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Certified systems of automatic
temperature control of grain

Maximum of functions
Continuous monitoring and alarms, the ability to control from multiple locations, control the rate of temperature rise, and more will provide our temperature control system.

Grain storage temperature monitoring system TCC-02 type

Complex automated thermometry system intended for creation of integrated centralized grain temperature monitoring system in all silos of elevator or granary. All temperature data are passed to granary operator computer by network on basis of RS-485 interface.

Information about current status of all temperature cables, grain temperature and rate of temperature change is indicated on display in intuitive form by means of special software.

In addition the software ensures indirect monitoring of grain level in silos, necessary for technology need of granary.

Mandatory requirement for temperature control system is simplicity of integration with industrial automation and control systems.

Thermometry system is entirely integrated with industrial control system and ensures of all necessary data communications by way of OPC server, embedded in our software.

Thermometry cable consists of pack of sensors allocated inside whole sheath from high density polyethylene with incorporated metal carrying rope. Thermometry cable has several temperature sensors installed at regular intervals. The sensors are connected in parallel according to three-wire diagram.

Information acquisition unit consists of metal case with: information acquisition module, protection and interface amplifier modules and glands for cable.

Программное обеспечение обеспечивает аварийно-предупредительную сигнализацию (далее - АПС) при возникновении следующих ситуаций:

Software ensures warning alarm when following situation appearance:

  • temperature value exceed critical set point for any of monitoring points;
  • rate of temperature change exceed critical set point for any of monitoring points;
  • temperature sensor failure;
  • connection line with thermometry cable break;
  • connection line with thermometry cable short circuit;
  • connection with information acquisition unit disappear;
  • information acquisition unit built-in ROM failure.

 Also software execute following functions:

  • recording of data base of all monitoring temperatures for last month with 30 minutes resolution;
  • rate of temperature change monitoring for all measuring points;
  • temperature change indication in form of graph for 6 hours, last day or month;
  • individual set points for critical temperature and rate of temperature increase for each silo;
  • possibility of printing for temperature dates as graphs or table;
  • export of measuring values into MS Excel for following processing.

Technical specifications of thermometry system TCC-02 type

Common

  • Temperature measurement range,°С:  -55…125
  • Max measurement error at range 0…85°С, °С:  ±0,5
  • Max measurement error at range -55…0°С, °С: ±2,0
  • Max measurement error at range 85…125°С, °С: ±2,0
  • Temperature measurement resolution, °С: 0,1
  • Service life, year: 12

 

Thermometry cable TP type

  • Length, m: 4…30;
  • Sensor quantity: 1…32;
  • Carrying rope buckling load, t: 2,0;
  • Power supply voltage, V: =5,0;
  • Current consumption max, mA: 60;
  • Environmental air operation temperature, °С: -40…125;
  • Max environmental humidity, %: 90;
  • Max vibration:
    • frequency, Hz:  ≤25;
    • amplitude, mm: ≤0,1;
  • Degree of protection: IP56;

 Information acquisition unit TCC-AU/01, TCC-AU/02 type

  • Quality of connected thermometry cables TC type - 16;
  • Connection interface - RS485;
  • Power supply - 24VDC or 220VAC;
  • Max. power consumption, W – 20;
  • Environmental air operation temperature, °С: -40…125;
  • Max environmental humidity, %: 90;
  • Max vibration:
    • frequency, Hz:  ≤25;
    • amplitude, mm: ≤0,1;
  • Degree of protection: IP56;