1 Year Warranty
Description
Overview
Essential details：DVC2000 30MA-30VDC-100PSI MAX Digital Valve Controller
Integral mounting to the Fisher GX Control Valve and Actuator System Sliding-stem applications Quarter-turn rotary applications
The DVC2000 digital valve controller can also be mounted on other actuators that comply with IEC 60534-6-1, IEC 60534-6-2, VDI/VDE 3845 and NAMUR mounting standards.
Input Signal
Analog Input Signal: 4-20 mA DC, nominal; split ranging available Minimum Voltage: Voltage available at instrument terminals must be 8.5 volts for analog control, 9.0 volts for HART communication Maximum Voltage: 30 volts DC Minimum Control Current: 4.0 mA (below 3.5 mA may cause microprocessor restart) Overcurrent Protection: Input circuitry limits current to prevent internal damage
Reverse Polarity Protection: No damage occurs from reversal of loop current
Output Signal
Pneumatic signal as required by the actuator, up to full supply pressure
Minimum Span: 0.5 bar (7 psig)
Maximum Span: 7 bar (101 psig)
Action: Single Acting, direct
Supply Pressure(1)
Recommended: 0.5 bar (7 psig) greater than the maximum actuator requirements
Maximum: 7 bar (101 psig)
Supply pressure medium must be clean, dry air or noncorrosive gas
Per ISA Standard 7.0.01
A maximum 40 micrometer particle size in the air system is acceptable. Further filtration down to 5 micrometer particle size is recommended. Lubricant content is not to exceed 1 ppm weight (w/w) or
volume (v/v) basis. Condensation in the air supply should be minimized
DVC2000
lf you need to inquire or purchase ,please send the product models to my email or call medirectly .
sunny He
[Email] sales@xiongbagk.cn
[Mobile] 86-18059884797
[WhatsApp] 86-18059884797
[Skype] sales@saulcontrol.com
DVC2000 30MA-30VDC-100PSI MAX Digital Valve Controller
Restart Control Mode
Restart Control Mode (Restart Cont Mode) lets you choose which operating mode you want the instrument to be in after a restart. Follow the prompts on the handheld communicator display to define the restart control mode as Resume Last, Analog, or Digital.
Restarting the Instrument
Restart resets the instrument in the same manner as when power to the instrument is interrupted. When Restart is issued, all of the newly entered configuration variables become active. Otherwise, they may not take effect until the instrument is placed In Service.
Burst Mode
Enabling burst mode provides continuous communication from the digital valve controller. Burst mode applies only to the transmission of burst mode data (analog input, travel target, pressure, and travel) and does not affect the way other data is accessed.
Access to information in the instrument is normally obtained through the poll/response of HART communication. A handheld communicator or control system may request any of the information that is normally available, even while the instrument is in burst mode. Between each burst mode transmission sent by the instrument, a short pause allows the handheld communicator or control system to initiate a request. The instrument receives the request, processes the response message, and then continues “bursting” the burst mode data.
There are four burst mode commands. Command 3 is recommended for use with the Rosemount™ 333 HART Tri-Loop™ HART-to-analog signal converter. The other three are not used at this time.
Command 3 provides the following variables:
Primary variable—analog input in % or mA,
Secondary variable—travel target (valve set point) in % of ranged travel,
Tertiary variable—output pressure in psig, bar, or kPa,
Quaternary variable—travel in % of ranged travel.
To enable burst mode select Mode > Burst > Burst Enable. To send a burst mode command, select Burst Command. Burst mode must be enabled before you can change the burst mode command.
