VAC V200P Installation, Operation And Maintenance Instructions
Also see for V200E: Installation, Calibration and Troubleshooting Manual
                        | |
Contents
| 
V200 POSITIONERwww.vacaccessories.com92026r155CAUTION: Beware of moving partswhen positioner is operated!CAUTION: Beware of parts withlive voltage!A voltage, which is normally notdangerous, is supplied to thepositioner.Avoid touching live parts and barewires as well as short circuiting liveparts and the housing.CAUTION: Do not dismantle apressurized positioner!Dismantling a pressurized positionerwill result in uncontrolled pressurerelease. Always isolate the relevantpart of the pipeline. Release the pres-sure from the positioner and the pip-ing. Failure to do this may result indamage or personal injury.CAUTION: Do not exceed thepositioner performance limitations!Exceeding the limitations marked onthe positioner may cause damage tothe positioner, actuator and valve.Damage or personal injury may result.1.3 Air quality recommendationsPoor air quality is one of the main causes ofpremature functional problems with pneumaticand electro pneumatic equipment. The pilotvalve and IP-converter are precision instru-ments, and are therefore the most sensitiveparts of the positioner.a) Water in the supply air is a natural occur-rence. This happens when air is compressed.The compression heats the air and the naturaldegree of water in the air can remain as mois-ture. When the air cools in pipes etc.the moisture condenses and becomes liquidwater. Large quantities can build and some-times flood small water separators. This ex-cess water will eventually reach the controlvalve and positioner. This can cause corrosiondamage to the IP converter, causing theunit to malfunction.We strongly recommend the use of waterseparators with adequate capacity. Coales-ing filters from a reputable manufacturer is aninexpensive way to help prevent unit malfunc-tions or failures, and add life to the product.These filters remove particles and moisturefrom air lines.b) Oil in the supply air usually is from the maincompressor. Oil can clog the small nozzlesand disturb the flapper in the IP-converter. Itcan also cause the gold plated spool to “drag”within the pilot valve. The result is poor controlor in the worst case, failure.c) Particles in the air usually occur becauseof corrosion. Dirt and particles can block thesmall nozzles of the IP-converter.They can also cause the pilot valve to mal-function. The unit may completely fail.To ensure normal operational safety with VACpositioner products, we recommend that a wa-ter separator and a <80 micrometer filter aremounted as close to the product as possible.If large amounts of oil are present an oil sepa-rator should be installed as well.To further increase operational safety, we rec-ommend that the working air is clean, dry andfree of moisture, water, oil, particles and othercontaminants, in accordance with the standardANSI/ISA– 7.0.01– 19961.4 Safety Instructions |
Related manuals for VAC V200E
manualsdatabase
Your AI-powered manual search engine