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Flame photometer FP8500

Flame photometer for process FP8500

Process version

The FP8500 combines the characteristics of the FP8400 with an automatic calibration to realise a 24 hour fully automated measurement operation; measuring times between 1 second and several minutes are possible. For data transmission, a variety of interfaces are available. With the models of the FP8000 series, A.KRÜSS Optronic presents to this day unique measuring devices for the simultaneous measurement of the elements Na, K, Ca and Li. Five measuring channels are available for this, which can be individually configured. Thanks to proven measuring methods and modern device electronics, our flame photometers achieve high-precision and reproducible measurement results and are a simple and particularly cost-effective alternative to analysis techniques such as ICP or AAS.

  • Reliable, simultaneous measurement of up to five alkaline and alkaline earth elements
  • Remote control of several devices via central process computer
  • Suitable for 24-hour operation
  • Very high precision
  • Maximum operational safety through intelligent security mechanisms
  • User administration with two authorization levels
  • Full traceability of the measurement results
  • Extensive interfaces and convenient data transfer
  • Compliance with international standards such as GMP / GLP and 21 CFR Part 11

Typical applications

  • Process analysis
  • Process monitoring
  • Online measurement
  • Automated continuous measurement

An overview of typical applications with the flame photometer FP8000 series can be found in our campus article on flame photometer applications.

Samples and substances often analyzed with a flame photometer

  • Measuring potassium and sodium in salt
  • Measurement of sodium, potassium and calcium in various food samples
  • Measurement of sodium, potassium and calcium in fruits and vegetable juices
  • High-purity water
  • Measurement of sodium, potassium and calcium in pharmaceutical reagents and infusion solutions (Ringer’s solution, NaCl solution)
  • Wastewater control by determination of potassium, sodium and magnesium content
  • Concentration determinations of sodium and potassium in fertilizer production
  • Measurement of sodium in glassmaking
  • Review of sodium, potassium or calcium levels in cement production

Model specifications

FP8500 Na K Li Ca
MEASURING RANGE 0.01-4500 ppm 
0.0004-200 mmol/l
0.01-4500 ppm 
0.0003-110 mmol/l
0.01-4500 ppm 
0.0014-600mmol/l
0.50-4500 ppm 
0.0125-110 mmol/l
DETECTION LIMIT 0.01 ppm 
0.0004 mmol/l
0.01 ppm 
0.0003 mmol/l
0.01 ppm 
0.0014 mmol/l
0.03 ppm 
0.0075 mmol/l
PRECISION 0.2 % at 40 ppm 
0.2 % at 1,74 mmol/l
0.2 % at 40 ppm 
0.2 % at 1,03 mmol/l
0.2 % at 40 ppm 
0.2 % at 5.71 mmol/l
0.2 % at 40 ppm 
0.2 % at 1.00 mmol/l
ACCURACY 1 % at 40 ppm 
1 % at 1.74 mmol/l
1 % bei 40 ppm 
1 % at 1.03 mmol/l
1 % at 40 ppm 
1 % at 5.71 mmol/l
1 % at 40 ppm 
1 % at 1.00 mmol/l
CALIBRATION Linear with 2 standards 
Non linear with 6-8 standards, 
cubic approximation
DRIFT 1% in 60 min
REFERENCE Lithium guide line with 35 mg/l or 5 mmol/l
SAMPLE VOLUME 2,5 ml
COMBUSTION GAS Propane, Butane or LPG: Recommended for alkaline elements 
Acetylene for flame photometry: Recommended for alkaline earth elements
DISPLAY TFT-Display with integrated 8,4“ TFT touchscreen, 800×600 Pixel
INTERFACES 2 x USB 
1 x Ethernet 
1 x RS-232 for printer 
Upgrade 4-20 mA analog, passive current interface
EQUIPMENT Base unit + External valve box with control unit (Online Measurement)
ACCESSORIES 24 character plain paper printer 
Pressure reducing station with filter unit 
Various standards and system solutions 
Spare parts and accessories directly from the manufacturer
UPGRADEABILITY Retrofit kits to other models available

Technical data flame photometers (PDF, 128 KB)

Digital refractometers with peltier temperature control

Resources & Downloads

Process Flame photometer  FP8400 Enquiry

For more information or to arrange a call from one of the Cea Analytical Team, please complete the contact form below.  If your enquiry is urgent, please call us on 1300 552 725.

Process Flame photometer Enquiry

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