palintest Wagtech Potalab+ (C) User Manual

6
Digital Conductivity Meter
46
6.4.8 TDS Calibration
Calibrating TDS with conductivity standards &
adjusting TDS factor Instead of calibrating for TDS
directly using TDS calibration standard solutions,
you can calibrate by using the conductivity
calibration method and enter the appropriate
TDS conversion factor into the meter.
6.4.9 Setting the TDS Conversion Factor
The factory default setting for TDS conversion
factor is 0.5. If your solution has a different TDS
factor, you can improve accuracy by setting the
TDS factor prior to calibration.
1 Press MODE to select TDS mode.
2 Press Setup.
3 Press HOLD/ENTER five times
to scroll until you view P1.4 (tdS).
4 Press HOLD/ENTER. The upper display
shows a value and the lower shows “tdS”.
5 Press MI/ or MR/ to select your
calculated TDS conversion factor.
6 Press the HOLD/ENTER key to confirm.
7 Press the CAL/MEAS key to
return to measurement mode.
6.4.10 Calibrating for TDS using TDS Standards
After setting the correct TDS Factor, you can
calibrate in the TDS mode.
1 Press MODE to select the TDS mode.
2 Follow the instructions in Manual Calibration
for the rest of the calibration process, this
time using the TDS calibration standards.
NOTE: You can offset the TDS reading up to ±
40% from the default setting. If your measured
value differs by more than ± 40%, clean or
replace electrode as needed.
6.5 Measurement
6.5.1 Temperature Compensation
This meter can take measurements with automatic
(ATC) or manual (MTC) temperature compensation.
Factory default is ATC on. For ATC, attach the
conductivity/TDS electrode to the meter. The ATC
indicator will light on the LCD. If the conductivity/
TDS electrode is not properly attached to the meter
or it has been damaged, the ATC indicator will blink
and the temperature display will show ‘Ur’. If the ATC
indicator does not light and the temperature display
shows a reading, the meter might be in MTC mode.
6.5.2 Selecting Temperature
Compensation mode
1 Press SETUP
2 Press HOLD/ENTER 3 times to
scroll until you view P1.3 (AtC)
3 Press HOLD/ENTER. The upper display shows
“ATC” and the lower display shows “YES”.
4 Press MI/ or MR/ to select: ‘YES’,
ATC is on or ‘NO’, ATC is off.
5 Press HOLD/ENTER to confirm selection.
6
Press CAL/MEAS to return to measurement mode.
6.5.3 Setting Manual
Temperature Compensation Value
MTC enables you to enter the temperature value of
your sample into the meter. This is the value at which
the readings will be temperature compensated.
1 Set temperature mode to MTC
and go through step 1 to 6.
2 Press CAL/MEAS. The CAL indicator
will appear above the primary display.
3 Press MODE.
4 Press MI/ or MR/ to offset the
temperature to your preferred settings.
5 Press HOLD/ENTER to confirm
NOTE: To exit this program without confirming
the MTC value, press CAL/MEAS.
6.5.4 Taking Measurements
1
Rinse the electrode with deionised or distilled water
before use. Shake or air dry. To avoid contamination
or dilution of your sample, rinse electrode
with a small volume of your sample liquid.
2 Press ON to switch on meter.
3 Dip the electrode into the sample. When
dipping the electrode into the sample, ensure
that the liquid level is above its upper steel
band. Stir the electrode gently in the sample
to create a homogenous sample.
4 Allow time for the reading to stabilise.
5 Press MODE to toggle between conductivity
and TDS readings (if necessary).

palintest Wagtech Potalab+ (C) Specifications

General

Brand	palintest
Model	Wagtech Potalab+ (C)
Category	Measuring Instruments
Language	English