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Check that all power cables are properly connected

Switch the MAIN POWER to ON to power the rack


-or-
Older systems require turning on the UPS to power the rack

Turn on the system controller and monitor(s)

Wait 20 minutes for the temperature to stabilize

Fixture should NOT be connected to the Test Head


When first installing a RI Test System, make sure all the instruments in the rack are connected to the internal 48 Volt distribution block or the AC Power Conditioning Unit (PCU) or Uninterruptible Power Supply (UPS). Check that any external safety devices, such as circuit breakers or emergency off switches, are set to the "On" or "Operate" mode and that the main AC power supply cable(s) is plugged into the correct type of outlet. The system is configured at the factory for either 230 volt international standard AC power or US domestic 115 volt AC power. The system controller should always be turned on after or simultaneously with the main system rack, never before.

The Microwave Sources and RFIC Test Head all contain heater ovens to maintain stable elevated temperatures within their critical components. The temperature will take a minimum of 20 minutes to stabilize within the units and we recommend a minimum of TWO HOURS warm up time before attempting a calibration or any precision measurements. Even if the power is shut off for only a very short amount of time, the ovens will corrupt any measurements while they go through a startup phase by increases the temperature to accelerate the warm-up process.

ATTENTION! The 20 minute warm up time is required before running test plans, a minimum 2 hours before any calibration.

The Fixture should not be connected when turning the system on for the first time. It could be possible to damage the Fixture because the System Controller has not yet reset the states of the Testhead. The Fixture can be freely swapped while the system is idle or off, but a fixture should not be connected during startup or when restarting the test system.


Switching the RI System On and Off




To turn the system on, first move the switch labeled "MAIN POWER" to the "ON" position on the front of the system.

After turning on the PCU, Cassini systems will automatically start the system controller and power on the monitor.

To turn the system off, follow the RI System Software shut down procedure (described later), move the switch on the front panel to the 'OFF' position, then turn Off the PCU from the back of the system and remove the Fixture from the Test Head.

WARNING! Fixture should NOT be attached to the Test Head while powering on the system.

Power Conditioning Unit (PCU)



The Power Conditioning Unit (PCU) is standard equipment for all Cassini ATE systems. The power indicator light will illuminate when connected to the AC power mains. The 'Active' lights will glow green when power is being supplied to the system. Do not toggle the local/remote switch that is "locked down" to prevent tampering.

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