Calibration set Concal for ultrapure water applications

Complete, factory-calibrated conductivity measuring set with certificate for comparative measurement in ultrapure water applications up to 20 µS/cm (50.8 µS/inch)

Ultrapure water is used in sensitive areas of the pharmaceutical and foodstuffs industries and in process engineering. Verfication and calibration of process conductivity measurement is obligatory for these applications.

 

Since calibrationg solutions with very low conductivity are unstable, there is no standardisation for conductivities below 74 µS. With the ConCal system, Endress+Hauser are now offering a reference unit that permits the calibration of process measuring instruments by means of a certified comparsion measurement.
 
Areas of application
Calibration of quality-relevant process measurements in the ultrapure water range up to 20 µS/cm (50.8 µS/inch)
Checking of in-line measurements in the process, e.g. after inspections or interruptions in operation
Checking of  conductivity measuring equipment primarily in the pharmaceutical and food industrie
Checking and calibration for product quality assurance, e.g. in semiconductor production or other technically sensitiv areas
 
Benefits at a glance
Factory calibration traceable to SRM by NIST and DKD
Conforms to international standards: Procedure for factory calibration of ConCal system according to ASTM 5391-93
Practical flow assembly with adjusting and monitoring functions according to ASTM 5391
Bypass arrangement permits calibration without removal of flow sensors
 
The most important Technical data
Voltage supply: 230V 50 Hz / 115V 50 Hz
Material: PVDF
Connections:  
- Inlet G ½
- Outlet G ½
Adjustment of reference unit at 149 µS/cm (378.5 µS/inch):  
- Error limit of calibration solution 0,5 %
- Max. deviation of display range of reference unit conductivity instrument at 149 µS/cm (378.5 µS/inch): 0,2 %
Adjustment of ConCal at approx. 5 µS/cm (12.7 µS/inch):  
- Max. deviation of display range of reference unit conductivity instrument at 20 kΩ (5 µS/cm / 12.7 µS/inch) 0,6 %
- Max. deviation of display range of ConCal conductivity instrument at 20 kΩ (5µS/cm / 12.7 µS/inch) 0.6 % 
- Sum of all errors  Sum = 1.9 % 
Technische informatiie:  TI 163C/07
 
 
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