Installation; External Connections - OHAUS 5000 Serie Handbuch

EN-2

2. INSTALLATION

2.1 External Connections

Scale Base with Connector to T51P
Ohaus bases with a circular connector can be attached to the external load cell connector.
To make the connection, plug the base's connector onto the external load cell connector, and then rotate the locking ring
clockwise.
Scale Base with Connector to T51XW
To connect an Ohaus base with a circular connector to the T51XW (which does not have an external connector), the Load
Cell Cable Adapter Kit p/n 80500736 may be used to make the connection. Only use this attachment method if the system will
not be used in a Washdown environment. This cable connects to the terminal block inside the T51XW and has an external
connector on the other end.
RS232 Interface Cable to T51P
Connect the optional RS232 cable to the RS232 connector.
Pin
1
2
3
4
5
6
7
8
9
AC Power to T51P
Connect the AC power cord (supplied) to the power receptacle then connect the AC plug to
an electrical outlet.
AC Power to T51XW
Connect the power cord to a properly grounded electrical outlet.
Battery Power to T51P
The T51P indicator can be operated on batteries (not supplied). The indicator will automatically switch to battery power if
there is a power failure or the power cord is removed.
Remove the battery cover and install 6 C-size (LR14) batteries in the orientation shown in the battery compartment. Re-install
.
the battery cover
Mounting Bracket Attachment
Position the wall bracket over the threaded holes on each side of the indicator and install the knobs. Adjust the indicator to the
desired angle and tighten the knobs.
2.2 Internal Connections
Some connections require the housing to be opened.
WARNING: ELECTRICAL SHOCK HAZARDS EXIST WITHIN THE HOUSING. THE HOUSING SHOULD
ONLY BE OPENED BY AUTHORIZED AND QUALIFIED PERSONNEL. REMOVE ALL POWER
CONNECTIONS TO THE UNIT BEFORE OPENING. IF THE UNIT CONTAINS AN OPTIONAL RELAY
CONTROL BOARD, ADDITIONAL
AC OR DC POWER CONNECTIONS MAY STILL EXIST WITHIN THE HOUSING.
Opening the Housing
T51P
Remove the four Phillips head screws from the rear housing. Remove the front housing being careful not to disturb the
internal connections. Once all connections are made, reattach the front housing.
T51XW
Remove the four 8mm hex head bolts from the rear housing. Open the housing by carefully pulling the front housing forward.
Once all connections are made, reattach the front housing. Tighten the bolts to 2.5 N m (20-25 in lb) torque to ensure a
watertight seal.
Scale Base without Connector to T51P or T51XW
Bases without a circular connector must be attached to one of the internal load cell connectors on the main pc board.
Pass the load cell cable through a cable gland and attach it to terminal
block J4. Tighten the cable gland to secure the cable and maintain a tight seal.
Connection
N/C
TXD
RXD
N/C
Ground
N/C
CTS
RTS
N/C
RS232 Connector
5000 SERIES INDICATORS