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System Description
I/O Components
I/O Components
Analog Voltage
Analog Current
Outputs (Optional)
8-8
Model 48i Trace Level-Enhanced Instruction Manual
External I/O is driven from a generic bus that is capable of controlling the
following devices:
Analog output (voltage and current)
●
Analog input (voltage)
●
Digital output (TTL levels)
●
Digital input (TTL levels)
●
Note The instrument has spare solenoid valve drivers and I/O support for
future expansion.
The instrument provides six analog voltage outputs. Each may be software
configured for any one of the following ranges, while maintaining a
Outputs
minimum resolution of 12 bits:
0-100mV
●
0-1V
●
0-5V
●
0-10V
●
The user can calibrate each analog output zero and span point through
firmware. At least 5% of full-scale over and under range are also supported.
The analog outputs may be assigned to any measurement or diagnostic
channel with a user-defined range in the units of the selected parameter.
The voltage outputs are independent of the current outputs.
The optional I/O Expansion board includes six isolated current outputs.
These are software configured for any one of the following ranges, while
maintaining a minimum resolution of 11 bits:
0-20 mA
●
4-20 mA
●
The user can calibrate each analog output zero and span point through
firmware. At least 5% of full-scale over and under range are also supported.
The analog outputs may be assigned to any measurement or diagnostic
channel with a user-defined range in the units of the selected parameter.
The current outputs are independent of the voltage outputs. The current
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Thermo Fisher Scientific
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Troubleshooting
