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Caution
!
Do NOT change any VOLTS
calibration values while
calibrating the indicator. Do not
press ENTER while viewing
values.
NOTE:
If the complete configuration from
another IQ plus 800/810 is ever
downloaded to this indicator, the
voltage calibration values from the
other indicator will replace the
original values. It will then be
necessary to re-enter the original
voltage calibration values (from the
chart at right). This is done in setup
mode by scrolling to the appropriate
parameter displays under the
CALIBRT submenu. The original
values can be keyed in with the
keypad, and saved by pressing the
ENTER key.
Record VOLTS calibration values here
®
4-2
IQplus
800/810 Installation Manual
5.
Press UP ARROW to display W VAL. Press RIGHT ARROW to
display W SPAN. Press DOWN ARROW to display current default
value. Place test weight on scale and allow to settle. Repeat a second
time to verify that the results are similar but not identical. Press EN-
TER and wait until a value reappears on the display. Enter this value as
"W SPAN" in the chart for channel 1. This is a calibration number, not
a weight value. Remove the test weight.
6.
Repeat the above steps for channels 2 - 4 if necessary.
7.
Slide the setup switch on the CPU board back to the previous position
to exit setup mode.
FOR UNITS MANUFACTURED PRIOR TO JULY, 1996
IQ plus 800/810 CPU boards manufactured prior to July, 1996 had separate
A/D converters bolted to standoffs on their CPU boards. These replaceable
A/D converters were matched to their CPU boards by a set of voltage
calibration numbers. These voltage calibration values appeared under a
separate VOLTS submenu in the CALIBRT menu.
When replacing an A/D converter on one of these older units, it is necessary
to go into the VOLTS submenu and replace the existing voltage calibration
numbers with the new ones found on the replacement converter. This step
will match the new A/D converter to the existing board.
Current CPU boards are built with integral, non-replaceable A/D converters.
With these models, there is no need to enter the VOLTS submenu during
calibration except as noted at left.
VOLTS
CHANNEL 1
CHANNEL 2
CHANNEL 3
CHANNEL 4
V ZERO
V VAL
V SPAN
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