AE System

Seismometer Options External display（ED74)

Model：ED74
Overall dimensions：92.8（W）×37.1（H）mm
Product weight：
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Product introduction
Technical parameters
Product accessories
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External display（ED74)

Indicates Acceleration, Seismic intensity scale, and Alarm generation time etc.

Display element

STN monochrome LCD

Display contents

Earthquake Monitor Screen	Current time （green ×black letters）
Earthquake Generation Screen	Earthquake Generation Time, Max. Acceleration, Seismic intensity scale （orange×black letters）

Effective display size

92.8（W）×37.1（H）mm

Back light

3 color LED back light（green, red, orange）
※Replacement not necessary

Power supply

DC24V

Multiple control unit　(2 out of 3) CU-5

An unit to improve the reliability of Alarm relay contact outputs: Alarm is sent out when 2 units out of 3 take such action.
Multiple control unit　(2 out of 3) CU-5

Action	2 out of 3 output circuit is provided for each of upper 5 steps. Such circuits send out the Alarm output when 2 units out of 3 are activated.
Alarm output	Upper 5 steps subjected 3. 3 c contacts for each Alarm relay contact output
Alarm reset	Automatic reset: when input is to less than 2 out of 3.
Alarm display	Display: Individual display for each of 5 steps Reset method: Manual reset (pressing Reset pushbutton)
Power supply	AC100V　50/60Hz　100VA以下
Size・Mass	W480×H149×D300mm　16kg