The Auto-Flow system is designed specifically for the fume hood, laboratory, and clean room market. One of the keys to the superior response speed of the Auto-Flow system is the HC2*, a microprocessor-based, high-speed controller for fume hood applications.

While the HC2 provides stand-alone control, it is fully compatible with the complete range of Auto-Flow laboratory and fume hood control products. For stand-alone operation, the SOLOPro* software interface package can be used for initial system configuration, system monitoring, or changing setpoints.

	2 Analog Inputs For Sash Monitoring: 5 Vdc, 8-bit resolution
	1 Analog Input For Face Velocity: 5 Vdc, 0-10 Vdc, 0-20 mA (switch selectable), 16-bit resolution
	2 Analog Inputs For Exhaust Flow & Auxiliary: 5 Vdc, 0-20 mA (switch selectable), 12-bit resolution
	1 Pulse Input: 5 VDC, 15-bit resolution, 35 ms time period
	5 Digital Inputs: external emergency button, sash limit, and actuator faults
	Input Protection: R-C filter plus automotive-grade transient clamp device
	Pulse Input Protection: magnetically and optically isolated

	1 Digital Output For External Alarm: 24 Vdc, 0.5 A, current sinking
	2 Analog Outputs For Exhaust and Auxiliary Dampers: 10 Vdc/0-20 mA current sourcing, 12-bit resolution
	1 Digital Output for Automatic Sash Closure: 120 Vac, 2.0 A, Form C
	1 Pulse Output For Cascade Flow Totalization: 5 Vdc, 15-bit resolution, 35 ms time period