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OPERATING INSTRUCTIONS
What’s in the case
The PHH-SD1 comes fully assembled with a 2 GB SD memory card and this user’s manual.
Optional accessories available from OMEGA include pH electrodes, a probe that enables
automatic temperature compensation (ATC) of pH electrodes, an ORP electrode, pH 4 and pH 7
buffer solutions, and a 9VDC adapter for a 110V power supply. See the Optional Accessories
section of this manual for more details.
Figure 1 shows all of the controls and indicators on the front, back, top, bottom and right side of
the PHH-SD1. Familiarize yourself with the positions and functions of these controls, indicators
and connectors before moving on to the setup procedure.
1. The PHH-SD1’s controls and indicators
and other physical features
1-1 Liquid-crystal display
1-2 POWER button
1-3 HOLD/ESC button
1-4 REC/ENTER button
1-5
▲
button
1-6
▼
button
1-7 TIME button
1-8 LOGGER SET button
1-9 Kickstand
1-10 Battery compartment cover
1-11 Battery compartment cover screws
1-12 Tripod attachment nut
1-13 Socket for ATC temperature probe
1-14 Socket for pH electrode
1-15 Socket for 9VDC AC adapter
1-16 Reset button
1-17 RS232 output jack
1-18 SD card socket
2