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UV-VIS Spectrophotometers
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Main Features and Benefits
The M501 is a single beam scanning UV/Visible spectrophotometer with an on-board LCD display and keypad offering local control.
Main features include:
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Other features include:
The sealed and solvent-resistant tactile keypad has alpha-numeric entry for user file names and user entry of units
The M501 has a real-time clock for date and time stamping of results
Lamps may be turned off and the lamp usage may be monitored. The status of the lamps is always displayed on the screen
Full A4 print-outs of graphs and tables of results may be obtained using popular inexpensive printers such as an HP Deskjet
The Print-out button also allows the screen display to be printed at any time
Non-volatile memory provides storage for up to 30 methods / results. A method may be simply set up by selecting the tyides storage for up to 30 methods / results. A method may be simply set up by selecting the type of measurement and pressing the LOAD button
When a spectrophotometer arrives at the measurement wavelength, blanking is required, so the M501 performs this automatically
The M501 has a large sample compartment (225mm deep x 115mm wide x 120mm high) which can accommodate an 8-cell changer and 100mm pathlength cells. The optical height is 15mm above the cell base
The large synthetic covers allow the M501 to run cool and this minimises warm-up effects
The absence of flat external surfaces or cooling vents discourages spillage onto or into the instrument
The rugged steel base and enclosed monochromator assembly ensure the calibration is stable for years of instrument use
A wide range of accessories are available including a peristaltic sipper system, an 8 position automatic cell changer and a number of Windows based consumables packages
| Display | 1/4 VGA - 320 x 240 pixels, backlit LCD |
| Light Sources | Tungsten-Halogen and Deuterium |
| Monochromator | Littrow type with 1200 lines/mm grating |
| Detector | Silicon Photodiode |
| Wavelength Range | 190 - 1100nm |
| Wavelength Accuracy | ± 1nm |
| Wavelength Resolution | 0.1nm |
| Wavelength Repeatability | ± 0.05nm |
| Bandpass | 4nm (2nm option available) |
| Photometric Range | -0.7 to 3.0A, 0 to 200%T and 0 to 9999 Conc |
| Photometric Accuracy | Better than 1% @ 0.5A, 1A and 2A |
| Photometric Noise | Less than 0.001A @ 500nm, 0A |
| Zero Drift | Less than 0.002A per hour after warm up |
| Baseline Flatness | ± 0.002A |
| Stray Light (ASTM) | Less than 0.15%T @ 220nm and 340nm |
| Printer Interface | Centronic parallel - for example HP Deskjet |
| Computer Interface | Bi-directional RS232C for PC control |
| Power Requirements | 110/120V AC, 220/230V AC, 50/60Hz, 110VA |
| Dimensions | (W) 550mm x (D) 420mm x (H) 260mm |
| Weight | 18 Kgs |
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A detailed specification sheet is now available in PDF format 
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A detailed specification sheet is now available in PDF format 