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pH meters

 

pH meters

What's pH ?

 

The pH, for definition, is the negative logarithm of  H+ ion concentration in a solution; mathematically speaking : pH =- log[H+]The values ran from 0 to 7 for acidity and from 7 to 14 for basicity. 

 

The pH measurement is important in every field of application like food industry, pharmaceutical, cosmetics, galvanic, etc. 

 

pHmeters are digital instruments used to measure the pH value in a product or an aqueous solution. 

 

The pH measurement chain consists of:

 

   -  an indicator with digital display

 

   -  pH sensor ( pH electrode )

 

   -  connection cable for pH electrode 

 

Since the pH measurement is influenced by temperature variation, to correct this type of alteration, mostly of pHmeters are completed with temperature probe to compensate the electrode's answer.  

 

pHmeters can be portables or bench-top instruments.

 

The mainly differences are in power supply and dimensions.

 

Portables are smaller and with battery power supply.

 

Bench-top ones have bigger display, useful to work in laboratory and often with arm stand

 

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pH 80+ DHS BASIC with STANDARD T DHS electrode 50001442

pH 80+ DHS kit BASIC with pH electrode XS STANDARD T BNC DHS, cable S7/BNC, temperature probe NT55, colored pH buffer solution pH 7 and pH 4, electrodes stand, soft keypad, power supply and accessories. Without stirrer.

PC 62 DHS COMPLETE with 201T +ATC and CELL 50003952

PC 62 DHS complete kit with pH electrode 201T with temperature sensor inside, conductivity cell 2301T with ATC cable lenght 1 mt, electrode holder, colored pH buffer solution pH7 and pH4, standard calibration solution 1413 µS and 12,88 mS and accessories.

pH 80+ DHS STIRRER With Electrode 50001402

pH 80+ DHS kit STIRRER with pH electrode XS STANDARD, temperature probe NT55, S7/BNC 1 m cable, colored pH buffer solution pH 7 and pH 4, soft keypad, electrodes arm, power supply and accessories. With stirrer.

pH 8+ DHS STIRRER with STANDARD T DHS electrode 50001252

pH 8+ DHS kit STIRRER with pH electrode XS STANDARD T BNC DHS. Cable S7/BNC, temperature probe NT55, colored pH buffer solution pH 7 and pH 4, electrode holder and accessories. With stirrer.