MS 7000C max gain factor <100 going as low as 60.

Hi, what is the EMV on the tune report? The electron multiplier may need to be replaced.

Just waiting on our replacement EM as its jumped to just over 2000. Thanks

In my experience the end of life of an EM for SQ instruments is between 2500-2800 V and for TQ is a bit lower, around 2100-2300 V so I agree it is likely just time to replace the EM. If you have any questions about how to replace it let us know.

Thanks graettin

Very welcome