Flammable gas detection for demanding industrial sites
Omniguard® model 1100 Flammable Gas Detector
The Omniguard model 1100 gas detector detects and measures flammable gases in industrial applications such as refineries, drilling and production platforms, gas turbines, chemical plants, fuel loading facilities, compressor stations, wastewater treatment facilities, LNG/LPG processing and storage facilities, transportation facilities, and manufacturing processes.
- Flammable gas detection
- Wide range of detectable gases
- HART rev 7 communication
- 4-20 mA output signal
- Easy field calibration and maintenance
Specifications
Key gas detection and installation specifications for Model 1100
General specifications
| Measuring type | Diffusion. |
| Measuring method | Catalytic cell, thermal conductivity cell, or semiconductor cell. |
| Detectable gases | Flammable gases including LNG, LPG, H2, methane, butane, propane, and other specified gases. |
| Measuring range | Depending on gas. |
| Accuracy | +/-3% full range. |
Performance
| Response time | Typical 90% of range in less than 15 seconds. |
| Zero drift | +/-2% full range. |
| Long-term stability | Based on proven sensor technology with microprocessor-controlled functionality. |
Electrical
| Input voltage | 18-31 VDC, nominal 24 VDC, ripple voltage less than 1 V. |
| Power consumption | Max. wattage 4.8 W at 24 VDC; max. current 200 mA at 24 VDC. |
| Interfaces | Analog 4-20 mA current interface and HART rev 7. |
Operating limits
| Operating temperature | Transmitter -40C to +80C. |
| Operating humidity | 5-99% RH non-condensing. |
| Pressure | 90-110 kPa. |
| Max air velocity | 6 m/s. |
Mechanical
| Dimensions (H x W x D) | 136 x 166 x 110 mm. |
| Weight | 1.5 kg aluminum; 3.1 kg stainless steel. |
| Conduit entry | 3/4-14 NPT or M20-1.5. |
| Housing materials | Aluminum or stainless steel. |
Configuration
| Model | 1100 |
| Product type | Flammable gas detector |
| Product type definition | Gas Detectors (gas) |
| Ordering format | [MODEL]-X X X X X X X |
| Housing material/conduit entry | 0 – Aluminium, 3/4-14 NPT (white); 1 – Stainless steel, 3/4-14 NPT; 2 – Aluminium, M20-1.5 (white); 3 – Stainless steel, M20-1.5 |
| Detectable gas | 0 – CH4 (Methane); 1 – C4H10 (Buthane); 2 – C3H8 (Propane); 3 – H2 (Hydrogen); 9 – Other, please specify |
| Measuring method | 0 – Semiconductor cell; 1 – Thermal conductivity cell; 2 – Catalytic cell |
| Measuring range | 0 – 0-2000 ppm (C4H10); 1 – 0-100% Vol (H2); 2 – 0-100% LEL (CH4, C4H10, C3H8, H2); 9 – Other, please specify |
| Output signal | 0 – 4-20 mA, and HART rev 7 |
| Configuration | 0 – Standard; 1 – Remote option |
| Approvals | 0 – IECEx, ATEX, UL, SIL2, CE |
Why Model 1100
Model 1100 product highlights
Flammable gas coverage
Detects flammable gases including LNG, LPG, hydrogen, methane, butane, propane, and other specified gases.
Proven sensor technology
Built on established sensor technology for fast response, measuring accuracy, and long-term stability.
HART communication
Standard HART rev 7 communication supports integration, setup, and diagnostics.
Advanced diagnostics
Self-test and diagnostics support reliable field operation.
Smart calibration
Microprocessor-controlled programming and simple calibration make the detector easy to use and maintain.
4-20 mA output
Standard analog output supports quick installation and operation.
Rugged enclosure
Weather- and flame-proof enclosure supports indoor and outdoor industrial applications.
Low ownership cost
Designed for reliable field operation with straightforward maintenance.
Approvals
Approved for hazardous-area use, including IECEx, ATEX, UL, SIL2, and CE.
Accessories
Mounting, shields, and add-ons to fit your installation environment.
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Swivel mount for all Aluminum 660/760/860 Flame detectors
Material: Stainless Steel 304
Part number: 20856 -
Swivel mount for all Stainless Steel 660/760/860 Flame detectors
Material: Stainless Steel 316
Part number: 24784 -
Pole mount 2″ for Swivel mount 20856
Material: Stainless Steel 316L
Part number: 26803 -
Pole mount 2″ for Swivel mount 24784
Material: Stainless Steel 316
Part number: 26807 -
Weather shield for all 660/860 Flame detectors
Material: Stainless Steel 316L
Part number: 23546 -
Air shield for all 660/860 Flame detectors
Material: Delrin, Sintered Brass
Part number: 8001023 -
Air shield for all 660 High-temp Flame detectors
Material: Aluminum, Sintered Brass
Part number: 26489 -
Test Gun for all 660 Flame detectors
115VAC, USA, Canada
Part number: 43808-2 -
Test Gun for all 660 Flame detectors
100-240VAC
Part number: 43808-3 -
Test Gun for all 660/860 Flame Detectors
Part number: 540
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Test Gun for all 660/760/860 Flame Detectors
Part number: 545
Applications
Typical installation environments for Model 1100
Ready to configure Model 1100?
Use the configurator to choose the right version and options for your site, then request a quote.