You can use the monitor’s standard setup out of the box. Or, if you wish, you can easily adapt the setup to your specific requirements using the PCH Vibration Studio software (comes complementary with the monitor).
We offer several versions and configurations to provide you with a suitable solution for your specific application.Read more about PCH Vibration Studio here.
Individual Setup of Channels, Accelerometers/Velocity Sensors
All measuring- and process channels can be individually configured by the user. For a typical accelerometer vibration input channel, you can configure:
- 2 active measuring bands per accelerometer
- Filter ranges from 0.7 to 11500 Hz
- Measuring units: Acceleration, Velocity or Displacement
- Detector as true RMS with adjustable averaging time, Peak and Peak-to-Peak. You can freely adjust the Peak detector with Attack and Decay times.
- 2 alarms per measuring band: Alert (pre-warning) and Danger (trip) alarms can individually be configured incl. delay times of up to 100 seconds.
If you need several measuring bands and fewer accelerometers, more channels can be connected to the same accelerometer. This setup is useful for monitoring individual gear mesh frequencies (GMF).
Individual setup of channels, proximity probes (eddy current):
Up to 4 factory configured, negative input channels (-24V) can be individually configured by the user. Various sensitivities are supported:
- Filter ranges from 0.7 to 11,500 Hz
- Measuring units Displacement as mils, µm or mm
- Detector as true RMS with adjustable averaging time, Peak and Peak-to-Peak. You can freely adjust the Peak detector by Attack and Decay times
- 2 alarms configurable: Alert (pre-warning) and Danger (trip) alarms can be individually configured incl. delay times of up to 100 seconds
- DC monitoring / GAP monitoring for actual position of the probe tip
- 4 alarms configurable for GAP monitoring
- The individual probe sensitivity as well as the linear range can be user configured
Configurable Alarm Settings
Alert (pre-warning) and Danger (trip) alarms can be configured for each measuring band and process input.
The Danger alarms can be guided to the mechanical SIL 2 relay for a single signal in the event of high vibration levels or to the digital outputs if configured as a relay.
Optionally, a PCH Relay Box can be added for up to 12 extra mechanical relay outputs.Read more under PCH Link Concept.
All alarms can be latched for a manual reset and, if not in use, the alarms can be held (Alarm Hold), allowing the controller time to react (0-100 s in 0.1 s steps).
You can configure the alarm as either High Level Alarms or Low Level Alarms (the alarm will alert you if vibrations higher than X and/or lower than Y are measured).
Inhibit Functions for NO-TRIP due to Resonances
If you know that resonances occur in your machine at a certain stage during Run-Up and Coast-Down, you can inhibit the alarms, either through a digital input signal or by using one of the process inputs.
For instance, if you know your machine will resonate and create strong vibrations during run-up, you can inhibit the alarms within that specific rotating speed, e.g. 500-700 rpm or higher for a turbine.
You can freely configure the inhibit window using the complementary software, PCH Vibration Studio.