FAQs for AquaChek® TruTest™ Test Strip Reader
Q: What can I expect for the precision of the test parameters?
A: The precision of the unit can be reported as the following:
- FC, 0-1ppm range +/- 0.3ppm : 3-10ppm range +/- 1ppm
- pH, entire range +/- 0.1pH
- TA, entire range +/-30ppm
It can be noted that as with any test, technique consistency will improve precision results.
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Q: What is the dynamic test range for the TruTest?
- FC, 0-15ppm
- pH, 6.1-8.8
- TA, 0-300ppm
It should be noted that the Er messages will be displayed when testing
pool samples outside of these calibrated test ranges (reference in the manual).
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Q: Can I compare the TruTest results to other test methods?
A: The accuracy of the unit should only be compared to visual test methods.
This is because the unit is capable of reporting numerical results between colorblocks
and therefore the unit can be considered to be more accurate than a visual colorimetric
evaluation (involving both human interpretation and interpolation). Digital readout
in place of color interpretation is TruTest’s main benefit resonating with many pool/spa owners.
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Q: How long will the batteries last? How long will the unit last?
A: The AA batteries should last an entire pool season’s worth of testing. The display
window will flash “LO” if the batteries are below a certain level of power needed to
perform a test. The unit has been developed for the consumer’s pool environment. With
good cleaning and storage habits, the meter should last longer than 3 years.
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Q: Why does the unit sometimes not appear to stay “ON”?
A: The “on” button if depressed quickly on and off can cause conflicts with the software,
appearing to not “stay on (or off)”. Simply waiting a minute or so before pressing the ON
button should help clear the cycle.
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Q: What does "LO" in the TA location of the TruTest meter display mean?
A: The meter displays "LO" in the TA location when the battery voltage
drops below the permissible limit. Start and Scroll functions are disabled and the meter
turns off automatically within 3-5 seconds. Even if the meter is turned ON again, it would
turn off after displaying "LO". If a low battery condition is detected during the Test/Run
cycle, instead of pool values the meter returns a "LO" on display at the TA location and
turns off.
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Q: How should I be cleaning my TruTest?
A: A simple, non-abrasive wiping of the test strip window and all other surfaces with
clean, fresh water should clear any residual chemicals remaining from pool testing.
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Q: What will happen if the meter falls into the pool/spa?
A: The meter was designed to withstand this kind of accidental submersion and should
float upon entry into the water. Simply remove the meter, take out the batteries from
the battery compartment, dry the battery compartment thoroughly and replace with dry
batteries. The meter should return to full performance.
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Q: Should I “place” or “slide” the test strip onto the test strip window?
A: It is very important that you do not slide the test strip on the window. This
action will result in inaccurate readings. A simple method is to place the first pad
nearest the top of the strip onto the window first, then lower the rest of the strip
down onto the window. This will ensure that the strip is all the way in and down onto
the window.
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Error Messages
If ER appears in place of a numerical value – the test result is out of range. The
parameter is either too high or too low to be accurately analyzed. Note the status
level, LO or HI to determine how to treat your water. Re-test after treatment.
If ER2 appears on the screen – there is an error in reading the test strip. Ensrue that
you are following the test procedure correctly. Use only AquaChek® TruTest instrumental
test strips. No other test strip can be used.
If ER3 appears on the screen – no strip is in place or the test strip is positioned
incorrectly. The correct position is with the test pads face down in the slot with
the top pad all the way to the top.
Test Strip Use
The AquaChek® TruTest test strips are calibrated to work only with the AquaChek® TruTest test strip reader.
Each strip may only be used once. Do not re-dip the strip. Only dip the strip in calm areas of your pool or spa.
Ensure you have a fresh supply – keep cap on tight between uses and store at room temperature.
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