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E4991A Option Upgrades

E4991A RF Impedance/Material Analyzer
Product Order with this number Description Type eDelivery Upgrade Contents Minimum Firmware Incompatible With Adjustments required after installation Installed by & Installation Time Installation note Product
  E4991A-001

E4991U-001 (Discontinued)

DC Bias Internal Hardware Upgrade No Keysight Installable Hardware n/a n/a Adjustment and performance tests to verify calibration Keysight Technologies service center - 1 hr Keysight intenal use only E4991A-001
  E4991A-002 E4991U-002 Material Measurement Firmware Software Upgrade No Upgrade Certificate n/a n/a Adjustment to verify calibration Keysight Technologies service center - 0.5 hrs Keysight intenal use only E4991A-002
  E4991A-007 E4991U-007 (Discontinued) Temperature Characteristic Test Kit Internal Hardware Upgrade No Keysight Installable Hardware n/a n/a Adjustment and performance tests to verify calibration Keysight Technologies service center - 1 hr Keysight intenal use only E4991A-007
  E4991A-010 E4991U-010 (Discontinued) Probe Station Connection Kit Internal Hardware Upgrade No Keysight Installable Hardware n/a n/a Performance test to verify calibration Keysight Technologies service center - 0.75 hrs Keysight intenal use only E4991A-010
  E4991A-1D5 E4991U-1D5 (Discontinued) High Stability Frequency Reference Internal Hardware Upgrade No Keysight Installable Hardware n/a n/a Adjustment and performance tests to verify calibration Keysight Technologies service center - 1.75 hrs Keysight intenal use only E4991A-1D5