H391T-56-1 (Howell) Features and Specifications *

The H391T-56-1 TAKCAL Tester, manufactured by Howell Instruments, Inc., is a lightweight, portable unit specifically designed for monitoring and displaying tachometer generator outputs for up to four T56 engines. This tester is ideal for use with C-130 aircraft, providing accurate measurements and displays of individual tachometer speeds in percent RPM. It features a user-friendly design, making it accessible even for new users with minimal training.

One of the standout features of the H391T-56-1 TAKCAL® Tester is its connectivity and power capabilities. It can be powered using a 115 VAC source from the fuselage Sta245 receptacle, and it connects at the flight deck navigator station. This setup allows the operator to compare all four tachometer generator inputs to the indicator readings directly at the flight deck, ensuring precise monitoring and diagnostics.

In terms of specifications, the tester displays RPM values for each engine with an accuracy of 0.1% RPM up to 125% RPM. It weighs only 2 lbs and measures 9 inches in height, 5 inches in width, and 2 inches in depth, making it a highly portable and convenient tool for engine testing and trimming. The unit operates on inputs of 115 VAC with a frequency range of 50 to 400 Hz and has an output capacity of 4A maximum​​.

The Howell H391T-56-1 price and features make it a very attractive option compared to similar tachometers available on the market.

Features

• Measures and displays up to four individual tachometer speeds in percent RPM.
• Powered by 115 VAC from the fuselage Sta245 receptacle.
• Connects at the flight deck navigator station for signal comparison.
• User-friendly design requiring minimal training for new users.
• Lightweight and portable for easy transport and use.

Benefits

• Allows for accurate monitoring of tachometer generator outputs for T56 engines.
• Facilitates quick and precise diagnostics from the flight deck.
• Simplifies training and operation, reducing the learning curve for new operators.
• Enhances portability, making it convenient for use in various locations.

Capabilities

• Displays RPM values for up to four engines with high accuracy.
• Compares all four tachometer generator inputs to indicator readings at the flight deck.
• Operates on a wide input frequency range (50 to 400 Hz) with a maximum output capacity of 4A.
• Provides dynamic monitoring and display of tachometer outputs for T56 engines.

Specifications

• Display: Shows XXX.X %RPM for all engines.
• Inputs: 115 VAC, 50 to 400 Hz.
• Output: 4A Maximum.
• Accuracy: 0.1 %RPM up to 125 %RPM​​.

BASIC INFORMATION

CHARACTERISTICS

* Howell Instruments H391T-56-1 technical specifications is provided for reference only. Avionteq cannot ensure accuracy of the technical specifications presented herein. The technical data may not relate entirely to all model and versions of the H391T-56-1 such as the models sold by Avionteq.

Buy, sell, trade-in or rent Howell Instruments H391T-56-1 Tachometer.

Avionteq offers both new and refurbished or used Howell Instruments H391T-56-1 TAKCAL Tester for sale or rent at most competitive price. All refurbished equipment are thoroughly tested and come with our warranty and fresh calibration certificate (when required). You can also sell your excess / surplus Howell Instruments H391T-56-1 or receive trade-in credit towards purchase of other test equipment.