Schütz S-ANALYZER 200 V5.0 Multi-Gas In-Situ Infrared Gas Analyzer
| Brand | Schütz SIGAS |
|---|---|
| Origin | Jiangsu, China |
| Model | S-ANALYZER 200 V5.0 |
| Instrument Type | Online Fixed-Mount Analyzer |
| Detection Principle | Non-Dispersive Infrared (NDIR) Spectroscopy |
| Number of Channels | Up to 5 Simultaneous Gas Components |
| Measurement Range (Min) | 0–50 ppm |
| Repeatability | ±1% FS |
| Resolution | 0.1 ppm |
| Response Time (T90) | <2 s at 60 L/h flow rate |
| Zero Drift | <±1% FS / 7 days |
| Span Drift | <±1% FS / 7 days |
| Linearity Error | <±2% FS |
| Operating Flow Rate | 0.2–1.2 L/min (±0.02 L/min stability required) |
| Inlet Temperature | 5–35 °C |
| Inlet Pressure | ≤116 kPa (abs) |
| Inlet Humidity | Non-condensing |
| Particulate Load | ≤100 µg/m³, particle size ≤1 µm |
| Display | 5.6" TFT LCD touch screen |
| Analog Output | 4–20 mA (configurable), 2 mA fault signal |
| Digital Communication | RS232 (DB9 female), RS485 Modbus RTU |
| Relay Outputs | 6 configurable dry-contact relays (1 A @ 250 V AC / 2 A resistive) |
| Power Supply | 198–242 V AC, 50/60 Hz, <125 W |
| Enclosure Rating | IP41 (EN 60529) |
| Weight | ~10 kg (net), ~19 kg (packaged) |
| Calibration Gases | Zero gas — 99.999% N₂ |
Overview
The Schütz S-ANALYZER 200 V5.0 is a fixed-installation, multi-component infrared gas analyzer engineered for continuous, real-time monitoring of up to five gaseous species in industrial and environmental applications. It employs non-dispersive infrared (NDIR) spectroscopy—leveraging the unique absorption characteristics of target molecules in the mid-infrared region—to deliver selective, interference-resistant quantification of CO, CO₂, CH₄, SO₂, NO, NO₂, NH₃, and other IR-active gases. Designed as a standard 19-inch rack-mount unit, the analyzer integrates optical path stability, thermal management, and pressure-compensated detection to maintain measurement integrity under variable process conditions. Its architecture supports long-term unattended operation with minimal maintenance intervals, making it suitable for deployment in semiconductor cleanrooms, power plant flue gas streams, chemical reactor off-gas lines, landfill biogas collection systems, and tunnel ventilation networks where regulatory compliance and process safety depend on sub-second response and trace-level sensitivity.
Key Features
- Integrated 5.6-inch capacitive touchscreen interface with intuitive menu navigation and three configurable display modes: real-time numeric concentration readouts (up to three channels simultaneously), detailed parameter view (including temperature, pressure, and units), and dynamic concentration trend curves with time-stamped overlays.
- Triple-point calibration capability—zero, mid-range, and full-scale—enabling high linearity across extended operating ranges without manual gain adjustment.
- Secure access control via password-protected calibration and alarm configuration menus to prevent unauthorized parameter changes in shared or regulated environments.
- Bilingual UI support (English/Chinese) with one-touch factory reset functionality—eliminating the need for field service intervention following configuration errors.
- Modular inlet filtration system designed for hot-swap replacement without disassembly or process shutdown—critical for 24/7 continuous emission monitoring (CEM) and process control applications.
- Rack-mountable (19″ EIA) and desktop-compatible mechanical design, compliant with EN 60529 (IP41) for protection against solid ingress and limited water exposure in controlled indoor settings.
Sample Compatibility & Compliance
The S-ANALYZER 200 V5.0 accepts conditioned sample gas streams meeting strict physical and chemical specifications: non-condensing moisture content (dew point ≤5 °C ±0.1 °C, mandatory for SO₂ and NO measurements), particulate loading ≤100 µg/m³ (particles ≤1 µm), and stable flow rate within 0.2–1.2 L/min (±0.02 L/min tolerance). For photoacoustic spectroscopy (PAS) variants, flow must be maintained at 1.5–2.0 L/min. The analyzer conforms to electromagnetic compatibility requirements per EN 61326-1 and electrical safety standards per EN 61010-1. While not certified for hazardous area installation (e.g., ATEX or IECEx), its design supports integration into safety instrumented systems (SIS) when deployed upstream of zone boundaries. Data integrity aligns with GLP and GMP principles through audit-trail-capable calibration logging, though native 21 CFR Part 11 compliance requires external software validation.
Software & Data Management
Data acquisition and system control are handled locally via the embedded touchscreen HMI, which stores calibration history, alarm events, and trend logs with timestamping. Analog outputs (4–20 mA) provide direct interfacing with DCS, PLC, or SCADA systems, while digital communication supports both RS232 diagnostics and RS485 Modbus RTU for multi-analyzer network integration. Six programmable relay outputs enable automated coordination with external solenoid valves (e.g., zero/span gas switching), fault signaling, and channel-specific high/low concentration alarms. All relay assignments are user-configurable via the HMI without firmware modification. No proprietary cloud platform or vendor-hosted software is required—data export occurs via USB or serial dump for third-party analysis tools.
Applications
- Continuous emissions monitoring (CEM) of CO, CO₂, and NOₓ in coal-fired and biomass combustion exhaust stacks, supporting ISO 14064 and EU Directive 2010/75/EU reporting requirements.
- In-line process gas analysis in semiconductor fabrication tools (e.g., etch chamber purge monitoring), where rapid T90 <2 s ensures timely feedback for closed-loop pressure and composition control.
- Biogas quality assurance in anaerobic digesters and landfill gas upgrading facilities—tracking CH₄, CO₂, H₂S, and O₂ to optimize membrane separation or catalytic reforming efficiency.
- Tunnel air quality surveillance per EN 13040 and CEN/TS 16839, detecting CO and NO₂ concentrations for ventilation fan activation and emergency response triggering.
- TOC off-gas analysis in pharmaceutical water-for-injection (WFI) systems, where low ppm-level CO₂ detection correlates directly with organic carbon load in purified water loops.
- High-temperature blast furnace top gas analysis (with optional cooling and dilution modules), enabling real-time optimization of coke rate and slag chemistry.
FAQ
What gases can the S-ANALYZER 200 V5.0 measure simultaneously?
Up to five IR-absorbing gases—including CO, CO₂, CH₄, SO₂, NO, NO₂, and NH₃—depending on configured optical filters and detector modules. Channel selection is defined at factory commissioning and documented on the analyzer nameplate.
Is the analyzer suitable for hazardous area installation?
No. The S-ANALYZER 200 V5.0 carries an IP41 rating and is intended for use in non-hazardous, climate-controlled indoor environments. Integration into classified zones requires external explosion-proof enclosures or sample extraction systems.
How often does the analyzer require calibration?
Zero and span calibration intervals depend on application severity and regulatory requirements. Under typical industrial conditions, quarterly zero checks and semi-annual multi-point calibration are recommended. Drift performance (<±1% FS over 7 days) supports extended verification cycles when validated per ASTM D6522 or ISO 12039.
Can analog outputs be scaled to custom measurement ranges?
Yes. The 4–20 mA output mapping is fully configurable per channel—users may assign any lower/upper range limit to correspond with 4 mA and 20 mA, respectively—without hardware modification.
Does the device support remote diagnostics or firmware updates?
Local diagnostics are accessible via RS232 terminal emulation. Firmware updates require physical USB connection and authorized engineering credentials; no over-the-air (OTA) capability is provided to ensure deterministic behavior in regulated processes.

