Measurement Procedure
• Press the ON/OFF button to turn the checker
on. All segments will be displayed for a few
seconds, followed by “Add”, “C.1” with “Press”
blinking.
•
Fill the cuvette with 10 mL of unreacted sample
and replace the cap. Insert the cuvette into the
checker and close the cap.
•
Press the ON/OFF button. When the display
shows “Add”, “C.2” with “Press” blinking, the
checker is zeroed.
•
Remove the cuvette, unscrew the cap and add
the content of one packet of HI774-0 Marine
Phosphate Ultra Low Range reagent. Replace
the cap and shake gently for about 2 minutes
until the powder is completely dissolved.
• Insert the cuvette into the checker and close the
cap. Press and hold the ON/OFF button. The
display will show the countdown prior to the
measurement. Alternatively, wait 3 minutes
and press the button.
•
When the timer ends the checker will perform
the reading. The instrument displays the
phosphate concentration in ppm. The checker
automatically turns off 2 minutes after reading.
Sample cuvette and cap (2 pcs.)
•
1.5V AAA Alkaline battery (1 pc.)
•
Errors & Warnings
The checker shows clear warning messages when erroneous conditions appear and
when measured values are outside the expected range. The information below
provides an explanation of the errors and warnings, and the recommended action
to be taken.
Light High: There is an excess amount of ambient light
reaching the detector. Please check the preparation of the zero
cuvette.
Light Low: There is not enough light to perform a measurement.
Please check the preparation of the zero cuvette.
Inverted Cuvettes: The sample and the zero cuvettes are
inverted. Swap the cuvettes and repeat the measurement.
Under Range: A blinking “0.00” indicates that the sample
absorbs less light than the zero reference. Check the
measurement procedure and make sure to use the same cuvette
for reference (zero) and measurement.
Over Range: Maximum concentration value displayed blinking
indicates the measured value is outside the limits of the method.
Verify that the sample does not contain any debris. Dilute the
sample and repeat the measurement.
Battery Low: Battery level is too low for the checker to function
properly. Replace the battery with a new one.
Drained Battery: The battery is drained and must be replaced.
Replace the battery with a new one and restart the checker.
w ww . . co m
information@itm.com1.800.561.8187
To Next Page
Loading...
Need help?
General
