User Guide

GENERAL INFORMATION:
The SALINTEST utilizes a sodium ion-selective glass
electrode to determine the activity of sodium ions in
solution.
When dissolved, NaCl ionizes to form Na
+
and Cl
-
ions.
Measurement of concentration of the Na
+
ions is an
indicator of the concentration of NaCl.
The relationship between the SALINTEST reading
and the g/L NaCl scale is shown in the logaritmic
chart below.
A double junction reference is used to ensure a
highly stable reading.
If you suspect that the calibration has drifted, you
ca recalibrate by using HI7081 or a solution of
known concentration (adjust the reading with the
calibration trimmer).
HOW TO USE THE CHART:
• Locate the pNa reading on the horizontal axis of
the chart.
• Move vertically upwards to intersect with the 45º
line.
• Move horizontally and read the g/L NaCl value.
E.g. Display = 0.42
g/L NaCl = 22
OPERATION:
• Remove the protective cap and turn
the meter on with the ON/OFF
switch located on the top.
• Immerse it into solution to be tested
without exceeding the maximum
immersion level.
• Stir gently and wait for the read-
ing to stabilize.
• Read the value on display and use
the chart to convert the reading to
g/L NaCl.
• After use, switch the meter off and
rinse the electrode with water to
minimize contamination. Always re-
place the protective cap after use.
• Large differences in pNa readings (±0.1) could
be due to a dry electrode or lack in calibration.
• To improve performance, leave the meter in
HI7081 solution for a few minutes at least once a
week.
SALINTEST
HI98203
Salinity Concentration
Pocket-sized Meter
Manufacturers since 1978