Product details
Introduction
The SERVOTOUGH ST-3000 O2 Analyzer offers fast oxygen measurement for process control. The design supports stable readings, reliable uptime, and consistent accuracy. Powergear X Automation develops this guide to support selection and installation.
Key Benefits
- High accuracy: The analyzer reads oxygen with ±0.05% intrinsic error under normal operation.
- Fast response: The device reaches T90 < 6 seconds with proper sample flow.
- Strong durability: The housing meets IP66 / NEMA 4X for harsh plant environments.
- Flexible signals: The unit supports 0–20 mA, 4–20 mA, and RS485 communication.
- Wide operating range: The analyzer operates from -10°C to 55°C in industrial conditions.
Technical Specifications
- Brand: SERVOTOUGH | Model: SERVOTOUGH ST-3000 O2 Analyzer
- Measurement Range: 0–1% and 0–21% oxygen with selectable high and low calibration.
- Accuracy: <±0.05% oxygen (95% confidence limits).
- Repeatability: ±0.02% oxygen for stable continuous readings.
- Lower Detection Limit: <±50 ppm oxygen.
- Linearity: No measurable linearity error across the full range.
- Resolution: Output fluctuation stays below 0.01% oxygen peak-to-peak.
- Response Time: T90 < 6 seconds at 200 ml/min or 1 L/min sample flow.
- Sample Flow Effect: Zero effect <0.1%; span effect <0.5% within 50–250 ml/min.
- Temperature Coefficient: Zero shift <0.03% per 10°C change.
- Environmental: Operating altitude -500 to +2000 m; pressure 79–110 kPa absolute.
- Humidity: 0–95% RH, non-condensing.
- Power Supply: 100–120 VAC or 220–240 VAC ±10%, maximum 50 VA.
- Fuse Rating: T2.0A 250V (100–120V) / T1.0A 250V (220–240V).
- Outputs: 0–20 mA / 4–20 mA; fault output 0 mA or 21.5 mA.
- Relay Output: Rated 30 VDC, 1 A.
- Switched Inputs: 12–24 VDC, 5–15 mA with 0.5 s minimum activation time.
- Flowcube F3 Sensor: Error <±5% FS; resolution 1% FS; T90 < 15 seconds.
- Calibration Gas: 0.5–20.95% O2 high point; 99.5% nitrogen zero point.
- Calibration Interval: Recommended every 6–12 months.
Installation Guide
- Mount the analyzer in a stable, vibration-free location near the process tap.
- Use 0.5–2.5 mm² conductors for power connections as required by the terminals.
- Maintain sample flow between 40–60 ml/min for accurate measurements.
- Keep dew point at least 5°C below ambient to protect internal components.
- Set alarm points and milliamp ranges before placing the unit into service.
Packing List
- One SERVOTOUGH ST-3000 O2 Analyzer main unit.
- One factory-installed fuse and compatible power connection set.
- One operation manual and quick-start guide.
- One sample line connector kit and initial filter.
- Shipment via FedEx, UPS, or DHL.
FAQ
- How often should I calibrate this analyzer?
Most operators calibrate every six to twelve months based on usage. - What flow gives the fastest response?
A flow of 200 ml/min or 1 L/min helps the unit reach T90 quickly. - Can I use this analyzer outdoors?
Yes, the IP66 / NEMA 4X housing supports outdoor mounting with proper shielding. - Which gas should I use for zero calibration?
Use 99.5% nitrogen for accurate zero calibration. - How do I link the analyzer to a control system?
Connect the milliamp or RS485 output to your DCS following the wiring guide.
Contact & Purchase
- Email us: sales@powergearx.com
- WhatsApp: +86 18030005825
- Author: Powergear X Automation
Partners & Sources
- Partner: Ubest Automation Limited
- Original Source: https://www.powergearx.com/
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