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Enclosure Reassembly
Once cabling is complete, position the backplate over
the enclosure and reinstall the backplate screws. Use
the torque pattern shown in Figure 2 to prevent
distorting the backplate gasket. Torque screws to 15
in-lb (1.7 N-m).
Analog Output Calibration
The following calibration procedure requires a
multimeter to measure voltage or current output from
the analog output module. No test weights are
required for calibration.
CONFIG
XXXXXXX
FORMAT
SOURCE
OFFSET
0%
GROSS
20%
NET
1. Enter setup mode and go to the ALGOUT
menu (see Figure 3).
•
Set OFFSET to 0% for 0–10 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
To enter MIN and MAX values, use the
keys to select the digit; use
increment or decrement the value.
2. Connect multimeter to analog output:
•
For voltage output, connect voltmeter
leads to pins 3 and 4
•
For current output, connect ammeter
leads to pins 1 and 2
2
IQ plus 355 Analog Output Option
CALIBR
SERIAL
PROGRM
ERRACT
FULLSC
HOLD
ZEROSC
Figure 3. Analog Output Menu
and
and
1
10
To r q u e p a t t e r n
Tor que ba c k p la t e s c r e w s t o 15 in - lb ( 1. 7 N -m )
5
Se t u p s w it c h a c c e s s s c r e w
Fillister head screws
3
Figure 2. IQ plus 355 Enclosure Backplate
NOTE:
The analog output must be calibrated after the
indicator itself has been configured and calibrated.
XXXXXXX
PFORMT
DIG IN
ALGOUT
XXXXXXX
MIN
MAX
000000
10000
number
number
3. Adjust zero calibration: Scroll to the
TWZERO parameter. Check voltage or
current reading on multimeter. Press and hold
to adjust the zero value up or down. **
or
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.
5. Final
zero
TWZERO parameter and verify that the zero
to
calibration has not drifted. Press and hold
or
to re-adjust the zero value as required.
6. Return to normal mode. Analog output
function can be verified using test weights.
**
When using the data stream mode on either port (EDP
or Printer), TWZERO must be set to greater than 50 mV.
8
7
9
XXXXXXX
VERS
TWZERO
TWSPAN
calibration:
Return
4
6
2
to
the
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