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The microprocessor controlled Spectrum Labs  S-3 Solvent Saver System is used to reduce solvent consumption when doing chromatography - having a significant impact on both the lab budget and the environment.

Features:

• Compatible with either 1 V or 10 mV detectors
• All wetted parts are made of Teflon® or Tefzel®
• Remote inputs for forced waste and forced recycle
• Auto-zero input
• Verify output to confirm valve operation
• Works with UV or RI detectors
• Programmable delay for allows for synchronization with the detector
• Programmable hysteresis eases work with noisy signals
• Recycle threshold may be set in 1% increments
• Operates in Coldrooms down to 0 °C

Specifications:
Power	115±25VAC, 14VA; 230±50VAC, 14VA
Line Frequency	45 to 64 Hz
Dimensions (without valve)	8.3” W x 6.7” D x 4" inches (21 x 17 x 10 cm)
Weight	2.2 lbs. (1 kg)
Hysteresis	0 to 9.9% full-scale in 0.1% steps
Set Point	0 to 0.5 V in .01 V steps or 0 to 5 mV in .1 mV steps
Signal Input	1 V or 10 mV full-scale (user selectable)
Remote Inputs	Contact closure or TTL low inputs for forced waste, forced recycle, or auto-zero
Remote Output	Open collector output to verify valve operation
Operating Temperature	0 to 40 °C non-condensing when left connected to mains