PMT optics • One meter Paschen-Runge mounting vacuum spectrometer • Special cast iron body, temperature controlled at 36 °C ±0.1 °C • Primary optics: heated focusing lens made of MgF2, CaF2 or fused silica, depending on application • Ruled gratings: 1080, 1667 or 2160 grooves/mm, appropriately selected for the analytical task • Primary slit width: 20 μm • Secondary slit width: 25, 37.5, 50 or 75 μm The Thermo Scientific™ ARL iSpark™ Series is a high- • Up to 80 photomultiplier tubes (PMT) detectors performance optical emission • PMTs: ∅ 28 mm, side-on-type, 10-stage, windows: MgF2, UV glass, borosilicate spectrometer platform based on glass or synthetic silica appropriately selected for the specific wavelength the famous Thermo Scientific • Wavelength range depending on grating and diffraction order, selected one-meter vacuum PMT optics for optimum resolution and sensitivity. Wavelength range: 120-800 nm and innovative technologies. The • Diffraction order selective filters in front of PMTs for gratings with 1080 ARL iSpark Series answers the and 1667 grooves/mm needs of the different market segments of the metallurgy and Spark stand brings an optimum solution for • Stand cover with ergonomic design for easy operation with maximal everyone. If offers high accuracy, operator security sensitivity, precision, stability and • Maximal sample size: 250 mm width x 250 mm depth x 150 mm height, reliability. maximal weight 10 kg • Sample clamp with ergonomic design • Spark-DAT methods for determination of soluble/ • Wear-resistant stainless steel analysis table with insoluble concentration and for inclusion analysis quick fastening system; no tools needed for Vacuum system assembly and dismantling • Rotary pump for wavelength range down to 170 nm • Design allowing argon savings and reduced maintenance with speed control for reduced electrical consumption • Smart Argon Management (SAM) with programmable • Membrane pump combined with molecular pump for argon flows and argon saving ECOmode operation down to 119 nm • Argon flows can be different for each phase of the Dimensions and weight analytical sequence (flush, pre-burn, integration). • Dimensions: 1750 m length x 860 m width x 1200 m Optimized for each application, between 2 to 5 l/min height (inches: 68.9 x 33.9 x 47.3) (typically 3 l/min) in analysis and 0.4 /min in stand-by requiring the minimum argon consumption • Weight: approx. 500 kg net (1100 lbs), 570 kg with pallet (1260 lbs) • Argon pulses after analysis for improved dust evacuation and instrument autonomy Requirements • Electrode: ∅ 1.4, 4 mm or pin electrode according to • Ambient temperature: 16-30°C (62-86°F); maximum application; 3 mm analytical gap rate of change ±5°C/hour • Relative humidity: 20-80% Control electronics • Instrument master control board (IMC) controlling • Voltage 230 V (+10% to -15%), single-phase with all spectrometer functions, data flows and protective ground (2.5 kVA regulator required if communication with OXSAS analytical software fluctuations exceed +10%) • Current: 10A, including PC, screen and printer Spark generator • Frequency: 50 or 60 Hz • intelliSource, current controlled, double current source (i.e. a double CCS) for high shape flexibility • Grounding: < 1 Ohm and reproducibility • Argon: > 99.998% maximum 5 ppm oxygen • Vectored spark shape definition, up to 200 A and (maximum 2 ppm oxygen for samples with high 2500 μs single spark duration Si content). Optional argon purifier available and recommended for low carbon analysis. For VUV lines • Spark short-circuit (DISC) to improve spark repeatability (carbon, nitrogen, oxygen, chlorine, hydrogen), argon Acquisition electronics and algorithmics purifier recommended • Programmable high voltage settings: -300 to -1000 V Consumption for each channel • Electrical power: 1 kVA • For each channel: • Argon: typically 3 l/min. during analysis, 0.4 l/min in –– Very low noise time gated differential integrator stand-by and down to 0 l/min in ECOmode allowing PMT dark current and electronic offset subtraction Compliance to norms –– TGA (Time Gated Acquisition), a ultrahigh • 2006/95/EC: Low Voltage Directive (LV) precision (100 ns) TRS from 2 to 6000 μs • 2004/108/EC: Electromagnetic compability (EMC) –– ADC bit depth: 20 bits • 2011/65/EU: Restriction of the use of certain –– SSA (Single Spark Acquisition) and storage Hazardous Substances in Electrical and Electronic –– FAST (Flexible Acquisition STart/stop) algorithm, Equipment (RoHS) for usage of optimal single sparks subsets • 2012/19/EU: Waste Electrical and Electronic • DISIRE (DIffuse Spark Intensity REmoval) algorithm Equipment (WEEE) for improved accuracy