IKD27DA-400-830

IKD27DA-400-830 pressure unit in aircraft systems

The IKD27DA-400-830 is an aircraft pressure measurement unit used in onboard control and monitoring circuits. It measures absolute air pressure and converts the measured value into an electrical output signal. This signal is then used by aircraft equipment that needs pressure data for regulation, monitoring, or correction. The unit is not an indicator and does not control an actuator directly. It supplies pressure information in electrical form to the equipment connected downstream.

Pressure conversion through IKD27DA-400-830

In operation, air pressure acts on the sensitive element inside the unit. The movement of this element is converted into a DC voltage signal proportional to the measured pressure. This is useful in systems where pressure must be processed automatically rather than read only by the crew. In helicopter installations, the signal can be used by automatic control circuits, altitude correction logic, or system monitoring equipment. If the output signal is incorrect, the fault may be in the unit, wiring, power supply, connector, or receiving equipment.

SPUU-52 system work with IKD27DA-400-830

The IKD27DA-400-830 is known from SPUU-52 movable control stops system materials. In that system, the pressure unit supplies pressure data to the control chain, while the temperature receiver P-1 / P-1Tr supplies temperature data and the DOS feedback sensor confirms movement of the stop. The BU-32 control unit processes these inputs and commands the actuator mechanism. Because the pressure unit is only one part of the chain, system troubleshooting should include the sensor signal, wiring, control unit, feedback path, and actuator movement.

Aircraft application of pressure unit IKD27DA-400-830

The unit is used in aviation systems where absolute air pressure is required as an electrical signal. Public references list IKD27DA-400-830 in Mi-171E equipment lists and in Mi-8 / Mi-17 related catalogs. It is also mentioned as part of SPUU-52 equipment used in helicopter control systems. Exact installation depends on the aircraft configuration and the system using the pressure signal. A similar IKD27 unit should not be selected only by appearance or by the general pressure-measuring function. The range and full designation must match the aircraft documentation.

Identification and ordering checks for IKD27DA-400-830

Before ordering, the marking on the installed unit should be compared with the aircraft parts catalog, system documentation, or maintenance manual. The product may appear as IKD27 DA-400-830, IKD27DA-400-830, or IKD27DA 400-830 in supply documents. In Russian documentation, the equivalent designation is ИКД27ДА-400-830. A clear request should include the aircraft type, system name, installation location, and a photo of the marking if available. The product is also known under alternative designation ИКД27ДА-400-830.

Product Type: Pressure measurement unit
Function: Measurement of absolute air pressure and signal conversion
Application / Where Used: Aircraft pressure measurement systems
System / Installation Area: Onboard instrumentation and control circuits
Compatible Aircraft / Equipment: Helicopter systems including Mi-171E
Working Medium: Air
Measured Pressure Type: Absolute pressure
Measurement Range: 400 to 830 mm Hg
Output Signal: DC voltage proportional to pressure
Operating Voltage: 27 V DC
Permissible Supply Voltage Range: 24 to 29.4 V DC
Minimum Operating Voltage: 18 V DC
Internal Generator Frequency: 28 kHz
Stabilizer Output Voltage: 8.5 to 9.5 V
Weight: Not more than 0.65 kg
Technical Documentation: IKD27DA-400-830 technical documentation

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