KVARTA Control System of Parameters

The system is designed for:

  • automatic continuous measurement of environment level and temperature in storage tanks;
  • computation (depending on the model variants) of:
    • amount of product in each storage tank;
    • total amount of product in tank battery;
    • void space in each storage tank and in tank battery;
    • product weight in each storage tank and tank battery;
    • weight of vapour phase in each storage tank and tank battery;
    • product level change rate;
    • expected filling (emptying) time of storage tank;
  • warning about:
    • minimum and maximum alert level;
    • maximum level of produced water;
    • interface level (stratification);
    • upper level of measured environment;
    • unauthorized alteration of controlled levels;
    • temperature variation in controlled environment (layer-by-layer or averaged by height).

      The system is comprised of:

    • measuring converter unit (MCU);
    • base unit (BU);
    • PC-based controller;
    • cable communication line between MCU and BU;
    • uninterruptible power supply (UPS).

    Explosion-proof design: 1ExibIIВТ5 for MCU and ExibIIВ for BU (Certificate of Conformity No. ТС RUС-RU.МЕ92.B00408 to requirements of Technical Regulations of the Customs Union ТР ТС 012/2011).

    Employment of the same cable line for power supply, control and transmission of probing and return data signals.

    Projection and warning alarm for prevention of controlled environment overflow.

    Kvarta Control System is manufactured as per technical specifications AGTS.407626.003 TU.

    System functions:

    monitoring of parameters of petroleum products (petroleum, gasoline, oil) and liquefied gases (propane, butane, ammonia).

    System fields of application:

    • management of process equipment;
    • warning alarm;
    • extraction of petroleum products;
    • storage of petroleum products and liquefied gases;
    • transportation of petroleum products and liquefied gases;
    • refining of petroleum products;
    • storage in tank farms and oil terminals.

Main specifications

Measurement range:
liquid medium level 0.4—30 m
granular medium level 2.5—22 m
Maximum permissible intrinsic errors of level measurement channel within the measurement ranges:
up to 10 m not more than ±3 mm
10—20 m not more than ±5 mm
20—30 m not more than ±7 mm
Resolution capability 2 mm
Maximum permissible intrinsic errors of temperature measurement channel within the following ranges:
–10 ÷ +85 °С not more than ±0.5 °С
–55 ÷ –10 °С not more than ±2 °С
85–125 °С not more than ±2 °С
Temperature operational range:
BU 15—35 °С
MCU –30 ÷ +60 °С
System power supply AC mains, rated voltage 220 (+22, –33) V, frequency 50 ± 5 (60) Hz
Consumed power:
without PC not more than 40 VA
with PC not more than 500 VA
Number of monitored storage tanks per one BU up to 8
Length of cable communication line from each storage tank to the control post not more than 700 m

Контролируемые параметры:

direct measurements level, temperature
indirect measurements volume, weight
Controlled parameters:
direct measurements level, temperature
indirect measurements volume, weight
Technical features and advantages:
maximum accuracy of level measurement 3 mm
accuracy of temperature measurement 0.5 °С
length of measurement sensors (tank height) up to 30 m
distance from PC to measurement sensors up to 700 m
MCU protection class according to GOST 14254 – IP67