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Compact Vibration Monitors protect your machine 24/7

Since PCH Engineering designed, developed and manufactured a range of affordable vibration sensors & vibration monitors featuring both analogue and digital accelerometers at our own production facility in Denmark, measuring and monitoring the vibration level of simple rotating machinery has become economically feasible,

The new Compact Range of PCH monitors can be compared to electronic watch-dogs or vibration switches. Most of our monitors are SIL 2 rated with MTTF(D), FIT, PFH(D) and DC diagnostic coverage numbers available. With a permanent real-time monitoring solution fitted on a machine, abnormal vibrations are detected as they occur. Custom defined alarm and danger relays reduce the need for human intervention, and scalar values of selected frequency ranges can be used for trending.
 

Price attractive alternative

For users who want to prevent their machines from damaging vibrations, e.g. vibrations coming from unbalance and misalignment at the most attractive prices.
 

Avoid unscheduled production stops

A breakown e.g. caused by bearing damage often occurs due to undetected unbalance or misalignment of a machine. Hence the machine runs for a very long time period with a much too high vibration level.

This is the most common reason for serious machine crashes and down time. Having an online vibration monitoring solution fitted, makes it possible to react in time and avoid unscheduled maintenance.
 

Collect trend data or perform FFT analysis

Scalar values and real-time time-stream / waveform recordings can be collected using the free PCH Vibration Studio software or data can be supplied to existing SCADA or PLC solution using standard communication protocols like CAN Open or MotBus, made available as 4-20 mA / 0-5V signals, or stored locally in a PCH Datalogger module. When convenient, waveforms can be FFT transformed and analysed on site or at a remote location.

Proven in use

Investing in a PCH Vibration Guard for a critical or expensive piece of machinery is a very wise decision. Often unexpected damages to machines lead to extra expenses to machine repairs, not to mention the further economic loss due to the production stop.
Today, PCH Engineering supply close to 20.000 machines a year with some degree of vibration monitoring, and we supply in volume for equipment like
  • Centrifuges, Separators, Decanters & Purifiers
  • Gears
  • Blowers, Fans & Pumps
  • Waste Handling Systems
  • Spray Driers
  • Cooling Towers
  • Food & Chemical Treatment units
  • PowerPlants
  • Cement Plants
  • Etc.
It is possible to make stand-alone solutions as well as solutions for a number of machines. When it comes to data collection and analysis it can be done locally or data can be made available for remote access or integration cloud-based solutions.
Typical replacement article codes are: CHF5209, CHF5210, CHF5212, CHF5213, CHF8004, CHF8002, CHF8005, 0005-1646-050, 0005-1646-060, 0005-1646-070, 0005-1646-130, 0005-1848-020.

PCH Compact Range

PCH 1106 Vibration Sensor

If you need a single 4-20 mA overall vibration sensor, our PCH 1106 is the perfect choice for you. The sensor comes in stainless steel 303 housing with an integrated M8 mounting stud and a M12 top exit connector. It offers 2 outputs relative to the overall vibration level making it possible to connect both a PLC and maybe a local display. You will have both 4-20 mA and 1-5 VDC available simultaneously.

The PCH 1106 Vibration Sensor has an excellent frequency response curve up to the promised 1000 Hz, so you are sure you will be monitoring the higher frequencies, like gear mesh or blade pass frequencies  without any damping in the signal.

ISO 10816-3, measuring parameters:
  • Velocity mm/s, 0-10/20/50/100 mm/s
  • Filter range 10-1000 Hz
  • True RMS detector
  • 4-20 mA / 1-5 VDC output
  • Article code PCH1106/CHF8112: 0-20 mm/s
  • Article code PCH1106/CHF8113: 0-50 mm/s

Other PCH 1106 measuring parameters:
  • Acceleration m/s²
  • Displacement mm Peak-Peak
  • Customized frequency ranges
Typical replacement article numbers: PCH1106/CHF5172, PCH1106/CHF8073, PCH1106/CHF8082, PCH1106/CHF8109, PCH1106/CHF8112, PCH1106/CHF8113, PCH1106/CHF8118, PCH1106/CHF8149, PCH1106/CHF8170, PCH1106/CHF8170, PCH1106/CHF8176, PCH1106/CHF8243, PCH1106/CHF8248, PCH1106/CHF8248, PCH1106/CHF8265, PCH1106/CHF8274, PCH1106/CHF8289, PCH1106/CHF8305

PCH 1106 T Temperature and Vibration Sensor

Vibration monitoring of a roller bearing is usually the best early-warning method to detect upcoming bearing damages. If your application also requires a temperature measurement, you can save the installation of a PT100 sensor with transmitter, when you use the PCH 1106 T.

Both vibration and surface temperature measurements are provided through dual 4-20 mA outputs, which make a separate PT100 transmitter redundant. For an ambient temperature range of -20 to +70 °C the instrumentation cannot get easier. The sensor is supplied in stainless steel 303 housing with an integrated M8 mounting stud and a M12 top exit connector.

PCH 1106 T features:
  • Measuring Velocity mm/s, 0-10/20/50/100 mm/s
  • Filter range 10-1000 Hz (ISO 10816-3)
  • Surface temperature 0-100 °C
  • True RMS detector
  • Dual 4-20 mA relative to vibration and temperature
  • Article code PCH 1106/CHF8243: 0-20 mm/s + temperature 0-100 °C
  • Article code PCH 1106/CHF8265: 0-50 mm/s + temperature 0-100 °C

Other PCH 1106 T variants:
  • Acceleration m/s²
  • Displacement mm Peak-Peak, 0-2.5/5/10/15 mm
  • Customized frequency ranges

PCH 1220 Vibration Guard

Are you looking for an electronic vibration switch, without any 4-20 mA output but just a relay, the PCH 1220 is a low cost solution for a basic protection application?
PCH 1220 constantly monitors the machine vibration within a 10-1000 Hz (ISO 10816-3) frequency band and compare the value to the preset alarm threshold.

You can use the PCH 1220 on fans, pumps and blowers, where you only need a digital alarm input and not a 4-20 mA reading. The vibration alarm is already preset, so installation is done easily.

The sensor is supplied in stainless steel 303 housing with an integrated M8 mounting stud and a M12 top exit connector.

PCH 1220 measuring parameter:
  • Velocity in mm/s
  • Frequency range: 10 to 1000 Hz (DIN/ISO 10816-3)
  • Alarm level in mm/s pre-set to individual requirement
  • Alarm relay with delay time
  • Status indicator through LED on the monitor
  • 4-pin M12 connector

PCH 1232 Vibration Guard (Modbus RTU)

Modbus RTU vibration sensorThe PCH 1232 vibration sensor offers full integration with Modbus RTU in a distributed RS 485 network.

For new automation projects or upgrades the integration by Modbus RTU is easily done and delivers much more vibration measurement data, than the classical 4-20 mA outputs can provide. Using several narrow filter bands will enhance the vibration monitoring for condition monitoring purposes as lower vibration amplitudes easier can be followed more thoroughly.

Up to 4 configurable filter bands monitor various critical machine components on your rotating equipment. Alarm levels and filter ranges are user configurable by the included PCH Vibration Studio.

PCH 1232 Vibration Guard features:
  • Measuring parameter: velocity mm/s or acceleration m/s², RMS or Peak
  • Frequency ranges: 10 to 1000 Hz or selectable HP/LP filters for narrow bands
  • Up to 4 configurable filter bands with scalar values
  • 2 alarm levels with individual delay times per filter band
  • 2 analog DC outputs 4-20 mA and 2 alarm relays
  • RS-485 and Modbus RTU communication
  • Setup by PCH user software PCH Vibration Studio through USB or RS-485
  • Self-test function can be activated externally

PCH 1270/1272 Vibration Guard (SIL 2)

Critical rotating machinery is often monitored by vibration sensors. Our PCH 1270/1272 Compact Vibration Guards compare the actual vibration level with the internal thresholds 10 times per second and makes it suitable for early warning or even for emergency shutdown of your machinery. Standard ISO 10816(10-1000 Hz) or customized filter ranges can be delivered. PCH1270/PCH1272 is ideal as part of the safety chain for dangerous machinery, where high accuracy and fast response time is important. PCH 1270/1272 complies to Functional Safety (EN13849), PL-d (SIL 2). A frequency response curve follows each calibrated Vibration Guard delivered by PCH Engineering. You can adjust the measuring range, vibration alarm levels, delay and hang times directly in the monitor with no use of PC.

PCH 1270/1272 Vibration Guard features:
  • Measuring parameter: velocity mm/s or acceleration m/s²
  • Frequency range: 10 to 1000 Hz or 1 to 30/300 Hz
  • 2 alarm levels with individual delay times and 2 alarm relays
  • Analog DC output RMS 4-20 mA, proportional to 0-100 %
  • Measuring range selectable: 10 to 100 mm/s or m/s² rms
  • Self-test function can be activated externally
  • Safety level SIL 2 rated, GOST-R certificate, ETL listed upon request
  • RS-485 version available as PCH 1272 for communication with PCH user software
Typical replacement article numbers: PCH1270/CHF5210, PCH1270/CHF5212, PCH1270/CHF5213, PCH1270/CHF8001, PCH1270/CHF8004L5, PCH1270/CHF8041, PCH1270/CHF8071, PCH1270/CHF8135, PCH1270/CHF8143L2, PCH1270/CHF8159, PCH1270/CHF8200, PCH1270/CHF8210, PCH1270/CHF8241, PCH1270/CHF8298L10, PCH1270/CHF8298L5, PCH1270/CHF8333, PCh1270/CHF8353, PCH1272/CHF8120, PCH1272/CHF8157, PCH1272/CHF8158, PCH1272/CHF8214, PCH1272/CHF8253, PCH1272/CHF8269, PCH1272/CHF8325L0, PCH1272/CHF8346

PCH 1275/1277 Vibration Guard (ATEX + SIL 2)

IECE and ATEX SIL 2 vibration sensorCritical rotating machinery is often monitored by vibration sensors. PCH 1275/1277 is suitable for zone 1/21 areas. The Vibration Guards compare the actual vibration level with the internal thresholds 10 times per second and makes it suitable for early warning or even for emergency shutdown of your machinery. Standard ISO 10816(10-1000 Hz) or customized filter ranges can be delivered. PCH1275/PCH1277 is ideal as part of the safety chain for dangerous machinery, where high accuracy and fast response time is important. PCH 1275/1277 complies to Functional Safety (EN13849), PL-d (SIL 2). A frequency response curve follows each calibrated Vibration Guard delivered by PCH Engineering. You can adjust the measuring range, vibration alarm levels, delay and hang times directly in the monitor with no use of PC.

PCH 1272/1277 Vibration Guard features:
  • Measuring parameter: velocity mm/s or acceleration m/s²
  • Frequency range: 10 to 1000 Hz or 1 to 30/300 Hz
  • 2 alarm levels with individual delay times and 2 alarm relays
  • Analog DC output RMS 4-20 mA, proportional to 0-100 %
  • Measuring range selectable: 10 to 100 mm/s or m/s² rms
  • Self-test function can be activated externally
  • Safety level SIL 2 rated, GOST-R certificate, ETL listed upon request
  • ATEX version suitable for zone 1 and zone 21
  • RS-485 version available as PCH 1277 for communication with PCH user software
Typical replacement article numbers: PCH1275/CHF5209, PCH1275/CHF8002, PCH1275/CHF8005L10, PCH1275/CHF8005L5, PCH1275/CHF8023, PCH1275/CHF8070, PCH1275/CHF8127, PCH1277/CHF8185, PCH1277/CHF8254, PCH1277/CHF8258
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