Sigma Tek, Inc.
Sigma Tek manufactures and distribute aviation instruments, accessories and control panels to the worldwide aviation industry.
- (800) 876-5272
(316) 775-6373 - (316) 775-1416
- requestinfo@sigmatek.com
- 1001 Industrial Rd.
Augusta, KS 67010
United States
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Heading Reference Directional Gyroscopes
4000HR-series
The 4000HR air-driven directional gyro offers some of the best features of our other popular models. It inherited all of the functionality and reliability of the industry standard 4000B upon which it’s based, and it picked up a heading reference bug from the 4000C autopilot model.
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Multifunction Engine Gauge
1U417-series
The three essential engine parameters are packaged in a 3” instrument. The 1U417 was derived from the Garwin 22-804 and is a direct replacement. As evidenced by its predecessor, the three most essential engine parameters have traditionally been the most requested by our customers.
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Multifunction Engine Gauge
1U378-series
This 3” instrument combines the three essential engine parameters in a compact package. Rugged D’Arsonval meter movements with two jewels are used to indicate cylinder head and oil temperatures. A brass bourdon tube mechanism precisely indicates oil pressure. A selection of fittings is available to simplify installation.
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AC Calibration Standard
1U647-001
The 1U647-001 is a low cost calibration standard used to determine if a 1U632-100 or a 1U663-100 DMU requires factory calibration. Its portability makes it ideal for field-testing. The standard generates signals that simulate the aircraft’s resolvers, rotary variable transformers (RVTs), and linear variable displacement transformers (LVDTs). The unit also generates a pulse width modulated (PWM) signal, and routes the output of an ARINC 429 source to the different DMU input channels. The calibration standard connects directly to the DMU and replaces the output signals of an active extender card. Discrete switch settings simplify testing. The unit is housed in a rugged aluminum case.
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ARINC-style Attitude Gyroscopes
1U367-series
The 1U367 has a pictorial horizon mask and a fixed airplane. The mask moves to indicate climb, dive, and bank. Bank and pitch attitudes are diaplayed so that the pilot's sensing of the gyro's horizon indication is the same as the interpretation of the relationship between the wings of the aircraft and the natural horizon during visual flight.
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Autopilot Attitude Gyroscopes
5000E/L-series
The 5000E air-driven attitude gyro is another variation of our standard 5000B model. It includes inductive pickoffs that generate the signals necessaryto drive an autopilot. The intuitive display has a moving horizon mask that indicates the position of the aircraft’s wings in relation to the natural horizon. This attitude information is passed along to the autopilot system.
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Autopilot Directional Gyroscopes
4000C/D-series
The 4000C/D is an air-driven directional gyro with A.C. autopilot pickoffs. Left turns produce clockwise dial rotation and right turns produce counter-clockwise rotation. Two knobs control the gyro. The left knob is used to cage the unit, and the right knob is used to select the instrument’s heading. To change course, the right selector knob is pressed and turned to disengage the dial shaft and set the pointer to a new heading. Releasing the selector knob re-engages the pointer with the di...show more -
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Breakout Box and Data Logger
1U643-001
The 1U634 Breakout Box and Data Logger was developed for the Cessna Excel to serve as the main diagnostics tool for the aircraft?? electronic modules. It allows access to the module pins, and its internal microcomputer digitizes the signals and transmits them to a PC-compatible computer. Advanced software in the computer displays pin voltages either in numerical or graphical form. Data files can be recorded on disk, and played back at a later time for detailed analysis.
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Cageable Attitude Gyroscopes
5000M-series
The 5000M is an air-driven gyro that has a pictorial horizon mask and fixed airplane. The mask moves to indicate climb, dive, and bank. Bank and pitch attitudes are displayed so that the pilot’s sensing of the gyro indication is the same as the interpretation of the relation between the wings of the aircraft and the natural horizon during visual flight.
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Customized Indicator Cluster Gauge Kits
169CL-series
Over the past 40 years, Sigma Tek has custom designed and manufactured reliable, proven instruments for virtually every type of aircraft that flies. This includes precision modular instrumentation configured to customer's exact specifications. Cluster modules measure 1.44" square, and can be arranged in almost any combination for optimum panel utilization. Individual modules are easily removed for calibration and service.
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Data Monitoring System
1S663-001
The 1S663-001 Data Monitoring System was specifically developed for the Cessna Citation X and serves as the primary diagnostic tool for the aircraft?? electronic Logic Modules. The system is FAA certified for airborne operation. Aft compartment and cabin modules can be tested two at a time while remaining in place. The system is also capable of monitoring the fuel quantity system during flight.
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Dual Fuel Gauge
1U432-series
The 1U432 dual fuel gauge is packaged as a compact, 3” instrument. It has dual D’Arsonval movements that are driven by two resistive bulb transducers in the fuel tanks. The two opposing pointers stand out sharply from the non-reflective black background.
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Electric Attitude Gyroscopes
5000EG-series
The 5000EG gyro is based on our air-driven 5000B model, whose proven reliability has made it the industry standard for many years. There are two models available: 14 and 28 VDC. The rotor is precisely machined from a heavy-metal tungsten alloy, which has a higher mass than brass, contributing to the instrument’s demonstrated stability. The electric motor is driven by a built-in power inverter, and has an integrated air-erection mechanism. A warning flag is deployed upon loss of primary power. During acrobatic flights or short stops, the gyro’s mechanism can be caged whenever the knob is pulled.
