Hanna Instruments HI 9828 - Manual (Page 21)

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pH, mV of pH Input, ORP, D.O. % Saturation, Salinity
These parameters can only be enabled or dis-
abled; the measure unit and the resolution are
fixed.
D.O. concentration
It is possible to select ppm or mg/L measure unit.
Conductivity and Actual Conductivity
It is possible to select among the following op-
tions: Auto (autoranging both µS/cm and mS/
cm ranges), 1 µS/cm, 0.001 mS/cm, 0.01 mS/
cm, 0.1 mS/cm, 1 mS/cm, Auto mS (autorang-
ing for mS/cm ranges).
NO NO NO NO NOTE TE TE TE TE The actual conductivity is the conductivity reading with no temperature
compensation.
Resistivity
It is possible to select Ω·cm, kΩ·cm or MΩ·cm.
TDS
It is possible to select among the following op-
tions: Auto (autoranging both ppm (mg/L) and
ppt (g/L) ranges), 1 ppm (mg/L), 0.001 ppt (g/
L), 0.01 ppt (g/L), 0.1 ppt (g/L), 1 ppt (g/l), Auto
ppt (g/L) (autoranging for ppt (g/L) ranges).
NO NO NO NO NOTE TE TE TE TE For setting ppm or mg/L, see paragraph 3.2 “System Setup”.
Seawater specific gravity
This value is a widely used parameter for seawater; it is similar to density mea-
surement and it is an expression of salt content in water.
It depends on water
pressure, temperature and salinity.
In the seawater specific gravity menu it is possible to select the reference tem-
perature: σ
t
, σ
0
and σ
15
(i.e. current temperature, t=0°C and t=15°C).
Atmospheric pressure
It is possible to select among the following mea-
sure units: atm, kPA, mmHg, inHg, mbar, psi.