Rice Lake Intrinsically Safe - Manual (Page 39)

User Manual - Calibration 33
4.0 Calibration
The
320IS
can be calibrated using the front panel, EDP commands, or the Revolution ® configuration utility. Each
method consists of the following steps:
• Zero calibration
• Entering the test weight value
• Span calibration
• Optional re-zero 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
1. Place the indicator in setup mode (display reads
CONFIG
).
2. Remove all weight from the scale platform.
3. If your test weights require hooks or chains, place the hooks or chains on the scale for zero calibration.
4. Press until the display reads
CALIBR
. Press .
WZERO
displays.
5. Press to calibrate zero. The indicator displays
*CAL*
while calibration is in progress. When complete, the
A/D count for the zero calibration is displayed.
DO NOT adjust this value after WSPAN has been set!
6. Press again to save the zero calibration value and go to the next prompt (
WVAL
).
7. Place test weights on the scale.
8. Press to show the test weight value.
9. Use the numeric keypad to enter the actual test weight.
10. Press to save the value.
WSPAN
displays.
11. Press to calibrate span. The indicator displays
*CAL*
while calibrating. When complete, the A/D count
for the span calibration is displayed.
12. Press again to save the span calibration value.
REZERO
displays.
13. Use the rezero function 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 function adjusts the zero and span calibration values.
The indicator displays
*CAL*
while the zero and span calibrations are adjusted. When complete, the
adjusted A/D count for the zero calibration is displayed. Press to save the value, then press to return to
the CALIBR menu.
14. Press until the display reads
CONFIG
.
15. Press to exit setup mode.
When calibrating to a new scale, after exiting setup mode, press the ZERO key to set Zero and adjust for
deadload.
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
* CAL*
Press Enter to
remove offset from
zero and span
calibrations
REZERO
XXXXXXX XXXXXXX XXXXXXX XXXXXXX VERS ALGOUT DIG IN PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT XXXXXXX SETPNT
Note
Note