The XD 7500 is a state-of-the-art spectrophotometer equipped UV / VIS reference beam technology. Due to many technical subtleties, such as The automatic test recognition via barcode or over 150 pre-programmed Lovibond® methods makes it ideal for routine or spectral analysis.
Contents:
Key Features and Benefits:
| Optics | Grid monochromator with reference beam and beam splitter after exit slit |
| Measurement | Concentration, single and multi-wavelength measurement of absorbance and % transmission, kinetics, spectra |
| Wavelength Range | 190 - 1100 nm?nm) |
| Wavelength Resolution | 1 nm |
| Wavelength Accuracy | ± 1 nm on all Holmium peaks |
| Wavelength Reproducibility | better than 0,5 nm |
| Spectral Scope | 4 nm |
| Photometric Range | -3.3 - +3.3 Abs |
| Photometric Resolution | Absorption: 0.001 ; Transmission: 0.1 % |
| Photometric Accuracy | 0.003 Abs below 0.6 Abs ; 0.5 % from 0.6 to 2.0 Abs |
| Photometric Reproducability | 0.003 Abs below 0.6 Abs ; 0.5 % from 0.6 to 2.0 Abs |
| Photometric Linearity | < 1 % up to 2.0 Abs between 340 to 900 nm |
| Scan Speed | 700 - 2000 nm/min. |
| Stray Light | < 0.05 % Transmission at 340 and 408 nm |
| Drift | < 0.005 Abs per hour after 15 minutes heat up time |
| Operation | Membrane Keyboard |
| Display | 7“ high contrast colour graphic-display |
| Suitable Vials | Rectangular Cuvettes 10 mm Rectangular Cuvettes 20 mm Rectangular Cuvettes 50 mm Round Cuvettes 13 mm Round Cuvettes 16 mm Round Cuvettes 24 mm |
| Automatic Cuvette Recognition | Round cuvettes: 13, 16 and 24 mm ; Rectangular cuvettes: 10, 20 and 50mm |
| Test Recognition | via internal barcode reader |
| Interfaces | Ethernet USB B USB A for External Memory Keypad Barcode-Scanner PCL Compatible Printer |
| Auto-Check | Self-test at each switch-on: test of memory, processor, internal interface, filter lamp and additional calibration of each wavelength |
| LIMS Compatibility | ASCII, .csv-files |
| Internal Storage | approx. 5000 data sets (method, user ID, date, result), autostorage function / manual storage function |
| Security | Password protection possible: 3 different user levels (guest, user, admin) |
| Power Drain | 100 - 240 V, 50/60 Hz |
| Power Supply | Buffer batteries (4 x AA), power supply unit with cable |
| Auto – OFF | Yes |
| Portability | Benchtop |
| Environmental Conditions | +10 °C to 35 °C (41 °F to 95 °F), ≤ 75 % average humidity within one year 95 %, max. 30 days/year, 85 % all other days |
| Stock Conditions | -25 °C to +65 °C (-13 °F to 268 °F) |
| Compliance | CE |
| Protection Class | IP 30 |
| IP Protection Class | EN 60529 |
| Interference Emission | Class B |
| Interference Immunity | IEC 61000-4-3 |
| Tolerance Extension | 0.008 E |
| Meter Safety | EC Directive 2014/35/EC EN 61010-1:2010 |
| Languages User Interface | German, English, French, Spanish, Italian, Portuguese, Polish, Indonesian, Russian, Chinese, Japanese, Dutch, Swedish, Norwegian, Czech, Romanian, Macedonian, Slovenian, Hungarian, Turkish, Korean, Vietnamese, Thai, Serbian, Malaysian, Danish, Bulgarian |
| Languages Quick Start Guide | German, English, French, Spanish, Italian, Portuguese, Polish, Indonesian, Russian, Chinese, Japanese, Dutch, Swedish, Norwegian, Czech, Romanian, Macedonian, Slovenian, Hungarian, Turkish, Korean, Vietnamese, Thai, Serbian, Malaysian, Danish, Bulgarian |
| Languages Full User Manual | German, English, Spanish, French, Italian, Portuguese, Chinese, Japanese |
| Dimensions | 422 x 195 x 323 mm |
| Weight | 4.5 kg |
Have you considered your servicing requirements? Much like a car, scientific instruments may need a bit of care to keep them working reliably and at their most accurate.
The Camlab Service Department have over 60 years experience in scientific instrumentation. We have a number of highly qualified internal and field-based service engineers able to perform a variety of jobs including preventative maintenance servicing and calibration.
Camlab can offer yearly service contracts which include two main types of preventative maintenance/calibration services – the back to base service and an engineer visit to your site. These options are can be offered with differing turn around times depending on the instrument type and your requirements along with loan instruments if available.
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A typical preventative maintenance service includes the following: Inspection and testing of the unit
Dismantling, cleaning and inspection of the key parts
Correction of minor defects including adjustments if necessary
Reassembly and testing
Take post adjustment / cleaning readings
Supply of calibration certificate
Return of the item to you (back to base services)
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Request a quote for your servicing requirements today.
The material from which the cell is made may affect the measurements: plastic cells are more subject to scratching and discolouration and may be subject to chemical or thermal damage. Common materials are borosilicate or optical glass. Both are equally transparent to visible light, but borosilicate glass is more resistant to thermal shock. If you need to heat your samples to above ambient temperature to make them transparent for measurement, borosilicate cells in a heated instrument are recommended. This avoids incorrect results as samples cool or swirl due to temperature changes. Although more resistant, Borosilicate cells are not invulnerable: we strongly recommend samples are placed in the cell at room temperature and then heated in an oven to the required temperature.
Any mess on the cell or the instrument leads to inaccurate results, particularly with automatic instruments whose enhanced precision makes them more sensitive to contamination.
If the cell is dirty, smeared or dusty, it will scatter light, making the detector see the sample as darker than it actually is. Always ensure that the clear ends of the cell are clean and completely free from fingerprints etc. These marks can be removed with a soft cloth. You should also clean a cell before using it the first time: the wrapping, while stopping dirt and dust, leaves a small residue on the surface of the glass.
Oil contents can be removed using a soft brush and by washing gently in lukewarm soapy water (hot water might cause the cells to crack). Particularly stubborn samples can be carefully removed with a solvent like isopropanol. Once the cell has been cleaned, flush it first with tap water, then rinse in de-ionised water to remove any tap water minerals. Turn the cell upside-down to drain and dry.
While damage or dirt on a cell is easily visible, the same may not be true of contamination of a sample chamber, which can build up over time inside the instrument and is not easily visible. To guard against this, it is important to routinely carry out conformance checks using liquid or glass references. These ensure that an instrument’s long-term accuracy is monitored and maintained
Liquid references have several advantages, most importantly that the instrument is being tested using standards similar in nature to the samples being measured. Specifically, liquid references can highlight potential problems in sample preparation and measurement procedures (use of the correct path length, cleanliness of the cell, its correct positioning), as well as the overall accuracy of the instrument.
Glass standards have advantages in their ease of use and shelf life. They are also impossible to spill, take up less space and are easily cleaned. Individual filters and sets for a range of instruments and colour scales are available. Each is provided with a certificate of conformity showing the certified value, acceptable tolerances for the scale, nominal value and instrument.
A vital aspect of correct practice is to ensure the right cell is used for the measurement. Some colour scales incorporate a path length correction into the method. Here it is possible to use different path length cells and enter this path length into the instrument’s settings to calculate the correct result. In other cases, one must either use the default path length, where there is one, or, when you have an option, always report the result with the actual cell used. Details of which path lengths are recommended for which scales can be found on the Tintometer® Group’s website.
Older instruments should be sent back-to-base for calibration. On return, you should receive a certificate of calibration to ISO 9001 for the instrument, listing the standards used, their pass/fail tolerances and the measurements given at the time of the test.
An alternative process is RCMSi where tightly controlled calibration liquids are measured via the Calibration function of a Lovibond® PFXi. Data is electronically communicated to a secure server and compared to Master Data. If the data passes within tolerance, a Certificate of Calibration is made available to the user. This ensures a PFXi instrument is operating correctly and fully calibrated using ISO 17025 certified standards. Using this system allows the operator to get the confidence of a back-to-base calibration, without needing to transport the instrument: saving cost, time and environmental impact.
By using one or more methods of verification, you can be confident that the results that your instrument is giving are consistent over time, as well as with other instruments reading to the same test methods. Ensuring the accuracy of an instrument prevents potentially costly mistakes, immediately picking up deviations so fixes can be applied.
Below is a list of Lovibond Cuvettes and Vials
| For more information on this product please click the Request information button below and we will get back to you as soon as we can. |
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Alternatively, a consultation visit from one of our highly experienced product specialists is available for this range. Typically our specialist will be able to go through the following aspects with you to help you make the right choices and be able to deliver them on time and and on budget.
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| Request Consultation |
| The links above will take you to our request information page which will forward your enquiry to our team. Please provide as much detail as possible so that we can get back to you with the right information. We normally aim to get back to you same day or within 24 hours on weekdays. If you enquiry is more urgent please call our support team on 01954 233 120 |
Spectrophotometers are relied on by a wide range of laboratories, for tests ranging from specific parameters, like chlorine or metals concentrations, right through to complex analyses of reaction kinetics. When choosing a spectrophotometer the range of specifications and price is vast, so take the time to list the features you need before you buy and make sure you choose the right one. [c...
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