corres
zero weight, mid-point weight and test load (weight) and can be applied in any order.
2. Dual-Poin t w ith Zero (First Zero)
This is a s tandard calibration method requiring one weight, an
factor. This method uses two calibration points (CAL 1= and CAL
conversion
establish a zero (no load) calibration value and to span the indicator. The two points
correspond to zero weight and test load (weight) and can be applied in any order. This
method should be us
3. Dual-Point without
U
This calibration method requires one test weight and establishes a new conversion factor
only. It is used to establish a false (temporary zero) zero without affecting the zero
calibration value stored during the last calibration. This is particularly useful in tank
weighing applications, where it may b
tank. This method uses two calibration po
test load (weight) is entered when CAL 1= is displayed and then the N
pressed when CAL 2= is displayed.
8200-M538-O1 225 Installation
to a display showing the settings for the
the ENTER key. This method will change the SCALE 1
r quires the scale to be empty (and at zero) and the
ed for first-time ca libration and complete recalibration.
Zero (False Zero)
U
e impractical or impossible to completely empty the
bers from a previous calibration. The
ints, CAL 1= and CAL 2=. The value of the
capacity, interval, decimal
empty scale and has one
2=) to
ET/GROSS key
pond to
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