Product Introduction

The Hongrun NHR-2400 series frequency/tachometer adopts fully automatic surface mount packaging technology, which has strong anti-interference ability and multiple output and control functions. It is widely used in many fields such as power, petrochemical, metallurgy, light industry, pharmaceuticals, aviation, etc., and is matched with various speed sensors.

6-digit LED digital display, wide display range, and adjustable display brightness.

Frequency measurement range: 1-34KHz, maximum input amplitude: 24V DC, minimum resolution: 0.01Hz.

Equipped with functions of "upper and lower limit alarm", "delayed alarm", and "alarm delay reset", with LED alarm light indication.

Supports RS485 and RS232 serial interfaces, using standard MODBUS RTU communication protocol.

Optoelectronic isolation technology is used between output, power supply, and communication.

It has multiple external dimensions and styles for users to choose from.

Panel touch sensitive button settings, parameter settings are permanently saved when powered off.

PV: Display measurement values; In the parameter setting state, display parameter symbols and parameter values.
A/T: Display speed, indicator light on.
B/D: Backup.
AL1: First alarm indicator light.
AL2: Second alarm indicator light.
Hz: The frequency tachometer indicator light is on.
C: Backup.
T: Backup.
Note: When the external dimensions are 96 * 48mm, there are no Hz, C, or T indicator lights.