LaMotte DPC-52 Water Testing Laboratory - Manual (Page 4)

INTRODUCTION
The Water Lab is a colorimeter laboratory for rapid, accurate measurement of pool or spa
water chemistry. The Water Lab may be used to identify the causes of water quality
problems and to determine appropriate corrective treatment. The test results obtained
with this laboratory may be employed in most computer programs for pool water
treatment. The outfit is portable, compact, and easy to use. An inexperienced operator
with no knowledge of chemistry can learn to use the Water Lab in a matter of minutes.
Careful attention to the procedures given in this manual is all that is required to produce
consistently accurate and reliable test results.
The central component of the Water Lab is the battery-powered colorimeter, which
electronically measures the color produced in the chemical test reactions. A separate
User’s Guide provides general operating procedures for the instrument and describes the
proper technique for operating the Direct Reading Titrators used in the alkalinity and
calcium hardness tests. Once you have become familiar with the general operating
techniques of the Water Lab and its components, you will only need to refer to the
condensed instructions provided on the separate laminated card.
TESTER’S GUIDE
*WARNING: Reagents marked with a * are considered to be potential health hazards.
To view or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS CD
or www.lamotte.com. To obtain a printed copy, contact LaMotte by e-mail, phone or fax.
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When conducting a series of tests on a given pool sample, you only need to set the
colorimeter to 0.0 (zero) with the pool sample blank one time.
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Keep ALL reagents tightly capped between tests.
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Do not touch reagent tablets with your fingers. Use the tube cap or tweezers.
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Fill the test tubes to the line, with the bottom of the liquid (meniscus) on the line.
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Carefully wipe off colorimeter tubes before reading. Use a clean, soft tissue.
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Do not mix up pipets (eye droppers).
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When adding drops of reagents, hold dropper bottles and pipets vertically to insure
consistent drop size.
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Thoroughly wash and rinse out test tubes when finished with testing. Use deionized
water to rinse tubes.
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