Model SX725 Operation Manual
Thanks for buying and using the model SX725 pH/mV/DO Meter (the following called “meter" in short).
Before using this meter, please read the operation manual carefully in order to help use and maintain it correctly. On the basis of improving instrument of performance constantly, we reserve the right of changing the content of this manual and accessories in case of not notifying in advance.
This meter is a perfect combination with the most advanced electronic technology, sensor technology and software design. The meter can measure the parameters of pH, mV, DO and temperature for high accuracy solution. It is the best portable water analysis meter with the highest performance and the lowest cost. It is suitable for the trade such as the mining industry, power plant, water treatment projects and environmental protection, etc., especially has more extensive application in the field and spot test.
Builtin microprocessor chip, beautiful appearance, multifunctional and easy to use, this meter has the following prominent features:
1.1.Double parameters meter, with pH and DO electrode, also with calibration solution and special carrying case, easy to use.
1.2. Builtin microprocessor chip, with the inligent functions of automatic calibration, automatic temperature compensation, data storage, function setting and automatic selfdiagnose, auto power off and low voltage display etc.
1.3.Adopts digital filter and step slipping technology to inligently improve meters response speed and result accuracy.
1.4.It automatically recognizes 13 kinds of pH standard buffer solution. User can choose anyone from three series of buffer solutions: Europe & U.S.A. series, NIST series and China series.
1.5.Purified water and ammonia added purified water pH measuring mode can be set up, for this two special pH measuring modes, besides the general slope compensation, also added function of nonlinearity temperature compensation for pH values of solution to make measurement more accurate, especially suitable for use in the fields of electric power and petrochemical etc.
1.6. Equipped with new type of DO electrode with temperature and salinity sensor which makes DO measuring mode has auto temperature compensation, auto salinity compensation and manual barometric pressure compensation. Its easy to use and accurate to measure.
1.7. Polarogram type DO electrode has special electrode calibration cap. Only needs 3 to 5 minutes for electrode polarization. Electrode adopts combination diaphragm cap which very convenient to use. Each DO electrode equips with three spare diaphragms caps.
1.8. Meters circuit board adopts SMT filmcovering technology to improve meter’ production reliability.
1.9. Meter has the blue back light LCD display monitor.
1.10. Dustproof and waterproof meter meets IP57 rating.