Sigma SQC-122c manual Chapter Quick Start Installation

Chapter 1 Quick Start

1.5Installation

WARNING: Care should be exercised to route SQC-122c cables as far as practical from other cables that carry high voltages or generate noise. This includes other line voltage cables, wires to heaters that are SCR-controlled, and cables to source power supplies that may conduct high transient currents during arc down conditions.

Rack Installation

Power Connection

Sensor Input Connections

Source Output Connections

Digital I/O Connections

Computer Connection

The SQC-122c occupies a 5.25” high, half-rack space. An optional installation kit is available to adapt to a full rack (see Chapter 4). Install the unit in a 19” rack with the supplied hardware.

The SQC-122c automatically detects mains voltages of 100- 120 and 200-240VAC, 50/60Hz.

WARNING: Verify that the power cable provided is connected to a properly grounded mains receptacle.

Connect the BNC cables and oscillators from your vacuum chamber feedthrough to the desired SQC-122c sensor inputs.

Connect the BNC cables from the SQC-122c output connectors to your evaporation supply control input.

Refer to Appendix C for details on wiring digital I/O to the SQC- 122c Relay I/O connectors.

If you would like to use the Windows software to collect data or program the SQC-122c, attach a 9 pin straight-thru cable from the RS-232 connector to your computer’s serial port.

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