SQK03 High precision tachometerDetailed product description：

SQK-03-R2-A20 high-precision tachometer, with 5-digit red LED digital display and several LED light indicators, one 4-20mA current output, three relay outputs, and one shaping pulse output; It can be matched with magneto electric sensors and NPN-OC switches. In addition to detecting general speed, linear velocity, and flow rate, it can also measure ultra-low and ultra-high speeds. It is a high-precision speed display control instrument.
SQK-03-R2-A20 high-precision tachometer has excellent characteristics such as high measurement accuracy, strong anti-interference performance, and wide engineering applicability. At present, it has been widely used in industries such as shipbuilding, metallurgy, energy, chemical engineering, electronics, machinery, and automobile manufacturing.

Main technical characteristics of SQK03 high-precision tachometer
1. Power supply: 11V~36V, DC or 24V, AC, 50/60Hz
2. Power consumption: not exceeding 5W
2. Input signal: 0-20kHz
3. Display range: 0.1 to 99999 (decimal point can be kept to any digit)
4. Basic error: 0.01% (digital) 0.2% (analog)
5. Operating environment: Temperature -20~65 ℃, relative humidity ≤ 85%
6. Hole size: 92 × 46
7. Dimensions: 96 × 48 × 110
8. Weight: less than 400g

Main functions and configuration parameters of SQK03 high-precision tachometer
1. Main functions and features
SQK-03-R2-A20 high-precision tachometer, with one DC current output, three relay outputs, and RS232C communication functions. The specific functions are listed below for users to refer to when selecting.

Main functions:
1.5-digit digital display and several LED lights indicating
2. Analog output: 4-20mA
3. Three relay outputs
4. RS232C communication, 9600bps, 8, n, 1 (4800bps, 9600bps, 57600bps, 115200bps optional)

The main features of SQK03 high-precision tachometer are:
1. Accurate and reliable: Input standard signal, test record 1000000, no deviation
2. Measurement of ultra-low speed: The lowest frequency can reach 0.002Hz
3. Measuring ultra-high speed: The maximum speed can reach 600000r/min
4. Dynamic testing record: In conjunction with software, it can dynamically record speed changes, with a minimum refresh (sampling) time of 40mS
5. Wide input matching: able to match with most speed sensors
6. Strong anti-interference ability: suitable for various industrial sites
7.10 Parameters: can be queried/modified through the operation keys on the panel or computer, and saved for a long time

2. Signal input method:
Collecting two commonly used input methods, it is suitable for the matching needs of most speed sensors.
Input method:
Suitable for matching with magneto electric sensors and eddy current sensors (input impedance 5.1 k Ω).
The selection of sensors determines the input method for high-precision tachometers:
When selecting sensors, the first thing to consider is the measurement range, installation method, and usage environment. Furthermore, attention should be paid to the output characteristics of the sensor, which should match the input characteristics of the high-precision tachometer.