Halma Wagtech Palintest Potatest Go, Руководство пользователя

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8.1 Jackson Turbidity Tubes
The two-part Turbidity Tube provides a
simple and intuitive method of determining
turbidity using a visual approach. Higher
values of turbidity can be determined using
the base section only, lower values require
both sections.
8.1.1 Taking Turbidity Measurements
Connect the two parts of the Turbidity Tube
together if the result is expected to be less
than 20
JTU .
Place the Turbidity Tube in a position where
the base containing the cross can be observed.
Pour sample slowly into the Turbidity Tube
until the cross is not clearly visible.
Read the turbidity value from the level of
sample against the scale etched on the tube.
Estimate the result if the level is between values.
Empty the Turbidity Tube and rinse with clean
water prior to storage.
8.2 Pocket pH Sensor
The Pocket pH Sensor is a waterproof
digital instrument featuring dual display of
pH and temperature, plus automatic buffer
recognition for simple calibration.
8.2.1 Taking pH Measurements
Remove the protective cap and press
ON/OFF to switch the meter on.
Dip the electrode into 2-3cm of sample, rotate
gently and wait for the reading to stabilise. The
protective cap is a useful sample container.
Note the reading or
press
HOLD/ENT to
store the reading on
the display.
Press
HOLD/ENT to
return the display to
normal mode.
After measurement
rinse the electrode
with clean water.
Store the electrode with
a moist piece of paper
in the protective cap if
possible to avoid the
electrode drying out.
8.2.2 Calibrating the pH Probe
Prepare the calibration solutions - A single
point or up to three points may be used
for calibration.
Remove the protective cap and press
ON/OFF to switch the meter on.
Press CAL to enter calibration mode.
The upper display will show the actual reading,
the lower display will show the buffer value.
Insert the probe into 2-3cm
of buffer solution and
stir/rotate gently. The
protective cap can be
used to hold the buffer.
Allow the reading
to stabilise and press
HOLD/ENT to confirm
the value.
Rinse the electrode
with clean water and
repeat as required with
additional buffers.
Press
CAL to exit
calibration mode at
any point.
8
Water Safety Kit (WSK)