3-12 Keysight B2900 User’s Guide, Edition 5InstallationMaintenance• For preventive maintenanceTo performself-testThe following procedure shows how to perform the self-test.1. If it is in the remote state, press the Cancel / Local key.2. Press the On/Off switch and confirm that the switch turns off.3. Disconnect test leads and cables from the channel terminals.4. Press the following function keys.More > System > Cal/Test > Self-TestConfirmation dialog box is opened.5. Press the OK key. This starts the self-test.Self-calibrationKeysight B2900 provides the self-calibration function to maintain the measurementperformance. If the environmental temperature changes 3 C or more, perform theself-calibration. This is effective for the accurate measurements by minimizing theeffect of thermal drift. The self-calibration must be performed after warming-up of60 minutes. Before performing the self-calibration, turn the channel output off anddisconnect test leads and cables from the terminals.To performself-calibrationThe following procedure shows how to perform the self-calibration.1. If it is in the remote state, press the Cancel / Local key.2. Press the On/Off switch and confirm that the switch turns off.3. Disconnect test leads and cables from the channel terminals.4. Press the following function keys.More > System > Cal/Test > Self-CalConfirmation dialog box is opened.5. Press the OK key. This starts the self-calibration.