Procedure – LaMotte ATQ Digital Series Water Softener Demo Kit User Manual

Page 21

PROCEDURE

HOLD FUNCTION: Press HOLD key to freeze display. Press HOLD again to release.

MAINTENANCE: To improve performance, clean the stainless steel electrodes by periodically rinsing them
in alcohol for 10-15 minutes. Replace all 4 batteries if the display becomes faint or disappears, or if the readings
are unstable or constant. If drift is detected while electrodes are continuously exposed to solution for longer than
one hour, allow electrode to fully dry off periodically.

CHANGING BATTERIES: Open the battery compartment lid. Remove old batteries and replace with fresh
ones noting polarity as shown in the battery compartment. Recalibrate Testr after battery change.

Remove the cap.

Press ON/OFF
button to turn on.

Dip the electrode end
into the test solution.
Make sure the sensor
is fully covered. Stir
once. Let the reading
stabilize.

Allow time for
the Automatic
Temperature
Compensation to
correct the
readings for
solution
temperature
changes.

Note the reading
once the display
stabilizes. If the
solution is above the
range of the
TDSTestr, the
display will show:

Press the ON/OFF
button to turn off Testr.
Note: Testr will
automatically shut
off after 8.5
minutes of
nonuse.

Replace the cap.

You can replace the electrode module at the
fraction of the cost of a new Testr. When the
Testr fails to calibrate or gives fl uctuating readings in calibration standards,
you need to change the electrode.

1. With dry hands, grip the ribbed Testr collar with electrode facing you.

Twist the collar counter clockwise. Save the ribbed Testr collar and

O-ring for later use.

2. Pull the old electrode module away from the Testr.
3. Align the four tabs on the new module so they match the four slots
on

the

Testr.

4. Gently push the module onto the slots to seat in position. Push the

smaller O-ring fully onto the new electrode module. Push the collar

over the module and thread it onto place by fi rmly twisting it clockwise.