YOKOGAWA 2558A - Chapter 6 Calibrating the Frequency Meter; 6.1 Grounding the LO Terminal

6-1
IM 2558A-01EN
Calibrating the Frequency Meter
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App
Index
6.1 Selecting Whether to Ground the LO Terminal
(COMMON Terminal)
Procedure
CAUTION
If you select “no ground” (OFF), do not apply a voltage exceeding the withstand voltage to
ground (12 Vpk). If you do, the 2558A may malfunction.
French
ATTENTION
Si le dispositif cible n’est pas relié à la terre, relier la borne LO (ON) à la terre. Sans mise à la
terre (OFF), il existe un risque d’électrocution.
These turn off when the setting is confirmed.
3. Turn either dial to
select ON or OFF.
4. Confirm the setting.
2. Select EARTH.
1. Select SETUP.
1.
Turn the FREQUENCY dial to select SETUP.
The indicator corresponding to the selected SETUP range illuminates, and the frequency/phase angle
display area shows the SETUP menu.
2.
Turn the VARIABLE dial to select EARTH.
3.
Turn the deviation dial to select ON or OFF.
When you change the setting, all four preset indicators will illuminate.
4.
Flip the PRESET switch up or down.
The setting is confirmed, and all the preset indicators turn off.
When you turn it on, the LO TO EARTH indicator will illuminate.
Chapter 6 Calibrating the Frequency Meter