26
Addendum 2: Two-point Temperature Calibration
NOTE:
Perform this procedure when you begin to use a
replacement conductivity probe.
1.
Switch the meter off to access this function.
Make
sure your temperature probe is plugged into the instru-
ment. You MUST have two constant temperature baths;
preferably one set to 10.0°C and the other at 70°C.
2.
Press and hold the CAL/MEAS button and simulta-
neously press and release the ON/OFF button.
3.
When the unit is on for 2 seconds, release the
CAL/MEAS button.
The display will indicate the
version number (i.e. ECO.3).
4.
Press the ENTER key three times.
The primary
display will show 0.00 µS and the secondary display
will show r1.0.
5.
Press the CAL/MEAS key five times
until the primary
display shows the last calibrated high temperature
point, the secondary display shows r6.0 and the
temperature indicator appears in the lower right hand
corner.
See Figure 32
The meter is ready for hardware temperature calibration.
Calibrating the 1st Temperature Point
NOTE:
If you don’t want to change the first(lower)
temperature setting, press CAL/MEAS and skip to
the calibration of the second temperature point.
NOTE:
To exit at any time, press the ON/OFF key.
1.
Place the probe into the low temperature bath
.
Allow some time for the probe to stabilize.
2.
Press the
▲
and
▼
keys
to adjust the number in the
primary display to match the actual temperature of
your bath. For example, if your temperature bath is
actually set at 11.5°C, adjust the meter display to
11.5°C.
See Figure 33.
3.
Press the ENTER key.
The primary and secondary dis-
plays will show the digital counts equivalent to the
temperature value. Wait for this value to stabilize.
See Figure 34
.
4.
Once the value is stable, press the ENTER key
again
. The display will automatically scroll to r6.1,
which lets you adjust the high temperature point.
warranty/
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appendix
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setup
program
conductivity
measurement
temperature
calibration
conductivity
calibration
starting up
introduction
CAL
TEMP
Figure 32
CAL
TEMP
Figure 33
CAL
TEMP
Figure 34
Содержание WD-35610-00
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