Rice Lake 320IS Plus Intrinsically Safe Digital Weight Indicator - Installation Manual - Manual (Page 75)

320IS Plus Installation Manual - Appendix A 69
8.7 Analog Output Calibration
The following calibration procedure requires a multimeter to measure voltage or current output from the analog
output of the I/O module. If the option is not already installed, see Section 3.2.8 on page 38.
The analog output must be calibrated after the indicator itself has been configured (Section 3.0 on page 21)
and calibrated (Section 4.0 on page 41).
Figure 8-3. Analog Output Menu
1. Enter setup mode and go to the ALGOUT menu (see Figure 8-3). See Table 9-7 on page 76 for
information on switch settings.
•
Set OFFSET to 0% for 0-5 V, ±5 V, ±10 V output, 20% for 4–20 mA output
• Set MIN to lowest weight value to be tracked by the analog output
• Set MAX to highest weight value to be tracked by the analog output
2. Connect multimeter to desired analog output:
• For voltage output, connect voltmeter leads to pins 1 and 3 for ALOUT1 or pins 6 and 5 for
ALOUT2
• For current output, connect ampmeter leads to pins 1 and 2 ALOUT1 or pins 4 and 6 for ALOUT2
3. Adjust zero calibration: Scroll to the TWZERO parameter. Check voltage or current reading on
multimeter. Press and hold or to adjust the zero value up or down. Press
Enter
to save the displayed
value.
4. Adjust span calibration: Scroll to the TWSPAN parameter. Check voltage or current reading on
multimeter. Press and hold or to adjust the span value up or down. Press
Enter
to save the displayed
value.
5. Final zero calibration: Return to the TWZERO parameter and verify that the zero calibration has not
drifted. Press and hold or to re-adjust the zero value as required. Press
Enter
to save the displayed
value.
6. Return to normal mode. Analog output function can be verified using test weights.
Note
SOURCE
GROSS 0%
20%
OFFSET ERRACT
FULLSC
HOLD
000000
number
MI N
10000
number
MAX TWZERO
NET
TWSPAN
ZEROSC
ALOUT1
0
number
65300
number
ALOUT2
XXXXXXX XXXXXXX XXXXXXX XXXXXXX VERS ALGOUT DIG IN PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT XXXXXXX SETPNT
SOURCE
GROSS 0%
20%
OFFSET ERRACT
FULLSC
HOLD
000000
number
MI N
10000
number
MAX TWZERO
NET
TWSPAN
ZEROSC
0
number
65300
number