Z-902 Analyzer

The world’s first handheld analyzer to deliver carbon content just got better.

Meet the Z-902 +

The Z-902 + features an all-new ergonomic design, a 0.5 lb. weight reduction down to about 3.5 lbs. (1.6 kg), improved heat dissipation, and completely updated software and processing electronics.

The Z-902 + can use on-board argon purge for high precision analysis or QuickSort for rapid material sorting or grade identification with air-burn. Depending on the element, the LIBS signal is 2x-10x higher when operating in argon purge versus air-burn.

The analyzer uses two spectrometers to extend the  wavelength range to 190 – 620 nm. The instrument is factory calibrated for a suite of 15-20 elements, depending on application. Or operators may use the accompanying Profile Builder software package to customize to specific elements, their own calibration standards, and spectral processing.  The Z-902 + can be set up to measure the emissions of any element. Common factory-calibrated Z-902 + applications include alloy and aluminum.

Alloy Analysis

Alloy: Argon-purge for high precision and improved detection limits. Many customers use argon-purge to analyze and sell mill-ready aluminum scrap.  

QuickSort: Air-burn for rapid material sorting or grade identification.

The Z-902 + for alloy analysis measures 15-20 elements in 7 common alloy bases, including aluminum, stainless, iron, copper, titanium, nickel and cobalt bases. Other bases may be added for a small fee, or users may add their own calibrations.

Need to measure carbon in steels and stainless—including verifying L- and H-grade stainless? Use SciAps Z-902 Carbon, in use globally for measuring carbon and other elements in steels, stainless and nickel alloys.

Already own handheld XRF—and only need to add carbon measurements? Use Z-901 CSi, the ultra-compact analyzer that measures C and Si in steels, stainless.

Z-902 Carbon: A new industry standard

The key to rock solid, in-field carbon analysis for alloys.

  • Identification of stainless steels and low alloy steels, including carbon analysis down to 70 ppm and instant CE (carbon equivalents) calculations.

  • Powerful laser, on-board argon purge and high resolution spectrometer are built for carbon.

  • Narrow profile for accessing the tightest spaces, aerospace-grade aluminum body for improved performance in high ambient temperatures, and re-designed user-interface. The most usable platform on the market, at only 4.35 lbs. (1.97 kg).

Spectrometer range 190 nm – 420 nm. Includes a second, dedicated spectrometer for superior resolution in the 190 – 230 nm range for carbon.

In use globally

Confirm alloy type and grade 300 series stainless steels into L, H, and S series. Carbon equivalent for welding. Material verification pre- and post-fabrication. Validating mill test reports. Material verification in chemical plants and refineries. Re-rating vessels.

Pipeline integrity management
Grading. Determining carbon equivalents. Validating MTRs.

Steel production
Screen incoming scrap material. In-process quality control. Resolving material mix-ups. Rapid screening of material at EAF for heat compliance.

With a precise real-time targeting system, you can live on the edge.

High-purity Argon and Purge

Argon purge is essential for quantitative analysis with LIBS and OES, and for carbon it’s critical. SciAps patented Opti-Purge technique is a key component for measuring carbon accurately. Opti-Purge delivers argon exactly where it’s needed and uses about 1,000 times less argon than a spark OES, allowing for a user-replaceable canister. Operators can analyze up to 600 samples with the argon canister for most alloy testing, and 125-200 samples for carbon analysis.

Analysis Averaging

Multi-shot averaging and data rejection are critical to getting the best carbon tests. The combination of these two features, known as analysis averaging, allows the operator to (optionally) reject test data with significant point-by-point discrepancies then automatically create a final result.

High Laser Pulse Energy and Frequency

The SciAps laser delivers 5-6 mJ/pulse on the sample, with a 50 Hz repetition rate. As any user of spark OES knows, sample prep is critical for carbon analysis—a good grind and a good pre-burn are as critical for LIBS as for spark OES. SciAps high energy and high rep rate laser (50 Hz) rapidly burns off surface contamination in order to provide a good analysis.

Micro-camera and LED Spotlight

Proper alignment is critical to getting good analysis. Take out the guess work with SciAps micro-camera and LED Spotlight. The camera shows the sample in high resolution and ensures that the instrument is positioned correctly; LED Spotlight shows exactly where the laser will burn the sample. Get a good burn every time.

Laser Raster

Rastering is critical for accurate carbon tests with LIBS. The Z moves the laser to 6 distinct locations and analyzes each spot for 0.5 seconds for every 3-second test. The laser is typically 50 um diameter beam. On that scale, micro inclusions in the alloys and the grain structure of the alloy can impact the analysis. By averaging across six unique locations, the system collects data that is representative of the alloy, not just an individual location.

Argon: Cost of Operation

Argon costs just pennies per test, far less expensive than spark OES and much more convenient.  What does that mean in real terms? It depends if you are doing carbon tests or general alloy tests.  You can expect to get about 100 tests per canister for carbon, and 600 tests for general alloy; if you buy your argon canisters in the 10 pack, it will cost you $65 ($6.50 each), which means 6 cents, or 1 cent per test, respectively. Don’t always need carbon? Then add on the SciAps “Dual Burn” capability for non-carbon tests in air.


4.35 lbs. (1.97 kg) with battery

Processing Electronics

ARM Quad Cortex -A53 1.2GHz memory: 2 GB LPDDR3, 16 GB eMMC


10.75 x 2.875 x 8.625 inches

Data Storage

Results Storage: 32 GB SD

Spectral Range

190-420 nm


2.7-inch high-brightness color touchscreen, readable in all conditions. Rear-facing display for easy results viewing.

Drift Correction

On-board automated drift correction software with factory or user-provided reference materials.

Sample Viewing

Integrated camera and laser target indicator before and during analysis provide proper sample alignment. Includes 2nd “macro camera” for scanning QR or barcodes and for photo-documentation and report generation.


On board rechargeable Li-ion battery, rechargeable inside device or with external charger, AC power.


CE, RoHS, USFDA registered. Class 3b laser. Sample sensor on board, allows for operation under Class 1 conditions subject to local LSO approval.

Laser Raster

On-board Y stage for rastering laser to discrete locations for targeted analysis or averaging.


Built on Google’s Android platform for real-time data exporting, including built-in WiFi (IEEE 802.11b/g/n), Bluetooth (BR/EDR+BLE), GPS and USB-C to connect to virtually any information management system.


Password protected. Multi-user support with configurable access.


SciAps proprietary Opti-Purge inert argon environment improves spectral signal-to-noise ratio; improves performance in UV range.

Calibration Check

Internal 316 stainless check standard for calibration verification and wavelength scale validation.


Carbon App:
Stainless Steels: C, Al, Si, Ti, V, Cr, Mn, Ni, Fe, Cu, Nb, Mo, W        
Iron Base: C, Al, Si, Ti, V, Cr, Mn, Fe, Cu, Ni, Nb, Mo, Pb

Alloy Bases and Pre-calibrated Elements:
Aluminum: Be, Mg, Al, Si, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Sr, Zr, Sn, Pb, Bi, Ag      
Copper Base: Be, Al, Si, Cr, Mn, Fe, Ni, Cu, Zn, Ag, Sn, Pb, Bi        
Nickel Base: Al, Si, Ti, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, W, Hf, Ta, Re  
Titanium Base: Al, Ti, V, Cr, Fe, Cu, Zr, Nb, Mo, Sn
Cobalt Base: Al, Si, Cr, Mn, Fe, Co, Ni, Mo, W      

Grade Library

500+ grades, multi-library support, libraries may be added or edited.

Get Both With ONEBOX

Pair any Z Series with our industry-leading XRF unit and get optimal analysis across every element in the periodic table and every sample type. Same batteries, cables, chargers and other accessories.

LIBS: Analyze elements XRF can’t test: Li, Be, B, C, F, Na and more. Improved performance on Mg, Ca, K compared to XRF. Microanalysis with 100 um laser spot size.  

XRF: Great for transition and heavy metals. Easy to use, especially on bulk, soil, and ore type materials.

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