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3-6
TI04L55B01-01EN
Reference Junction Compensation (RJC)
Performs reference junction compensation on thermocouple input.
You can select whether to perform reference junction compensation internally within GM or
externally (with a reference junction compensator).
External reference junction
Internal reference junction
GM
Thermocouple
Thermocouple
Burnout Detection
When the range type is set to thermocouple (TC), resistance temperature detector (RTD) or
standard signal (GS (1-5V), GS (4-20 mA)), the GM detects sensor burnouts.
If the range type is set to GS (1-5) or GS (4-20 mA), you can set the upper and lower limits for
determining burnouts.
Burnout
Burnout
1 - 5 V
Detected on the 1-5 V value
Indicated as Burnout
Indicated as Burnout
Thermoelectromotive force
Burnout limits (for GS (1-5V), GS (4-20 mA) ranges)
Item
Selectable Range (Percentage of the specified span width)
Lower Limit of Burnout
-20.0 to -5.0%
Upper limit of burnout
105.0 to 120.0%
Operation Modes of Modules
l
AI modules
2ch mode and 10ch or 6ch mode are available.
In 10ch mode, measurement is possible on CH1 to CH10.
In 6ch mode, measurement is possible on CH1 to CH6.
In 2ch mode, measurement is possible only on CH1 and CH2. (CH3 and higher channels are
fixed to Skip.)
In 10ch mode, when the scan interval is 100 ms or 200 ms, the A/D integration time is fixed at
1.67 ms. Since the power frequency noise is not eliminated, the measured values may fluctuate,
especially in temperature measurements using thermocouples. In 2ch mode, when the scan
interval is 100 ms or 200 ms, the A/D integration time is 16.67 ms or 20 ms. This allows power
frequency noise to be eliminated.
Note that the selectable A/D integration times vary depending on the 2ch/6ch/10ch mode and
scan interval settings.
For the high-speed AI module, power frequency noise is rejected using the noise rejection
feature.
Содержание SMARTDAC+ GM
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