Yokogawa DAQWORX - Manual (Page 158)

5-4 IM WX103-01E
The measured value s not correct.
Probable Cause Correctve Acton Reference Page
The input wiring is not correct. Check the input wiring. *
The measured value is at +Over or –Over.
The measurement range setting and input
range do not match. Change to an appropriate setting. *
The temperature error is large or is
unstable. The TC type setting and the type
actually connected are different. Change to the correct setting. *
The temperature error is large or is
unstable.
The RJC setting is not correct. Change to the correct setting. *
The temperature error is large or is
unstable.
The wind is hitting the terminals. Block the wind from hitting the terminals. -
The temperature error is large or is
unstable.
The ambient temperature change is
drastic. Suppress changes in the ambient temperature such as by
placing the MX100 in a box. -
The temperature error is large or is
unstable.
There is an error in the wiring resistance
(in the case of an RTD). Match the thickness and length of the three wires. *
The measurement error is large or is
unstable.
Noise effects. Take measures against noise. *
The measurement error is large or is
unstable.
Effects from the signal source resistance. Reduce the signal source resistance such as by inserting a
converter. -
The temperature error is large or is
unstable.
Effects from parallel connections. Stop parallel connections.
Do not use the burnout setting. -
Measured value from strain gauge type
sensor not correct. When using a sensor without a remote sensing wire,
use the DV450-001 (conversion cable). *
On the strain module (-B12, -B35), the
gauge method dipswitch settings is not
correct. Enter the correct settings. *
On the strain module (-B12, -B35), the
gauge resistance and internal bridge
resistance values are different. Use a module that supports the resistance value of the strain
gauge (For 120Ω, -B12, and for 350Ω, -B35.) *
On the strain module, scaling
corresponding to the gauge method is
not set. (for 2 gauge, 4 gauge methods,
the amount of strain is doubled or
quadrupled.) Displayed with 1 gauge method conversion. Depending on the
gauge method, set scaling appropriately. *
On the strain module (-NDI), a strain
gauge type sensor without a remote
sensing wire is being used. When using a sensor without a remote sensing wire, use the
DV450-001 (conversion cable). *
* See the
MX100 User’s Manual (IM MX100-01E).
5.1 Troubleshootng