Swann AMU-II ph/Redox Operator's Manual page 28

AMU-II pH/Redox
Installation
Connector
field
26
To install an interface option, proceed as follows:
1 Switch power off.
2 Loosen the four screws at the back of the AMU-II transmitter and
remove the backplate.
3 Pull the mainboard [B] completely out of the housing.
4 Plug the interface option onto the pins [D] on the mainboard.
5 Reinsert the mainboard into the housing, making sure to insert
both boards into the correct guide grooves.
Mainboard:
Interface option:
6 Carefully press the mainboard [B] against the display board [C]
until it snaps into place.
1 2 3 4 5 6 7 8
L/+ N/- 9 10 11 12 13 14 15 16
E
Backplate
F Covered connector field
(condition at delivery)
7 Remove the cover [F] from the connector field.
8 Apply the supplied sticker [G], [H] or [I] to the connector field.
9 Reinstall the backplate [E] onto the housing.
Fourth guide groove from the bottom
First guide groove from the right
E
F
17 18 19 20 21
COM
G
H
I
G H
Labeling for USB option
Labeling for RS485 option
Labeling for HART option
A-96.150.441 / 230523
I