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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. 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.
PCH Solutions:

PCH 1072 Vibration Monitor (1-Channel)

The PCH 1072 is the new generation of high quality low cost vibration monitors, which can be used in many rotating machine applications. The standard version is a 1 channels monitor with a frequency range from 0.7Hz to 1kHz. It offers user selectable filters and selection between acceleration, velocity or displacement.

The vibration monitor is prepared for DIN rail installation or can be build into an IP67 casing.

The vibration monitor includes Windows based software for parameter set up, trend recording and time waveform streaming for offline FFT analysis. Can be connected to RS485 net.

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)

The PCH 1073 is the new generation of high quality low cost vibration monitors, which can be used for surveillance of vibration levels in machinery and detecting unbalance and bearing faults.

The monitor operates within 2 simultaneously running frequency bands configurable 0.7Hz to 11.5 kHz. A primary low-frequency band monitors vibrations according to DIN/ISO 10816. A second multi purpose band offers detectors as RMS, Envelope, Crest factor and Kurtosis, and is ideal for condition monitoring of roller bearings.

It is possible from one transducer point to monitor both unbalance and bearing failure simultaneously.

The monitor includes windows based software for parameter set up, time wave streaming and off line FFT. Several monitors can be connected by a RS-485 net.

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-Channel)

The PCH 1420 is a digital multipurpose 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 ruggedized IP67 casing and replaces our well-known PCH 1008 Vibration Monitor.

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 Vibration Monitor (2-Channel) 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 of 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-Channel)

PCH 1420 operates with 2 simultaneously running frequency bands and 4 vibration input channels. This vibration monitor has a frequency range from 0.7 Hz to 11.5 kHz and will typically monitor the 10-1000 Hz area (ISO 10816-3), and the high-frequency area 2-10 kHz.

In order to detect faults ahead of time, PCH 1420 uses several bearing faults detectors simultaneously. It offers broadband high-frequency monitoring, Envelope, Kurtosis and Crest factor for fault detection.

The monitor includes application software PCH Vibration Studio which can record up to 4 times waveform signals and perform a FFT analysis of the recording data. 

 
PCH 1420 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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