4 PH100/PH110-en-US_V3.3 10/21
Operation
Overview
When the electrode is placed in a solution, the main display and bargraph indicate the pH reading
while the lower display reads temperature (readings flash until they have stabilized). The bargraph
is ‘center zero’, i.e. at pH 7 there is no display. As the pH rises, the bar moves from the center to the
right. If the pH drops, the bar moves from the center to the left.
pH Calibration (1, 2, or 3 points)
A two point calibration with a buffer of 7 plus 4 or 10 (whichever is nearest to the expected sample
value) is always recommended. A one point calibration (choose the value closest to the expected
sample value) is also valid. For best accuracy, calibrate at the sample temperature.
1. Place the electrode into a buffer solution (4, 7, or 10) and short press the CAL key. pH 7
should be calibrated first, then 4 and/or 10 pH.
2. The ExStik
TM
automatically recognizes the solution and calibrates itself to that value. Note: If
the solution is more than 1pH off from the 4, 7, or 10pH standard, the ExStik
TM
will assume an
error and abort the calibration. CAL and END will be displayed.
3. During calibration, the pH reading flashes on the main display.
4. When calibration is complete, the ExStik
TM
automatically displays ‘END’ and returns to normal
operation mode.
5. The appropriate circled indicator ➃,➆, or ➉will appear on the LCD when a calibration has
been completed. The calibration data is stored until a new calibration is performed.
6. For a two or three point calibration, repeat steps 1-4.
Note: Always turn the meter off and then on before calibrating to allow sufficient time to complete
the calibrations during one power cycle. If the meter auto powers off during calibration the
calibrations remain valid, but new calibrations will turn the circled indicators off.
Note: The Automatic Temperature Compensation (ATC) circuit is not active during calibration. To
ensure a more accurate calibration, make sure that the calibration buffers are at 25°C (77°F).
RESET
If the meter will not calibrate or displays a -1, reset the meter and attempt to re-calibrate.
1. Turn off the meter.
2. Remove the battery cartridge from the top of the meter.
3. Press the On/Off button for 10 seconds to bleed off all charges within the meter.
4. Re-insert the batteries and power on the meter.
5. Attempt to re-calibrate the meter.
Changing the Displayed Temperature Units
Press and hold the CAL button for approx. 3 seconds. The
o
C or
o
F icon will change first and the
numerical temperature value will change after the button is released. If the Calibration mode is
accidentally accessed ‘CAL’ appears on the LCD. Simply turn the ExStik
TM
off and start again.
Data Hold
Short press the MODE button to freeze the current reading. The HOLD display icon will appear
along with the held reading. The held reading will also be stored in memory. Short press the MODE
key to return to normal operation.
To Next Page
Loading...
Need help?
General
