Signal connections
July 29, 2013, 715003794 Rev. B 73
The following table describes the parameter voltages for the chart out signals.
Chart out Outputs the analog signal (specified in the current
separation method, or default separation method) to a
device such as an integrator or strip chart recorder (see
“Set I/O parameter values” on page 162). You can select
one of the following signals as the chart out signal:
•Flow rate
• System pressure
• Sample loop pressure
• Primary head pressure
• Composition (%A, %B, %C, %D)
• Sample temperature
• Column temperature
• Degasser vacuum
The table, below, lists the output signal conditions for
each of these parameters.
Switch 1–switch 4 See “Event switches” on page 74.
Run stopped An output indicating that the separations module
ceased operating because of an error condition or
operator request (pressing the Stop Flow button, for
example).
Chart out signal conditions:
Signal
Parameter setting at 0
volts (minimum)
Parameter setting at 2.000
volts (maximum)
Flow rate 0.000 mL/min 10.000 mL/min
System loop
pressure
–344.7 kPa (–3.45 bar, –50
psi)
37920 kPa (380 bar, 5500
1
psi)
Sample loop
pressure
–0.69 kPa (–0.007 bar, –0.1
psi)
3454.3 kPa (34.5 bar, 501
psi)
I/O signals: (Continued)
Signal Description
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