Data Reading; Rel Measurement - Sofamel IER-4000 Manual De Instrucciones

4.5. Data Reading

Data reading function of the meter allows you to check the historical measurement stored in the
meter.
(1) When the meter is standing by, press MEMO to call the display for data storage, with "MEMO"
glittering at the lower right corner of LCD; should the existing memory has been used for storage
of other data, "USED" would be shown on LCD when pressing MEMO to exit data storage.
(2) Press "ENTER" briefly to switch A bit of a memory position and 10-bit and the memory position
can be scanned by pressing "
(3) Press "ENTER" for 2 seconds to read a group of data in a memory if there are data stored before
in the memory.
4.6. REL—Relative Measurement
Relative measurement can be accessible only when the tester is used for measurement of earth
resistance. Press REL to switch the relative measurement mode with the normal one or vice versa.
(1) Under relative measurement mode, the symbol "REL" is shown on LCD and the existing reading
is stored in the memory for future reference. In the following relative measurement, what the
LCD displays is the difference between the input value and the reference value, that is, existing
reading=input value-reference value.
(2) Under normal measurement of earth resistance, it is not allowed to enter REL mode when the
measurement is progressing.
(3) It is not allowed to enter REL mode when the data is being read or stored.
(4) It is not allowed to enter REL mode when the existing reading exceeds the limit.
" or " ".
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Operation Instruction