Appendix 9 Frequently Asked Questions
A
21
Appendix
Here are some common questions and answers about the instrument and measurement
units.
Appendix 9 Frequently Asked Questions
Questions about measurement units
(Wireless Voltage/Temp Unit and Wireless Universal Unit)
Question
Remedial Action
Reference page
Can measurement units be
mounted on a wall?
Measurement units can be mounted on
the wall using the included mounting
bracket.
How to measure the temperature
of an object having applied
voltage?
This application is supported. Since the
maximum voltage between channels is
300 V DC and the maximum terminal-to-
ground voltage is 300 V AC/DC for both
the Wireless Voltage/Temp Unit and the
Wireless Universal Unit, be sure not to
exceed either of these values. If the pos-
sibility exists that either value will be ex-
ceeded, use an ungrounded
thermocouple or other means to keep
the units from being exposed to a volt-
age.
"4.1 Confirming Mea-
sured Values, and
Starting Measurement"
(p. 111): WARNING
Is current measurement
available?
Measure by connecting a 250
resistor
b and - input terminals.
"Connecting a 4 to 20
mA Output Device and
Recording Average
Values Every Min-
ute"(p. A29)
What is the maximum measuring
time using the battery pack?
The maximum measuring time is ap-
proximately 24 hours (after being fully
charged with a recording interval of 100
ms, reference value at 23°C) or approx-
imately 120 hours (after being fully
charged with a recording interval of 1
min., reference value at 23°C). The lon-
ger the recording interval, the more time
measurement can be performed on bat-
tery power.
"2.1 Using the Battery
Pack (Option)" (p. 41)
How to minimize thermocouple
measurement error when moving
the measurement unit between
places with much different tem-
peratures?
For thermocouple measurements, ter-
minal temperature is measured by an in-
ternal sensor to provide reference
junction compensation. When the ambi-
ent temperature changes abruptly, or
when air blows directly on the terminals,
errors occur due to thermal imbalance
between the terminals and temperature
sensor. When the instrument is moved
to a location with significantly different
ambient temperature, allow at least 60
minutes for thermal equalization before
measuring.
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Страница 12: ...Contents x...
Страница 32: ...Operating Precautions 20...
Страница 78: ...2 7 Compensating for Input Circuit Offset Zero Adjustment 66...
Страница 122: ...3 10 Viewing and Editing with the All Channel Settings List 110...
Страница 138: ...4 3 Marking Waveforms and Searching Marks Search Function 126...
Страница 222: ...9 4 Synchronous Measurements with Multiple instruments 210...
Страница 316: ...13 3 Disposing of the instrument 304...
Страница 360: ...Index Index 4...
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