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1
Brief Introduction
Thank you for purchasing the Apera Instruments SX811-PW Portable pH Meter kit. This device is an
outstanding combination of advanced electrical, sensor technology and software design. The meter is
equipped with LabSen 803 pH Electrode, designed for testing pH levels of purified water such as drinking
water, RO water, distilled water, deionized water and other low ion-concentration liquid in an accurate
and convenient manner. It also works well testing regular water solutions.
(for other applications, please refer to Section 11 to find the most suitable electrode)
1.1
Features
•
This microprocessor-based meter features automatic calibration, automatic temperature
compensation (ATC), menu set-up, calibration reminder, calibration date checking, automatic
powe-off and low-battery warning.
•
GLP data management
，
clock display, manual storage and automatic timing storage, USB port
and power outage data protection, your data is safe even with a dead battery.
•
Advanced digital processing technology improvs meter responding time and accuracy. 1-3 points
automatic calibration, calibration guide and self diagnose.
•
IP57 waterproof, operable under extreme conditons. Powered by 3 AA batteries or USB
connection to other power source. Solid and durable case
，
accessories are included.
1.2
Features of the LabSen 803 Glass pH Electrode
•
Proprietary pH sensor technology and materials from Switzerland
•
Unique LabSen cylindrical glass membrane, faster response rate, better repeatability in purified
water
•
Get stable pH readings in purified water or low ion-concentration solutions in 30 seconds on
average. Say goodbye to constant fluctuations
•
Patented pH/Temperature combination structure (Swiss Patent Nr.699927), increasing the
temperature respond time by 40% compared to conventional isolated built-in thermistor
•
Silver Ion Trap Reference System – On top of the Long-Life reference system, a silver ion trap is
added to prevent the junction being blocked by silver sulfide, having better stability and longer
service life.
