Programmable power supplies offer up to 135 VDC with 720-W output power rating; some with ±1 VDC from nominal, others adjust from 0 to 5 VDC and 0 to 135 VDC. All models provide constant voltage or constant current; include universal input, PFC, soft-start operation, Vout ok indicator, no-load operation. The PSW3000 Electronic Pressure Switch features four switching outputs plus 0 to 10 VDC or 4 to 20 mADC analog output, user-scalable bar graph, four-digit display showing reading plus set-point, 0 to 150 psi to 0 to 9,000 psi ranges.
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