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INSTRUCTION MANUAL
CVS 1200 Pneumatic
Positioner
Linear and Rotary
Introduction
The CVS 1200 Pneumatic Positioner is
available in both Linear and Rotary
configurations.
Valve stroke is accurately controlled
through pneumatic input air pressure signal
from 3-15 psi or 6-30 psi.
Features
- Easily Maintained
- Zero and Span are simple to adjust,
providing precise calibration
- Simple Feedback connection
- Fast and Accurate response
- Low air consumption
- Simple to convert from direct acting to
reverse acting, or vice versa
Rotary
CVS 1200 Valve Positioner
- Split range control easily adjusted without
the need to change parts
- Vibration resistant design
- Restricted pilot valve orifice kit for small
actuators to protect from hunting
- NAMUR mounting dimensions
- Versatile tubing connection in any
direction
Linear
1
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Summary of Contents for CVS Controls 1200
- Page 1 INSTRUCTION MANUAL CVS 1200 Pneumatic Positioner Linear and Rotary Introduction The CVS 1200 Pneumatic Positioner is Rotary Linear available in both Linear and Rotary configurations. CVS 1200 Valve Positioner Valve stroke is accurately controlled through pneumatic input air pressure signal from 3-15 psi or 6-30 psi.
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Page 2: Specifications
Hysteresis 1% F.S. Sensitivity ±0.2% F.S. ±0.5% F.S. Repeatability ±0.5% Air Consumption 3 LPM (Sup = 20 psi, 1.4kgf/cm Flow Capacity 80 LPM (Sup = 20 psi, 1.4kgf/cm Housing Material Aluminum Alloy Approx. Weight 3.7lb (1.7kg) CVS 1200 Linear Positioner... -
Page 3: Installation
9. Apply air to actuator until travel is Installation 100%. Inspect to ensure travel arm is Linear: not touching stopper on back side of the positioner. If so, adjust link 1. Mount bracket with two 5/16”x1” bearing bolt on travel arm bolts to actuator. - Page 4 CVS 1200 positioner will not shake alignment of the actuator stem may from vibration or any other impact. lower durability of the CVS 1200 due The direction of the bracket is to excessive force on the main shaft determined by the operating of the positioner.
- Page 5 Pneumatic Input Adjustment Procedure: Factory setting for input is 3-15 psi. The CVS 1200 Positioner is easily changed to 6-30 psi. 1. Ensure air supply is removed from unit. 2. Using a 7mm wrench, loosen lock nut on threaded shaft.
- Page 6 Linear and Rotary: Zero Adjustment- 1. Set signal to the stroke starting signal (3 psi) then turn the Zero Adjuster clockwise or counter clockwise accordingly. 2. In the case of a spring actuator, check to see if it is set to standard pressure in zero point.
- Page 7 Auto/Manual Switch- 1. Factory setting is Auto. To use manual operation, turn A/M Switch counterclockwise. 2. In manual operation, the pressure of a CVS regulator connects to actuator. After using, return switch to Auto/Manual Switch “A”. Seat Adjuster- The Seat Adjuster is adjusted and set prior to shipment for balanced Seat Adjuster Lock Screw...
- Page 8 Ensure that dust and debris does not enter the port hole when installing the output orifice. Should hunting not be resolved by installing output orifice, contact a CVS Controls Representative. Actuator Output Orifice Part Number Volume Diameter Below 90 cm Contact CVS 90 –...
- Page 9 CARE Ensure the supply air is clean and free Large vibrations may cause improper from debris. operation of the CVS 1200 positioner. Should the pilot valve be Extreme conditions outside of the disassembled, apply grease to the operating temperature range may sliding section.
- Page 10 NOTES:...
- Page 11 NOTES: CVS Controls Ltd. strives for the highest levels of quality and accuracy. The information included in this publication is presented for informational purposes only. CVS Controls Ltd. reserves the right to modify or change, and improve design, process, and specifications without written notice.
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