Agilent Technologies 1290 Infinity II User Manual

1290 Infinity II High-Speed Pumps User Manual 200
8Maintenance
Replace the Purge Valve Head
Replace the Purge Valve Head
When
In case of problems with the purge valve
Parts required p/n Description
5067-4236 Purge valve head
5067-4655 Capillary ST 0.25 mm x 250 mm
G4220-87000 Capillary ST 0.17 mm x 300 mm
01090-87308 Capillary ST 0.25 mm x 130 mm
5067-6736 Bio-Compatible purge valve head
5500-1420 Bio-Compatible capillary MP35N 0.25 mm x 250 mm
G7132-60002 Bio-Compatible capillary MP35N 0.17 mm x 300 mm
5500-1421 Bio-Compatible capillary MP35N 0.25 mm x 130 mm
Preparations
Remove all capillary connections to the purge valve
CAUTION
Potential damage of valve head or malfunction of valve
When the pump is switched on, the valve tag is accessed (read/write) and used
for correctly positioning the valve.
If the valve head is replaced while the pump is on, invalid information may be
written to the valve head making it unusable, or positioning may be wrong
resulting in wrong flow connections inside the valve potentially damaging
parts.
 Switch off the pump before working on the purge valve.
CAUTION
Bias measurement results
The valve drive contains sensitive optical parts. Pollution of these parts can
impair the accurate selection of valve ports and therefore bias measurement
results.
 Protect the optical parts from dust and other pollutions.

Agilent Technologies 1290 Infinity II Specifications

General

Brand	Agilent Technologies
Model	1290 Infinity II
Category	Laboratory Equipment
Language	English