Publicité
Les langues disponibles
Les langues disponibles
Current Calibration
Current Programming and Measurement
Step 1. Disconnect all equipment form the output terminals.
Step 2. Select the current programing and measurement calibration.
Front Panel Menu Reference
Select System\Admin\Cal\Curr\Iprog.
Check that nothing is connected to the output and select
Next.
Step 3. Wait 5 minutes for the temperature to settle. Select the first current calibration point.
Front Panel Menu Reference
Wait 5 minutes, then select Next again.
Step 4. Connect a precision shunt resistor to the output. The shunt resistor should be able to measure
at least 70% of the output's full-scale current (see
across the shunt resistor.
Front Panel Menu Reference
Check that the shunt is connected and select Next.
Step 5. Select the second current calibration point. Wait 5 minutes for the temperature to settle.
Calculate the shunt current (I=V/R) and enter the data.
Front Panel Menu Reference
Display shows: "Enter P2 measured data". Enter the data
from the external DMM. This should be about 70% of the
full-scale current rating. Press Enter when done. Press Back
to finish.
Current Sharing Calibration
This procedure calibrates the Imon signal that is used when units are connected in parallel.
Step 1. Connect a short across the + and - output terminals. Connect the Keysight 3458A DMM across
pins 2 and 3 of the Sharing connector (see
Step 2. Select the current sharing calibration.
Front Panel Menu Reference
Select System\Admin\Cal\Misc\CurrShar.
Check that the short is connected and select Next.
Keysight RP7900 Series Operating and Service Guide
SCPI Command
Specify the full-scale current range. Full scale
ranges vary by model. This selects the 20 A range:
CAL:CURR 20
SCPI Command
CAL:LEV P1
*OPC?
Cal Setup
B). Connect the Keysight 3458A DMM
SCPI Command
Not applicable
SCPI Command
CAL:LEV P2
*OPC?
CAL:DATA <data>
Cal Setup
C).
SCPI Command
CAL:CURR:SHAR
6 Verification and Calibration
289
Publicité
