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Previous Supplies
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SME TEC Ltd. has been manufacturing GSM gas detectors for several years.
Below one can see examples of integrated solutions based on GSM and successfully operated at the facilities of the largest oil field of oil companies in Russia and neighboring countries.
GSM gas detectors are used at oil and gas facilities including main pipelines as well as chemical, petrochemical, oil refinery and other branches of industry.
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Our Customers
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NK LUKOIL
NK ROSNEFT
OAO GAZPROM
OAO VOSTOKGAZPROM
OAO GAZPROMNEFT
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OAO SIBUR HOLDING
OAO RUSSNEFT
OAO NOVATEC
IMPERIAL ENERGY
OAO SURGUTNEFTEGAS
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OAO SLAVNEFT
OAO TNK-BP HOLDING
OAO ANK BASHNEFT
OAO Eastern Transnational Company
OOO Irkutsk Oil Company
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GSM-05 External Connection Diagram
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GSM-03 External Connection Diagram (Phoenix Contact)
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EXAMPLES OF GSM APPLICATION
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Gas contamination control system based on GSM-05 for polymerization unit for polypropylene production
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Basic Functions
- Continuous monitoring of hazardous concentrations of vapors of flammable gases and fluids and their mixtures of IIA, IIB, IIC categories and Т1, Т2, Т3, Т4 groups as per GOST 51330.5-99, GOST Р51330.11-99 in explosion hazardous areas of premises of all classes and outside facilities and open spaces as per Chapter 7.3 of PUE, using thermal chemical technique with temperature ranges from minus 60 to plus 50 °С
- Mandatory recording of gas contamination accidents
- Generating two alarm thresholds for each line, alarm level for each is to be setup by the user within ranges from 0 to 50% of lower inflammability level
- Generating analogue signals (4-20) mA proportional to the gas concentration value in % of lower inflammability level The load connected to the current output of the alarm unit can not exceed 350 Ohm.
- Issue of control digital signals into external circuit for each control point, blocking up the power supply to the equipment in case the detector is switched off or issue of signals about the state of the detector into external circuit which will provide the switch on of emergency ventilation reaching a certain level of concentration (Threshold 1, Threshold 2).
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Parameters of Output Signals
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Output type
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Clean contact
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Supply voltage, V
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0 - 30
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Current
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Direct
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Load current by Ucom ≤ 30 V, not exceeding, mA
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100
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Two way contact
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Two positions
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Supply voltage, V
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0 - 250
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Current
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Direct/alternating
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Load current by Ucom ≤ 250 V, not exceeding, A
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1 (alternating current)
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Load current by Ucom ≤ 30 V, not exceeding, A
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1 (direct current)
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Gas contamination control system based on GSM-03 gas detectors within computing unit IVK MicroTEK for oil metering system (SIKN)
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GSM Functions within IVK MicroTEK
In case of actuating of fire alarm or gas contamination control system:
- When reaching Threshold 1of lower inflammability level - switching on the alarm and ventilation
- When reaching Threshold 2 of lower inflammability level - switching on emergency alarm and disconnecting all power consumers within SIKN.
Note - parameters for Threshold 1 and Threshold 2 are setup through the software within the range from 0 to 50% NKPV.
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