TST-282S

TST-282S thermoelectric thermometer for engine gas temperature

TST-282S is an aircraft thermoelectric temperature measuring set used for remote measurement of average exhaust gas temperature in aircraft engines. The system provides the flight crew with temperature data required for monitoring the thermal condition of the powerplant. It is used to control engine operating modes and help prevent turbine overheating. The system works through thermocouples installed in the gas flow and a cockpit indicator that displays the measured temperature.

Exhaust gas temperature measurement through TST-282S

The measuring principle is based on thermoelectromotive force generated by thermocouples when their hot junctions are heated by exhaust gases. The signal from the thermocouples is transmitted to the measuring instrument, where it is converted into a temperature reading. The system measures engine gas temperature remotely, so the cockpit instrument does not contact the gas flow directly. Correct indication depends on the condition of the thermocouples, wiring, connection block, indicator and aircraft power supply.

TST-282S with T-82K thermocouples

The basic set includes T-82K thermocouples installed in the engine exhaust gas path. These sensors generate the input signal used by the temperature indicator. The thermocouple circuit is important for accuracy, because poor contact, damaged wires or incorrect connection can affect the displayed value. The system also includes connection and mounting elements used to integrate the thermocouples with the onboard measuring circuit. In maintenance, the thermocouples and indicator should be checked as one temperature measuring chain.

Aircraft application of TST-282S

TST-282S is used on helicopters and aircraft equipped with compatible gas temperature monitoring systems. Typical applications include Mi-8, Mi-17, Mi-171, Mi-172, Ka-32 and Tu-134 platforms, depending on aircraft configuration. The system may be used with aircraft engines where exhaust gas temperature is one of the main parameters for safe operation. A digital modification, TST-282S-Ts, may be used in some later configurations. Exact applicability should be confirmed through the aircraft and engine documentation.

Identification and ordering of TST-282S

Before ordering, the complete set composition and modification should be checked. The system may include the TST-2 indicator, T-82K thermocouples, plug, connection block, tips, contact screw and spare hardware. The digital version may use the TST-2-Ts indicator. For correct selection, provide the aircraft type, engine type, installed temperature measuring system, required set composition and photos of the indicator scale or thermocouple markings. The product is also known under alternative designations TST-282S, TST-282S-Ts and ТСТ-282С.

Product Type: Aircraft thermoelectric temperature indicator / thermometer set
Function: Remote measurement and indication of average aircraft engine exhaust gas temperature
Application / Where Used: Engine exhaust gas temperature monitoring systems
System / Installation Area: Aircraft engine instrumentation / exhaust gas temperature measuring circuit
Compatible Aircraft / Equipment: Mi-8, Mi-17, Mi-171, Mi-172, Ka-32, Tu-134, depending on configuration
Associated Engines: TV3-117 and similar aircraft engines, depending on installation
Measuring Principle: Thermoelectromotive force from thermocouples heated by exhaust gases
Input Signal Type: DC millivolt signal from thermoelectric converter / thermocouple
Basic Set Components: TST-2 indicator, 1 pc; T-82K thermocouples, 2 pcs; plug 9M3.645.000-1, 1 pc; connection block 0M24.69.229, 1 pc; assembled tips 8946176, 2 pcs; tips 8411097, 2 pcs; contact screw 8610931-T, 1 pc; spare screws and washers
Digital Version Components: TST-2-Ts indicator, where applicable
Measurement Range: 0–1200 °C
Main Error: Not more than ±10 °C in operating temperature range
Scale Division: 20 °C for analog TST-2 version
Power Supply: 27 V DC; aircraft operating range 24–29.4 V DC
Current Consumption: Not more than 0.15 A
Operating Temperature Range for Indicator: −60 to +60 °C
Vibration Resistance: Up to 300 Hz, acceleration up to 5 g
Linear Acceleration Resistance: Up to 6 g
Indicator Case Diameter: 80 mm aviation flange
Indicator Weight: Not more than 0.85 kg
Alternative Designations: TST-282S; TST-282S-Ts; TST-2; TST-2-Ts; ТСТ-282С; ТСТ-282С-Ц
Technical Documentation: Product passport and aircraft engine instrumentation documentation available

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Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.