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Proximity Probe Monitors for Shaft Rotation Measurements

You probably already know this:

When you can detect unhealthy vibration levels in your machinery, you can take corrective action before the stress creates any damage.

And you might also know that measuring and monitoring the vibration level of rotating machinery is a proven method of implementing safety measures.

But do you know the advantages of using proximity monitors as vibration sensors?

Here they are:
 
  • No direct contact with the vibrating surface, thus ideal for moving targets
  • Measures shaft dynamic motion
  • Measures shaft static position, i.e. gap
  • Flat frequency response from DC to 5 kHz
  • Simple calibration
  • Suitable for harsh (industrial) environments
     

A PCH Vibration Monitor to Go with Your Proximity Probes

All PCH Proximity Probe Monitors measure the dynamic vibrations as well as the GAP distance to target.

The SIL 2 vibration monitors from PCH support API 670 Eddy Current probes / Proximity probes for the monitoring of rotating shafts on turbines, rotary atomizers and general machinery equipped with sleeve bearings.

Need help finding the right monitor for your proximity probes?

Contact our experienced consultants here.
 

Proximity Probe Monitors

PCH 1072 Proximity Monitor (1-Ch)

PCH 1072 Prox
The PCH 1072 Mk2 can be configured for an API 670 proximity probe for surveillance of dynamic vibrations as well as for GAP measurements.

Both the dynamic vibration signal as well as the actual GAP measurements can be delivered through 2 individual DC outputs to a central controller.

The monitor offers 4 relays freely configurable for vibrations and GAP alarms. For optimal adjustment of actual sensitivity and GAP detection on site the user software PCH Vibration Studio offers an integrated GAP calibration tool.

Here are some more details:
 
Features:
  • 1-1000 Hz Filter range
  • 0-2000 um Peak-to-Peak
  • GAP monitoring
  • 4 alarm relays for dynamic and static alarms
  • 2 analogue outputs 4-20 mA
  • System failure relay (OK Relay)
  • RS232/RS485 communication port
     

 

PCH 1420 Proximity Monitor (4-Ch + 1)

PCH 1420
The PCH 1420 is flexible and can be delivered with up to four API 670 proximity probe inputs, speed sensor input and a process input 4-20 mA or 0-10 VDC.

The PCH 1420 can be factory configured for a combination of IEPE, API670 proximity probe, velocity probe or process inputs, making the vibration monitor ideal for meeting special OEM requirements for a single and compact SIL 2 safety monitoring system.

Upon request, the two embedded process inputs can be delivered for two additional proximity probes instead. One input may be used for axial displacement, and the speed sensor input can be modified for a Keyphasor as the input source for RPM (either with a negative or a positive power supply).

And that is not all.

The monitor offers four configurable outputs for either 4-20 mA or digital outputs as well as a redundant safety relay in accordance with ISO/EN 13849-1.

It is easy to set up the monitor using the user software PCH Vibration Studio via USB or RS-485.
 
Features:
  • 4 inputs for proximity probes
  • 1 process input 4-20 mA/0-10VDC, optional for axial displacement
  • 1 tacho input PNP/NPN/AC, optional for Keyphasor as speed input
  • 1-1000 Hz Filter range (adjustable)
  • 0-2000 um Peak-to-Peak (adjustable)
  • GAP monitoring 0-4.5 mm (adjustable)
  • Configurable alarms for dynamic and static alarms
  • 4 configurable outputs 4-20 mA or digital relay drivers
  • System failure relay (OK Relay)
  • Additional isolated relays can be added by PCH Relay Box
  • USB/RS485 communication port
     

PCH 1046 Proximity Monitor (4-Ch + 1)

PCH 1046The PCH 1046 is a high-quality proximity monitor at an affordable price. The monitor is designed for monitoring water, steam or gas turbines or any other type of machine requiring online vibration monitoring based on proximity probes.

The monitor is equipped with four vibration channels capable of monitoring X, Y, Smax and GAP. And it doesn’t end there. It can also be equipped with 1 extra, optional channel for case expansion monitoring (Z). A trigger input is present for offline orbit monitoring.

All parameter settings are made using the complementary Windows-based software CHT 1024.

Included in this software are various visualization possibilities including Graphical ORBIT.

Now, let us get down to details.
 
Features:
  • 4 inputs for dynamic proximity probes
  • 1 input for a static proximity probe (axial displacement)
  • 1 tacho input PNP/NPN
  • 1-1000 Hz Filter range (adjustable)
  • 0-2000 um Peak-to-Peak (adjustable)
  • Smax measurement of X and Y directions according to VDI2059
  • GAP monitoring
  • Configurable alarms for dynamic and static alarms
  • 5 outputs 4-20 mA
  • 6 alarm relays with Make og Break function
  • System failure relay (OK Relay)
  • 5 BNC connectors with buffered output
  • RS232/RS485 communication port
     
Smax

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