VAC Product News
January 2009

V200 Low Bleed-We will be adding a low bleed option to this product within the next couple of months. Compared to other spool valve units, the V200 already has a relatively low bleed rate, but this new spool valve will reduce the air consumption from .35 SCFM to around .2 SCFM at 87 PSI, a 40%+ reduction. The “trade off” that comes with this new low bleed is less delivery and gain. However, as energy and bleed rate become more of an issue, we will respond to the market with this low bleed option. We will add LB to the end of the ordering codes for this designation.

The standard V200 can be converted to a V200E-EX very easily. However, if furnished with internal feedback (switches or 4-20 mA) the feedback would NOT be EX rated-it is tempting to assume they are. Like the V100 we have the option to offer an adapter plate, which in effect, is a new cover that is pre-drilled to accept a third party switch. You can use Moniteur, Westlock, Topworx, or Stonel, or any other switch that has the same mounting pattern to one of the above. Just be sure to order the switch with the long Namur drive.

<<V200E-EX with ABB Ip and Westlock switch mounted.

NOTE: In the meantime we get a number of Control Air Ips returned and reported, “not working”. In many cases the customer has tampered with the Ip span and zero and the only problem is the unit is EXTREMELY out of calibration-all units are shipped pre-calibrated-do not adjust the Ip!! Adjust span and zero on the positioner.

V200 Calibration with
Feedback-We continue to have field issues (mostly education) with the installation and calibration of the V200 with position feedback. This can compromise one of the key positives about this product and which is how simple it is to add and calibrate the unit with feedback. We feel the manuals are pretty clear on the calibration, but will add more detail to our website under the troubleshooting section on our home page (look for man with toolbox!!). A few key things to keep in mind. 1.The positioner has to be accurately calibrated first, which is critical to having the transmitter output follow the calibrated positioner input. 2. Make sure to use the coarse adjustment to set the zero initially. 3.Check 20mA (span) and adjust span on the trim pots. 4. Go back to zero and set zero on the trim pot 5. Check 8-12-16 mA mid range positions. It may take 2-3 adjustments between various signal ranges to get the unit “fine tuned”.

Bailey Drive Kit-We are stocking an adapter kit that will fit/retrofit Bailey (ABB) drive with either a V100 or V200 product. Kit no. 350207 has a plate and fasteners (etc.) that will bolt on to the main Bailey drive-we have the spindle D17 (400015) that will adapt right to the drive-very clean and cost efficient. This kit, once again addresses the MRO/Retrofit market of installed products. ABB is “promoting” their digital solution + their retrofit kit is very expensive.

 

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