Thermo Fisher Scientific ECScan High/Low & TDScan High/Low - Manual (Page 4)

Waterproof ECScan Low Instructions
68X247754 11/00 Rev 0
Conductivity Testing
1. Remove electrode cap. Switch unit on (ON/OFF
key).
2. Dip electrode into test solution. Make sure
sensor is fully covered.
3. Wait for reading to stabilize (Automatic
Temperature Compensation cor rects for
temperature changes). Note reading.
4. Press ON/OFF to turn off tester. Replace
electrode cap. Note: Tester automatically
shuts off after 8.5 minutes of non-use.
HOLD Function
Press HOLD key to freeze display. Press HOLD again
to release.
Tester Maintenance
• To improve performance, clean the electrode
by rinsing them in alcohol for 10 to 15 minutes.
• Replace all batteries if low battery indicator
appears, or if readings are faint or unstable.
• If you experience drift, periodically let electrode
fully dry.
When you need a new electrode, see “Electrode
Replacement” on insert in back of box.
Self-Diagnostic Messages
bAt Weak batteries–replace with fresh ones
specified by manufacturer.
Err Wrong keypress.
Or, Ur Over range/Under range signal, or electrode
is not in contact with solution, or electrode is failing.
---- Calibration mode activated but not performed.
Before You Begin
Remove electrode cap. Soak electrode for a few
minutes in alcohol to remove oils.
Calibration
Tester is factory calibrated. However, to ensure
accuracy, calibrate conductivity on a regular basis.
Select a calibration standard appropriate for the
ECScan Low tester (between 200 µS and
1990 µS). It is best to select a standard close
to the test solution value.
1. Open battery compartment lid (end with
lanyard loop).
2. Orientate the battery compartment as
shown in Diagram 1.
3. Rinse electrode in deionized water, then
rinse it in calibration standard, then dip it
into a container of calibration standard.
4. Switch unit on (ON/OFF key). Wait
several minutes for display to stabilize.
5. Press the INC or DEC key to adjust
reading to match the calibration
standard value.
6. After 3 seconds without a key
press, the display flashes 3 times,
then shows ‘ENT’. The tester accepts
calibration value; returns to
measurement mode.
7. Replace battery cap.