Electro-Chemical Devices (ECD) H10 - Manual (Page 6)

6
Installing the Batteries
The Model H10 pH meter is packaged with 4 “AAA” alkaline
batteries required for operation. To insert the batteries into the
meter, follow the procedure outlined below.
1. Use a screw driver to remove the two screw and battery
cover to expose the battery compartment. (Figure 1)
2. Note the polarity and insert the batteries into the battery
compartment correctly.
3. Replace the battery cover and make sure to secure the
two screws for the water-tight feature.
[Note: Press the “On/Off” key to turn the unit on. If the unit is
running, then you can press the”On/Off “key to turn the unit off.
The unit will automatically turn off after 20 minutes of no key
activity.]
Figure 1
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D. Temperature Measure
The pH6810 can measure temperature independently with the
ATC/temp probe without using the pH electrode. Place the
ATC/temp probe in the sample. The unit will display the measured
temperature.
E. mV Measurements
Measurement in the mV‐AUTOLOCK mode
1. Connect the optional combination ORP electrode to the
BNC connector of the unit.
2. Press “Mode” key until “mV” icon and “AUTO” icon lit up.
3. Rinse electrode with distilled water and immerse it in
sample to be measured.
4. Press the “Mea.” key. The “WAIT” icon will start flashing.
The unit is waiting for a stable reading. The display will
track the mV value as sensed by the ORP electrode
5. When the “WAIT” icon disappears, the reading is then
“HOLD” and will not respond to further changes from the
sample. The mV value is the sample reading.
[Note: For samples that are inherently unstable, the unit
will not AUTOLOCK. In this case, use the pH NON‐
AUTOLOCK mode for measurements.]
Measurement in the mV NON‐AUTOLOCK mode
1. Connect the optional combination ORP electrode to the
BNC connector of the unit.
2. Press “Mode” key until “mV” icon light up.
3. Rinse electrode with distilled water and immerse it in
sample to be measured.
4. Allow sufficient time for the display to stabilize. The
instrument will display the mV value of the sample.