Summary of Contents for Brüel & Kjaer Vibro VIBROCONTROL 850
- Page 1 Instruction VIBROCONTROL 850 Single channel vibration monitor Keep it accessible for future reference.
- Page 2 Copyright © 2017 Brüel & Kjaer Vibro GmbH All rights to this technical documentation remain reserved. Any corporeal or incorporeal reproduction or dissemination of this technical documentation or making this document available to the public without prior written approval from Brüel & Kjaer Vibro GmbH shall be prohibited.
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Page 3: Table Of Contents
© Brüel & Kjaer Vibro │Instruction VC-850 Content Content Applications Hints for safety operations of VIBROCONTROL 850 Functionality 3.1 DIP-switches 3.2 How to get access to the set-up DIP-switches 3.3 Measuring Parameter (mm/s) 3.4 Measuring Range Full Scale 3.5 Frequency Bandwidth 3.6 Alert Alarm Trigger Level... -
Page 4: Applications
Any improper or non-intended use may lead to malfunctions of the VIBROCONTROL 850 or to unwanted effects in your application. If the VIBROCONTROL 850 is used in a way not described in the relevant user manuals, function and protection may be impaired and serious personal damage, death or serious, irreversible injuries may result. -
Page 5: Functionality
The VIBROCONTROL 850 provides a 4-20 mA DC output signal, which at any time expresses the vibration level relative to the chosen measuring range. -
Page 6: Dip-Switches
Do NOT commence the removal of the lid before the power has been switched off. In case the VIBROCONTROL 850 needs to have removed the lid for change of settings, make sure that the O-ring is in place and not damaged. -
Page 7: Measuring Parameter (Mm/S)
© Brüel & Kjaer Vibro │Instruction VC-850 Functionality Measuring Parameter (mm/s) The VIBROCONTROL 850 will be delivered with velocity in mm/s as the default parameter according to ISO-10816, which is the most common standard related to machine vibration. Measuring Range Full Scale In manual mode the full scale of the measuring range is selectable by the customer using two DIP- switches (1 &... -
Page 8: Alert Alarm Delay Time
When finished put the DIP-switches 3, 4 & 5 into the position Off – Off – Off, which will bring the VIBROCONTROL 850 back into normal monitoring mode with the new settings in place. Failing to put the DIP-switches 3, 4 & 5 in Off – Off – Off position after the setting is finished,... -
Page 9: Danger Alarm Trigger Level
When finished put the DIP-switches 3, 4 & 5 into the position Off – Off – Off, which will bring the VIBROCONTROL 850 back into normal monitoring mode with the new settings in place. Failing to put the DIP-switches 3, 4 & 5 in Off – Off – Off position after the setting is finished,... -
Page 10: Vibration Level During Self-Test
100 % (20 mA) to ensure that there will be a minimum of at least 20 mA at the analogue output whenever the Self-Test is activated. In order to test the integrity of the VIBROCONTROL 850, it's recommended that the Self-Test is carried out either manually or automatically (by e.g. a PLC-controller) on a regular basis. -
Page 11: System Failure
3.15 Latch Function The latch feature of the VIBROCONTROL 850 ensures that the alarm relay(s) stay triggered, even though the vibration level is reduced to below the alarm trigger level for longer than the hang time. Applying a GND signal to the “/ Latch alarms” wire can latch the relays. -
Page 12: Over Range
3.19 Alarm Output (relays) The VIBROCONTROL 850 is equipped with an Alert alarm relay, as well as a Danger alarm relay, each having a break mode function upon activation (= FAIL SAFE). This means that these relays are always in make mode, i.e. energized, while being in standby. This also means that the relays will be “activated”... -
Page 13: Light Emitting Diodes (Leds)
3.21 Self-Test Function The VIBROCONTROL 850 is provided with a Self-Test function that will remain activated for as long as the “/ Self-Test” wire is connected to the “GND” wire. The Self-Test can also be initiated by toggling the internal DIP-switch #7 from “Off” to “On”. The Self- Test will last for as long DIP-switch #7 remains in the “On”... -
Page 14: Measuring Direction
3.23 Measuring Direction The measuring direction of the VIBROCONTROL 850 is in the direction of the length axis of the cylindrical enclosure with no restriction in mounting angles. 3.24 Reset of Alarms When the vibration level is reduced below the Alarm trigger level, the Alert and Danger alarms will automatically disappear. -
Page 15: Mounting Of The Vibrocontrol 850
Mounted sensors must not be used as steps. The VIBROCONTROL 850 is only sensitive to vibration in the direction parallel to the length axis of the enclosure. For proper mounting of the Vibration Guard, a smooth flat surface, free of dirt and paint of min. -
Page 16: Cable Connections
Cable Connections The cable that is attached to the VIBROCONTROL 850 is made of PUR, i.e. an oil resistant type. It is single-shielded; it has a default length of 5 meters and has at the other end 12 open-ended wires. The meaning of each wire and their colors in the standard configuration are specified below. -
Page 17: Technical Data
Self-Test is higher than the alarm trigger level Sensor watchdog The VIBROCONTROL 850 is equipped with an internal Watchdog that continuously checks the functioning of the sensor. At a sensor failure the Danger relay is activated, and the Alert relay stays inactivated. - Page 18 Oil resistant, PUR, screened. 12 x 0,25 mm open end Cable Standard cable length: 5 m Enclosure material and dimensions Material: Stainless Steel Type 1.4305 (AISI 303) Dimensions: Height: 102 mm Width max, without cable gland: 47 mm Width across hexagon 41 mm Ingress protection IP66/68 -20 °C ≤...
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Page 19: Maintenance
Maintenance The VIBROCONTROL 850 VIBROCONTROL 850 is maintenance free. In case the VIBROCONTROL 850 needs to have removed the lid for change of settings, make sure that the O-ring is in place and not damaged. To re-assemble the lid, please carry out point 1) and 2) in reversed order. -
Page 20: Brüel & Kjaer Vibro ● October 2017 ● C106635002 / V01
Contact Brüel & Kjaer Vibro GmbH Leydheckerstrasse 10 64293 Darmstadt Germany Phone: +49 6151 428-0 Fax: +49 6151 428-1000 VC-850 ● C106635002 / V01 ● © Brüel & Kjaer Vibro ● Technical alterations reserved!