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Seismic monitoring system with display (SW-74) Item No:Seismic monitoring system with display (SW-74)

Seismic monitoring system with display (SW-74)Item No:Seismic monitoring system with display (SW-74)

A popular seismometer with display

SW-74 uses high resolution servo accelerometer which can detect micro earthquakes

ItemSpecification
Display element STN monochrome LCD with touch switch / back light color : green / orange / red
Display
contents
Earthquake monitor display Present time
Earthquake generation display Earthquake generation time, maximum acceleration, seismic intensity scale, alarm operation
Alarm hold display Avobe + reset button (whole reset of alarm / buzzer)
Setting display Trigger, alarm, date & time
Maintenance display Pickup test, earthquake history
Alarm and buzzer Upper limit 3-step (ALM1– 3), individual setting, buzzer for point,
Acceleration : 0.1– 999.9 gal (setting interval : 0.1 step, 0.0 is alarm operation OFF)
Alarm and buzzer
reset method
a. Automatic reset by an internal timer 1 – 9999 sec. (setting interval 1 sec., 0 is automatic reset OFF)
b. External reset terminals (all steps reset by non-voltage [a] contact)
c. Reset button on the touch panel (effective on display alarm)
FAULT alarm (Power failure)1a / 1b contact switching type
Contact rating : 2 A 30 VDC (maximum allowable voltage / current : 220VDC/2A)
Serial output For maintenance (conforms to RS232C ) : MC1 (switch over)
For external display (conforms to RS422) : MC2
For printer (conforms to RS232C) : MC2
Back up unit Backup time > 10 min. (ready time), charging time < 48 hours
(no function at the operation by optional power 24 VDC )
Mounting method Wall hanging
Operational temperature
range
0 to + 50 °C
Operational humidity range 0 to + 50 °C
10 to 85 %RH (non-condensing)
Power supply AC 100 V ± 10 %, less than 50 VA / DC2 4 V ±10 %, less than 35 W (option)
Mass Aprox. 3 kg