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The Prover Simulator Board simulates the operation of a Bi-directional, Uni-directional or Compact Prover.  When in Bi- or Uni-directional mode, there are two prover volumes simulated.  In the Compact Prover mode, the volume detect switch output is an open-collector output.  The board is configured using the User Interface Board to enter the Prover Type (Bi-, Uni- or Compact), Volume 1 Pulses, Volume 2 Pulses and the Fourway Transition Time (Time to go from Reverse to Forward position and vice versa).  Other features include:
  • DIN Rail mounting
  • 24 VDC operation
  • All connections via plug and header, not terminals
  • Compatible with either Sourcing (24 VDC) or Sinking (0 VDC) Fourway or Launch Commands
  • Fourway Status and Volume Detect Switches can be configured to be High or Low Active
  • Analog Output for Fourway (or Transfer) Valve seal (4.00 mA = No Seal; 18.80 mA = Seal)
  • Launch Chamber Detect switches included
  • Status for Fourway Valve includes Open Limit Switch, Close Limit Switch, Local/Remote Status and Seal (Differential Pressure Switch)
  • SPST relays installed for Valve Status and Volume Detect Switches
  • Program Reset button included for initial wiring checkout.  Connections provided for remotely operated switch (dry contacts) for convenience
  • LEDs indicate Forward (Launch) and Reverse Commands
  • LEDs indicate Valve Status
  • LEDs included for each Volume Detect Switch
  • LED indicates when meter pulses are being received
  • LED included for open-collector (Compact Prover) Volume Detect Switch
  • LED flashes two times per second when CPU is operating correctly
  • Prover Type, Pulses per Prover Volume and Fourway or Transfer Valve timing configured through User Interface Board.  Configured values are stored locally in EEPROM
  • RS-232 interface to User Interface Board via Ethernet-type connector.  If the cable supplied with the User Interface fails of is lost, a replacement can be obtained locally.
  • Sixteen position rotary switch provided to generate errors and faults (Valve Failure, Seal Fail, Detect Switch Fail, etc.)