Checking The Insulation Impedance Of The Load Cell; Checking The Insulation Impedance Of The Connecting Cable - Minebea Intec Load Cell S PR 6241 Manuel D'installation

8 Troubleshooting
8.3.3

Checking the insulation impedance of the load cell

8.3.4

Checking the insulation impedance of the connecting cable

EN-21
Type Input impedance
(red core, blue core)
D1
650 Ω ±6 Ω
C3, C6
650 Ω ±6 Ω
NOTICE
Possible destruction of load cell
Never apply test voltage between two cores of the load cell cable.
Insulate the load cell cores.
Max. test voltage
- Standard version 100 V DC
- Intrinsically safe version (PR .../..E) 500 V AC
Insulation impedance
- Disconnect connecting cable from measuring instrument and load cells.
- Insulate the cores of the connecting cable.
Insulation impedance
Compression Load Cell S-Type PR 6241
Output impedance
(green core, gray core)
610 Ω ±1 Ω
610 Ω ±0.5 Ω
Core – housing
Core – screen
Screen – housing
Core – core
Core – screen
>5000 MΩ
>5000 MΩ
<0.2 Ω
≥600 MΩ × km
≥600 MΩ × km
Minebea Intec