INDUSTRIAL GAS DETECTING SYSTEMS
SENS-EX C/MA intelligent, addressable gas alarm system
- Dangerous gases, vapours and oxygen sensing
- Modern, intelligent microprocessor based instruments
- Reliable, high-quality semiconductor, chemical, catalytic, and infrared sensors, cell
- Digital, large LCD display
- Fully automatic system
- Four-level signalling loop, addressed transmitters
- Own fault and service indication to the interest of safety
- Up to 255 devices, 32 zones can be connected to scheme
- Onboard 4 programmable relay outs, external extendable relay outs
- Standard, certified equipments: ATEX, IECEx, ISO, NAT
- Long life, economical operation
SENS-Ex TG/A... hazardous area transmitters
- Dangerous gases, vapours: flammable, toxic and oxygen sensing
- Standard, certified equipments: ATEX, IECEx
- Explosion safe design (for ZONE1, ZONE2)
- ATEX, IECEx certified for Zone 1 / 2 hazardous area:
II 2G Ex d IIC T6 Gb (Ta= -40°C…+55°C); II 2G Ex d IIC T3 Gb (Ta= -40°C…+125°C) - Available in display or non-display versions
- Built in sensor: semiconductor, electrochemical cell, catalytic, IR
- Measuring range: vol%, LEL%, ppm
- Addressable or stand alone transmitters
- Output signals: RS485, 4-20mA, relay contacts
- Signals of more concentrations, self failure signal, maintenance signal
- Voltage free relay contacts for controlling
- Long life, economical operation
- Programmable alarms
SENS-EXC/D-S gas detecting systems
- Detecting methane, propane, butane and LPG gases with explosion proof transmitter
- Standard, certified equipments: ATEX, IECEx
- Explosion safe design (for ZONE1, ZONE2)
- ATEX, IECEx certified for Zone 1 / 2 hazardous area: II 2G Ex d IIC T6 Gb (Ta= -40°C…+55°C); II 2G Ex d IIC T3 Gb (Ta= -40°C…+125°C)
- Measuring range: LEL%
- Modern, intelligent automatic system
- Output signals: RS485, 4-20mA, relay contacts
- Signals of two concentrations, self failure signal, maintenance signal
- Voltage free relay contacts for controlling
- Possibility of relay output expansion
- Long life, economical operation
Application of the systems
The SENS-EX type of located gas detecting systems with remote transmitters are designed to detect the concentration of explosive, poisonous gases and vapours furthermore the oxygen and carbon dioxide in various places. The SENS-EX is also designed to control the ventilation, signaling and intervening equipment. In case of sensing the developing explosive or poisonous gases and vapours, the equipment - according to the concentration of the gas - has various signaling levels. Indicatory signals and voltage free relay contacts that are suitable for control the appropriate interventional units to prevent the possible accidents and catastrophe situations.
Application fields
Garage areas, multi storey car parks, office and shopping centres, apartment-houses, tunnels, gas boiler-houses, paint industry, warehouses, gas and petrochemical industries, chemical plants, cold storage plant, and other such establishments, where explosive or poisonous gases or vapours may evolve.
Sensible gases and vapours
| Name | Chemical formula | Gas density | Medical limit value (MAK value) |
100 LEL% | Measuring range |
|---|---|---|---|---|---|
| Acetilene | C2H2 | 0,907 | - | 2,5 v% | 1 – 100 lel% |
| Ammonia | NH3 | 0,59 | 20 ppm | 15 v% | 1 - 100 ppm |
| Ethane | C2H6 | 1,05 | 1000 ppm (ACGIH 2006) | 3,0 v% | 1 – 100 lel% |
| Ethylene | C2H4 | 0,97 | - | 2,7 v% | 1 – 100 lel% |
| Hydrogen | H2 | 0,07 | - | 4 v% | 1 – 100 lel% |
| i-Butane | C4H10 | 2,0 | 1000 ppm | 1,8 v% | 1 – 100 lel% |
| Hydrogen sulphide | H2S | 1,19 | 5 ppm | 4,3 v% | 1 – 100 ppm |
| LPG, Propane-Butane | C3H8-C4H10 | 1,8-2 | 1000 ppm | 2 v% | 1 – 100 lel% |
| Methane | CH4 | 0,6 | - | 5 v% | 1 – 100 lel% |
| Oxygen | O2 | 1,1 | - | - | 1 – 25 v% |
| Carbon monoxide | CO | 0,97 | 30 ppm | 12,5 v% | 1 – 300 ppm |
| Possible to detect other gases and vapours. Please in case of individual demand call for an offer! | |||||
