Caution

Power Supply Back-up (Power Outages or Power Cord Disconnection)

When the power supply is stopped, the unit switches to the backup power supply without turning off the power. The unit automatically switches to the power supply in the following order of priority (starting from the highest priority): AC > DC > Internal backup battery.

(1)When the unit is backed up by the internal battery for 3 minutes or longer, to protect the recording media, the operation is stopped. Then, the unit starts the shut-down operation.

(2)The backup power supply may not be activated if the internal backup battery is not fully charged. c

The unit is shut-down in the following process of operation in which case both of more than 3 minutes passed or pressing the Standby key on the front panel to more than 2 seconds, during the back-up operating state.

(10 seconds at the maximum)

The screen display goes out. The standby lamp and other lamps on the front panel go out.

(The unit is completely shut down.)

Connection of Cables for IEPE Inputs

Be sure to make the input format settings while a signal source is not connected to the INPUT connector of the unit.

Use of IEPE inputs format *may damage the signal source as 24 V power is supplied to the INPUT connector.

*IEPE input format: The input format for using a sensor with built-in the pre-amplifier (IEPE type). In this unit, either TEDS mode, which acquires the TEDS data, or IEPE mode, which doesn’t acquire TEDS data, can be selected.

(4) (E)

SIR-3400H / SIR-3032i / SIR-3032W