ON-LINE AND OFF-LINE OPERATION UM344-2
September 1995
5
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20
7. Refer to step 2 above and select the new damping value.
Count the number of steps (damping values) from “0”
seconds to the selected value. This number “N” will be
used in the following step 8.
8. Press and release the FULLSCALE pushbutton “N”
times to step to the selected damping value.
9. Perform steps 3 and 4 above.
5.1.3.4 Local Pushbutton
AUTO/MANUAL, SETPOINT and
VALVE Adjustments (Controller
ON)
These procedures assume the Transmitter-Controller is field
mounted to an operating process and contains an optional
Digital Meter to display the AUTO or MANUAL control
mode and PROCESS VARIABLE, SET POINT, and
VALVE values.
Open the sliding cover on top of the Transmitter's housing to
access the ZERO/FULLSCALE pushbuttons (Figure 1-1),
then refer to the following procedures to make any required
changes to the Controller's operation.
A. Change AUTO/MANUAL Control Mode
The active control mode is shown by a lit "A" (AUTO)
or "M" (MANUAL).
IMPORTANT
If the present control mode is AUTO, and
the Controller's A/M TRANSFER BLOCK
has been configured for "AUTOMATIC
MODE ONLY", a change from AUTO to
MANUAL cannot be made using the
pushbuttons.
1. Note the present control mode as indicated in the
Digital Meter. Simultaneously press and hold, for a
minimum of 5 seconds, the ZERO/FULLSCALE
pushbuttons, then release both buttons.
2. Confirm the transfer of mode control from "A" to
"M" or "M" to "A".