manufacturer :       Thermo Fisher

model :                   QuantoDesk

annotation :           Dokumente engl .

ARL QUANTODESK

The Smallest, Flexible CCD Based Metals Analyzer

Your need...

You need the flexibility of a full-size multi-matrix metals analyzer in a limited space and at an affordable price....

Our solution...

The ARL QUANTODESK is a very compact desktop spectrometer for metals analysis based on CCD (Charge Coupled Device) technology. A single CCD replaces the photomultiplier detectors used in traditional spark spectrometers and gives the instrument immense flexibility. The ARL QuantoDesk has the potential to analyze all elements without any optical compromise.

CCD technology appeared ten years ago in spectroscopy, permitting lower costs and smaller desktop instruments. In its broadest definition, a charge coupled device (CCD) image sensor is an analogue integrated circuit converting an optical image into an electronic output. As with many semiconductor components, the evolution of CCDs from a laboratory concept has been extremely rapid, boosted by their potential for a wide range of applications in both consumer products and sophisticated professional equipment. Today, Thermo Electron uses this advanced technology in spectrometers such as the ARL QUANTODESK.

The ARL QUANTODESK provides the capability to perform a rapid check close to the furnace where its performance meets the analytical needs of quality control departments. Its simple architecture allows for high accuracy, stability and reliability, making it the solution for numerous industrial applications in rugged environments.

Proven applications

The ARL QUANTODESK is ideal for the following industries:

• Small and medium size foundries
• Larger foundries which need to perform a quick check near the furnace
• Manufacturing facilities
• Quality control departments
• Warehouses

The ARL QUANTODESK can be calibrated for all applications without any optical compromise. A wide range of standard factory calibrations or future updates are available covering all the common alloy ranges and grades.

The customer can add new calibrations at any time or extend existing calibrations without any additional need for hardware changes.

The ARL QUANTODESK is currently being used in many application areas, including the following:

• Ferrous alloys
• Low alloy steel
• Cast iron
• Stainless steel
• Manganese steel
• Stainless iron
• Aluminum alloys
• Global calibration
• Low alloy aluminum

• Copper alloys
• Brass
• Bronze
• Zinc alloys

Key features

• Simple and easy to use, permits lowest cost sample analysis
• Up and running within a few hours of delivery
• Minimal argon consumption to flush the stand and the spectrometer in comparison to its peers
• Additional “Quick purge” kit to save argon costs. Permits the operation of the ARL QUANTODESK in less than 30 minutes after the instrument has been switched off overnight or for several days
• No vacuum pumps and small exhaust filter, minimize maintenance costs
• Full wavelength coverage, provides the ability to identify unknown elements and reduces the need for external analytical services
• Peltier cooled CCD to increase the accuracy of the measurement
• Identical source to proven stationary instruments:
• Multi-frequency spark source
• Variable, computer controlled excitation conditions
• Up-to-date computer:
• USB ports -Network port
• CD-RW drive

User-friendly WinDPI software

The WinDPI software operating under Microsoft Windows® XPTM, includes three modules providing all the features necessary for:

• Routine analysis
• Calibrations
• Qualitative analysis

The ARL QUANTODESK can be used in a variety of different operating modes:

• Quantitative analysis
• Positive Material Identification (PMI)
• Grade identification / Alloy verification
• Mix-up or Pass / Fail Identification
• Qualitative analysis (Finger Print Mode)

Analytical module: simple, customizable

WinDPI from Thermo Electron was designed with a simple user-friendly interface to reduce the overall learning phase. WinDPI assists your operators in achieving their routine tasks efficiently and quickly. Large, user-friendly icons provide easy access to every function. In addition, comprehensive on-line help is available.

WinDPI can be customized with different configurations:

• Automatic averaging
• Automatic storage of results
• Statistical information (means, standard deviation, relative standard deviation)
• Specific customer language

The following features are available on the analytical module of WinDPI :

• Simple standardization / Type standardization
• Customization of the grades library
• Check of results against material grade specifications
• Results storage and retrieval

Calibration module: MVR facilities

The same Multi-Variable Regression (MVR) tool used in the high-end optical emission instruments is available. This feature permits:

• Unlimited calibrations
• Either standard or customer specific
• Each calibration can cover an unlimited number of elements or analytical channels in chosen matrices
• On-site adjustments such as
• Extensions
• New lines
• New bases
• Curve corrections

Profile module: qualitative analysis

This module makes the entire image stored by the CCD available and permits:

• Identification of unknown elements
• Comparison of different materials

Flat Held optical system

• Simple configuration without mirrors or intermediate optics (one primary slit, one grating, no secondary slit)
• Simple detection system (single CCD)
• The simplicity of this system facilitates manufacturing of very stable and reliable instruments

Specifications for the ARL QUANTODESK

Spectrometer

Spectrometer

Flat field optical spectrograph with one entrance slit, grating and solid-state detector

Wavelengths from 170 to 410 nm

Purged with argon

Focal length

200 mm

Slit width

10 µm

Type of detector

Linear CCD image sensor with 8044 pixels

Lumogen coating on CCD

Cooled by Peltier device

Pixels

Photodiode 7x7 µm at 7 µm pitch

Grating type

Holographic 755 groves/mm

Average resolution

30 pm/pixel

Sample stand

Argon flushed table

Source

Type

Hi-Rep condensed Arc

Frequency

100, 200, 400 and 600 Hz

Software

User interface

WinDPI software

Operating system

Windows® XP

Requirements

Ambient temperature

15-30°C (59-86°F)

Short term variations within these limits must not exceed 2°C/h

Relative humidity

30-80%

Voltage

230/110 V (+10%/-10%), single-phase with protective ground

Current

1.6/3.2 A excl. PC, screen, printer

3.5/7.0 A incl. PC, screen, printer

Frequency

50 or 60 Hz

Grounding

<1Ω

Argon

99.998%

Consumption

Electrical power

370 VA excl. PC, screen, printer

805 VA incl. PC, screen, printer

Argon

4.0 l/min during analysis, 0.9 l/min on stand-by

Compliance to norms

98/37/EC                     Machinery

73/23/EEC                   Low voltage material

89/336/EEC                 Electromagnetic compatibility

Dimensions and weight

Overall dimension

398 x 444 x 750 mm or 16 x 17.5 x 29.5 inches

Weight

Approximately 45 kg or 99 lb. excl. PC, screen, printer

Approximately 60 kg or 132 lb. incl. PC, screen, printer