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3-7
IM 701210-05E
Making Preparations for Measurements
3
Removal
1.
Check that the power switch is OFF.
2.
Loosen the screws holding the input module in place.
3.
Holding the handles on the top and bottom of the input module, pull out the
module.
LEDs on the Frequency Module
On the front panel of the frequency module (701280 (FREQ)) are LEDs for each
channel. These LEDs allow you to check the input condition of the pulse.
ACT
OVER
ACT
OVER
701280(FREQ)
LED
Illuminated in green: When pulse is applied
Illuminated in red: When the input voltage
level is over range.
Off: When pulse is not applied
Note
•
The LEDs on the frequency module illuminates in green when pulse is applied and red
when the input voltage level is over range. It is independent of the start/stop condition of
waveform acquisition of the DL750/DL750P.
•
If the frequency module preset (see section 5.19) is set to “EM Pickup (electromagnetic
pickup),” the LED does not illuminate in red even when the input voltage level is over
range.
3.3 Installing Input Modules