Sterling Scale 825 - Manual (Page 4)

_____________________________________________________________________________________________________________
Revision 4.4 Copyright ©2004Sterling Scale Co., Inc. March 2005
Web Site: www.sterlingscale.com E-mail: [email protected]
Pin Name Description
1 +EX + Excitation voltage (+10 VDC)
2 +SN(+EX2) + Sense line (+Excitation scale 2)
3 +SG + Signal line
4 -SG - Signal line
5 -SN(-EX2) - Sense line (-Excitation scale 2)
6 -EX - Excitation voltage (GND)
7 SHD Shield
8 +SG2 (+Signal scale 2)
9 -SG2 (-Signal scale 2)
The load cell interface connector is P4 on the circuit board,
located in the lower left hand corner.
Connecting Scale 2
Scale 2 is an option on the 825. Scale 2 does not use sense wires.
Scale 2 can be connected following the above pin assignments.
Please Note: The +SN and – SN terminals are used to provide + and – Excitation to the
second scale.
Connecting External Power Supply
- NEMA 1 enclosures are supplied with a transformer power supply, which plugs into the wall.
Power Required – 117 VAC
!!!! 10 VAC, 60 Hz
- NEMA 12 and NEMA 4 enclosures are supplied with a 6’ power cord with a standard 3-prong
connector.
Power Required – 117 VAC
!!!! 10 VAC, 60 Hz
- Desk enclosures are supplied with a transformer power supply, which plugs into the back of
the instrument and the transformer plugs into the wall.
Power Required – 117 VAC
!!!! 10 VAC, 60 Hz
INSTALLATION
Page 2