Ref: SHAKE SS300

SHAKE SS300 – Triaxial seismic switch with 3 relays

Triaxial seismic switch for automatic safety shutdown
X / Y / Z MEMS accelerometer
Measurement range ±2 g
Detection based on PGA, PGV and seismic intensity
PGA / PGV / STA-LTA algorithms
3 independent relays for safety commands
Fixed sampling rate 200 SPS
RS-485 Modbus RTU communication
Floor or wall mounting
Storage of the last seismic event

Delivered within 5 to 6 weeks

Overview

The SHAKE SS300 is an intelligent seismic switch designed for earthquake detection and automatic equipment shutdown.

Its triaxial MEMS accelerometer measures motion along the X, Y and Z axes. The system analyses in particular the PGA, PGV and seismic intensity to determine whether a safety action should be triggered.

Three independent relays allow direct control of a machine stop, a gas valve, a pipeline, an alarm or any other safety function.

RS-485 Modbus RTU communication also allows the SS300 to be integrated into a PLC or an existing control architecture.

Seismic detection

The SHAKE SS300 can trigger its relays based on several criteria:

PGA – Peak Ground Acceleration
PGV – Peak Ground Velocity
STA/LTA
seismic intensity

Several intensity scales are available, including MMI, JMA, KMA, GBT and CWB.

The built-in filtering helps limit the influence of artificial vibrations during detection.

Relays and safety shutdown

The SS300 features 3 isolated mechanical relays, independently configurable.

They can, among other things, control:

a machine stop
valve closure
equipment shutdown
a local alarm
a PLC input
an emergency procedure

The relays can be monitored, tested or reset via Modbus RTU.

Applications

The SHAKE SS300 is particularly suitable for:

elevator safety shutdown
automatic gas valve closure
pipeline protection
production line shutdown
safety shutdown of industrial equipment
protection of sensitive installations
triggering of emergency procedures

FAQ

What is a seismic switch used for?
It detects a seismic event and can automatically trigger a safety action when the configured thresholds are exceeded.
Can the SHAKE SS300 directly stop a machine?
Yes. It features 3 independent relays that can be integrated into a control or safety chain.
Which parameters can trigger the relays?
The relays can be configured based on the PGA, the PGV or various seismic intensity scales.
Can it be integrated into a PLC?
Yes. RS-485 Modbus RTU communication allows it to be integrated into a PLC or an industrial control system.

: Vibration
Application: Geotechnical, Ground, Civil Engineering, Building