Rinstrum -  R300 Series Digital Indicator Quick Start Manual Rev 1.5 
Page 9 
 
6. Connections 
6.1. Cable Connections 
•  All cable connections are made to the rear of the instrument 
using screwless terminals.   
•  Wires must be stripped of insulation by at least 10mm.   
•  To install, depress the orange lever beside the terminal required 
and push wire into the hole.  Release the lever and pull gently on 
the wire to ensure it is securely trapped in the terminal.   
 
6.2. DC Power  (DC PWR + , DC PWR –) 
•  The DC supply need not be regulated, provided that it is free of 
excessive electrical noise and sudden transients.  
•  The instrument can be operated from a high quality plug-pack as 
long as there is sufficient capacity to drive both it and the load 
cells. 
6.3. Load Cell Connection 
The R300 Series units may be connected for either 4-wire or 6-
wire operation.  For more information, refer to BUILD:CABLE 
setting page 20.