Sherwood Scientific Photometer Flame M420 Clinical, 1 Item SHEW47542000

Sherwood Model 420 C Flame Photometer
The Sherwood Model 420C Flame Photometer was developed from the Single Channel Model 410 Flame Photometer, with the objective of improving productivity and analytical performance, when measuring Sodium and Potassium. 
The 420C (475 42 000) is delivered as standard with a mixed calibration concentrate containing 140.0, 5.00 and 1.50 mmol/l of Na, K and Li.
Dual Channel operation, allows both Sodium and Potassium to be calibrated, measured and displayed simultaneously. The Model 420 Flame Photometer retains many of the Model 410’s attributes: ease of use, ease of maintenance and stable flame design and is enhanced with auto flame optimisation, internal standard referencing and on-board firmware to achieve significant improvement in sample throughput and precision. The time taken to set up and calibrate the instrument is much reduced; achieved by automatic ignition and optimisation of the flame conditions. The analytical performance is improved using a Lithium Internal Reference signal which compensates for fluctuation in flame conditions. The internal reference feature (Reference Mode) can be turned off if required. Readings on both channels are linear over the working range of the Model 420 Flame Photometer. There are several monitoring and control functions included in the firmware; thus, measurements can only be made after blanking and calibration.
The Model 420 Flame Photometer can operate in Continuous or Peak mode. In Continuous mode the instrument displays the current value on each channel and through the analogue ports. An instantaneous reading can be printed at any time. In Peak mode the Model 420 Flame Photometer automatically detects a stable reading, following sample introduction, for transfer to a printer or computer and the display is frozen until the next sample is introduced.
The Model 420 Flame Photometer has RS232 output for printer or computer connection and is compatible for standalone use with Sherwood’s Model 860 Autosampler; providing unattended sample analysis. The system may be used with the Model 805 Continuous Flow Diluter, again in-conjunction with or without the Model 860 Autosampler.