GEN7iB
189
INPUT CARDS
INPUT CARDS
12
12.2.3 Measuring currents
The GN310B/GN311B card offers 3 current channels using a 4-pin LEMO connector.
The current channels offer two ways of measuring current:
1. Current as current input to two built-in shunt resistors.
Typically used for current transducer measurements.
2. Current as voltage input.
Typically used for current probe measurements.
Thenextsectionsexplainhowtousethecurrentchannelsinspecicsetups.
Characteristics current channel:
● The input Lemo connector outer shell is connected to the system ground for
shielding purposes.
● The isolated ground is externally accessible and is current return line, as shown in
Fig. 12.6
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8
,
8
,
0DNHEHIRUHEUHDNFRQWDFWQRLQWHUUXSWLRQRIFXUUHQWORRS
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Fig. 12.6 Single-ended isolated current channel
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