iET PRS-300 Series, Руководство по эксплуатации, Страница: 22 / 50

OPERATION
PRS-300 Series
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This emf will not be re fl ected if an ac
measurement instrument is employed, and
can be eliminated by using a meter with “True
Ohm” capability. In other cases, the emf may
represent a very small component of a dc resis-
tance measurement.
3.5 Environmental Conditions
The PRS is built, calibrated and intended
for use in a laboratory environment with a
nominal ambient temperature near 23
o
C. The
accuracy of the unit may be affected when
operated in non-laboratory environments. Al-
ways allow the instrument to stabilize at room
temperature after unpacking or relocating the
instrument. Humidity should be maintained at
laboratory conditions.
3.6 Remote Operation
When the PRS is in REMOTE with front
panel locked out an REM indication will be
shown in the top right of the display.