Model · Hansford Sensors

HS-421I Intrinsically safe 4–20 mA vibration sensor (velocity) + AC output

Intrinsically safe 4–20 mA vibration sensor (velocity) + AC output. 5 versions — compare the versions and choose the one to order.

HS-421I versions

Version	Cable exit	Connector / cable
HS-421I Intrinsically safe 4–20 mA vibration sensor (velocity) with additional AC output, top exit, PUR cable	Top exit	PUR cable
HS-421I Intrinsically safe 4–20 mA vibration sensor (velocity) with additional AC output, top exit, braided cable	Top exit	Braided cable
HS-421I Intrinsically safe 4–20 mA vibration sensor (velocity) with additional AC output, top exit, M12 connector	Top exit	M12
HS-421I Intrinsically safe 4–20 mA vibration sensor (velocity) with additional AC output, top exit, 3-pin MS connector	Top exit	3-pin MS
HS-421I Intrinsically safe 4–20 mA vibration sensor (velocity) with additional AC output, top exit, flame-retardant FR cable	Top exit	FR cable

As specified by the manufacturer. Version-specific parameters are on each variant's page.

Measured quantity: Vibration acceleration, Vibration velocity
Number of measuring axes: 1 axis
Measuring range — velocity: 10 / 20 / 25 / 50 / 100 mm/s (standard: 10)
Output type: AC (IEPE) — acceleration, 4–20 mA
Mounting thread: 1/4"-28 UNF, female (standard), 1/4"-28 UNF, male, Quick Fit, female, M6 × 1 mm, male, M8 × 1.25 mm, male, M10 × 1.5 mm, male
Electromagnetic compatibility (EMC): EN 61326-1:2013
Hazardous-area version: Intrinsically safe (Ex i)
Approvals and certificates: ATEX (EU)
Sensing element: PZT — compression
Case material: Stainless steel
Weight: 150 g (nominal)

Describe the machine, the mounting point and the system the signal goes to — we will recommend the cable exit, connector and cable type.