External Voltage Warning; Discharge Current Warning; The Menuing System; Test Menu - Megger DUCTER DLRO 10X Bedienungsanleitung

General Operation - DLRO 10X
under test. DLRO 10X checks for this continuity. If there is poor
continuity in either circuit a message will appear at the bottom of
the display. This will read "P OPEN CIRCUIT" if the voltage
contacts are high resistance, "C OPEN CIRCUIT" if the current
circuit is not made or "CP OPEN CIRCUIT" if both circuits are
inadequate. Check the contacts, since a measurement cannot be
made if any of these messages is visible on the display.

External Voltage Warning

If external voltage is applied to the terminals a message "EXT
VOLTS" will flash on the display. This is a warning that the item
under test is live and might be dangerous. A test cannot be
performed in this condition.
The "EXT VOLTS" message will flash if more than 50 V. is
applied between either voltage terminal and a current terminal. If
the voltage appears between just the voltage terminals or just the
current terminals the message will appear at 100 V peak or 5 V
peak respectively.
Please note - The message will only appear if a voltage
appears BETWEEN terminals. The message will not appear
if all terminals are at the same high voltage. The message
will not operate if the instrument is turned off.

Discharge Current Warning

A message CURRENT FLOW will appear if a current greater
than 1 mA is still flowing after a test is completed. This suggests
that an inductive load has been tested and is still discharging.
Do not disconnect the current loop while the discharge warning
is showing.

The Menuing System

Use the Left and Right arrows of the cursor control to highlight
the menu required. Press the Down cursor control to see the
options available on that menu. Select the required option using
the cursor control and press Enter to set that option. Depending
on the menu item selected the display will either present further
options or will return to the main menu screen.

Test Menu

This sub-menu selects the test mode. Only one mode can be
active at a time and the active mode is displayed below the
heading TEST. (See Test Modes later in this manual for details of
each mode.)

Options Menu

The Options menu has five options that are not related to each
other, as shown on next page
7