Agilent Multisampler G5668A

For bio-inert modules use bio-inert parts only! For biocompatible modules use bio / biocompatible parts only! Do not mix with bio-inert parts.

When poor injection volume reproducibility or when metering device / analytical head is leaking.

Start the maintenance mode and select Service Position in the Local Controller OR in the Agilent Lab Advisor software select Service & Diagnostics in the system screen (Tools) > Maintenance Positions > Change Metering Device , click start and wait until the metering device is in maintenance position.

Disconnect all capillaries from the metering device.

To release the bayonet lock, push (1.) and rotate (2.) the analytical head a quarter left. Then you can pull and detach the analytical head assembly from the actuator (3.).

Take the metering device. Push against the rear side of the metering device and rotate a quarter left to release the bayonet lock.

Now you can separate the analytical head and head body.

Warning: This procedure requires technical knowledge and should be performed by trained personnel only.

Choose the type of firmware installation

Upload the required module firmware

Upload the latest FW Update Tool

Enter the source of the downloaded files (e.g., Agilent web)

Did the firmware load into the module successfully?

Sign off on the firmware replacement

WARNING: Flammable refrigerant used

WARNING: In the event of a damage

CAUTION: Routing of the condensation tubing

CAUTION: Condensate inside the module

Ensure that the on/off switch on the front of the module is OFF (switch stands out)

Disconnect the power cable from the sampler

Ensure that no condensate remains inside the thermostat before proceeding forward

For bio-inert modules use bio-inert parts only! For biocompatible modules use bio / biocompatible parts only! Do not mix with bio-inert parts.

Prerequesites: Switch off the power of the Multisampler

NOTE: Please bear in mind that depending on which valve you have installed the images may slightly differ from the actual item.

Turn the spanner nut counter clockwise until the injection valve head detaches from the hydraulic box (Do not use wrenches on the spanner nut).

Remove the spanner nut from the injection valve head.

Take the replacement injection valve head and insert it into the open actuator slot of the hydraulic box. Rotate until the unions at the base of the replacement injection valve head and the valve actuator engage.

If the outside pin does not fit into the outside groove, you have to turn the valve head until you feel that the two pins snap into the grooves. Now you should feel additional resistance from the valve drive while continue turning the valve head until the pin fits into the groove.

NOTE Check the orientation of the rear side. Verify the correct position of the Valve TAG.

For bio-inert modules use bio-inert parts only! For biocompatible modules use bio / biocompatible parts only! Do not mix with bio-inert parts.

When: The needle is visibly damaged. Leaks or blockages are observed. The limit for the needle interaction EMF counter is exceeded. The needle needs to be replaced as part of the yearly maintenance.

Prerequesites: Finish any pending acquisition job. Stop the flow at the pump and remove the solvent lines from the eluent bottles to avoid spilling solvent. Close the shutoff valves at the pump if available.

WARNING: Risk of injury by uncovered needle. An uncovered needle is a risk of harm to the operator. Do not open the safety lock of the needle assembly. Be careful working at the z-robot. Wear safety goggles, when removing the needle assembly.

WARNING: Toxic, flammable and hazardous solvents, samples and reagents. The handling of solvents, samples and reagents can hold health and safety risks. When working with these substances observe appropriate safety procedures (for example by wearing goggles, safety gloves and protective clothing) as described in the material handling and safety data sheet supplied by the vendor, and follow good laboratory practice.

NOTE It is recommended to always exchange the needle assembly and the needle seat at the same time to prevent premature leakage.

In the Agilent Lab Advisor software select Service & Diagnostics > Maintenance Positions > Change Needle, Loop and Seat , click Start and wait until the needle assembly is in maintenance position. OR: In the Local Controller start the maintenance mode and select Change Needle, Loop and Seat function.

Lock the needle in the safety position.