Product Overview
The SI‑301 is a sampling-type fixed gas detector built for industrial environments, with explosion‑proof construction and advanced sensing capabilities. It draws gas samples remotely to perform precise real-time measurement using replaceable sensor cartridges.
- Explosion‑proof Structure: Designed for hazardous zones to minimize ignition risk.
- Cartridge‑type Sensor: Facilitates easy maintenance and replacement.
- Built-in Flow Control: Ensures stable and controlled sampling flow.
- Digital Display: 4‑digit readouts show both gas concentration and sample flow rate.
- Multiple Output & Communication Options: Supports 4‑20 mA, RS‑485, and Ethernet (with optional HART).
- Long Sensor Sampling Distance: Sampling and exhaust tubes up to 30 m (FEP) for flexible installation.
- Wide Operating Conditions: Rated for –40 ℃ to +55 ℃ with rugged design for industrial use.
- Warranty & Reliability: Device: 2 years / Sensor: 1 year.
| Feature | Details |
|---|---|
| Model | SI-301 |
| Size | 194(H) x 152.4(W) x 136(D) mm |
| Weight | 4kg |
| Power Supply | DC: 24V ±10% PoE: 36V~57V (Typical: 48V) |
| Flow Rate | 100~1000ml (Normal: 300~500ml/min) |
| Power Consumption | Approximately 5.0W |
| Display | FND, Gas Concentration, Flow, Alarm, Device Error |
| Relay | Low Alarm, High Alarm, Fault Alarm |
| Output | 4~20mA |
| Digital Communication | RS-485, TCP Ethernet |
| Sampling Distance | Sampling Tube: Max 30m (FEP tube) Exhaust Tube: Max 30m (FEP tube) |
| Tube Specification | 1/4” Teflon tube |
| Operating Temperature | -40℃ ~ +55℃ |
| Explosion-proof Certification | KCs: Ex d IIC T6 Gb |
| Input & Configuration | 4 Buttons, RS485, Ethernet, Bluetooth |
| Warranty (Device) | 2 years |
| Warranty (Sensor) | 1 year |
| Remote Interface | Ethernet, RS-485, HART (optional) |
| Wiring | 4 to 20mA / DC Power / Relay: Max 14 AWG |
| Pressure Range | 90 to 100kPa |
| Max. Sample Flow | Max 1,000ml |
| Max. Sample Pressure | 6kPa |
| Gas | Sensor | Range | A1 | A2 | Resolution |
|---|---|---|---|---|---|
| Oxygen (O₂) | Electrochemical | 0~30%Vol | 19.0%Vol | 23.0%Vol | 0.1%Vol |
| Carbon Monoxide (CO) | Electrochemical | 0~500ppm | 30ppm | 60ppm | 1ppm |
| Sulfur Dioxide (SO₂) | Electrochemical | 0~20ppm | 2ppm | 5ppm | 0.1ppm |
| Hydrogen (H₂) | Catalytic | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Hydrogen (H₂) | Electrochemical | 0~1000ppm | 100ppm | 500ppm | within 5ppm |
| Hydrogen Sulfide (H₂S) | Electrochemical | 0~100ppm | 10ppm | 15ppm | 1ppm |
| Combustible (-) | Catalytic | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Combustible (-) | IR | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Ammonia (NH₃) | Electrochemical | 0~100ppm | 25ppm | 35ppm | 1ppm |
| Acetylene (C₂H₂) | Catalytic | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Ethanol (C₂H₆O) | Catalytic | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Toluene (C₇H₈) | IR | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Toluene (C₇H₈) | Catalytic | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Methane (CH₄) | IR | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Methane (CH₄) | Catalytic | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Chlorine (Cl₂) | Electrochemical | 0~5ppm | 0.5ppm | 1.0ppm | 0.1ppm |
| Chlorine (Cl₂) | Electrochemical | 0~20ppm | 1ppm | 5ppm | 0.1ppm |
| Carbon Dioxide (CO₂) | IR | 0~2000ppm | 1000ppm | 1500ppm | 3ppm |
| Carbon Dioxide (CO₂) | IR | 0~5000ppm | 3010ppm | 5000ppm | 8ppm |
| Carbon Dioxide (CO₂) | IR | 0~5%Vol | 0.5%Vol | 3%Vol | 0.1%Vol |
| Hydrogen Chloride (HCl) | Electrochemical | 0~10ppm | 1ppm | 2ppm | 0.1ppm |
| VOC (VOC) | PID | 0~100ppm | 50ppm | 100ppm | within 3ppm |
| Xylene (C₈H₁₀) | IR | 0~100%LEL | 15%LEL | 50%LEL | 1%LEL |
| Hydrogen Peroxide (H₂O₂) | Electrochemical | 0~10ppm | 1ppm | 2ppm | 0.1ppm |
| Nitrogen Dioxide (NO₂) | Electrochemical | 0~20ppm | 3ppm | 5ppm | 0.1ppm |
