12V 0.56 inch 4 Digital LED Display Tachometer RPM Speed Meter High Precision

Description

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12V 0.56 inch 4 Digital LED Display Tachometer RPM Speed Meter High Precision Tachometer With Hall Proximity Switch Sensor NPN
Main Specifications:
1. Measurement accuracy:±0.1%, reading±1 word.
2. Display mode: 0.56 red, green, blue LED
3. Four-digit reading 10-9999 revolutions
4. Display refresh rate: >3 times/sec
5. Working power supply: DC8-24V, 30mA, and 5v power supply version.
6. Overall dimensions: 79×42×25mm
7. Installation size: 76×39mm
8. Weight: Tachometer 47 grams Sensor 45 grams Package 92 grams
9. The Hall sensor is NPN normally open, the detection distance of the Hall sensor is within 10MM, the installation diameter of the Hall sensor is 12MM, and the wiring length is 1.2M
Precautions for use:
1. Connect the plug correctly according to the wiring diagram
2. Avoid strong electromagnetic interference, and use shielded wire or twisted pair for measurement wires
3. The counting signal of the counter and the input switch or circuit of the reset signal should be as close as possible to the terminal of the counter, and the signal wire should be as short as possible
4. Avoid the same tube or twisted wiring with others such as strong current wires or power wires to avoid unnecessary interference. If necessary, use shielded wires and connect the shielding layer to the counting terminal "+".
5. It is not recommended to use mechanical switches or micro-switches, because their lifespan is relatively short, and they are easy to miscount after a long time; for example, when using mechanical switches or micro-switches, please try to use better quality to avoid miscounting. Recommend to use magnetic switch
Package Included:
Digital tachometer counter x1
Hall switch x1