Factory Settings - HELIX GRANVILLE-PHILLIPS Convectron ATM Instruction Manual

Chapter 3
3.9

Factory settings

Table 3-8 Factory settings for relays
Relay Default setting
Relay 1 • Setpoint: Below 0.0 Torr vacuum chamber pressure
• State: Deactivated (resets relay 1 to deactivated state)
• Returning pressure hysteresis: 30 mV, not programmable
• Activation direction: Activates below vacuum chamber pressure setpoint (–), not programmable
Relay 2 • Setpoint: Activates at 0.0 Torr differential between Convectron gauge and atmospheric pressures
• State: Deactivated (resets relay 2 to deactivated state)
• Returning pressure hysteresis: 8 Torr, not programmable
• Activation direction: Activates above differential pressure setpoint (+), programmable by setting
38
Table 3-8 lists factory relay setpoint values and activation direction.
jumpers inside module
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Convectron ATM Vacuum Gauge Module Instruction Manual