Chromatographic Troubleshooting

Electronic pressure control

Switch setting examples

IN A1 or IN B1

RIGHT, currently unused PID

IN A0 or IN B0

LEFT, Programmable Cool On-Column (PID) /

 

RIGHT, Purged Packed Inlet & Split/Splitless Capillary

 

Inlet (PID)

MODE A or MODE B

LEFT, (FPR) Programmable Cool On-Column Inlet &

 

Purged Packed Inlet / RIGHT, (BPR) Split/Splitless

 

Capillary Inlet

EPC A or EPC B

LEFT, Electronic Pressure Control present / RIGHT,

 

Electronic Pressure Control not present

 

 

 

EXAMPLE

INLET B = Split/Splitless Inlet with Electronic Pressure Control

INLET A = Any Non-Electronic Pressure Controlled Inlet

LEFT = OPEN

RIGHT = CLOSED

IN B1 RIGHT

IN B0 RIGHT

MODE B

RIGHT

EPC B LEFT

IN A1 RIGHT

IN A0 RIGHT

MODE A RIGHT

EPC A

RIGHT

NOTE

This group of switches controls the A position inlet. If another electronic pressure controlled inlet is installed in the A position, this group of switches must be set according to the instructions for that particular inlet.

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