391 & 392 Dual Channel Flame Photometer

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Location Worldwide

Digital Clinical Flame Photometer Model – 391 is a dual channel flame photometer used for simultaneous observation of Sodium, Potassium in blood serum (plasma), Urine & other type of biological fluids.


The instruments are supplied in two units viz. Main Unit and Compressor Unit. The Main Unit comprises of digital displays, detector, filters and nebulizer. The compressor unit supplies the compressed air to the main unit.


Air at a given pressure is passed into the atomiser. The suction produced by it, draws the sample solution into the nebulizer and is sprayed as fine mist into the flame. The light emitted by the element at the characteristic wavelength is isolated by the narrow band interference filters, which then falls on to the silicon photodiode. After signal conditioning of the photodiode output, it is sent to digital converter and the results are displayed directly in ppm/meq units. The narrow band interference filters are mounted on a rotating disc fitted within the Main Unit. Appropriate filter can be selected by rotating this disc with the thumb. The oil free compressor with regulator maintains a stable airflow.



  • Simple & Easy to Operate
  • Narrow Band Interference Filters
  • Accurate Na, K, Ca, & Li Determination
  • Dual Channel For Simultaneous Observation of Na & K with Single Aspiration (Model 391)
  • Mixing Chamber Designed For Stable Flame
  • Concentric Non-Corrosive Nebulizer
  • Auto Ignition


Model 391
  Serum Urine
Range Na: 0 – 200 meq/l
K : 0 – 10 meq/l

Li: 0 – 2 meq/l (Optional)
Na: 0 – 200 meq/l
K : 0 – 100 meq/l
Ca: 0 – 10 meq/l (Optional)
Accuracy + 2% upto 100 meq
+ 5% above 100 meq
Two elements at a Time
Readout Dual 2½ Digit, 7-Segment LED
Ignition System In-built electronic Ignition by press of switch
Repeatability + 2 Counts
Detector Silicon Photodiode
Filters Narrow band interference glass filters
Nebulizer Black backelite, axial flow type
Flame System LPG & dry oil free air
Warm-Up Time 10 minutes
Power 230 V + 10% AC, 50 Hz
Dimensions 375 x 245 x 220 mm (L x B x H) (Approx.)
Weight 7.5 Kg (Approx.)
Air Supply By oil free mini compressor unit with pressure regulator
Combustion Gas LPG controlled by precision regulator
Power 230 V + 10% AC, 50 Hz
Dimensions 290 x 255 x 210 mm (L x B x H) (Approx.)
Weight 8 Kg (Approx.)

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