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Rotational Speed Calibration Device
YH-400 Series Standard Rotational Speed Calibration Device
YH series standard rotational speed device adopts dual phase-locked speed stabilization technology and dual three-phase bridge commutation drive technology, using highly reliable brushless motors and precision low-noise gear transmission mechanisms, with high-precision and high stability digital speed regulation function and flexible and accurate stepless speed regulation function. Its series of products are also widely used in industries such as power, aerospace, railway, and machinery manufacturing.
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iconProduct overview

YH-400 Series Standard Rotational Speed Calibration Device

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YH series standard rotational speed device adopts dual phase-locked speed stabilization technology and dual three-phase bridge commutation drive technology, using highly reliable brushless motors and precision low-noise gear transmission mechanisms, with high-precision and high stability digital speed regulation function and flexible and accurate stepless speed regulation function. Its series of products are also widely used in industries such as power, aerospace, railway, and machinery manufacturing.

iconProduct function

◆Rotational speed data setting;

◆It can be used for the calibration of various rotational speed instruments and rotational speed measurement systems, such as rotational speed, reverse protection, and overspeed protection;

◆Equipped with complete accessories, it can calibrate photoelectric or mechanical, handheld, contact or non-contact tachometers, etc;

◆The sensor installation disk has 24 sensor installation holes, which are particularly suitable for the calibration of various specifications of magneto electric, magneto electric, Hall type, and eddy current speed sensors;

◆Special accessories can be configured to calibrate various types of aviation tachometers (models include GZ-1, GZ-2, GZ-8A, GZT-1, GZT-2, A-10, T-45, etc.), marine tachometers, and locomotive tachometers;

◆Can output standard electrical signal source and perform separate calibration on secondary instruments for speed measurement; Equipped with a speed sensor signal input interface, it can provide power distribution and separate verification for the rotational speed sensor without secondary instruments.

iconTechnical index


NameData
Rotational Speed Range20～6600 r/min ；20～10000 r/min ；20～30000 r/min
Rotational Speed Uncertainty3×10-4
Rotational Speed Stability1×10-4
Time Base PerformanceStartup accuracy 5×10-6； Daily stability：5×10-6；Time base frequency：10MHz
Rotational Speed Resolution1 r/min
Output Standard Electrical SignalFrequency range  2～9999Hz
Accuracy1×10-5
Wave FormSquare wave
Range12V
Output DC Voltage±5V、±12V、±24V
Range of Requirements for Accessing External Measurement Signals1～9999.Hz
AmplitudeMore than 0.5v
Gear DiscInvolute tooth profile
Number of Teeth60;  2 modules ; Diameter is 124mm (can be designed with various tooth specifications according to user requirements)
Install ThreadThere are 12 thread specifications on the sensor installation disk
Metric SystemM10×1、M12×1、M14×1、M16×1、M18×1、M16×1.5、M18×1.5、M20×1.5、M22×1.5
British System1/4-40、3/8-24、5/8-18
Total Power≤300W


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Frequentlyquestions

The verification process can perform data analysis, calculation and automatic identification of excess errors;

Is the hydraulic pressure of the pressure pump unstable or unable to generate pressure normally?
Reasons: 1. Insufficient fuel level in the fuel tank; 2. Damage and leakage at the pipeline joints during transportation; 3. The sealing of the "○" ring of the quick connector is damaged; 4. The air in the system is too much or not completely discharged. Methods of solution: 1. Loosen the fuel tank cap or refuel the fuel tank; 2. Tighten the pipeline joints; 3. Replace the "○" ring (diameter 9 * 2.65); 4. Repeatedly pumping the charging pump allows the air in the system to be discharged with the fuel tank.
The common reasons for unstable hydraulic pressure or inability to generate pressure normally.
1. Insufficient fuel level in the fuel tank; 2. Damage and leakage at the pipeline joints during transportation; 3. Quick connector "○" ring seal damaged; 4. Too much or uncleaned air in the system.
What are the common reasons for empty pressure of pressure pump of manual pressure calibrator?
Reasons: 1. The directional valve does not change direction properly, resulting in air leakage; 2. The positive pressure check valve or negative pressure check valve does not reset after movement, resulting in air pressure phenomenon. Methods of solution: 1. The reversing valve must be reversed in place, and the reversing valve stem cannot be suspended in mid air; 2. Check if the one-way valve seat holes for positive and negative pressure do not meet the requirements; 3. The spring is severely tilted, and the one-way valve core cannot slide freely.
What are the specific advantages of Yuanhuatc's fully automatic pressure calibrator?
Yuanhuatc has high flexibility and adopts advanced analysis algorithms and automatic control technology, which can quickly and accurately complete verification tasks.
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