4-digit blue LED engine tachometer, RPM speedometer, NPN Hall proximity switch sensor (tachometer)

General Description

The tachometer is a device for measuring rotational speed, designed to display accurate readings up to 9999 rpm. It is equipped with a 0.56-inch, 4-digit blue LED display, providing clear data visibility. This tachometer comes with a 3-wire NPN proximity switch sensor, ensuring easy installation and reliable operation. Technical Specifications: Item Type: Tachometer; Operating Voltage: DC 8-24V, 40mA; Display: 0.56-inch blue LED, 4-digit readout; Measuring Range: 10-9999 RPM; Measuring Accuracy: ±0.1%, Readability ±1 digit; Refresh Rate: >3 times/sec. Dimensions: 79 x 26 x 43 mm / 3.11 x 1.02 x 1.69 in. Compatibility and Accessories: 1 x LED Tachometer Hall proximity switch, 1 x round magnet, 1 x cable

Installation

For correct installation, it is important to follow these recommendations: Connect the plug according to the supplied wiring diagram. Install the Hall sensor at a sensing distance of less than 10 mm.

Use shielded or twisted-pair wires to avoid electromagnetic interference. Keep the meter signal and the switch as close as possible to the meter terminals.

Avoid running the tachometer wiring near live electrical wires to minimize interference.

Application

The tachometer is designed to measure the rotational speed of motors. It is recommended to avoid the use of mechanical switches or microswitches due to their limited lifespan. If these must be used, opt for higher-quality models. Other information: Note: Ensure that the shielding layer of shielded wires is connected to the "+" counting terminal.