Z-901 CSi : Carbon and silicon analyzer

Carbon and Silicon Analysis

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

Why the CSi?


Many operators own one or more XRFs for PMI/NDT. It’s their preferred tool for high temp alloys, and for elements contributing to carbon equivalents (CE), residuals, and stainless steel grades: V, Mn, Cr, Ni, Cu, Nb, Mo. However, XRF does not measure carbon and therefore no carbon equivalents, no separation of L- and H-grade stainless, nor can you use the more forgiving low RE formula (Ni + Cu) < 0.15%. The CSi is the perfect tool for operators who own XRF and need the occasional carbon measurement. It delivers fast, reliable carbon results to complement XRF tests, at a lower cost than the full LIBS system for carbon plus alloys. And SciAps cloud-driven data merging and report generation bring it all together in one report.

The CSi shows multiple carbon and silicon measurements, and the average. Meets multi-test averaging protocols required by some refineries and pipeline operators.

SciAps breakthrough LIBS technology is now widely accepted for carbon testing.

It’s included in API 578 2nd Edition, it’s accepted at most every major refinery, and in use worldwide by fabricators, pipeline owner/operators, power plants and other users of carbon steels and L- and H-grade stainless.


Ultra compact: At 3.5 lbs. (1.6 kg),

The CSi rivals the size and weight of most handheld XRF units. It’s the world’s smallest, lightest weight, sleekest analyzer for carbon analysis in alloys.

Cloud-based integration of XRF and CSi data

Two analyzers means twice the reporting hassle, right? No. SciAps offers a cloud-based data merge and reporting tool so you can quickly merge CSi and XRF data to produce reports combining carbon and silicon from the LIBS with metals analysis from the XRF. Are you using a different XRF brand? No problem – ask your supplier for the data structure of their data export and we’ll incorporate it into our SciAps Cloud package. The data structure generally follows an industry standard and doesn’t involve proprietary software.

Z-901 CSi LIBS Analyzer


4.35 lbs. (1.97 kg) with battery


10.75 x 2.875 x 8.625 inches


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


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


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.


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

Processing Electronics

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

Data Storage

Results Storage: 32 GB SD

Spectral range

190-420 nm


Aluminum: Be, Mg, Al, Si, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Zr, Pb, Bi, Ag, Sn

Titanium Base: Al, Ti, V, Cr, Fe, Cu, Zr, Nb, Mo, Sn

LAS Base: C, Al, Si, Ti, V, Cr, Mn, Fe, Cu, Ni, Nb, Mo, Pb

Stainless Steels: C, Al, Si, Ti, V, Cr, Mn, Ni, Fe, Ni, Cu, Nb, Mo, W

Nickel Base: Al, Si, Ti, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, W

Copper Base: Be, Al, Si, Cr, Mn, Fe, Ni, Cu, Zn, Ag, Sn, Pb, Bi

Cobalt Base: Al, Si, Ti, Cr, Mn, Fe, Co, Ni, Cu, Nb, Mo, W

Specialty Bases: Mg, V, Cr, Mn, Co, Zn, Zr, Nb, Mo, Ag, Sn, Hf, Ta, W, Re, Pb, S

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.

Laser Raster

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


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.

Drift Correction

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

Grade Library

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

Model Range Best Application
Z-901 200 – 420 nm General alloy testing for scrap sorting, PMI/NDT or quality assurance. Does not measure carbon.
Z-901 CSi 190 – 240 nm Analyzes carbon and silicon only. The perfect complement to your XRF.

Video demo

Presentation of portable LIBS C901 CSi
Presentation of the new portable LIBS spectrometer from SciAps, the Z9
Conference on LIBS at the Industrial Analysis Exhibition co-hosted in part by Quantum RX
Produits annexes