The M550 is a high performance true double beam spectrophotometer with parallel sample and reference beams with new precision holders for sample and reference cuvettes
Two silicon photodiodes are used for measuring the two beams simultaneously for optimising measurement accuracy and stability. The reference beam is especially useful for measuring samples where the reference changes with time.
The M550 uses a very easy-to-replace tungsten-halogen lamp, and a pre-aligned long-life Hamamatsu deuterium lamp.
The specification is as expected from a top-of-the-range instrument designed for research as well as routine use.
| Display | 1/4 VGA 320x240pixels backlit LCD |
| Light sources | Tungsten-Halogen and Deuterium |
| Monochromator | Littrow type with 1200 lines/mm grating |
| Scan Speed | Up to 2500nm/min (Return 3000nm/min) |
| Detectors | Silicon Photodiodes |
| Wavelength Range | 190 - 1100nm |
| Wavelength Accuracy | ± 0.3nm |
| Wavelength Resolution | 0.1nm |
| Wavelength Repeatability | ± 0.05nm |
| Noise | < 0.0001A @ 500nm 0A |
| Zero Drift | < 0.001A per hour after warm-up |
| Baseline Flatness | ± 0.002A |
| Bandpass | 1.8nm |
| Stray Light (A.S.T.M.) | <0.05%T @ 220nm and 340nm |
| Photometric Accuracy | Better than ± 0.005A @ 1A |
| Photometric Range | 0.3 to 3A, 0 to 200%T, 0 to 9999 Conc |
| Printer Interface | Parallel for A4 HP and Epson printers |
| Computer Interface | Bi-directional RS232C for PC control |
| Power Requirements | 110/120V, 220/230V, 50/60 Hz, 110VA |
| Dimensions | 630 x 410 x 280mm |
| Weight | 24kg |
User Interface
The user interface is almost the same as that of the popular M501 Single Beam Spectrophotometer and includes Basic Mode (Abs, %T, Conc), Quantitative (concentration calibration curves), Wavelength Scanning, Kinetics (including timedrive), DNA/Protein, Multiwavelength, and Performance Validation. The M550 stores up to 50 methods/results.
In Basic Mode, the result is continuously displayed (no need to “press to read”)
PC Control
The M550 has an RS232C output for the transfer of results to a PC and for PC control of the M550. Comprehensive Camspec Application Software is available, together with small PC programs dedicated to specialist tasks.
Accessories
Click here to see our extensive range of sample compartment accessories (which can also be used with the M501) is already available.
Pharmaceutical Analysis
The M550 is European Pharmacopoeia 5.2 compliant. It passes the Potassium Chloride stray light test, the Toluene in Hexane resolution test, the Holmium Perchlorate solution wavelength test and the Potassium Dichromate absorbance test.
The M550 may be controlled by Camspec Panorama software which is 21 CFR Part 11 compliant. This means that it can be used for pharmaceutical analysis requiring FDA (Food and Drug Administration) approval.
