Frequency Meter

This digital frequency meter is a professional instrument designed to measure AC power frequency, widely used in power distribution systems, industrial control panels, and generator sets. Featuring a clear LED display, it provides real-time, accurate frequency readings, helping you monitor power grid stability and avoid equipment damage caused by frequency fluctuations.

With a wide working power supply range of AC/DC 85V–265V, the meter adapts to various power environments. The adjustable frequency range and Class 0.5 accuracy ensure reliable performance for both 50Hz and 60Hz systems. The optional RS485/Modbus-RTU communication function enables remote monitoring and integration with SCADA or PLC systems for centralized power management.

● High Precision,Class 0.5 accuracy

● Works with AC/DC 85~265V, Wide-Range Power Supply

● Optional Modbus Communication: RS485/Modbus-RTU

This digital frequency meter is designed for low-voltage power system monitoring in both industrial and commercial indoor environments. It is suitable for installation in distribution cabinets, control panels, generator sets, and mechanical equipment rooms.

The meter performs stably in factory workshops, production lines, and power distribution rooms, adapting well to conventional dry, well-ventilated electrical spaces. Widely used in power grid monitoring, automation equipment, and municipal engineering projects, it maintains reliable operation under normal temperature and humidity conditions, meeting the long-term frequency monitoring needs of both single-phase and three-phase AC power systems.

This digital frequency meter is a reliable and cost-effective solution for power system monitoring. Unlike traditional analog meters, it delivers clear, real-time frequency readings on an LED display, making it easy to detect abnormal fluctuations that could damage your equipment.

Its Class 0.5 accuracy ensures precise monitoring of both 50Hz and 60Hz systems, helping you maintain power quality and prevent downtime. The wide 85–265V power supply works reliably in unstable environments, while the optional Modbus communication lets you integrate it into SCADA/PLC systems for centralized management.

Designed for standard panel mounting, it fits easily into most distribution cabinets and control panels, with simple front-key operation for quick setup. The durable flame-retardant housing and low maintenance needs make it ideal for long-term use in industrial and commercial settings. Whether you're monitoring generators, power grids, or production equipment, this frequency meter offers the accuracy, versatility, and ease of use you need.

1. Installation

● Panel Mounting: Cut a standard 91×91mm opening for the 96×96mm meter. Insert and secure it with mounting brackets.

● Wiring: Connect the auxiliary power supply (AC/DC 85–265V).Wire the AC voltage input terminals (compatible with both single-phase and three-phase systems).

● Power On: Apply power to confirm the LED display lights up normally and shows readings.

2.Operation

● Key Functions:Navigation keys: Enter the menu, adjust values, and confirm settings.

● Range Setup:Enter the settings menu to configure the frequency range (e.g., 45–65Hz) via front-panel keys

● Readings: The display shows real-time AC frequency in Hz.

3.Safety & Maintenance

● Always disconnect power before installation, wiring, or disassembly to avoid electric shock.

● Do not exceed the rated input voltage range to prevent damage to the meter.

● Keep the meter away from water, high humidity, and corrosive environments.

● Periodically check wiring connections for looseness or signs of overheating.

● Clean the display surface with a dry cloth; avoid using chemical solvents.