POLYMETRON 9523 cation conductivity analyzer
A complete water quality detection system that is easy to integrate and easy to operate according to power plant user research and development Hach Company can provide a variety of products for users to choose, in order to match these products with each other, forming a flexible solution to meet your unique needs. The comprehensive method adopted by Hash can save you time in all aspects of design, installation, training, maintenance and operation.
Since the pH is proportional to the logarithm of the hydrogen ion concentration, it is difficult to measure accurately if the standard potential method (glass electrode + reference electrode) is used to measure pH under low conductivity conditions. This requires the instrument to be calibrated frequently to compensate for changes that occur during the measurement (liquid junction potential, glass film loss, etc.).
In contrast, conductivity measurement in this condition is very reliable and accurate, because conductivity is directly proportional to the concentration of impurities and requires little maintenance.
Therefore, through the relationship between the pH and conductivity of the sample, the pH can be accurately measured by measuring the conductivity.
The measurement principle is to convert the salt into acid form by flowing the sample through the cationic resin, and measure the conductivity in the original conditioning cell through the relationship between the conductivity of the acid and its corresponding salt (about 3 times).
However, if the sample contains impurities (usually in the form of salt), this calculation method cannot be used.
-Save design time
The same product platform means you spend less time looking for design files or specifications. It also allows you to create and reuse design templates. Complies with ISO 7888 and ASTM D 1125 standards.
-Easy to install
The interchangeable components, the universal operation interface, and the support of the same hash technical team can make the installation faster and easier.
A single platform can reduce the product training time to a minimum, so as to master the use of the new system faster.
-Simplified maintenance and operation
The use of common menu guidelines reduces the specificity; it provides step-by-step operation guidance for the maintenance and calibration process. The system has low maintenance and is equipped with long-lasting resin, which gives a visible indication when it is exhausted.
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|Cell constant||k 0.01 cm-1|
|Measuring range||Conductivity: 0.01 ~ 200 µS / cm|
|Measuring range 2||Resistivity: 5 ~ 100000 kΩ x cm|
|Accuracy||± 1% of displayed value|
|pH range||7 ~ 10 (ammonia)|
|7 ~ 10.7 (sodium hydroxide)|
|range of working temperature||-20 ~ 60 ° C (0 ~ 95% RH, non-condensing)|
|Sampling entrance||4 x 6 mm Diameter tube|
|Sampling outlet||12 x 17 mm Diameter tube|
|Temperature compensation||None, automatic, manual|
|Temperature Sensor||PT 100，Accuracy： < ± 0.2°C|
|Power requirements (voltage)||100 - 240 V AC, 24 V DC|
|Power requirements (Hz)||50 - 60 Hz|
|Relay||4 SPDT relays (Form C), 1200W, 5A|
|Analog output||Two 0 / 4-20mA isolated current outputs (5 optional expansion modules), maximum impedance 550 Ω, accuracy: +/- 0.1% of FS (20mA) at 25 ° C, -20 ° C ~ 60 ° C The range is +/- 0.5% of FS.|
|Analog output function mode||Linear, logarithmic, bilinear, PID|
|Digital communication||A total of two 4-20 mA outputs (also MODBUS RS232 / RS485, HART, PROFIBUS DPV1, additional 3 4-20mA outputs are available)|
|certificate||Compatible with CE certification (conduction and radiation)|
|-CISPR 11 (Restriction Type A)|
|-EMC Immunity EN 61326-1 (industrial restrictions)|
|CAN/CSA C22.2 No. 61010-1|
|cETLus safety signs:|
|- General Locations per ANSI/UL 61010-1 & CAN/CSA C22.2. No. 61010-1|
|Protection level||NEMA 4X/IP66|
|Flow rate||83 ~ 333 mL/min（5 ~ 20 L/hr）|