User Manual

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9.10 Setting the 8937 VOLTAGE/TEMP UNIT
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Measurement range 10℃/DIV 20℃/DIV 50℃/DIV 100℃/DIV
Upper limit of
measurement input
400℃ 800℃ 2000℃ 4000℃
Lower limit of
measurement input
-92℃ -184℃ -460℃ -920℃
0℃
500℃
-500℃
Thermocouple: T
Measurement inpu
t
range
When the measurement range is 50
℃/DIV and the thermocouple
measurement input range (-200℃ to
400℃) is exceeded
400℃
-200℃
When upper limit o
f
measurement inpu
t
range is exceeded
When lower limit o
f
measurement inpu
t
range is exceeded
-460℃
0℃
200℃
-200℃
When measuremen
t
input lower limit is
exceeded
-184℃
W
hen thermocouple measuremen trang
e
i
s exceeded
W
ithin thermocouple measuremen
t
r
ange
When the measurement range is 20℃
/DIV and the temperature is within the
thermocouple measurement range
input range, but the 20℃ /DIV
measurement input lower limit (-184℃
) is exceeded
NOTE
Measurement range and upper and lower limits of
measurement input
Note that the upper and lower limits of measurement input vary according to
measurement range. Waveform saturation will result if the limits indicated in
the table below are exceeded.
Examples of waveform display measurement according to measurement range
(Position: 50%, magnification/compression ratio: ×1, NORMAL screen, thermocouple: T)
・If ambient temperature changes suddenly, loss of thermal equilibrium can
result in measurement error. When this occurs, allow the unit to acclimate
to the new temperature for about one hour, then take measurements after
thermal equilibrium is reached.
・It is recommended that drift compensation be turned ON when using a
thermocouple with small thermoelectromotive force (sensor R, S or B) to
record over an extended period of time in an environment where ambient
temperature fluctuates.
・If the temperature input terminal is exposed to a strong draft, loss of
thermal equilibrium at the input may result in measurement error. When
taking measurements under such conditions, arrange the unit in such a
manner that the input terminal is protected for direct exposure to drafts.
・Upon resetting the system, the "Input Selection" item is set to Analog.