Horiba Scientific LAQUAact D-75G, Instruction Manual

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Product Handling Information
XIII
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Product Handling Information
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Operational precautions (instrument)
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Only use the product including accessories for their intended purpose.
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The function that measuring dissolved oxygen of the instrument is only usable for
measuring under water. Do not use this function for the application except described
above.
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Do not drop, crash, or give any physical impact on the instrument.
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The instrument is made of solvent-resistant materials but that does not mean it is
resistant to all chemicals. Do not dip the instrument in strong acid or alkali solution, or
wipe with such solution.
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If the instrument is dropped into water or gets wet, wipe it using soft cloth. Do not heat
to dry it with a hair-dryer (or the like).
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The instrument has a dust-proof and waterproof structure. Waterproof performance is
following specification: the instrument does not malfunction even when immersed in
water of 1 m depth for 30 minutes.
This does not mean to guarantee non-destructive, trouble-free, dust-proof, and
waterproof performance in all situations. If the instrument is correctly handled
according to the descriptions in this manual, the instrument provides dust-proof and
waterproof performance.
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When replacing the batteries, while connected to the AC adapter, or during the RS-
232C communication, the instrument does not have the dust-proof and waterproof
performance. The dust-proof and waterproof performance is maintained only when the
covers are attached correctly.
・ After replacing the batteries, connecting the AC adapter, and using the RS-232C
communication, make sure that the waterproof packing attached to each cover is not
deformed or discolored, or has foreign matter adhering to it. If the waterproof packing
is deformed, discolored or has foreign matter adhering to it, or dust could get inside,
water leaks could occur that could lead to instrument malfunction.
・ To disconnect an electrode or AC adapter cable or serial cable, hold the connector and
pull it off. If you pull at the cable, it may cause a breakage.
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The RS-232C communication between the instrument and a personal computer (PC)
may fail because of environmental conditions, such as (radio/electromagnetic) noise.
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Do not replace the batteries, connect the AC adapter, or use the RS-232C
communication in a dusty place or with wet hands. Dust or moisture could get inside
the instrument, possibly causing instrument malfunction.
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Do not use the tip of a nail or an object with a sharp end to press the keys.