Fairbanks X SERIES PR 5220 ETHERNET TRANSMITTER User Manual
Page 19

Section 3: Installing the Instrument
05/11 20
51209 Revision 2
3.2.4
Connecting PR 6221 Load Cells
See PR 6021/08, -/68 operating manual. 
 
3.2.5
External Load Cell Supply
 
The internal load cell supply voltage of PR5220 (V+, V-) is not connected. 
The common line of the symmetrical external supply must be connected to the same terminal of PR 
5220 as the shield of the load cell / extension cable.
Specification of external supply: +/- 6 VDC + 5%, -30%; max ripple. 50 mVpp; max. asymmetry +/- 
3%. An external supply voltage smaller than 8 VDC (+/- 4 VDC) must be set under 
-[Calibration]-
[Param]-[External supply]. 
 
 
3.2.6
Connection via PR 1626/60
 
Connect the instrument to PR 1626/60 as described below. For additional connections, refer to the 
PR 1626/60 manual. The internal load cell supply voltage of PR5220 (V+, V-) is not connected. 
 
If MX8 is closed, [below 8VDC] must 
be set under 
-[Calibration]-[Param]-
[External supply].
