Hansford SensorsHS-420 seriesVibration velocity (mm/s)
HS-420 4–20 mA vibration sensor (velocity), top exit, M12 connector
Output: 4–20 mA (vibration velocity), M12 connector.
- Output 4–20 mA
- Exit Top exit
- IP IP68
- Connector M12
Technical data is taken from the manufacturer's documentation. Before ordering, please confirm the parameters against the current datasheet or with our engineer.
HS Sensors · HS-420 · as of 07/10/2026
Key features
- For use with PLC / DCS systems
- Can be configured for the application
- Piezoelectric element in compression design
Technical specifications
Parameters as specified by the manufacturer.
| Measured quantity | Vibration velocity |
|---|---|
| Number of measuring axes | 1 axis |
| Measuring range — velocity | 10 / 20 / 25 / 50 / 100 mm/s (standard: 10) |
| Output type | 4–20 mA |
|---|
| Cable / connector exit | Top exit |
|---|---|
| Connector | M12, 4-pin |
| 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 |
| IP rating | IP68 |
|---|---|
| Operating temperature | −25 … +120 °C |
| Electromagnetic compatibility (EMC) | EN 61326-1:2013 |
| Sensing element | PZT — compression |
|---|---|
| Case material | Stainless steel |
| Weight | 150 g (nominal) |
| Features | For PLC / DCS systems |
| Model | HS-420 |
|---|---|
| HS Sensors part no. | HS-420-TOP-M12 |
| Manufacturer's product name | HS-420 – Top Exit – 4 Pin M12 4-20mA Output Accelerometer |
Documentation
- HS-420 datasheet (metric units)PDF · Datasheet · EN · 84.5 KB · TS029.12
- HS-420 datasheet (imperial units)PDF · Datasheet · EN · 83.9 KB · TS029U.8
- HS-420 user manual (HS-420S and others)PDF · Manual · EN · 275.6 KB
- Integrated display — documentationPDF · Manual · EN · 1.2 MB
- Stud and pad mounting instructionsPDF · Installation guide · EN · 429.3 KB
- HS-420 3D CAD modelZIP · 3D CAD model · EN · 136.8 KB
Other HS-420 versions
All HS-420 variantsThe same model with a different cable exit, connector or cable type.
- HS-420 4–20 mA vibration sensor (velocity), top exit, FEP cable with conduit
- HS-420 4–20 mA vibration sensor (velocity), top exit, halogen-free HFFR cable
- HS-420 4–20 mA vibration sensor (velocity), terminal head, flame-retardant FR cable
- HS-420 4–20 mA vibration sensor (velocity), top exit, flame-retardant FR cable
- HS-420 4–20 mA vibration sensor (velocity), top exit, PUR cable
- HS-420 4–20 mA vibration sensor (velocity), top exit, braided cable
- HS-420 4–20 mA vibration sensor (velocity), top exit, 2-pin MS connector
Where it is used
Typical applications
- Fans
- Electric motors
- Pumps
- Compressors
- Centrifuges
- Conveyors
- Air handling units
- Gearboxes
- Rolls
- Dryers
- Presses
- Cooling systems
- HVAC systems
- Spindles
- Machine tools
- Process equipment
Industries
- Metals Continuous vibration velocity measurement in the PLC — trend logging and alarms.
- Cement Monitoring fan and motor unbalance in the PLC system (4–20 mA).
- Pulp and paper 4–20 mA sensor for integration with the paper machine control system.
- Marine 4–20 mA signal for on-board controllers and alarm systems.
- Mining and quarrying 4–20 mA (vibration velocity) — monitoring fan and motor unbalance in the PLC.
- Wind energy 4–20 mA signal for turbine control systems and SCADA.
- Food and beverage Continuous 4–20 mA monitoring directly in the PLC.
- Pharmaceutical 4–20 mA for air handling units (AHU) and BMS.
- Rail 4–20 mA sensor for on-board and trackside PLC systems.
- Oil and gas 4–20 mA for PLC, DCS and SCADA systems.
- Power generation 4–20 mA sensor for continuous monitoring in power plant PLC and DCS systems.
Categories
Cables and accessories
Related products
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Guides
- Vibration velocity or acceleration — what should you measure?Displacement, velocity and acceleration describe the same motion, but each of them emphasises a different frequency range. We explain when to measure velocity in mm/s RMS, when acceleration in g and the envelope, and when displacement.
- How to choose a vibration sensor for your machineChoosing a vibration sensor starts with the question of where the signal will go. Step by step, we cover the output type, measured quantity, sensitivity, frequency range, operating conditions, connection type, mounting and number of axes — with a checklist at the end.
- IEPE accelerometer or 4–20 mA transmitter? A comparisonAn IEPE accelerometer delivers the full vibration signal for analysis, while a 4–20 mA transmitter delivers a single overall value to the PLC. We explain how both types work, how they differ and when a dual-output sensor is worth using.
