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China Frequency Meters - Reliable Suppliers & Factory for Standard and Vibrating Reed Frequency Measurement Devices
Product Overview
1
Standard Frequency Meter
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1.1 Measuring Range (Frequency)
The meter supports three selectable frequency measurement bands to cover global grid standards and frequency fluctuation scenarios:
- 45 ~ 55 Hz — Optimized for systems with nominal 50 Hz frequency
- 45 ~ 65 Hz — Broadband coverage for 50 Hz and 60 Hz mixed systems
- 55 ~ 65 Hz — Targeted for systems with nominal 60 Hz frequency
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1.2 Rated Voltage Input
Compatible with a comprehensive range of standard AC system voltages, eliminating the need for external voltage transformers in most applications:
100 V
220 V
380 V
400 V
440 V
This wide voltage compatibility ensures seamless integration with single-phase and three-phase AC power systems.
2
Vibrating Reed Frequency Meter
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2.1 Measuring Range (Frequency)
Mirroring the broadband flexibility of the standard model, this vibrating reed meter is calibrated for the following frequency bands, leveraging resonant reed technology for intuitive, real-time frequency indication:
- 45 ~ 55 Hz
- 45 ~ 65 Hz
- 55 ~ 65 Hz
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2.2 Rated Voltage Input
Supports a distinct voltage range tailored to its reed resonance design, suitable for both low-voltage and industrial-grade systems:
50 V
100 V
220 V
380 V
440 V
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2.3 Reed Arrangement & Functional Configurations
The vibrating reed frequency meter is available in two reed layout designs, each optimized for specific measurement tasks, with customizable orientation options:
🟦 Single Row Horizontal Reed Configuration
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Primary Application
Dedicated to direct frequency measurement of a single AC power system, covering the 45 ~ 65 Hz range. -
Customization Option
Vertical reed arrangement can be provided upon customer request, for installations with space constraints or specific visual alignment requirements.
🟧 Dual Row Horizontal Reed Configuration
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Primary Application
Designed for frequency comparison between two electrically isolated AC power systems. This configuration enables simultaneous visual verification of frequency consistency — critical for system synchronization, parallel operation of generators, or cross-grid frequency monitoring. -
Customization Option
Vertical reed arrangement is available upon request, to suit specialized panel mounting layouts.
Frequently Asked Questions (FAQ)
Q
What is the difference between the Standard Frequency Meter and the Vibrating Reed Frequency Meter?
The Standard Frequency Meter uses conventional electronic measurement to display frequency readings digitally or via a pointer. The Vibrating Reed Frequency Meter uses resonant reed technology, where physical reeds vibrate at their natural resonant frequency to provide an intuitive, real-time visual indication — making it particularly useful in environments where a quick visual check is needed without reading a numeric display.
Q
Which frequency band should I choose for my power system?
Select 45 ~ 55 Hz if your system operates at a nominal 50 Hz frequency. Choose 55 ~ 65 Hz for nominal 60 Hz systems. If your installation involves both 50 Hz and 60 Hz networks, or if wide frequency fluctuations are expected, the 45 ~ 65 Hz broadband range is recommended for maximum coverage.
Q
Do I need an external voltage transformer to use these frequency meters?
In most applications, no. The Standard Frequency Meter directly supports rated voltages of 100 V, 220 V, 380 V, 400 V, and 440 V, eliminating the need for external voltage transformers. The Vibrating Reed model similarly supports 50 V, 100 V, 220 V, 380 V, and 440 V. Only in cases where your system voltage falls outside these ranges would an external transformer be required.
Q
What is the Dual Row Reed Configuration used for?
The Dual Row Horizontal Reed Configuration is specifically designed for comparing frequencies between two electrically isolated AC power systems simultaneously. This is especially useful in applications such as generator synchronization, parallel grid operations, or cross-grid frequency monitoring, where verifying that two systems are operating at matching frequencies is critical before interconnection.
Q
Can the reed arrangement be customized to a vertical orientation?
Yes. Both the Single Row and Dual Row reed configurations can be supplied with a vertical reed arrangement upon customer request. This option is available to accommodate space-constrained installations or specific panel mounting layouts that require a different visual alignment.
Q
Are these frequency meters compatible with both single-phase and three-phase AC systems?
Yes. The wide voltage input range supported by both meter types — spanning from 50 V up to 440 V — ensures compatibility with both single-phase and three-phase AC power systems, making them suitable for a broad range of industrial, commercial, and utility power monitoring applications.