2UT-6K

Temperature indication through 2UT-6K

In operation, the 2UT-6K receives thermoelectric signals from temperature sensors and displays the measured value with two independent pointers. Each channel corresponds to its own engine line. This lets the crew compare the temperature condition of both engines during start, warm-up, takeoff, climb and cruise operation. The indicator does not amplify the signal by itself in the same way as an electronic unit. It works as a magnetoelectric logometer instrument connected into the temperature measurement circuit.

2UT-6K in Mi-8 and Mi-17 engine monitoring

The 2UT-6K is used on Mi-8 family helicopters, including Mi-17 versions, as part of the engine temperature monitoring system. It is normally connected with thermocouples, transition units, amplifiers and wiring assemblies used in the exhaust gas temperature measurement chain. In the same system group, related equipment may include 2UE-6B Series 2 amplifiers, PK-6 transition units and thermocouples such as T-93 type or equivalent sensors. The exact configuration depends on the helicopter modification and installed engine equipment.

Instrument design of 2UT-6K

The indicator is built as a dual-pointer cockpit instrument with two measurement channels in one case. The scale allows the crew to read exhaust gas temperature over the operating range, with coarse and fine indication depending on the instrument version and aircraft panel configuration. The measurement circuit is powered by the thermocouple electromotive force, while illumination is supplied separately from the aircraft lighting circuit. Because of this, loss of lighting does not necessarily mean loss of measurement, and loss of indication is not always an instrument fault.

Identification and ordering of 2UT-6K

Before ordering 2UT-6K, the marking should be checked against the aircraft parts catalog, instrument panel layout and temperature measurement system documentation. Similar temperature indicators may differ by scale, lighting voltage, connector type or approved installation. For correct selection, provide the helicopter type, installed measurement system, sensor type and a photo of the instrument data plate if available. The product is also known under alternative designations 2UT-6K and 2УТ-6К.