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EMAS RDH1S EMAS DGTL FREQUENTMETER 220V AC
EMAS RDH1S digital frequency meter panel meter with a 30 to 70 Hz measuring range, 100 to 250 V AC measurement interval, three-digit display and 1CO changeover contact.
£65.75
Why Choose the EMAS RDH1S Digital Frequency Meter?
The EMAS RDH1S is a compact digital frequency meter panel meter designed to measure and display the frequency of an AC electrical supply. Part of the EMAS RD series, it provides clear digital indication for industrial control panels, machinery, generator systems and low-voltage power distribution equipment.
The RDH1S supports a measuring interval of 100 to 250 V AC and a frequency range of 30 to 70 Hz. Its three-digit seven-segment display allows engineers and operators to monitor supply frequency clearly, helping identify abnormal conditions that could affect motors, generators and frequency-sensitive equipment.
Operating from a nominal 230 V AC, 50 Hz supply, the RDH1S features an eight-pin connection and an integrated 1CO changeover contact. Its compact, finger-safe construction and operating temperature range of -5 °C to +55 °C make it suitable for dependable use within industrial electrical enclosures.
Key Advantages
- Digital frequency measurement from 30 to 70 Hz.
- Suitable for monitored voltages between 100 and 250 V AC.
- Clear three-digit seven-segment display.
- Integrated 1CO changeover contact.
- Compact eight-pin format for efficient panel installation.
- Finger-safe design for improved installation and maintenance safety.
Key Features
- EMAS RD series digital frequency meter.
- 30 to 70 Hz frequency measuring range.
- 100 to 250 V AC voltage measuring interval.
- 230 V AC operational voltage.
- 50 Hz nominal operational frequency.
- Eight-pin connection type.
- 1CO changeover contact configuration.
- IP20 protection rating.
Reliable Frequency Monitoring for Electrical Systems
Frequency meters provide continuous measurement of an AC electrical supply and help operators confirm that the system remains within its intended operating range. Frequency variations can affect motor speed, generator stability, timing equipment and other sensitive electrical loads.
The EMAS RDH1S provides a clear digital reading across its 30 to 70 Hz measuring range. Its integrated changeover contact also allows the unit to support monitoring, signalling and control functions within industrial electrical systems.
Typical Applications
- Industrial electrical control panels.
- Generator frequency monitoring.
- Low-voltage distribution boards.
- Motor and machinery supply supervision.
- Automation and process control systems.
- Frequency monitoring and alarm circuits.
Technical Specifications
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| Device Type | Frequency meter | |
|---|---|---|
| Voltage | 220 V | |
| Manufacturer | EMAS | |
| Series | RD Series | |
| Model | RDH1S | |
| Product type | Digital frequency meter panel meter | |
| Control type | Digital | |
| Measurement type | AC frequency | |
| Frequency measuring range | 30 to 70 Hz | |
| Voltage measuring interval | 100 to 250 V AC | |
| Operational voltage | 230 V AC | |
| Permitted voltage range | 0.85 to 1.1 × Ue | |
| Nominal operational frequency | 50 Hz | |
| Display type | Seven-segment display | |
| Number of display digits | 3 | |
| Connection type | 8 pins | |
| Contact configuration | 1CO changeover contact | |
| Operating temperature | -5 to +55 °C | |
| Protection rating | IP20 |
Frequently Asked Questions
What is the EMAS RDH1S used for?
It is used to measure and display the frequency of an AC electrical supply in industrial panels, machinery, generator systems and distribution equipment.
What frequency range can the RDH1S measure?
The EMAS RDH1S measures AC frequencies between 30 and 70 Hz.
What voltage range can the RDH1S monitor?
The meter supports an AC voltage measuring interval of 100 to 250 V.
What supply voltage does the RDH1S require?
The EMAS RDH1S operates from a nominal 230 V AC, 50 Hz supply.
What type of display and connection does it use?
The RDH1S uses a three-digit seven-segment display and an eight-pin electrical connection.
Trusted for Industrial Electrical Monitoring
EMAS digital panel meters are used by panel builders, machine manufacturers and electrical engineers to provide clear measurement and dependable monitoring within industrial electrical systems.
