25
13. Appendix
Addendum 1: Zero Adjustment
Zero adjustment is necessary only if the meter does not
show zero when the probe is dry and in air. Make sure
the probe is washed with deionized water, and air dried.
Zeroing the Meter
1. Connect a clean, air dried conductivity probe to the
meter. Use both BNC socket and the phono socket.
2.
Press CAL/MEAS and then turn ON the meter.
3.
Release the ON key, and then the CAL/MEAS key.
The display will indicate the version number
(i.e. ECO.3).
4.
Press ENTER/RANGE three times.
5. 0.00 µS displays indicating the beginning of zero adjust-
ment for your first range. The secondary display will
show r 1.0.
See Figure 30.
6.
Press ENTER to zero adjust your first range.
7. A 5 digit number appears. This number will be close to
20,000. The “2” in 20,000 appears in the secondary
display.
See Figure 31.
8.
Wait for 10 seconds and press ENTER.
You have now
completed the Zero Adjustment for your first range.
9. The display will show 0.0 µS. You are now at the begin-
ning of your second range. The secondary display will
show r2.0.
10.
Press ENTER to zero adjust your second range.
Repeat steps 7 to 9 for each range you need to zero.
You can zero up to five ranges. The secondary display
will show r3.0, r4.0, and r5.0 as you move to each
new range.
NOTE:
Press CAL/MEAS instead of ENTER to skip to the
next range.
11. When you have zeroed or skipped through the five
ranges, the secondary display will show r6.0. This
indicates the first step of two-point temperature
calibration.
DO NOT press ENTER or CAL/MEAS.
Instead:
• Press the ON/OFF button to turn the meter off,
then press it again to turn the meter on and start
taking measurements.
• Or, proceed to Addendum 2 on page 26 to perform
two-point temperature calibration.
CAL
COND
CAL
COND
Figure 30
Figure 31
warranty/
return of items
appendix
accessories
specifications
error
messages/
troubleshooting
probe care
and
maintenance
setup
program
conductivity
measurement
temperature
calibration
conductivity
calibration
starting up
introduction
Содержание WD-35610-00
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