PCE Instruments PCE-ITM 20, Руководство пользователя

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Cables
Disconnect the cable from the line. Also disconnect opposite end to avoid errors due to leakage
from other equipment. Check each conductor to ground and /or lead sheath by connecting one
megohmmeter lead to a ground and /or lead sheather and the other megohmmeter lead to each
of the conductors in turn. Check insulation resistance between conductors by connecting
megohmmeter leads to conductors in pairs.
3.16 Autoranging/Manual Range Selection
When the meter is first turned on, it automatically goes into Autoranging. This automatically
selects the best range for the measurements being made and is generally the best mode for most
measurements. For measurement situations requiring that a range be manually selected, perform
the following:
1. Press the RANGE key. The “AUTO” display indicator will turn off.
2. Press the RANGE key to step through the available ranges until you select the range you want.
3. To exit the Manual Ranging mode and return to Autoranging, press EXIT
Note : Manual ranging does not apply for the Temperature functions.
3.17 MAX/MIN
1. Press the MAX/MIN key to activate the MAX/MIN recording mode. The display icon "MAX" will
appear. The meter left auxiliary display will display and hold the maximum reading and will update
only when a new “max” occurs. The display icon "MIN" will appear. The right auxiliary display
meter will display and hold the minimum reading and will u
pdate only when a new “min” occurs.
2. To exit MAX/MIN mode, press EXIT.