Flowserve 3200MD - Manual (Page 27)

User Instructions - Digital Positioner 3200MD LGENIM0059-09 12/13
27
6. Install the plastic board cover. Insert the three retaining screws
through the plastic cover into the threaded boss and tighten
evenly, using a Phillips screwdriver. Do not overtighten.
7. Reinstall all covers.
8. Reconnect power and air supply to the positioner. Use ValveS-
ight or a handheld communicator to perform a pressure sensor
calibration.
8.9 Customer Interface Board
The customer interface board provides a connection point inside
the explosion-proof housing for all hookups to the positioner.
Calibration of the loop current and the analog output current
(optional) are performed using a HART 375 Handheld Communi-
cator or confi guration software such as ValveSight.
Replacing the Customer Interface Board
To replace the customer interface board, refer to Figures 6, 11, 15
and 25 and proceed as outlined below. The following tool is required:
• Phillips screwdriver
 WARNING: Observe precautions for handling electrostatic
sensitive devices.
1. Make sure the valve is bypassed or in a safe condition.
2. Disconnect the power and air supply to the unit.
3. Remove the main cover.
4. Remove the plastic board cover by removing the three retaining
screws (See Figure 15).
5. Remove the fi ve wire connections from the main PCB assembly
(six wire connections if the unit is equipped with the 4-20 mA
analog output option) (See Figure 11).
6. Remove the retaining screw from the main PCB assembly and
lift the main PCB out of the housing (See Figure 15).
7. Remove the user interface cover.
8. Disconnect the fi eld wiring from the customer interface board
terminals and remove the three screws that hold the customer
interface board in the housing (See Figure 6).
9. Remove the customer interface board, carefully pulling the wir-
ing through the bore.
10. Verify that the O-ring is in place in the counterbore in the posi-
tioner housing.
11. Feed the wires on the back of the new customer user interface
board through the passageway into the main chamber of the
housing.
12. Set the customer interface board in place and secure with three
screws (See Figure 6).
13. Reconnect the fi eld wiring to the customer interface board
terminals.
14. Install the main PCB into the housing. Insert the retaining screw
through the board into the threaded boss and tighten evenly,
using a Phillips screwdriver. Do not overtighten.
15. Reinstall the fi ve wire connections (six wire connections if the
unit is equipped with the 4-20 mA analog output option) on the
main PCB assembly (See Figure 11).
16. Install the plastic board cover. Insert the three retaining screws
through the plastic cover into the threaded boss and tighten
evenly, using a Phillips screwdriver. Do not overtighten (See
Figure 15).
17. Reinstall all covers.