Combustible Gas Detector
Combustible Gas Detector
Combustible Gas Detector measures and indicates the amount of certain gases in air using different technologies. It is employed to avoid any toxic exposure and sudden fire in different sectors for safety purposes. It is designed as portable as well as stationary units to work by signifying the levels of combustible gases with audible and visible indicators. It is well equipped with modern alarms, lights as well as a combination of signals to detect any gas leak. This multifunctional device is also capable of detecting varied gases at once in industrial plants, fumigation facilities, refineries, pharmaceutical manufacturing, paper pulp mills, aircraft, ship-building facilities, waste-water treatment facilities, etc. It is very easy to install, use and operate ensuring to provide safety to workplace and workers.Â
Features :
- Provides a fast and reliable output by using Electro Chemical / Pellister Sensor Technology.
- Optimized for detection of smallest leak of Oxygen, -Toxic and Combustible Gases.
- Highly resistant to poisoning and etching.
- Capable of detecting down to PPM, %LEL & %V/V.
- Digital display of Gas Concentration on LED Display
- Standard 4-20mA signal output with configurable range.
- Easy handling and programming with 3 keys for Weatherproof Models.
- Non - Intrusive programming for Flameproof model using Magnetic pen.
- Password protected programming with passwordchanging facility.
- One man Auto Software Gas Calibration.
- Optional Alarm relay contacts with two configurable Alarm levels & one Relay for fail safe relay.
- Optional STEL and TWA set points can be configuredfor Toxic Gases.
- Optional RS-485 communication port with MODBUSRTU Protocol.
Approval & Compliance :
-
Approval & Compliance for Flameproof : Certified to Ex-d IIA, IIB, T6, IP66
Standard Compliance :
- IS/IEC 60079-0 : 2004
- IS/IEC 60079-1 : 2007
- IS/IEC 60529 : 2001
Applications :
- Gas Metering skid
- Gas Cylinder Bank
- Oil & Gas Industries
- Gas Pipeline Project
- Refineries
- Cold Storage
- Sewage Plants
- Fertilizers Plants
- Stack Monitoring
- Chlorination Plant
- Ambient Monitoring
- Pulp & Paper Plants
- Gas Metering Station
- Burner / Furnace Areas
- Bullet Yard / Storage Yard
- Chemical Processing Plant
- Acid Alkalizes & Dyes Mfg. Plants
- Offshore Drilling & Processing Platforms
- Heat Treatment Plants
- Chemical Storage Area
- Control Atmosphere
- Power & Industrial Plants
- Coal Mine and Confined Area
- Chemical & Petrochemical Plants
- Automotive Industries / Paint Shops
Technical Specifications :
General :
| Detection Method | Electrochemical / Catalytic Bead Pellistor /Solid State |
| Gases Detected | Oxygen / Toxic / Combustible / VOC (Please select from the table below). |
| Display | 2-Line, 4-Digit 8 mm (H) Seven Segment LED Display 8 LEDs to indicate status of instrument |
| Control Action | Two independent Alarm set points with Latch Non-latch facility. |
| User selectable Hysteresis and Logic option. | |
| Configurable STEL and TWA set points for Toxic Gases (optional). | |
| Setting | By using 3 Keys on front panel for Weatherproof Model |
| By using Magnetic pen for Flameproof model |
Performance :
| Accuracy | ±2% of Full Scale. |
| Response Time | T20 < 18 Seconds |
| T50 < 22 Seconds | |
| T90 < 40 Seconds | |
| Start-up Time | Less than 30 Seconds. |
Electrical :
| Supply Voltage | 18 to 36 VDC, Typically 24VDC |
| Power Consumption | Less than 3.6 Watts |
| Cable | 3 Wires (1.5mm²) Flexible or Armoured Shilded Cable |
Weatherproof Housing :
| Protection Class | IP-65 |
| Cabinet Material | Polycarbonate, grey colour |
| Cable Entry | Thermoplastic cable gland (IP 68) |
| Dimension | 155mm (H) x 100 mm (W) x 55 mm (D) - (1 Glands) |
| 155mm (H) x 120 mm (W) x 55 mm (D) - (2 Glands) | |
| Mounting | Wall Mounting / Stand Mounting / Pipe Mounting |
| Weight | Approx 500 Grams |
Output Signal :
| Standard | 4-20mA Current Output with configurable range selection. |
| Optional | Three SPDT Relays (one for FailSafe and Two for Alarm indication) of rating 2A/120VAC, 2A/24VDC. |
| Optional | RS-485 Communication port with MODBUS RTU protocol. |
Error Monitoring :
- During Sensor Break / Open, the Display shows 'SENSOR OPEN' & 4-20mA output goes down to 3.7mA for Combustible gases only.
- During Over range, the Display shows 'OVER RANGE' & 4-20 mA output goes up to 21mA
Environmental :
| Operating Temperature | -15°C to +50°C |
| Storage Temperature | -10°C to +60°C |
| Humidity | Less than 95% Non-Condensing. |
Accessories (Optional) :
- CE certified 24 VDC Power supply.
- Canopy & Mounting stand.
- Gas Calibration Kit (0.5,1, 3,10)Liter.
- Hooter Cum Flasher.
- Remote Control for programming.
- Gas Sampling & Conditioning System.
- RS-485 to USB OR RS-232 convertor
- PC Based SCADA Software, Modem
Flameproof Housing :
| Protection Class | IP-66 for Gas Gr. IIA, IIB & IIC, CMRI (CIMFR) approved Enclosure, CCOE (Optional). |
| Cabinet Material | Cast Aluminium alloy, LM-6 |
| Cable Entry | Double compression cable gland (Ex-Proof), ¾''ET-type |
| Dimension | 175mm(H)x205mm(W)x120mm(D)-(1Glands) |
| 175mm(H)x205mm(W)x120mm(D)-(2Glands) | |
| Mounting | Wall Mounting / Stand Mounting / Pipe Mounting |
| Weight | Approx 2.0 Kg |