Extech Instruments PH210 User Manual page 4

Measuring pH
Important:
with distilled water to remove all traces of storage solution, process media, or previous test solution.
1.
Connect the pH electrode to the meter (BNC connection at bottom of meter).
2.
Optionally connect the temperature probe (Extech model 850188 only) to the jack at the
bottom of the meter. This temperature probe is used for automatic temperature
compensation (ATC). Manual temperature compensation is possible as explained below.
3.
Turn the meter on using the POWER/ESC button.
4.
Press and hold the FUNCTION button to select pH units if necessary. The unit of measure
appears on the LCD (pH).
5.
To change the solution temperature units (
section of this guide.
6.
Rinse the pH electrode and temperature probe with distilled water.
7.
Place the electrode and temperature probe (if ATC is to be used) in the solution. Allow 30
seconds for the electrode and ATC probe to reach thermal equilibrium with the buffer
solution. Refer to the Temperature Compensation section for more information on
Automatic and Manual Temperature Compensation.
8.
After the measurement stabilizes, view the pH reading and temperature solution
temperature on the display.
9.
When the test is complete rinse the electrode and probe with distilled water.
10.
Store electrodes and probes when not in use according to manufacturer's requirements.
Measuring mV (ORP: Oxidation Reduction Potential)
Important:
with distilled water to remove all traces of storage solution, process media, or previous test solution.
1.
Connect the ORP electrode to the meter (BNC connection at bottom of meter).
2.
Optionally connect the temperature probe (Extech model 850188 only) to the jack at the
bottom of the meter. This temperature probe is used for automatic temperature
compensation (ATC) purposes. Manual compensation is possible as explained below.
3.
Turn the meter on using the POWER/ESC button.
4.
Press and hold the FUNCTION button to select mV units if necessary. The unit of measure
appears on the LCD (mV or pH).
5.
To change the solution temperature units (
section of this guide.
6.
Rinse the ORP electrode and ATC probe (if being used) with distilled or deionized water.
7.
Place the electrode and ATC probe (if being used) in the solution. Allow 30 seconds for the
ORP electrode and ATC probe to reach thermal equilibrium with the buffer solution. Refer
to the Temperature Compensation section for more information on Automatic and Manual
Temperature Compensation.
8.
After the measurement stabilizes, view the ORP reading in mV on the main display.
9.
When the test is complete rinse the electrode and probe with distilled water.
10.
Store electrodes and probes when not in use according to manufacturer's requirements.
800.561.8187
Electrodes and temperature probes should always be rinsed before and between samples
Electrodes and temperature probes should always be rinsed before and between samples
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o o
C / F) refer to the Temperature Units Selection
o o
C / F) refer to the Temperature Units Selection
4
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PH210-en-GB_v1.3 11/14