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Previous Supplies

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.

Our Customers

NK LUKOIL

NK ROSNEFT

OAO GAZPROM

OAO VOSTOKGAZPROM

OAO GAZPROMNEFT

OAO SIBUR HOLDING

OAO RUSSNEFT

OAO NOVATEC

IMPERIAL ENERGY

OAO SURGUTNEFTEGAS

OAO SLAVNEFT

OAO TNK-BP HOLDING

OAO ANK BASHNEFT

OAO Eastern Transnational Company

OOO Irkutsk Oil Company

GSM-05 External Connection Diagram

GSM-03 External Connection Diagram (Phoenix Contact)

 
 
 

EXAMPLES OF GSM APPLICATION

Gas contamination control system based on GSM-05 for polymerization unit for polypropylene production

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).

Parameters of Output Signals

  • Failure

 Output type

Clean contact

 Supply voltage, V 

0 - 30 

 Current

Direct

 Load current by Ucom ≤ 30 V, not exceeding, mA   

100 

  • Threshold 1, Threshold 2

 Two way contact

Two positions

 Supply voltage, V

0 - 250

 Current 

Direct/alternating

 Load current by Ucom ≤ 250 V, not exceeding, A

1 (alternating current)

 Load current by Ucom ≤ 30 V, not exceeding, A

1 (direct current)

 
 
 

Gas contamination control system based on GSM-03 gas detectors within computing unit IVK MicroTEK for oil metering system (SIKN)

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.