SENKO SI-100 : Explosion Proof Gas Detector
SI-100 is an IEC Ex fixed gas detector installed where potential gas hazard occur to measure and monitor oxygen, toxic gas and combustible gas. Through the LCD display the SI-100 shows the concentration of gases present and the status of the unit in real time. It can be connected to a controller with a standard 4-20mA analog output communication. With magnetic buttons a Hot Work permit not required for calibration with no need to open the device.
- Low Cost and Reliable
- IP65 Waterproof
- Large Digital LCD
- No Hot Work permit required
- Australian Certificate of Calibration
Locally Technically Supported by Gas Detection Australia
Related Products
| Battery Room Monitoring | The SI-100C and a range of associated Gas Detection Australia controllers can be used in battery room gas detection to detect hydrogen in battery rooms and sound alarms. The battery room gas detection systems comprise of a hydrogen gas sensor SI-100C and a gas sensor control unit. The Gas Detection Australia control unit GDA 4020 or GDA 4011 is situated external to the battery room to display the gas concentrations and the alarm status. The battery room gas detection system can then be interfaced to extraction fans, sounders or other apparatus. For smaller battery charging rooms the standalone GDA 40126 can provide an integrated sensor and controller with outputs to drive extraction fans and sounders. Designed, Manufactured and Supported in Australia. |
| Sewage Treatment Plant Monitoring | The presence of Hydrogen Sulphide can be detected by using the Gas Detection Australia GDA 2529 gas sensor to detect leaks of Hydrogen Sulphide and evoke deodorisation plant. The SI-100C gas sensor can be used to monitor for leaks of LEL levels of methane gas. In digester applications Carbon dioxide can be detected using the GDA 4350 Designed, Manufactured and Supported in Australia. |
| Hazardous Areas (IEC Ex Certified) | IEC Ex approved gas detectors and sensors for use in Zone 1 and Zone 2 areas within Australia for both Toxic and Flammable gases. Hazardous Areas are areas in which an explosive gas atmosphere is or may be expected to be present, in quantities such as to require special precautions for the construction installation and use of equipment construction, installation and use of equipment. Hazardous areas are classified into 3 zones based upon the frequency of the occurrence and duration of an explosive gas atmosphere, as follows:
As per IEC60079-10-1 and AS/NZS 60079.29.2:2016 |
| Specification Name | Specification Value |
|---|---|
| Detectable Gases | See Ordering Information for the full list of gas types and specifications |
| Accuracy of Reading | ±3% / Full scale |
| Operation mode display | LCD alarm display, LCD Backlight, Indicator LED, Buzzer (90dB at 10cm) |
| Measuring value display | Digital LCD Display (4-digit) |
| Parameter control | Front 3 magnetic switch (calibration, maintenance, alarm setting) |
| Power Requirements | 10 ~ 36 VDC (24VDC normal) |
| Power Consumption | 600 mA |
| Output Types | Analog: 4-20mA & 2x Relays. Digital: RS-485 (Option) |
| Connection | 3 way plug connector |
| Wiring | Power + Signal cable : 3-wire 1.5sq (AWG16) / 2,500m max |
| Conduit connection | NPT 3/4" (2way) |
| Alarm Stages | Alarm value(1, 2 alarm) | Alarm time (instant & delay) 1~30 min | Alarm dead band | Relay output on/off |
| Operating Temperature | -20℃ ~ +55℃ |
| Operating Humidity | 5% to 95% RH(Non-condensing) |
| Dimensions | 150 (W) x 165 (H) x 110 (D) mm |
| Enclosure Material | Aluminium, Stainless Steel (STS304) |
| Weight | 1.9kg |
| Enclosure Rating | IP65 |
| Approval | Ex d IIC T5 (IECEx), CE EMC, ATEX, TR CU, CPA, CNEx, Inmetro, PESO |
| Warranty | 24 months from date of dispatch |
| Calibration Requirement | Every year with 6 monthly functional tests if sensor operated at SATP |
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SENKO SI-100 Fixed Gas Detector
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|---|---|---|---|---|---|---|
| Part Number | Gas | Sensor Technology | Range | Resolution | Sensor life time | |
| SI-100-001 | Oxygen (O₂) | Electrochemical | 0-30% Vol | 0.1% Vol | > 18 Months | |
| SI-100-002 | Carbon Monoxide (CO) | Electrochemical | 0-500 ppm | 1 ppm | > 2 Years | |
| SI-100-003 | Sulfur Dioxide (SO₂) | Electrochemical | 0-20 ppm | 0.1 ppm | > 2 Years | |
| SI-100-004 | Hydrogen (H₂) | Catalytic | 0-100% LEL | 1% LEL | > 5 Years | |
| SI-100-005 | Hydrogen (H₂) | Electrochemical | 0-1000 ppm | Within 5 ppm | > 2 Years | |
| SI-100-006 | Hydrogen Sulfide (H₂S) | Electrochemical | 0-100 ppm | 1 ppm | > 2 Years | |
| SI-100-007 | Hydrogen Sulfide (H₂S) | PID | 0-50 ppm | 0.1 ppm | > 6 Months | |
| SI-100-008 | Hydrogen Peroxide (H₂O₂) | Electrochemical | 0~10ppm | 0.1ppm | > 2 Years | |
| SI-100-009 | Combustible | Catalytic | 0-100% LEL | 1% LEL | > 5 Years | |
| SI-100-010 | Combustible | IR | 0-100% LEL | 1% LEL | > 2 Years | |
| SI-100-011 | Ammonia (NH₃) | Electrochemical | 0-100 ppm | 1 ppm | > 2 Years | |
| SI-100-012 | Acetylene (C₂H₂) | Catalytic | 0-100% LEL | 1% LEL | > 5 Years | |
| SI-100-013 | Ethanol (C6H5OH) | Catalytic | 0-100% LEL | 1% LEL | > 5 Years | |
| SI-100-014 | Ethylene (C₂H4) | Catalytic | 0~100%LEL | 1% LEL | > 5 Years | |
| SI-100-015 | Ethylene Oxide (C2H4O) | IR | 0-100% LEL | 1% LEL | > 2 Years | |
| SI-100-016 | Ethylene Oxide (C2H4O) | Electrochemical | 0~30 ppm | 0.1 ppm | > 2 Years | |
| SI-100-017 | Toluene (C6H5CH3) | IR | 0-100% LEL | 1% LEL | > 2 Years | |
| SI-100-018 | Toluene (C6H5CH3) | Catalytic | 0-100% LEL | 1% LEL | > 5 Years | |
| SI-100-019 | Acetic Acid (CH3COOH) | Catalytic | 0-100% LEL | 1% LEL | > 5 Years | |
| SI-100-020 | Methane (CH4) | IR | 0-9999 ppm | Within 20 ppm | > 2 years | |
| SI-100-021 | Methane (CH4) | IR | 0-100% LEL | 1% LEL | > 2 years | |
| SI-100-022 | Methane (CH4) | IR | 0-100% Vol | 1% Vol | > 2 years | |
| SI-100-023 | Methanol (CH3OH) | Catalytic | 0-100% LEL | 1% LEL | > 5 Years | |
| SI-100-024 | Chlorine (CL₂) | Electrochemical | 0-5 ppm | 0.1 ppm | > 2 Years | |
| SI-100-025 | Chlorine (CL₂) | Electrochemical | 0-20 ppm | 0.1 ppm | > 2 Years | |
| SI-100-026 | Carbon Dioxide (CO₂) | IR | 0-2000 ppm | Within 3 ppm | > 2 Years | |
| SI-100-027 | Carbon Dioxide (CO₂) | IR | 0-5000 ppm | Within 3 ppm | > 2 Years | |
| SI-100-028 | Carbon Dioxide (CO₂) | IR | 0-5% Vol | 0.1% Vol | > 2 Years | |
| SI-100-029 | Hydrogen Chloride (HCI) | Electrochemical | 0-10 ppm | 0.1 ppm | > 2 Years | |
| SI-100-030 | Volatile Organic Compound (VOC) | PID | 0-1000 ppm | Within 3 ppm | > 6 Months | |
| SI-100-031 | Xylene (C8H10) | IR | 0-100% LEL | 1% LEL | > 2 Years | |
| SI-100-032 | Nitrogen Monoxide (NO) | Electrochemical | 0~100ppm | 1ppm | > 2 Years | |
| SI-100-033 | Nitrogen Dioxide (NO₂) | Electrochemical | 0~20ppm | 0.1ppm | > 2 Years | |
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Accessories |
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| Part Number | Image | Description | ||||
| SI-100-### S |  |
SI-100-### Replacement Sensor Head |
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| SI-100 Magnetic Bar | Magnetic bar for controlling SI-100 Units | |||||
| SI-100 Filter | Replacement sintered metal filter | |||||
| SI-100 Plug | PT 3/4 | |||||
| SI-100 Calibration Cap | Calibration Cap for SI-100 & SI-100C | |||||
Notes
- Flammable Catalytic Sensor Models
- Poisoning: some compounds will decompose on the catalyst and form a solid barrier over the catalyst surface. This action is cumulative and prolonged exposure will result in an irreversible decrease in sensitivity. The most common of these substances are: volatile lead or sulphur containing compounds; silicones; phosphates.
- Inhibition: certain other compounds, especially hydrogen sulphide and halogenated hydrocarbons, are absorbed or form compounds that are absorbed by the catalyst. The resultant loss of sensitivity is temporary and in most cases a sensor will recover after a period of operation in clean air
- Electrochemical Sensor Models
- Poisoning: Senko sensors are designed to operate in a wide range of harsh environments and conditions. However, it is important that exposure to high concentrations of solvent vapours is avoided, both during storage and operation.
- Oxygen Electrochemical Sensor Models
- Poisoning: Acid gases such as CO₂ and SO₂ will be absorbed by the electrolyte and tend to increase the flux of oxygen to the electrode. This gives an enhanced oxygen signal of approximately 0.3% of signal per 1% CO₂. Senko oxygen sensors are not suitable for continuous operation in concentrations of CO₂ above 25%.
AVR 20 : Alarm Flasher and Sounder
This sounder/flashers operates at 24VDC. The sounder can be permanently disabled so that unit acts as a flasher only. These units are designed for internal use. These are available in Red or Amber.
IS-A105N : Intrinsically Safe Alarm Sounder
The IS-A105N is a high output, 105dB alarm sounder. Suitable for all intrinsically safe signalling applications including fire, security and process control.
IS-L101L : Intrinsically Safe LED Beacon
The IS-L101L unit is an intrinsically safe field mounting beacon which provides a bright
flashing warning signal.
GDA 40125 : Toxic / Oxygen Gas Detection Controller
The GDA 40125 Gas Detection Controller is a standalone gas detector unit with inbuilt display, sounder, flasher, relays and alarm driver. Available in the full range of GDA 2500 series electrochemical sensors which are temperature compensated and easily replaceable.
Designed, manufactured and supported locally in Australia.
GDA 40127 : Carbon Dioxide Gas Detection Controller
The GDA 40127 Carbon Dioxide Gas Detection Controller is a standalone gas detector unit with inbuilt display, sounder, flasher, relays and alarm driver using an non dispersive infra red sensor.
Designed, manufactured and supported locally in Australia.
SENKO SI-100C : Explosion Proof Gas Sensor
SI-100C is a IEC Ex explosion proof gas sensor ready to installed hazardous and non-hazardous areas to prevent gas hazards caused oxygen depletion, toxic gas or combustible gas. Available to detect over 25 different gas types, see Ordering Information for details.
