User`s guide

RIGOL Chapter 1 Quick Guide

1-10 M300 User’s Guide

together to control the measurement.

Alarms/Ext Trig Interface

Note:

The Pin 5 outputs a TTL negative pulse with about 7μs pulse width each time the

measurement is completed. The output rate is dependent upon the actual

measurement rate. The maximum output rate is 1000 times per second.

In external trigger mode, Pin 6 accepts external trigger signal. The trigger can

have a pulse width equal to or greater than 2μs with specified edge. To

configure, press Config , select “External” trigger mode and select “Rising” or

“Falling” in Edge item. If the external trigger signal is continuous pulse, please

make sure the pulse period is larger than 100μs.

8 GPIB

The M300 conforms to the IEEE-488.2 standard. Via this interface, the M300 can

be controlled remotely via a PC with a GPIB interface.

9 Power Socket

The M300 can accept two kinds of AC power supplies. Use the power cord

provided in the accessories to connect the AC power supply to the instrument

via this socket.

CAUTION

Before connecting the AC power supply, select the correct voltage

scale using the voltage selector.

10 Power Fuse

The specification of the fuse of M300 is AC 250V T3.15 A. If a new fuse is

required, please refer to “To Replace the Fuse”.

CAUTION

Please use the specified power fuse and make sure that the fuse

seat is not short-circuited to avoid electric shock and fire.

Definition

Alarm 1 Output

Alarm 2 Output

Alarm 3 Output

Alarm 4 Output

Channel Closed Output

Ext Trig Input/Channel Advance Input

GND

Not Used