ZH07-A Dynamic Torque Sensor

The sensor is an integrated product consisting of a sensitive element based on resistive strain and an integrated circuit. This sensor has high manufacturing process requirements. Its advantages include no internal friction, capable of reaching 6,000 RPM, and a response time of 20ms. It has received high praise from users in dynamic torque measurement.

ZH07-A Type Torque Speed Sensor Technical Specifications

Sensor power supply voltage: ±12C (optional 24VDC)
Torque Accuracy: 0.2% F.S., 0.3% F.S., 0.5% F.S.
Repetition: 0.2% F.S., 0.3% F.S., 0.5% F.S.
Linear: 0.2% F.S., 0.3% F.S., 0.5% F.S.
0.2% F.S., 0.3% F.S., 0.5% F.S.
Overload Capacity: ≤150%
Insulation Resistance: >200 MΩ
Operating Temperature Range: -20℃ to +60℃
Relative Humidity: ＜90%RH
Sensor Power Consumption: <4W
Load Current < 15mA
Dynamic strain wave response time of the strain gauge: 3.2×10^-6
Sensor signal output can be directly input into the PLC after adjustment.

ZH07-A Type Torque Speed Sensor Output Signal

Torque Calculation Formula

Torque Standard Output Signal: Frequency Signal Output (Amplitude 5V)

Frequency Signal Output: 5KHz to 15KHz, zero point at 10KHz
Zero torque frequency output: 10KHz
Positive torque full-scale frequency output: 15 kHz
Full-scale reverse torque frequency output: 5 KHz

Torque Calculation Formula

Mp=N(f-f0)/(fp-f0)
Mr=N(f0-f)/(fr-f0)
Mp: Positive Torque; Mr: Reverse Torque
N: Full Torque Range;                                  f0: Torque Zero Point Output Frequency Value (KHz)
fp: Forward Full Scale Output Frequency (KHz); fr: Reverse Full Scale Output Frequency (KHz)
f: Real-time Torque Output Frequency Value (KHz)

Standard rotational speed output signal: Frequency signal output (amplitude 5V)

Speed measurement employs encoder and photoelectric tooth disk methods, with the photoelectric tooth disk method used for high-speed measurements and the rotating encoder for low-speed measurements. It can also measure rotation angle, with the number of pulses depending on the number of teeth on the sensor's speed disk or the encoder's grating. Pulse output per revolution: 60 pulses/revolution (can output A, B phases with a phase difference of 90°).
RPM Calculation Formula
n=60f/Z
RPM: Revolution Per Minute
Actual Rotational Speed Output Frequency Value (KHz)
Sensor speed disk teeth count

ZH07-A Type Torque and Speed Sensor - Additional Signal Options

The sensor output signal amplitude can be increased to 24V (NPN or PNP options available).

Convert the frequency signal output from the sensor to F/V, F/I (optional analog voltage, current)

Serial Bus Mode: RS232/485 Optional

ZH07-A Type Torque Speed Sensor Wiring Definition

ZH07-A Type Torque and Speed Sensor Wiring Definition

ZH07-A Type Torque Speed Sensor Output Signal Reading Method

Sensor Output Signal Reading Method

ZH07-A Type Torque Speed Sensor Product Features

Utilize the principles of elastic strain measurement technology

Sensor signal output is available in various modes (frequency, analog, bus).

Signal and power are transmitted non-contact, without slip rings or brushes.

Measure positive and reverse moments without zeroing and reversing.

The signal employs frequency output, with high signal-to-noise ratio and excellent anti-interference performance.

Fast response, measurable starting torque, and transition process torque measurement available.

Unrestricted by rotational speed, capable of measuring real-time torque and power

Sensor linearity, good repeatability, high reliability, and strong anti-interference ability

Sensor structure is compact, small in size, and lightweight, widely used in various online testing and industrial control systems.

ZH07-A Type Torque Speed Sensor Outline Drawing

Can be installed horizontally or vertically.

During horizontal installation, both rigid and flexible couplings can be used. The couplings should be tightly fitted against the shaft shoulders at both ends of the sensor.

ZH07-A Type Torque Speed Sensor Mounting Method

Sensor Installation and Usage Precautions

Absolutely no live installation; please disconnect the power during installation.

Do not directly and forcefully strike or collide the sensor's output shafts during installation.

When the horizontal installation coupling of the sensor is heavy, a bearing bracket should be added at the coupling location to prevent the sensor from bearing bending moments.

In cases of significant vibration or concentricity exceeding 0.05mm, use a flexible coupling first, and the base must be securely fastened to the pedestal.

In installations with favorable conditions and high measurement accuracy requirements, rigid couplings should be used, ensuring a firm and secure fixation between the base and pedestal.

The base surface should be installed with adequate strength to ensure stability and prevent excessive vibration.

This sensor is not waterproof or explosion-proof. Please note when using: (Special requirements may be customized upon request.)

Ensure proper grounding in the sensor system and implement shielding and isolation for signals that may interfere with each other.