12
SPTM-5V series
SPTM-5VL
SPTM-5VR
6. Troubleshooting
1) SPTM-5V shows no output signal.
A.
Check actual input signal to SPTM-5V.
B.
Check power connection and + / - poles.
2) Input signal value to the positioner and output signal value from SPTM-5V differs
dramatically.
A.
Check input signal value and supply voltage. Insufficient voltage can affect input signal
value.
B.
Check the installation of the positioner. If the positioner is installed improperly, please
refer to the positioner’s manual and re-install the positioner.
C.
Set the positioner’s zero and span. Inaccurate zero and span setting can lower the
accuracy and linearity.
D.
Check the installation of the position transmitter. If SPTM-5V is installed improperly,
then refer to the manual and re-install.
3) Sudden changes in SPTM-5V’s output signal value.
A.
Please make sure that SPTM-5V’s lever is placed at 50% point. If not, SPTM-5V
needs to be re-installed and adjusted to be placed at the 50% point.
B.
Adjust the potentiometer. Potentiometer’s load resistance is 10K
Ω
, and it should be
ready at the 50% point.
