EM tunning ICP MS 7800

Hello everyone

While running EM setting procedure we run into an error saying " EM setting failed of too low signal. Check the sensitivity with Performance Report. When we checked the EM parameter they were all ok: Discriminator-4.3mV; Analog HV- 2398 V; Pulse HV- 1069 V.

The capillaries, nebulizer, lens and sampling cone are replaced for new ones and well placed. Can anyone help to resolve this problem?

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