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Safeguard Your Machinery with SIL 2 Vibration Monitors

Protect your critical machinery and on-site personnel with SIL 2 rated vibration monitors from PCH Engineering.

Even a few hours’ downtime in critical machinery can mean a great loss in production and man hours – not to mention the cost of repairs and spare parts. Monitoring vibrations gives you early warning of any misalignments. This helps prevent machine breakdowns and ensures continuity of production.

The vibration monitors measure critical frequencies in rotating machinery such as pumps, blowers, decanters and wind turbines. This continuous monitoring of the machine’s condition minimises the risk of costly breakdowns.
 
Most of our monitors are SIL 2 rated with MTTF(D), FIT, PFH(D) and DC diagnostic coverage numbers available.
 

Local safety with built-in alarms

The slightest imbalance or misalignment can cause great damage to a machine and its bearings.

That is why our vibration monitors have a built-in alarm function which can detect any machine faults and warn the operator before they cause breakdowns.

You can even configure an automatic shut-down function for added local safety.
 

Vibration Monitors for Industry 4.0 environments and Predictive Maintenance

With the PCH Cloud Solution, you get a condition monitoring solution suitable for the smart factory of the future.

In addition to the local safety of a traditional vibration monitoring solution (including relays integrated in your safety chain and real-time data), you get online data access, visualisation tools, FFT analysis and safe cloud storage of your data.

See how the PCH Cloud Solution can help protect your critical machinery here.
 

Collect trend data or perform FFT analyses

The PCH vibration monitors are the perfect addition to your condition monitoring or predictive maintenance program. You can collect scalar values and real-time time-stream / waveform recordings with the complementary PCH Vibration Studio software.

You can also transfer data to a SCADA or PLC solution using communication protocols like CAN Open, ModBus or ProfiNet, made available as 4-20 mA / 0-5V signals.

Store the data locally with a PCH Datalogger module or our OPC server, or send it to a cloud database for remote access.

It is possible to make a fourier transformation (FFT) of time-recordings and identify vibration frequencies affecting your machine performance. The analysis can be done on site or at a remote location after data transfer using our PCH EtherBridge. Data can be treated locally or in the cloud.
 

Fully certified monitors made in Denmark

All PCH vibration monitors and sensors are developed and produced in Denmark by our experienced engineers.

Our company and product certifications include:
  • CE
  • ISO
  • ATEX/IECEx
  • GL
  • UL
Our SIL-rated vibration monitors are manufactured in accordance with the SIL Declaration of Conformity according to EN 13849-1 documenting all safety calculations such as the Safe Failure Fraction (SFF), Diagnostic Coverage (DC) and Mean Time to Dangerous Failure (MTDFD).

This is your guarantee that the equipment meets all international regulatory and quality standards.
 

We help you find the right solution for your machinery

You can safely rely on our expertise. We have close to 30 years of experience with vibration monitoring equipment, and we supply vibration monitoring solutions and equipment for approximately 20,000 machines annually.

Among those machines are:
  • Centrifuges, Separators, Decanters & Purifiers
  • Gears
  • Blowers, Fans & Pumps
  • Waste Handling Systems
  • Spray Driers
  • Cooling Towers
  • Food & Chemical Treatment units
  • PowerPlants
  • Cement Plants
     

A vibration monitoring solution to fit every OEM customer

As an OEM customer, you can get a vibration monitor that is customised to your machine.

Our vibration monitors are used by a large number of machine manufacturers in the wind, cement, energy, food and chemical industries, each with their own particular requirements.
 

Which vibration monitor should you choose?

When choosing your monitor, note the combination of vibration input channels and relays or configurable outputs.

We offer a range of four standard vibration monitors. Most of them are SIL 2 rated with MTTF(D), FIT, PFH(D) and DC diagnostic coverage numbers available.

Each monitor comes with complementary, Windows-based software for parameter set up, time wave streaming and offline FFT. Several monitors also feature RS-485 communication.
 
PCH Solutions:

PCH 1072 Vibration Monitor (1 channel, 2 relays)

The PCH 1072 is a high quality, low cost vibration monitor, which offers cost-effective protection of rotating machinery. The standard version is a 1-channel monitor with two relays and a frequency range from 0.7Hz to 1kHz.

It offers user defined filters and a selection between acceleration, velocity or displacement.
 

PCH 1072 Vibration Monitor features:

  • 1 vibration input channel (accelerometer, proximity probes or velocity probes)
  • 2 relays and a 4-20 mA output.
  • Redundant Safety Relay (SIL 2)
  • Configurable alarm levels and delay times
  • Offline FFT analysis
  • Buffered output (optional)
  • Modbus RTU (optional)
     

PCH 1073 Vibration Monitor (1 channel, 4 relays)

The PCH 1073 is a high-quality, low-cost redundant vibration monitor. It is designed for the surveillance of vibration levels in machinery and can help detect unbalance and bearing faults.

The monitor operates within 2 simultaneously running frequency bands configurable to measure between 0.7Hz and 11.5 kHz.

The primary low-frequency band monitors vibrations according to DIN/ISO 10816.

The second multi-purpose band offers detectors such as RMS, Envelope, Crest factor and Kurtosis, and is ideal for monitoring the condition of roller bearings.
 

PCH 1073 Vibration Monitor features:

  • 1 vibration input channel (accelerometer, proximity probes or velocity probes)
  • 4 relays and two 4-20 mA output.
  • Redundant Safety Relay (SIL 2)
  • Configurable alarm levels and delay times
  • Offline FFT analysis
  • Buffered output (optional)
  • Modbus RTU (optional)
     

PCH 1420 Vibration Monitor (2 channels, 4 configurable outputs)

The PCH 1420 is a digital, multi-purpose vibration monitor with 2 input channels for IEPE or 3-wire API678 accelerometers, configurable alarm levels, 4-20 mA outputs and delivered for DIN rail mounting or within an IP67 casing.

This version comes in a ruggedised IP67 casing.

Each input channel can be configured with filter ranges from 1 Hz up to 10 kHz and supports both acceleration, velocity and displacment measuring units. This vibration monitor is a highly ruggedized measuring device for direct installation in the toughest industrial enviroments.
 

PCH 1420 2-Channel Vibration Monitor features:

  • 2 vibration input channels for CCLD/IEPE
  • 1 Hz - 10 kHz filter ranges
  • True RMS, Peak or Peak-to-Peak detectors
  • Acceleration, velocity or displacement measuring units
  • 4 relay drivers or 4-20 mA outputs
  • 1 potential free alarm relay
  • USB/RS485 port for easy configuration
  • LED displays for local readings are optional
  • BNC connectors for buffered outputs are optional
  • 24 VDC power supply, optional 100-240 VAC
     

PCH 1420 Vibration Monitor (4 channels, 4 configurable outputs)

The 4-channel PCH 1420 is our most advanced vibration monitor. It provides extensive data on the condition of your machinery and roller bearings and is the perfect addition to any condition monitoring and predictive maintenance programme.

The monitor is part of our modular vibration monitoring system, PCH Link Concept. The system allows you to customise a vibration monitoring solution that is perfectly adapted to your machinery and is easily adjusted with extra modules as your need for monitoring grows.

We recommend you use this monitor with the IoT-based PCH Cloud solution. When connected with the online communication module PCH EtherBridge, the PCH 1420 monitor can form part of an Industry 4.0 condition monitoring strategy.
 
PCH 1420 4-Channel Vibration Monitor features:
  • Supports 4 vibration input channels (accelerometer, proximity probes or/and velocity probes)
  • 4 configurable outputs, relay driver or 4-20 mA
  • Redundant Safety Relay (SIL 2)
  • Configurable alarm levels and delay times
  • Offline FFT analysis
  • Ready for IIoT(REST) and PCH Cloud
     

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