Specification :

Accelerometer
Axes: 3 (X, Y, Z)
Range: ±2g (X, Y)
+1g / -3g (Z)
Frequency Response: 0 ~ 20 Hz
Shock Protection: Level: 3000g, Duration: 0.5ms
Level: 10000g Duration: 0.1ms
Analog to digital converter
ADC Resolution: 12 bits
Digital value resolution: < 0.001g
Seismic (Earthquake) trigger
Criteria: STA/LTA and clamped slope value
STA Range: 0.1 ~ 100 sec
LTA Range: 0.1 ~ 100 sec
Clamped Slope 0 ~ 0.98G
Zero Adjustment Cycle: 30 ~ 43200 minutes
Seismic Event Time: 1 ~ 200 sec
Digital Output (Relay)
Quantity: 2
Trigger Level Setting: 0 ~1.96g
Type: Normal Open
Capacity: 0.6A DC
Action Time: The same with the Seismic Event Time
Power
Voltage: 10 ~ 30 VDC
Power Consumption: 3.5W

Communication
Modbus RTU: Supports RS-232 or RS-485
Protocol: 19200, N, 8, 1
Modbus TCP: Support 3 hosts at the same time
Response time < 50 ms
Modbus Station ID: Default 101, changeable
Modbus Function: Provide Function 3 and 16
Modbus Register Address: 100 ~ 158, 176~191
Register addresses 100~158 includes the information of accelerations, seismic event data, and seismic event trigger condition settings.
Register addresses 180~191 are used for setting IP address of this unit; and Addresses 176~179 are used for setting IP address of the Server.
Timing Adjustment
NTP Server: Defined by register addresses 171 ~ 174
Outlook
Size: 123 mm x 72 x 33 mm
Weight: 0.2 kg (not including the cable and power supply)
Environment
Operational Temperature: -10°C - 60°C
Storage Temperature: -20°C - 70°C