
9.4 Internal Circuit Configuration
250
The following shows the EXT I/O terminal circuit configuration.
9.4 Internal Circuit Configuration
•
Insulating the signal wires prevents signal interference. Be sure to ground
external equipment connected to the instrument. If protective earthing is not
provided, insulation damage may result.
•
The maximum Low-level output current of the output photocoupler is 50 mA. If
current higher than 50 mA is required, connect an external current amplifica-
tion transistor circuit that operates on an external power supply.
Summary of Contents for ST5540
Page 2: ......
Page 6: ...Contents iv Index i ...
Page 29: ...23 2 Chapter 2 Instrument Labels and Screens Instrument Labels and Screens Chapter 2 ...
Page 80: ...4 8 Changing the Measurement Method Auto Manual 74 ...
Page 121: ...115 8 9 7 Chapter 7 Instrument System Settings Instrument System Settings Chapter 7 ...
Page 144: ...7 14 Setting the Backlight 138 ...
Page 284: ...10 14 Measurement Networks 278 ...
Page 290: ...11 4 Instrument Disposal 284 ...
Page 320: ...Appendix4 External Dimensions A30 ...
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