SS2L / SS2R Series
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10. Quick Auto-Calibration
10.1 Quick Auto-Calibration
Supply 4-20mA input signal and push MODE button for 5 seconds, auto-calibration process will
start.
① It may take a longer time according to sizes of the control valve and the actuator. Generally,
it will take 2 – 3 minutes with the standard size valve and actuator.
② If “MONT” is shown with the linear type SS2L positioner during an auto-calibration process,
please make sure that the feedback lever is positioned horizontally at 50% open or close
(See 11.4.6). Otherwise, please mount the SS2L positioner again.
- In case of the linear type SS2L positioner, “VALP / POSP” is shown as below. Please choose
either VALP or POSP within 6 seconds by pushing the UP/DN button. Otherwise, “VALP” is
set as standard.
10.2 Checking Ambient Temperature
In case of a reverse acting actuator, RA is displayed and a
countdown begins.
RA
5→4→3→2→1→END→RUN (auto-calibration is completed)
DA
In case of a direct acting actuator, DA is displayed and a
countdown begins.
VALP ( VALVE PIN )
POSP ( POSITIONER PIN )
Note that if there is a difference between a selection of “VALP” or “POSP” and
an actual installation of pin, it may cause a poor linearity.
Keep pushing ENTER button, an ambient temperature
surrounding the positioned will appear. Note that this
ambient temperature appears only while pushing ENTER
button.
The pin is
installed
on
the valve stem
The
pin
is
installed on the
SS2L positioner
Lever pin
Lever pin