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ION PUMP HVFT / Connectors. Varian StarCell Solution (no longer commercially offered as standard). Gamma Vacuum SAFE-CONN Solution. ION PUMP HVFT. Gamma Vacuum HVFT Compact, protected HVFT Commercially available Reliable Connection Verification Safety. Varian StarCell HVFT
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ION PUMP HVFT / Connectors Varian StarCell Solution (no longer commercially offered as standard) Gamma Vacuum SAFE-CONN Solution
ION PUMP HVFT Gamma Vacuum HVFT • Compact, protected HVFT • Commercially available • Reliable • Connection Verification • Safety Varian StarCell HVFT • Known Corrosion problems • Corrosion problems at SLAC • Dan Wright has a stack of failed HVFTs in his office • SLAC tried gold coating to solve corrosion problem – unsuccessful • Leverage on connector applies to HVFT ceramic – breaks ceramic. • No longer commercially offered as standard
High Voltage Safety SAFECONN Safety Interlocking • Separate isolated interlock cable controls high voltage power • Eliminates exposed high voltage lead - Safety • Eliminates false vacuum readings when cable is not connected to pump – Connection Verification • Bakeable & radiation resistant
SAFE-CONN HV Cables • Standard HV Cables • 380046 3m • 380047 6m • 380048 10m • 380053 30m • 380091 100m • Other lengths and custom cables available
DIGITELTM Controllers DIGITELTM SPC Small Pump Controller • Single High Voltage Supplies • 15 mA Switching Design • Single Standard Setpoint • 2U, 1/3 Rack Packaging DIGITELTM MPC Multiple Pump Controller • Up to Two Independent High Voltage Supplies • Up to 4 HV connectors • 500 or 100 mA Transformer Design • 8 Standard Setpoints • TSP/NEG/ Bake Control Capability
System Protection Starting Protection - AutoStart • Ensures pump is properly started by calculating acceptable watts over starting period for specific pump • Automatic shutdown if pump is not operating correctly • Three Auto-restart attempts without user intervention Running Protection - AutoRun • Continuous wattage monitoring for specific pump • Low voltage cutoff for short and high current conditions
System Automation • AutoStart/AutoRun • Automatic switch over from starting to running parameters based on monitoring and pump size • Vacuum Loss Monitoring once operational • Auto-Power Recovery (Because of AutoStart/AutoRun) • Can be configured to initiate HV after power loss (maintain Vacuum) • Standard Computer Interface • All features are available for inquiry and control • RS232/422/485 • Eight Setpoints standard (4:TTL, 4:Relay) • TSP Automation capability (with Remote TSP Controller)
DIGITEL MPC Reliability • Transformer Design • Transformer based power supplies radiate less electrical noise and require less shielding than switching supplies. Switching supplies rely on high frequency capacitor charging to amplify the voltage, creating noise, possibly interference. • Quality Manufacturing & Design • Good, reliable HV designs are difficult, building a switching power supply increases difficulty and takes many more components (10X a transformer HV section). With more components the reliability is reduced. • Field Tested Operation
DIGITEL MPC Part Numbers • MPC-1-US220-232-N-N • Supply 1: 500-Pos-7KV-K4 • Supply 2: None • This is DIGITEL MPC with: • 1, 500mA HV section • 220V input voltage • Rs 232 communications (485 configurable) • No HV Enable option -N • No TSP Option -N • 4 SHV-10 HV outputs
DIGITEL MPC Part Numbers • MPC-2-US220-232-N-N • Supply 1: 500-Pos-7KV-K1 • Supply 2: 500-Pos-7KV-K1 • This is DIGITEL MPC with: • 2, 500mA HV sections • 220V input voltage • Rs 232 communications (485 configurable) • No HV Enable option -N • No TSP Option -N • 2 SHV-10 HV outputs (1 for each HV section)
DIGITEL MPC Part Numbers • MPC-2-US220-232-N-N • Supply 1: 500-Pos-7KV-K2 • Supply 2: 500-Pos-7KV-K2 • This is DIGITEL MPC with: • 2, 500mA HV sections • 220V input voltage • Rs 232 communications (485 configurable) • No HV Enable option -N • No TSP Option -N • 4 SHV-10 HV outputs (2 for each HV section)
SAFE-CONN 5V isolated transformer SAFE-CONN Board SAFE-CONN 1 SAFE-CONN 2 CPU Board Optical Isolation HV 1 HV1 to Pump 1 HV 2 HV2 to Pump 2
SAFE-CONN DIGITEL MPC Chassis SAFE-CONN Connection HV1 @ Pump 1 SMB Connector SAFE-CONN Isolated +5V HV1 SAFE-CONN Interlock HV 1 HV1 to Pump 1 SHV-10 Connector SHV-10 Connector SAFE-CONN Connection HV2 @ Pump 2 SMB Connector SAFE-CONN Isolated +5V HV2 SAFE-CONN Interlock HV 2 HV2 to Pump 2 SHV-10 Connector SHV-10 Connector
SAFE-CONN Isolated +5V HV1 SAFE-CONN Interlock SAFE-CONN DIGITEL MPC Chassis SAFE-CONN Connection HV1 @ Pump 1 SMB Connector SAFE-CONN Isolated +5V HV1 SAFE-CONN Interlock HV 1 HV1 to Pump 1 SHV-10 Connector “K1” SHV-10 Connector HV1 to Pump 2 SHV-10 Connector “K2” SHV-10 Connector SAFE-CONN Connection HV1 @ Pump 2 SMB Connector
SAFE-CONN • SAFE-CONN is a parallel, isolated 5 volt circuit that enables / disables HV. The connection order (Ground, HV pin, then HV enable) and dis-connection order (HV enable, HV pin, then ground) is important in the design. The +5V is isolated to eliminate interference of HV transients and HV shorting to the SAFE-CONN circuitry.