MU-616 Series 1

Heat-resistant MU-616 Series 1 sensor

MU-616 Series 1 is a heat-resistant, dual-channel potentiometric angular position sensor manufactured by PJSC Tambov Plant Elektropribor, Russia. It converts rotation of a connected mechanical element into two electrical position signals. The sensor is used in aircraft recording and monitoring equipment, while the exact mounting point, linkage and connected unit are defined by the documentation for the applicable aircraft. The supplied passport identifies the execution as MU-616 Series 1 and gives passport reference IVKL.401261.002 PS; the technical specification is identified as IVKL.401261.002 TU.

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 МУ-616 серия 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.

Product Type: Heat-resistant dual-channel potentiometric angular position sensor

Designation: MU-616 Series 1

Russian Designation: МУ-616 серия 1

Alternative Designations: MU-616 Ser. 1; MU 616 Series 1; MU616 Series 1; МУ-616 сер. 1; МУ 616 серия 1

Passport: IVKL.401261.002 PS

Technical Specification: IVKL.401261.002 TU

Manufacturer: PJSC Tambov Plant Elektropribor, Tambov, Russia

Function: Conversion of angular displacement into two electrical position signals

Number of Channels: 2 potentiometric channels

Working Angle: ±30±2°

Maximum Wiper Travel: ±60±2°

Measurement Error: Not more than ±1.5% of the full working range

Calibration Non-Linearity: Not more than ±2% of the full working range

Supply Voltage: 6±0.5 V or 12±0.5 V DC

Resistance of Each Potentiometer: 700 Ω ±25%

Operating Temperature: −60 to +150 °C

Short-Term Temperature: +200 °C for 10 minutes

Starting Torque: 70–150 gf·cm

Mass: 0.15±0.01 kg

Warranty Operating Time: 750 flight hours

Guaranteed Life: 150,000 wiper movements at a frequency not exceeding 2 Hz

Contained Precious Metals: Gold 0.309 g; silver 0.259 g

Confirmed Applications: Mi-8, Ka-32 and Su-30MKI; an Il-76 equipment list identifies the sensor for an MSRP system

Associated Components: Mechanical linkage, cable assembly, connector, measuring input and recorder of the applicable execution

Interchangeability: Not established; select MU-616 and MU-616 Series 1 by passport and wiring diagram

Country of Manufacture: Russia

Condition: New

Supplier Warranty: 6 months

Technical Documentation: IVKL.401261.002 PS passport, IVKL.401261.002 TU and applicable aircraft documentation

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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.