Water change necessary?
Osmose water OK?
Resins of demineralizer OK?
EC measuring instrument EC-1382 is small, handy
and ultraportabel. The measuring instrument has a 3 digits
LCD announcement and an automatic temperature compensation
of 0-50°C. Ideal employment in aquaristic, drinking
water production, cleanliness of swimming pool and pool, landed
on water, storage water heater water, household, office, aquarium,
teaching material for physics and chemistry lessons, galvanic shop,
ionized water and laboratory. The values are well readable with
the large clear display. The EC meter will come with a storage box.
equipment normally needs no calibration. For precise
measurements e.g. aquarium we recommend our model EC-1382
or EC-1382B for continuous measurements to aquarium.
TDS/ Conductance/ Conductivity in practice use:
In the aquaristic is the conductance (conductivity) apart from the
pH value an important character-istic for the water quality. With
this EC meter you can examine the quality of the pure water from
your osmose device or full demineralizer or the quality of your
aquarium water/ blend water with the water change.
The measurement in the fresh water aquarium results in 600 µS/cm,
in the tap water however 300 µS/cm. Thus a partial water change
is to be done.
Examine the quality of your water. As appoximate values to water
is considered generally: Water to 120 µS as very good deslagging
and is favorable to health. Of 300 - 600µS is the water rather
loading and starting from 600 µS it is to be designated as
In the case of control in the sea water basin 53000 results µS/cm.
From the usual conductivity tables of sea water (with 25°C)
you read a content of salt of 35 parts per thousand with 53,8 (mscm)
off. Sea water is correct.
With control of your permeat of a reverse osmosis device you obtain
a measured value from 20 µS/cm. The permeat is thus correct.
here for further calibration and maintanance liquids
is the electrical conductivity actually?
With demineralized water, no solved CO2 contained you measures the
conductivity zero (actually it would be 0.055 µS/cm). That
corresponds to the intrinsic conductivity of the water (h-ions and
OH ions dissociate). In the qquaristic applies: Demineralized water
has practically no conductivity. The addition spoon common salt
(10g) into a litre demineralized water causes a value of 15000 µS/cm.
The common salt (NaCl) dissolves completely in sodium ions (Na+)
and chloride ions (Cl -) and so an ionic conduction is produced.