Description
Digital Flame Photometer – 381 Electronics India
Features
- Simple & Easy to Operate
- Narrow Band Interference Filters
- Accurate Na, K, Ca, & Li Determination
- Mixing Chamber Designed For Stable Flame
- Concentric Non-Corrosive Nebulizer
- Auto Ignition
Digital Flame Photometer – 381 is a simple & easy to operate instrument for determination of Sodium, Potassium, Calcium & Lithium. It is an ideal instrument for soil testing labs.
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.
Specifications
| Model | 381 |
| Range | Na: 0 – 100 ppm
K : 0 – 100 ppm Ca: 15 – 100 ppm Li: 10 – 100 ppm (Optional) |
| Sensitivity | Na: 5 ppm
K : 5 ppm Ca: 10 ppm Li: 10 ppm |
| Accuracy | + 2% upto 40 ppm, + 5% above 40 ppm |
| Measurement System |
One element at a time |
| Readout | 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.) |
| COMPRESSOR UNIT | |
| 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.) |
Note : Specifications are subject to change due to continuous improvements.
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