Battery Installation/Replacement; Operating Instructions - Extech Instruments 341350A User Manual

OPERATING INSTRUCTIONS

Battery Installation/Replacement

Open the battery cover by inserting a small coin into the latch slot and pressing downward.
The cover will release in the direction of the arrow. Install the new battery and replace the
cover.
pH Measurements
1. Press the POWER button to turn the meter on. (the meter will cycle through a self
check)
2. Press the MODE/CAL button until the
3. Press the UNIT/SET button to select ºC or ºF.
4. Connect the pH electrode to the side pH BNC connector.
5. Adjust the ▲▼buttons to the temperature of the solution (or use the external
temperature probe).
6. If required, calibrate the electrode. (see pH Calibration)
7. Place the electrode in the sample solution and read the pH value on the display.
8. When all measurements have been taken, unplug the electrode and rinse in distilled
water, shake and store in the wetting cap or a pH 4 buffer solution.
Conductivity/TDS/Salt Measurements
1. Press the POWER button to turn the meter on.
2. Press the MODE/CAL button until the COND,
3. Connect the conductivity electrode to the side conductivity connector.
4. If required, calibrate the electrode. (see Conductivity Calibration)
5. Place the electrode in the sample solution and read the value on the display.
6. When finished, unplug the electrode and rinse in distilled water.
ORP (mV) Measurements
1. Press the POWER button to turn the meter on.
2. Press the MODE/CAL button until the
3. Connect the ORP electrode to the side ORP BNC connector.
4. Place the electrode in the sample solution and read the mV value on the display.
5. When all measurements have been taken, unplug the electrode and rinse in distilled
water.
PH icon is on.
SALT or TDS icon is on.
ORP icon is on.
341350A V1.1 1/09
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