Apera Instruments PH850, User Manual, Page: 3 / 20

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1 Introduction
Thank you for purchasing PH850 portable pH meter.
This product is a great combination of advanced electronics technology, sensor technology, and
software design, made for general water solution applications such as water treatment, environmental
monitoring, pools and spas, hydroponics, aquaculture, education, beverage making, cooling tower, etc.,
especially ideal for field use. In order to use and maintain the meter properly, please read the manual
carefully before use.
1.1 Measurement Parameters
Measurement
parameters
PH850
pH/mV
!"
Conductivity/TDS
"
Temperature
!"
1.2 Basic Features
●
The microprocessor-based portable meter features automatic
calibration, automatic temperature compensation, function setup,
self-diagnostics, automatic power-off and low voltage display.
●
The meter’s digital filter improves measurement speed and accuracy. There is a stable reading
indication on the display.
●
The package includes a portable case, a meter, electrodes, standard solutions and all accessories,
which is convenient to use in field.
●
The meter is dust proof and waterproof, meeting the IP57 rating.
1.3 pH Measurement Features
●
1-3 points automatic calibration, the meter provides calibration guide and automatic checking
function.
●
The meter can recognize pH standard buffer solutions automatically. USA series and NIST series
buffer solutions can be selected.
● The meter provides three types of reading stability criteria.