MU-616 Series 1

Passport specifications for Series 1

The supplied passport confirms a working angle of ±30±2° and maximum wiper travel of ±60±2°. Angular measurement error under normal conditions is not more than ±1.5% of the full working range, while calibration-characteristic non-linearity is not more than ±2% of the complete measuring range. The sensor uses 6±0.5 V or 12±0.5 V DC. Resistance of each potentiometer is specified as 700 Ω with a ±25% tolerance. Starting torque is 70–150 gf·cm and product mass is 0.15±0.01 kg.

The documented operating-temperature range is −60 to +150 °C. Short exposure to +200 °C is permitted for 10 minutes. These passport values replace the preliminary family data previously shown on the page, including 5 V supply, −55 to +85 °C temperature and mass up to 0.2 kg. The passport also records 0.309 g of gold and 0.259 g of silver contained in the product.

A supply comparison should use the complete parameter set, not appearance or angular range alone. Series 1 is identified by its 6 V or 12 V supply options, resistance tolerance for each potentiometer, cable assembly and mating-connector execution. The passport values belong to the documented MU-616 Series 1 execution and distinguish it from the base MU-616, whose documentation specifies different electrical tolerances.

Two-channel operation and signal inspection

Two potentiometric channels operate inside the sensor. Shaft rotation moves the contacts across the resistive tracks so each channel produces a value corresponding to the angular position. The arrangement allows connected equipment to receive parallel readings and check their consistency. Incoming inspection should cover smooth movement, binding, progressive output from both channels, resistance, braided cable condition, connector condition, seals and the mounting base.

The passport specifies a warranty operating time of 750 flight hours and a guaranteed life of 150,000 wiper movements along the potentiometer winding at a movement frequency not exceeding 2 Hz. These figures apply to the documented execution and do not replace inspection of the condition and records of the individual unit offered for supply.

Confirmed aircraft-system references

Catalogue records associate MU-616 Series 1 with the Mi-8 and Ka-32 helicopter families, the Su-30MKI, and MSRP equipment listed for the Il-76. Matching designation records confirm that the sensor is used in several aviation environments, but they do not establish identical mounting, cable execution or calibration. Installation must be checked against the passport, wiring diagram, illustrated parts catalogue and maintenance documentation for the specific aircraft.

Identification and related products

An enquiry should state MU-616 Series 1, the Cyrillic form MU-616 seriya 1 and document reference IVKL.401261.002. The new gallery photographs show MU-616 and MU-616 Series 1 together with their cable assemblies, connectors and potentiometer units. They help compare external execution but do not demonstrate interchangeability. The Mi-8/Mi-17 monitoring and auxiliary equipment category also contains related products: MU-616, MU-615A Series 1, MU-615A, MP-95 ±1.5. These are associated items within one functional group, not automatic substitutes.