Bio-Rad ChromLab™ Software - Manual (Page 85)

Sensors
Instrument Guide | 83
Pressure Sensors
The NGC systems can have up to four integrated pressure sensors:
 System pressure sensor — located in the mixer module
 Precolumn and postcolumn pressure sensors — located in the column
switching valve
These pressure sensors protect the column and media from overpressure. One
pressure sensor measures the pressure before the column to protect the
column hardware. The other sensor measures the pressure after the column
and calculates the pressure difference over the media bed. If the pressure
differential value (Delta P) exceeds the preset limit, either the run pauses or
another action is applied.
 Sample pump pressure sensor — located in the sample pump module
Each pressure sensor has an accuracy of ±2% or 2 psi, whichever is smaller.
Temperature Sensor
The NGC systems have an integrated temperature sensor located in the
conductivity flow cell that measures the run temperature. Sensor data is used for
temperature compensation of conductivity and pH.