INTRODUCTION
Thank you for purchasing PHH-SD1 pH Meter with Datalogging SD Card. Please read this
user’s manual carefully and thoroughly before using the instrument.
The PHH-SD1 is a general-purpose handheld instrument suitable for measuring the pH and
oxidation-reduction potential (ORP) of a solution. Using optional probes with a BNC connector,
the meter can measure pH from 0 to 14 and ORP from -1999 mV to +1999 mV. The meter also
accepts an optional automatic temperature compensation (ATC) probe that configures the pH
electrode to measure solutions whose temperature is between 32 and 150
o
F (0 and 65
o
C). For
measuring the pH of solutions at temperatures between 32 and 212
o
F (0 and 100
o
C), the
temperature compensation can be set manually. pH electrodes must be calibrated for pH 4, pH 7
and pH 10 using buffer solutions.
Among the applications and environments suitable for the PHH-SD1 are water conditioning,
wastewater monitoring, beverage production, aquaculture (fish farming), aquariums, pulp and
paper processing, electroplating, and photography.
The PHH-SD1 has the performance and features needed to satisfy the most demanding aspects of
the above applications. A front-panel pushbutton enables rapid switching between the two
measurement modes. Measurement accuracies are ± (0.02 pH units + 2 digits) for pH readings
and ± (0.5% of the r 2 digits) for ORP readings.
Because it is microprocessor-based, the PHH-SD1 can make full use of the portability, reliability
and large storage capacities that SD memory cards offer. Measurements can be made
automatically at any sampling rate between one second and nine hours. After time-stamping and
storing the measurements on an SD card plugged into the instrument (a process called
datalogging), the user can remove the card and plug it into to a laptop or desktop computer either
directly or via a USB card reader. The data logs are stored on the card as files with the .xls
extension, which can be opened by Microsoft’s Excel application.
The PHH-SD1 has a backlit 2-1/2 inch diagonal display and is powered by six AA Alkaline
batteries or an optional 9-VDC AC adapter.
KEY FEATURES
•
Measures pH and ORP using optional electrodes
•
Measured parameter can be changed by pressing front-panel button
•
Optional ATC temperature probe automatically calibrates pH electrode to pH 4, pH and
pH 10
•
Displays maximum and minimum readings
•
Performs real-time automatic datalogging at sampling time settable from 1 second to 9
hours
•
Also supports manual logging and changing of card storage location
•
Outputs Excel-compatible data logs
•
Accepts SD memory cards of up to 16 GB capacity
•
Big (2.5-inch diagonal) front-panel green backlit LCD is easy to read
•
Auto power off function
•
Powered by six AA batteries or optional 9V AC/DC adapter
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