Keithley S540 Error 4.0E22: Thermal Shutdown.

Keithley S540 · taken from the manufacturer’s manual, pages cited

Error code4.0E22

The instrument has shut down due to excessive heat dissipation. The manual lists no action for this code.

Model
Keithley S540
Display shows
Thermal Shutdown. (4.0E22)
Type
Error code
Source
Manual p. 48

What 4.0E22 means

Thermal Shutdown. p. 48

Common causes

  • Instrument is dissipating too much heat. The instrument is shutdown to keep from self-destructing. p. 48

If 4.0E22 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Keithley service.

Open the manual at page 48 All S540 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 4.0E22; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Keithley. Found a mistake? Report an error.