Pocket Ph Sensor - Halma Palintest Potatech+ Manual

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Pocket pH Sensor

10.0 Pocket pH Sensor 10.0 Pocket pH Sensor
The Pocket pH Sensor is a waterproof digital The Pocket pH Sensor is a waterproof digital
instrument featuring dual display of pH and instrument featuring dual display of pH and
temperature, plus automatic buffer recognition temperature, plus automatic buffer recognition
for simple calibration. for simple calibration.
10.1 Taking pH Measurements 10.1 Taking pH Measurements
Remove the protective cap and press ON/OFF Remove the protective cap and press ON/OFF
to switch the meter on. to switch the meter on.
Dip the electrode into 2-3cm of sample, rotate Dip the electrode into 2-3cm of sample, rotate
gently and wait for the reading to stabilise. gently and wait for the reading to stabilise.
The protective cap is a useful sample container. The protective cap is a useful sample container.
10.1.1 Calibrating the pH Probe 10.1.1 Calibrating the pH Probe
Prepare the calibration solutions - A single point Prepare the calibration solutions - A single point
or up to three points may be used for calibration. or up to three points may be used for calibration.
Remove the protective cap and press ON/OFF Remove the protective cap and press ON/OFF
to switch the meter on. to switch the meter on.
Press CAL to enter calibration mode. Press CAL to enter calibration mode.
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Note the reading or press Note the reading or press
HOLD/ENT to store the HOLD/ENT to store the
reading on the display. reading on the display.
Press HOLD/ENT to return Press HOLD/ENT to return
the display to normal mode. the display to normal mode.
After measurement rinse the After measurement rinse the
electrode with clean water. electrode with clean water.
Store the electrode with a Store the electrode with a
moist piece of paper in the moist piece of paper in the
protective cap if possible protective cap if possible
to avoid the electrode to avoid the electrode
drying out. drying out.
The upper display will show The upper display will show
the actual reading, the the actual reading, the
lower display will show lower display will show
the buffer value. the buffer value.
Insert the probe into 2-3cm of Insert the probe into 2-3cm of
buffer solution and stir/rotate buffer solution and stir/rotate
gently. The protective cap can gently. The protective cap can
be used to hold the buffer. be used to hold the buffer.
Allow the reading to stabilise Allow the reading to stabilise
and press HOLD/ENT to and press HOLD/ENT to
confirm the value. confirm the value.
Rinse the electrode with clean Rinse the electrode with clean
water and repeat as required water and repeat as required
with additional buffers. with additional buffers.
Press CAL to exit calibration Press CAL to exit calibration
mode at any point. mode at any point.
10.1.2 Calibrating Temperature 10.1.2 Calibrating Temperature
ON/OFF to switch the meter on. ON/OFF to switch the meter on.
Press HOLD/ENT Press HOLD/ENT
Press and hold CAL for 3 seconds to Press and hold CAL for 3 seconds to
enter temperature calibration mode. enter temperature calibration mode.
Press CAL to select °C or °F and the Press CAL to select °C or °F and the
upper display will flash. upper display will flash.
Insert the probe into a solution of known Insert the probe into a solution of known
temperature and press HOLD/ENT to temperature and press HOLD/ENT to
adjust the reading.
adjust the reading.
After 5 seconds the calibration will be stored After 5 seconds the calibration will be stored
and the meter will revert to normal mode. and the meter will revert to normal mode.
10.1.3 Changing Batteries 10.1.3 Changing Batteries
Unscrew top casing to expose the Unscrew top casing to expose the
battery compartment. battery compartment.
Replace with 4 'A76' button cell Replace with 4 'A76' button cell
batteries, noting polarity. batteries, noting polarity.
Replace top casing. Replace top casing.
10.1.4 Error Codes 10.1.4 Error Codes
• Er.0 - temperature calibration is out • Er.0 - temperature calibration is out
of range. Use solution from 0-50°C of range. Use solution from 0-50°C
• Er.1 - pH calibration solutions are out • Er.1 - pH calibration solutions are out
of range. Replace buffers with fresh. of range. Replace buffers with fresh.
If problem persists replace pH electrode If problem persists replace pH electrode