![cre 8900 adjustment points cre 8900 adjustment points](https://cdn.ecommercedns.uk/files/7/226987/2/8197842/35d22d76697b8ef52d64bca8b6439620.jpg)
Select the third voltage calibration point and enter the data. Front Panel Menuĭisplay shows: “Enter P2 measured data” Enter the data from the external DMM. Select the second voltage calibration point and enter the data. Front Panel Menuĭisplay shows: “Enter P1 measured data” Enter the data from the external DMM. Select the first voltage calibration point and enter the data. Specify remote sense voltage calibration:
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Front Panel MenuĬheck that the voltmeter is connected and select Next. Select the remote voltage programing and measurement calibration. Connect the remote sense leads to the output. For 1500 VDC models, connect a voltage divider as shown.
CRE 8900 ADJUSTMENT POINTS INSTALL
If the electronic load is rated less than the voltage rating of the power supply, install a disconnect switch as shown.
![cre 8900 adjustment points cre 8900 adjustment points](http://www.w1aex.com/8900/cap.jpg)
Connect a DMM and an electronic load to the output as shown in Test Setup A. To guarantee a clean signal for calibration points 1 through 3, program the electronic load to at least 5% of the rated output current of the model being calibrated. Voltage Calibration - With Remote Sensing Voltage Programming and Measurement Note that any calibration section that was calibrated but not saved will revert to its previous calibration constants.Īll models generate voltages above 60 VDC, with some models rated at up to 1,500 VDC! Ensure that all instrument connections, load wiring, and load connections are insulated or covered - so that no accidental contact with lethal voltages can occur.Īlways turn off the output when connecting or disconnecting any equipment on the sense or output terminals of the unit. Exit the calibration mode either by logging out of the Admin menu or by sending CAL:STAT OFF.However, these constants are not saved in nonvolatile memory until a SAVE command is explicitly given. As each calibration section is completed, the instrument calculates new calibration constants and begins using them. Any calibration section can be run and saved independently of the other sections.Use "Wait" statements to allow for the appropriate settling times for the power supply. Additionally, the relatively slow settling times and slew rates of the power supply must be taken into account. The response from the instrument must be read each time *OPC? is given. When calibrating the unit using SCPI commands, most steps involve sending a *OPC? query to synchronize with the instrument’s command completion before proceeding.
CRE 8900 ADJUSTMENT POINTS PASSWORD
Refer to Password Protection for more information. You can change the password once calibration mode is entered to prevent unauthorized access to the calibration mode.