Hardness (Ca2+)

• Power plants
• Cooling water
• Water steam cycle
• Boiler feedwater
• Reversed osmosis
• Ion exchangers
• Ultrapure water
• Drinking water

 The JAL-Z colorimeter is a compact analytical instrumentation for online analysis and process monitoring. The colorimeter is based on a color-developing chemical reaction carried out inside the analyzer's glass cell. The sample, coming from an external reservoir or process stream is autonomously grabbed by the instrument and mixed with the appropriate reagents to make the reaction happen. The analyzer uses an LED light source and a photodiode to photometrically measure the developed color intensity (absorbance). The absorbance is proportional to the concentration of the target chemical species (analite). 

•  Low reagents consumption and analytical reliability thanks to our custom designed miniature peristaltic pumps
• Dual compartment design to guarantee a complete separation between the electronics and the hydraulic section
• Color touchscreen to show the last measured value clearly, and to set all the options and settings via an user friendly interface
• Datalogger function with data history in graphical form and USB download
• Automatic calibration, validation and cleaning to reduce down time and operator intervention, their frequency can be freely set by the user
• Fully integrable in industrial automation via the analog outputs (2 x 4-20 mA channels), digital output (2 relays + ModbusRTU) and digital input (voltage free contact)

   The photometric determination is based on the reaction of calcium ions with an o-cresol phthalein complex one solution, which yields a violet colored complex. The intensity of the color is proportional to the calcium concentration in the sample. The absorbance of the complex is measured at 572 nm. 

Measured parameter:     Hardness as CaCO3    

Range :

(Ø 16 mm)             3 ppm

(with dilution)    20 - 5000 ppm 

 Reproducibility*

(Ø 26 mm)            ± 5 ppb / ± 5% 

(Ø 16 mm)            ± 10 ppb / ± 5% 

* if two values take whichever is greater

Wavelength :   572 nm  

Demineralized water : Not required 

Number of reagents: 2

Min. analysis time : 7 minutes

Default analysis time : 15 minutes

Reagent consumption**

(Ø 26 mm)     2.6 L

(Ø 16 mm)     2 L 

** per month, at the default analysis frequency.