Vibro-meter 204-040-100-214

Description

Vibro-meter 204-040-100-214
When the VM600 is taken offline, the attached system and equipment are no longer
protected. Therefore, this procedure should only be undertaken by authorized personnel
respecting the overall plant operations procedures. There should be no need to remove the
equipment from site to perform these tests unless it is considered more convenient.
The offline proof test reveals any dangerous faults that might not be detected in normal
operation.
For a VM600 system the proof test must be performed every 5 years or less.
3.12 Repair and Maintenance
If the VM600 system is under maintenance or repair, then the attached system and
equipment may no longer be protected. Therefore, this procedure should only be undertaken
by authorized personnel respecting the overall plant operations procedures.
3.12.1 Guidelines for the proof test
3.12.1.1 Reset
1- Reset the system by performing a cold start. That is, turn off and then turn on the rack.
2- Verify the safety relay status by performing a continuity test.
3- Observe the diagnostic LEDs and note any abnormalities. Refer to the MPS hardware
manual for further information.
3.12.1.2 Threshold tests
These tests are essentially a sub-set of the site commissioning plan. As such, they will vary
widely depending on the number of channels configured, the sensor type, and so on.
The levels used have to be determined for each particular installation. An example for one
channel of a vibration alarm is given below.
1- Disconnect the IOC4T from the sensor cables.
2- Simulate an N1 vibration signal at a site specific frequency for 100% RPM.
3- Inject a signal at (0.8 x alarm level) and verify that the system does not trip.
4- Inject a signal at (1.2 x alarm level) and verify that the system does trip.

Technical Support
Vibro-Meter’s technical support team provide both pre-sales and post-sales technical
support, including:
1- General advice
2- Technical advice
3- Troubleshooting
4- Site visits.
NOTE : For further information, please contact Vibro-Meter (see 5.1 – Contacting Us).
5.3 Sales and Repairs Support
Vibro-Meter’s sales team provide both pre-sales and post-sales support, including advice on:
1- New products
2- Spare parts
3- Repairs.