For use in applications examining pharmaceutical and biochemical samples, clinical and biological fluids, industrial processes and environmental testing.
- Dual channel emission flame photometer with Na, K, Li and Ca filters and additionally offering simultaneous Ca with K or Na results, Li internal standard referencing for enhanced accuracy, microprocessor control and monitoring of measurements, continuous or peak mode operation, and built-in RS232 port for result output.
- Digital readout with moveable decimal point
- Automatic air regulation
- Auto-ignition of flame
- Gas cut-off safety feature
- Integral ‘fail-safe’ flame monitoring
- Recorder output
| Model | 425 | |
| Sensitivity | Minimum concentrations producing a display reading of 100 scale units: Na: 0.5ppm. K: 0.5ppm, Li: 2ppm, Ca: 5ppm | |
| Detection limts | Na, K <0.02ppm at 2 x standard deviation | |
| Specificity | <0.5% to reading from interferent of Na, K, Li equal to the concentration of element under test | |
| Drift | % | <1 |
| Reproducibility | % | <0.5 (Peak ref. mode) |
| Display channels | 2 (LED) | |
| Result display | Auto peak | |
| Result storage | Yes | |
| Outputs | Adjustable analogue and RS232 | |
| Dimensions | mm | 390 x 345 x 510 |
| Weight | kg | 10 |
| Services required | ||
| Electrical | 198-264V 50/60Hz | |
| Air | Moisture and oil free 6 litres/minute at 1kg/cm2 | |
| Gas | High grade propane, butane or propane/butane mixture (for Ca tests only). Fuel should be free from heavy hydrocarbon deposits and regulated to 30 p.s.i. at the cylinder. |
With Na, K, Ca and Li filters, fuel and air connection, 1000ppm standard solutions for Na, K, Ca and Li, software and instructions. Requires, but does not include, an air compressor of the correct type and gas regulator. For 198-264V 50/60Hz single phase supplies.
Note: cannot be operated using natural gas.