80
Setting Measurement Conditions
5
Select the reference junction compensation setting.
Internal
Implements reference junction compensation inside the instrument.
This setting is made when a thermocouple (or compensating lead wire)
is connected directly to the instrument. The measurement accuracy is
the value obtained when the temperature measurement accuracy and
reference junction compensation accuracy are added.
External
Does not implement reference junction compensation for this instrument.
This setting is made when a reference junction compensator (0°C ice
water, etc.) is externally connected. The measurement accuracy is the
temperature measurement accuracy only.
Disconnection detection
• When disconnection detection is set to ON, a fine current is input at the specified
recording interval during thermocouple measurement and a thermocouple
disconnection is detected.
•
As a disconnection is detected at a different timing to measurement, disconnection
detection does not affect measurement values.
•
Disconnection detection cannot be set at a recording interval of 100 ms.
• When using an extended thermocouple for disconnection detection, use a
thermocouple with a large wire diameter. When the +f.s. temperature is measured
and the resistance value of the thermocouple exceeds the following value,
sometimes a disconnection is detected.
Thermocouple K: 960
Ω
Thermocouple T: 5,820
Ω
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