Description
The SENKO SI-200E Explosion-Proof Fixed Gas Detector is a diffusion-type fixed gas detector designed for continuous monitoring of oxygen, toxic, combustible, and specialty gases in hazardous industrial environments. The SI-200E provides continuous real-time gas concentration monitoring with a local digital display and is available in a wide range of gas and detection-range configurations.
Designed for demanding industrial gas detection applications, the SI-200E features an explosion-proof enclosure, 4-digit digital concentration display, 4–20 mA analog output, RS-485 digital communication, alarm relays, and wireless configuration capability. HART communication is also available as an option.
With an IP66 enclosure and operating temperature range of -40°C to +60°C, the SI-200E is designed for installation in harsh and hazardous industrial environments. Multiple sensor technologies and gas configurations are available for applications ranging from standard oxygen and toxic-gas monitoring to combustible, VOC, and specialty-gas detection.
Detector Type: Explosion-Proof Fixed Gas Detector
Detection Method: Diffusion
Available Gases: Oxygen, Toxic, Combustible, VOC & Specialty Gases
Display: 4-Digit Digital Concentration Display
Analog Output: 4–20 mA
Digital Communication: RS-485
Ingress Protection: IP66
Operating Temperature: -40°C to +60°C
Need help selecting the correct SI-200E gas or detection range?
Call CPS Calibrations at 865-900-8844 or email info@cpscalibrations.com.
- Explosion-Proof Design: Designed for fixed gas monitoring in hazardous industrial environments.
- Diffusion Sampling: Continuously monitors the surrounding atmosphere without an internal sampling pump.
- 4-Digit Digital Display: Provides local indication of gas concentration, alarms, and detector status.
- 4–20 mA Output: Standard analog signal for integration with controllers, PLCs, and monitoring systems.
- RS-485 Communication: Digital communication capability for integration with compatible monitoring systems.
- Modbus Communication: Supports RS-485 Modbus communication.
- Optional HART: HART communication is available as an option.
- Wireless Configuration: Supports wireless configuration and calibration functions.
- Alarm Relays: Provides 1st alarm, 2nd alarm, and fault alarm relay outputs.
- IP66 Protection: Rugged enclosure provides protection for demanding industrial installations.
- Wide Operating Temperature: Designed for operation from -40°C to +60°C.
- Multiple Sensor Technologies: Available for oxygen, toxic, combustible, VOC, and specialty-gas applications.
- Self-Diagnostics: Built-in diagnostic functionality assists with detector status monitoring.
- Industrial System Integration: Designed for connection to fixed gas detection controllers and facility monitoring systems.
| Model | SI-200E |
| Detector Type | Explosion-Proof Fixed Gas Detector |
| Measurement Method | Diffusion |
| Display | 4-Digit FND Digital Display – Gas Concentration, Alarm & Malfunction Status |
| Operating Power | 24 VDC ±10% |
| Power Consumption | 3.6 W @ 24 VDC |
| Analog Output | 4–20 mA |
| Digital Output | RS-485 |
| Communication | RS-485 Modbus; HART Optional; Wireless Communication Supported |
| Alarm Relays | 1st Alarm, 2nd Alarm & Fault Alarm – Rated 2.0 A @ 30 VDC |
| Operating Temperature | -40°C to +60°C |
| Ingress Protection | IP66 |
| Dimensions | 169 W × 188.5 D × 107 H mm |
| Detector Weight | 2.4 kg (approximately 5.29 lb) |
| Configuration | 4 Buttons, RS-485 & Wireless |
| Device Warranty | 2 Years |
| Sensor Warranty | 1 Year |
| Included Components | Detector, Weatherproof Guard, Magnet & Manual |
Available gases, sensor technologies, measuring ranges, certifications, and other specifications vary by detector configuration. Verify the selected SI-200E configuration before ordering.
The SENKO SI-200E is available in numerous gas and measuring-range configurations. Common configurations include:
| Oxygen (O₂) | 0–30% Vol. |
| Carbon Monoxide (CO) | 0–200 ppm, 0–500 ppm or 0–2,000 ppm |
| Hydrogen Sulfide (H₂S) | 0–100 ppm or 0–500 ppm |
| Methane (CH₄) | 0–100% LEL |
| Hydrogen (H₂) | 0–100% LEL or 0–1,000 ppm |
| Propane (C₃H₈) | 0–100% LEL |
| Ammonia (NH₃) | 0–100 ppm or 0–1,000 ppm |
| Nitrogen Dioxide (NO₂) | 0–20 ppm |
| Sulfur Dioxide (SO₂) | 0–20 ppm |
| Chlorine (Cl₂) | 0–5 ppm, 0–10 ppm or 0–20 ppm |
| Carbon Dioxide (CO₂) | 0–5,000 ppm or 0–5% Vol. |
| VOC | Multiple PID detection ranges available |
Additional combustible, toxic, and specialty-gas configurations are available. Contact CPS Calibrations if you do not see the gas or measuring range required for your application.
Product Documentation