DO6 Handbook
Jan 2006
6 of 107 pages
2.4 Power supply and signal-lead connectors
•
Only ever use a shielded, twisted cable with shielded connectors for connecting to the standard
RS232 interface connector.
•
Always use a Pt100 sensor with shielded cable to connect to the Pt100 connector. The cable
shield must not be in contact with the connector shell if grounding of the sensor is unclear.
Otherwise currents circulating in a ground loop can cause measuring errors.
•
Only one device under test must be connected across the two parallel measurement
inputs. No leads must be plugged into the unused connector for safety reasons.
Additional protection of the measurement current using a super
quick-acting 10 A fuse 6.3 x 32 mm
600 VAC
50000 A breaking capacity (or greater)
Use only this fuse
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