SI-200E Fixed Gas Detector

SI-200E Fixed Gas Detector — Reliable Safety for Hazardous Environments

The SI-200E is a highly durable, explosion-proof fixed gas detector designed to monitor oxygen (O₂), combustible gases, and toxic gases in potentially hazardous industrial environments. Ideal for use in oil and gas facilities, chemical plants, and confined industrial spaces, the SI-200E delivers real-time gas concentration readings with advanced communication features to support modern safety infrastructures.

This robust device features a diffusion-type sensing method and displays gas levels and diagnostic status via a 4-digit FND display. With support for both analog (4-20mA) and digital RS-485 Modbus communication protocols, along with optional Bluetooth connectivity, the SI-200E provides seamless integration into new or existing monitoring systems. It also supports HART protocol as an option.

With a high IP66 rating and an aluminum explosion-proof housing, the SI-200E withstands extreme temperatures and harsh industrial conditions while delivering accurate, continuous monitoring to prevent accidents and ensure workplace safety.

Key Features

• Multi-Gas Detection
  Measures O₂, toxic gases, and combustible gases in real time with high precision.

• Dual Communication Modes
  Supports 4-20mA analog output and RS-485 digital communication for flexible system integration.

• Bluetooth Interface
  Allows wireless configuration and calibration via mobile or PC, simplifying maintenance.

• Explosion-Proof Housing
  Constructed with rugged aluminum alloy for use in classified hazardous areas.

• Real-Time Monitoring
  4-digit FND display provides continuous updates on gas concentrations, alarms, and device diagnostics.

• High Environmental Resistance
  Rated IP66 for dust-tight and water-resistant performance in demanding field conditions.

• Multi-Level Alarm System
  Built-in relays for 1st and 2nd level gas alarms, plus fault alarm, each rated at 2.0A @ 30VDC.

• Wide Operating Range
  Operates reliably in temperatures from -40°C to +60°C, suitable for both indoor and outdoor installations.

• Flexible Input & Setup
  Configure via 4 onboard buttons, RS-485, or Bluetooth. Optional HART protocol support available.

Technical Specifications

• Model: SI-200E

• Measuring Type: Diffusion

• Gas Types: Oxygen, Toxic Gases, Combustible Gases

• Display: FND (4-digit), gas concentration, alarm, malfunction

• Communication Interfaces:

  • Analog: 4-20mA

  • Digital: RS-485 Modbus

  • Wireless: Bluetooth

  • Optional: HART protocol

• Relay Outputs:

  • Alarm 1

  • Alarm 2

  • Fault (2.0A @ 30VDC)

• Power Supply: +24V DC ±10%

• Power Consumption: 3.6W

• Enclosure Material: Explosion-proof aluminum

• Ingress Protection: IP66

• Dimensions: 169(W) × 188.5(D) × 107(H) mm

• Weight: 2.4 kg

• Operating Temperature: -40°C to +60°C

• Warranty:

  • Device: 2 years

  • Sensor: 1 year

Applications

• Oil and Gas Facilities

• Petrochemical and Chemical Plants

• Power Plants

• Industrial Warehouses

• Waste Treatment Facilities

• Refineries

• Manufacturing and Production Lines

• Confined Spaces and Hazardous Zones

The SI-200E ensures maximum workplace safety by providing early detection and alarm notifications, making it an essential tool in any industrial safety system.