Rice Lake IQ plus 590-DC Installation Manual - Manual (Page 27)

Calibration 23
4.0 Calibration
The IQ plus 590-DC can be calibrated using the front panel, EDP commands, or the Revolution ™ Scaleware
configuration utility. Each method consists of the following steps:
• Zero calibration
• Entering the test weight value
• Span calibration
• Optional rezero calibration for test weights using hooks or chains.
The following sections describe the calibration procedure for each of the calibration methods.
Figure 4-1. Calibration (CALIBR) Menu
4.1 Front Panel Calibration
To calibrate the indicator using the front panel, do the
following:
1. Place the indicator in setup mode (display
reads CONFIG ) and remove all weight from
the scale platform. If your test weights require
hooks or chains, place the hooks or chains on
the scale for zero calibration.
2. Press until the display reads CALIBR (see
Figure 4-1). Press to go to zero calibration
(
WZERO ).
3. With WZERO displayed, press to calibrate
zero. The indicator displays *CAL* while
calibration is in progress. When complete, the
A / D c o u n t f o r t h e z e r o c a l i b r a t i o n i s
displayed. Press again to save the zero
calibration value and go to the next prompt
(
WVAL ).
4. With WVAL displayed, place test weights on
the scale and press to show the test weight
value. Use the numeric keypad to enter the
actual test weight, then press to save the
value and go to span calibration (
WSPAN ).
5. With WSPAN displayed, press to calibrate
span. The indicator displays *CAL* while
calibration is in progress. When complete, the
A / D c o u n t f o r t h e s p a n c a l i b r a t i o n i s
displayed. Press again to save the span
calibration value and go to the next prompt
(
REZERO ).
6. The rezero function is used to remove a
calibration offset when hooks or chains are
used to hang the test weights.
• If no other apparatus was used to hang the
test weights during calibration, remove
the test weights and press to return to
the CALIBR menu.
• If hooks or chains were used during
calibration, remove these and the test
weights from the scale. With all weight
removed, press to rezero the scale. This
f u n c t i o n a d j u s t s t h e z e r o a n d s p a n
calibration values. The indicator displays
* C A L * w h i l e t h e z e r o a n d s p a n
calibrations are adjusted. When complete,
the adjusted A/D count for the zero
calibration is displayed. Press to enter
the value, then press to return to the
CALIBR menu.
7. Press until the display reads CONFIG , then
press to exit setup mode.
4.2 EDP Command Calibration
To calibrate the indicator using EDP commands, the
indicator EDP port must be connected to a terminal or
personal computer. See Section 2.3.3 on page 6 for
EDP port pin assignments; see Section 5.0 on page 25
for more information about using EDP commands.
Once the indicator is connected to the sending device,
do the following:
1. Place the indicator in setup mode (display
reads CONFIG ) and remove all weight from
the scale platform. If your test weights require
hooks or chains, place the hooks or chains on
the scale for zero calibration.
XXXXXXX XXXXXXX
WZERO
*CAL*
Display and edit
zero calibration
A/D count value
Display and edit
test weight value
WVAL
*CAL*
Display and edit
span calibration
A/D count value
WSPAN
VERS PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
* CAL*
Press Enter to
remove offset from
zero and span
calibrations
REZERO