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Item # SA420, Digital Signal Conditioner


• DIN rail mount enclosure
• 0-10 VDC and 4-20 mA outputs
• Input frequencies to 10 kHz, 115 VAC standard,
• 220 VAC, 12 / 24 VDC optional
• LCD display for field adjustable calibration
• ETL approved to applicable UL and CSA standards


The SA420 interfaces with a wide variety of sensors and provides an analog signal directly proportional to the speed of a monitored shaft. The 0-10 VDC and 4-20 mA outputs can be sent to a chart recorder, digital display, PLC, loop controller, drive speed controller, or any other control or monitoring device. The wide voltage range and wave shape flexibility of the SA420 input circuitry allow it to translate signals from Hall Effect sensors, proximity switches, magnetic sensors, and a wide variety of other pulse generators, into analog outputs.



Speed Range

0 - 10000 rpm


12 or 24 VDC (specify)
230 VAC

35 mm DIN rail mounting rack (per meter)

Explosion proof sensing head

Explosionproof enclosure

NEMA 12 enclosure (8" x 6" x 6")

NEMA 4 enclosure (10" x 8" x 6")

NEMA 4X with window (10" x 8" x 6")

Waterproof gasket for XP sensing head


ISO 9001




SA420 Digital Signal Conditioner Data Sheet
(PDF, 2700KB)

Machine and Hazard Monitoring Systems
(PDF, 2047KB)