Yokogawa PC-Based MX100 - Manual (Page 126)

5-4 IM MX180-01E
The measured value s not correct.
Message Correctve Acton/Descrpton
Reference
Page
The input wiring is not correct. Check the input wiring. *
The measured value indicates +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 input 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 are 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 120 Ω, -B12, and for 350 Ω, -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.
Set scaling appropriately depending on the gauge method.
*
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 Data Acquisition Unit User’s Manual (IM MX100-01E).
5.1 Troubleshootng