Test Products International 275 - Manual (Page 25)

25
E. Other Features
Non-Contact Voltage (NCV)
WARNING!
Never rely on the non-contact voltage function only. If a volt-
age is not detected, confirm there is no voltage by performing
a voltage measurement with the test leads. Failure to do this
could result in injury. The non-contact voltage feature works
best when testing single wires. Make sure the test leads and
temperature probe are disconnected while using the NCV fea-
ture.
Instrument set-up:
FUNC. BLACK RED
TEST LEAD
TEST LEAD
NCV N/A N/A
Measurement Procedure:
Remove the test leads and temperature probe prior to using the
NCV feature.
1. Turn the meter on to any range.
2. Press and hold the NCV button.
3. Put the arrow marked on the jaw close to the wire under
test.
4. If voltage is present the 275 will beep and the NCV LED
will illuminate.
5. If voltage is not detected, confirm the result by perform-
ing a voltage measurement as outlined earlier in this
manual.
Measuring Temperature
CAUTION!
Do not attempt to make a temperature measurement with the
test leads connected to the 275. Remove the test leads and
insert the K-type temperature probe.
Instrument set-up:
FUNC. BLACK RED MINIMUM MAXIMUM
TEST LEAD TEST LEAD READING READING
400ºF N/A N/A -40.0ºF 399.9ºF
1000ºF N/A N/A -40ºF 1000ºF
Measurement Procedure:
1. Remove the test leads from the input jacks.
2. Observing polarity, insert the temperature probe
into the Type K input jack.
3. Set the rotary switch to the appropriate function
for the temperature being measured.
4. Touch the temperature probe to the item to be
measured.
5 . Read the temperature on the LCD.
Note:The 275 will beep when no probe is connected to
the temperature input.
Optional Modes (See Other Features Section)
• D-H: Freezes the reading on the LCD.
• MAX/MIN: Records minimum and maximum measure
ments.
• REL: Enables temperature differential tests to be per
formed. See Application Notes section.