The Fisher DVC6200 digital valve controller can be installed on rotary and slide actuators from Fisher and other manufacturers. The installation process involves a number of steps including but not limited to ensuring that the stem stroke and rotation Angle match the requirements of the DVC6200, and correctly connecting the air source pressure and electrical interfaces.
1.Valve stem stroke and rotation Angle: DVC6000 series digital valve controller valve stem stroke and rotation Angle need to match the requirements of the actuator. For example, for the single and double acting types of DVC6030AC and DVC6030HC, the stem stroke can be 0-102mm (4 inches) or 0-606mm, and the minimum rotation Angle can be 0-50 degrees or 0-90 degrees.
2.Input signal: DVC6200 series controller accepts 4-20mA DC analog input signal, minimum control current is 4.0mA. In addition, it supports a voltage input of 30 volts DC, has reverse polarity protection, to prevent reverse loop current from damaging the meter.
3. output signal: The output pneumatic signal of the controller can reach 95% of the air source pressure. The minimum range of is 0.4bar (6 psig) , and the range of is 9.5bar (140 psig) . The recommended source air pressure shall be 0.3bar (5psig) higher than that required by the actuator, a maximum of 10.3bar (150psig) or the lower of the actuator pressure rating.
4.connection: air supply pressure interface is 1/4 inch NPT female thread, output pressure is also 1/4 inch NPT female thread. 3/8-inch metal pipes are recommended as pipes. exhaust port ( remote empty) also 1/4-inch NPT female thread. Electrical connections are made via a female thread of a 1/2-inch NPT threaded conduit, M20 adapter optional.
Attention:
Installing the Fisher DVC6200 digital valve controller onto the Fisher slide stem and actuator requires that the stem stroke, rotation Angle, input and output signals, and the correct connection are matched to the actuator requirements.
In addition, because the DVC6200 supports HART communication, can be easily retrofitted to the actuator, to replace the existing analog positioners on most Fisher and non-Fisher pneumatic actuators.