Specifications

10/31/02 Tech-304/DWO 14195 Page 30 of 39
Appendix A
Procedure to Adjust the Error 3 Setting
Note: The error 3 message is pre-set from the factory. For a low pressure positioner it
is set to 15 psi and for a high pressure positioner it is set at 55 psi. If these settings
come out of calibration or if it is necessary to change these settings, the following
instructions can be followed.
1. Before adjusting the Error 3 setting the positioner must be mounted and set-up. See sec-
tion 3 of this manual.
2. To adjust the setting of the Error 3 message to indicate low input pressure, there is an
adjustment screw located on the top of the transducer. (See Figure Below)
3. To set the Error 3 for an explicit pressure value, loosen the lock nut on the adjustment
screw and gently turn the screw clockwise as far as it will go. Do not force the screw past
its limit or the Error 3 diaphragm assembly may be damaged.
4. Regulate the supply pressure to the pressure you would like to set as a low input pressure
flag.
5. Turn the adjustment screw slowly counter-clockwise to the point where the Err 3 message
appears on from the display.
6. Set this point by tightening the lock nut. Be careful not to effect the adjustment screw set-
ting.
7. Re-regulate the supply air to the normal operating pressure.
(With Locknut)
Transducer
Error 3
Adjustment Screw