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Earth/Ground Tester
Advanced Operation
19
Measurement Loop
This loop is entered by pressing the "START TEST" button. After releasing "START
TEST" the last measured value stays on the display. By repeated pressing of the
"DISPLAY MENU" button all supplementary values can be called. If a measured value
exceeds or falls below the pre-set limit, the limit can be displayed as well (with "DISPLAY
MENU"). In that case the measured value is diplayed with a flashing "LIMIT" whereas the
limit value is displayed with a steady "LIMIT"-symbol.
Inside the measuring loop parameters cannot be changed.
Further possibilities of button operation:
Warning sound () cancel with "DISPLAY MENU" (with display switchover) or with
"CHANGE ITEM" or "SELECT" button (without display switchover).
Correct Measurement Connection (Socket Allocation) Check
The instrument implements an automatic check, corresponding to the measurement
selected, to see if the correct input sockets are used.
The display symbols and
are assigned to a specific socket as shown in
Figure 4.
From the way the symbols are displayed, the validity of the connected wiring can be
concluded by the following features:
• socket incorrectly wired (or, by mistake, not wired): corresponding symbol flashes.
• socket correctly wired: corresponding symbol is steady active
• socket with no connection: corresponding symbol is blank
Interference - Voltages and Frequencies Measurement
This measuring function detects possible interference voltages and their frequencies.
This function is automatically active in every switch position before an earthing or
resistance measurement. If the pre-set limit values are exceeded, the interference
voltage is indicated as too high and a measurement automatically prevented. The
frequency of an interference voltage is only measurable if the level of this interference
voltage is higher than 1 V.
Bring central rotary switch in desired position, read out measured value of interference
voltage, measured value of interference frequency is displayed with "DISPLAY".
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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