Senko SI-301 Fixed Gas Detector

Brand: Senko

SKU: 100421

IP65 explosion-proof rated structure
Cartridge-type sensor for easy maintenance
Operating voltage: DC 24V or PoE 36V~57V
Large LCD for gas concentration and flow rate
Sample distance: up to 30m input/exhaust
RS485, TCP Ethernet, and Bluetooth control

Manual PDF

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Description

Buy Senko SI-301

The Senko SI-301 is a sampling-type fixed gas detector engineered to monitor and detect hazardous gases in real time, thereby enhancing safety across various industrial settings. Its advanced design and user-friendly features make it a reliable choice for continuous gas monitoring.

Key Features

The Senko SI-301 offers several notable features that contribute to its effectiveness:

Explosion-Proof Structure: Designed with an IP65-rated explosion-proof enclosure, the SI-301 ensures safe operation in hazardous environments.
Cartridge-Type Sensor: The detector utilizes a cartridge-type sensor, facilitating easy maintenance and quick sensor replacements.
Built-in Flow Control: Equipped with an internal flow control function, it maintains consistent sampling for accurate gas detection.
Large LCD Display: The device features a large LCD that provides clear digital indications of gas concentrations and flow rates, enhancing user readability.
Multiple Control Options: Users can configure the SI-301 through various interfaces, including RS485, TCP Ethernet, and Bluetooth, offering flexibility in integration and control.

Applications

The versatility of the Senko SI-301 makes it suitable for a wide range of industrial applications:

Semiconductor Industry: Monitors gases used in semiconductor manufacturing processes to prevent accidents related to suffocation, intoxication, and explosions.
Sewage Treatment Plants: Detects hazardous gases like hydrogen sulfide and methane, ensuring the safety of personnel and infrastructure.
Mining Operations: Continuous monitoring of combustible and toxic gases is crucial for preventing mine-related accidents.
Petrochemical Plants: Assists in detecting gas leaks and preventing potential fire or explosion hazards in petrochemical processing facilities.
Steelworks: Monitors for the presence of harmful gases during steel production processes, safeguarding workers and equipment.
Power Supply Operations: Ensures the detection of gas leaks in power generation and distribution environments, maintaining operational safety.

Connectivity and Integration

The Senko SI-301 is designed for seamless integration into existing safety systems:

Analog and Digital Outputs: It transmits real-time gas concentration data via a 4-20 mA output and supports RS485 communication, facilitating easy integration with various control systems.
Relay Configurations: The device includes three internal relays that can be configured for specific control actions, enhancing its adaptability to different safety protocols.

Maintenance and User Convenience

Designed with user convenience in mind, the SI-301 simplifies maintenance procedures:

Easy Sensor Replacement: The cartridge-type sensor design allows for quick and straightforward sensor replacements, reducing downtime.
User-Friendly Interface: The large LCD and intuitive control buttons make it easy for users to operate and configure the device as needed.

Senko SI-301 Specifications

The Senko SI-301 has a flow rate ranging from 100 to 1,000 ml, with a normal rate of 301 to 500 ml per minute.

Size	194mm(W) X 152.4mm(D) X 136mm(H)
Weight	4Kg
Operating voltage	DC : 24V ± 10%
Operating voltage	PoE : 36V~57V (Typical : 48V)
Flow rate	100 ~ 1,000 ml (Normal 301 ~ 500ml / min)
Power consumption	Approximately 5.0W
Measurement display	FND, gas concentration, flow rate, alarm, device faulty
Relay	Low Alarm, High Alarm, Fault Alarm
Analog Output signal	4-20mA
Digital communication	RS-485, TCP Ethernet
Sampling distance	Length of input gas tube: up to 30m (FEP tube)
Sampling distance	Length of exhaust gas tube: up to 30m (FEP tube)
Input/Output tube	1/4” Teflon tube
Operating temperature	-40°C ~ 55°C
Certification	KCs: Ex db IIC T6 Gb
IP	IP 65 (KS C IEC60529:2013)
Control/Set	4 Button & RS485 & Ethernet & Bluetooth
The warranty period of the device	2 years
Warranty period of sensor cartridge	1 year
Remote interface	Ethernet, RS-485, HART (Option)
Wiring	4 to 20mA / DC power / Relay : up to 14 AWG
Pressure range	90 to 110KPa
Maximum sample flow	Max. 1,000 ml
Maximum sample pressure	3KPa

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	0~500ppm	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	0.5ppm	1.0ppm	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	PID	0~1000ppm	50ppm	100ppm	within 3ppm
Xylene (C₈H₁₀)	IR	0~100%LEL	15%LEL	50%LEL	1%LEL
Hydrogen Peroxide (H₂O₂)	Electrochemical	0~10ppm	1ppm	3ppm	0.1ppm
Nitrogen Dioxide (NO₂)	Electrochemical	0~20ppm	3ppm	5ppm	0.1ppm
Ethylene Oxide (C₂H₄O)	Electrochemical	0~30ppm	1ppm	2ppm	0.1ppm
Ethylene (C₂H₄)	Catalytic	0~100%LEL	15%LEL	50%LEL	1%LEL
Nitrogen Monoxide (NO)	Electrochemical	0~100ppm	25ppm	50ppm	1ppm
Hydrogen Fluoride (HF)	Electrochemical	0~5ppm	0.5ppm	1ppm	0.1ppm

Buy the Senko SI-301 Fixed Gas Detector for an effective solution in real-time gas monitoring across multiple industries. Its strong features, application versatility, and user-friendly design make it an essential tool for ensuring safety in environments with potential gas hazards.

Manual

Specifications

Size	194mm(W) X 152.4mm(D) X 136mm(H)
Weight	4Kg
Operating voltage	DC : 24V ± 10%
Operating voltage	PoE : 36V~57V (Typical : 48V)
Flow rate	100 ~ 1,000 ml (Normal 301 ~ 500ml / min)
Power consumption	Approximately 5.0W
Measurement display	FND, gas concentration, flow rate, alarm, device faulty
Relay	Low Alarm, High Alarm, Fault Alarm
Analog Output signal	4-20mA
Digital communication	RS-485, TCP Ethernet
Sampling distance	Length of input gas tube: up to 30m (FEP tube)
Sampling distance	Length of exhaust gas tube: up to 30m (FEP tube)
Input/Output tube	1/4” Teflon tube
Operating temperature	-40°C ~ 55°C
Certification	KCs: Ex db IIC T6 Gb
IP	IP 65 (KS C IEC60529:2013)
Control/Set	4 Button & RS485 & Ethernet & Bluetooth
Warranty period of the device	2 years
Warranty period of sensor cartridge	1 year
Remote interface	Ethernet, RS-485, HART (Option)
Wiring	4 to 20mA / DC power / Relay: up to 14 AWG
Pressure range	90 to 110KPa
Maximum sample flow	Max. 1,000 ml
Maximum sample pressure	3KPa

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	0~500ppm	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	0.5ppm	1.0ppm	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	PID	0~1000ppm	50ppm	100ppm	within 3ppm
Xylene (C₈H₁₀)	IR	0~100%LEL	15%LEL	50%LEL	1%LEL
Hydrogen Peroxide (H₂O₂)	Electrochemical	0~10ppm	1ppm	3ppm	0.1ppm
Nitrogen Dioxide (NO₂)	Electrochemical	0~20ppm	3ppm	5ppm	0.1ppm
Ethylene Oxide (C₂H₄O)	Electrochemical	0~30ppm	1ppm	2ppm	0.1ppm
Ethylene (C₂H₄)	Catalytic	0~100%LEL	15%LEL	50%LEL	1%LEL
Nitrogen Monoxide (NO)	Electrochemical	0~100ppm	25ppm	50ppm	1ppm
Hydrogen Fluoride (HF)	Electrochemical	0~5ppm	0.5ppm	1ppm	0.1ppm

Description Manual Specifications

Senko SI-301 Fixed Gas Detector attributes

100 ~ 1,000 ml (Normal 301 ~ 500ml / min)

Flow rate

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 0~500ppm 10ppm 15ppm 1ppm

Gas measuring Range

Oxygen, Carbon Monoxide, Sulfur Dioxide, Hydrogen, Hydrogen Sulfide and etc.

Detectible Gas

FND, gas concentration, flow rate, alarm, device faulty

Measuring Display

Low Alarm, High Alarm, Fault Alarm

Relay contact