Bio-Rad ChromLab™ Software - Manual (Page 36)

2 | The NGC Instrument
34 | NGC Chromatography Systems and ChromLab Software
Detailed Attributes
 Flow rate delivery: 0.01–100 ml/min
 Pressure range: 0–1,450 psi (0–10 MPa)
 Operating viscosity range: 0.35–10 cP
Sample Pump LEDs
The sample pump module is fitted with LEDs.
 Blue LEDs indicates the pump is in use.
How the Sample Pump Works
The reciprocating pistons in the sample pump synchronize to deliver continuous
flow with low pulsation. The sample pump module also has an emergency Pause
button and a Purge button.
 Pressing the emergency Pause stops the sample pump. If a run is in
progress when you press Pause, the sample pump stops and the run
pauses.
You can resume or cancel the run through ChromLab. If you choose to cancel
the run, you can save the run data up to that point.
 Pressing Purge runs the sample pump at full speed, replacing any air in the
lines with buffer. The Purge button is a toggle. To stop the purge, press
Purge on the sample pump again.
Note: The Purge button is deactivated when a run is in progress or when
any of the modules are in calibration mode.
Caution: Always ensure that the column is offline when purging the
system in order to avoid damaging the column.