6 
 
Products Covered by this Document 
50 Watt 
N6731B, N6732B, N6733B, N6734B, 
N6735B, N6736B 
100 Watt 
N6741B, N6742B, N6743B, N6744B, 
N6745B, N6746B 
300 Watt 
N6773A, N6774A, N6775A, N6776A, 
N6777A 
Modular Power System  High-Performance Autoranging DC Power Modules 
50 to 500 Watt 
N6751A, N6752A, N6753A, N6754A, 
N6755A, N6756A 
Modular Power System  Precision DC Power and Measurement  
Modules 50 to 500 Watt 
N6761A, N6762A, N6763A, N6764A, 
N6765A, N6766A 
Modular Power System  Application-Specific Modules  N6783A  
Modular Power System  Source/Measure Units (SMUs) 
20 to 80 Watt 
N6781A, N6782A, N6784A, N6785A, 
N6786A 
Modular Power System  DC Electronic Load Modules 
100 to 200 Watt 
N6791A, N6792A 
   
This document describes instrument security features and the steps to declassify an instrument 
through memory clearing, sanitization or removal. 
For additional information, go to: http://www.keysight.com/find/security
 
Be sure that all information stored by the user in the instrument that needs to be saved is 
properly backed up before attempting to clear any of the instrument memory. The model’s 
user guide explains how to store states outside the product.  Keysight Technologies 
cannot be held responsible for any lost files or data resulting from the clearing, or 
sanitization of memory. Be sure to read this document entirely before proceeding with any 
file deletion or memory clearing. 
 
Differences when using modules in older mainframes verses newer “C” mainframes 
When power modules are used in older mainframes (model numbers N6700B, N6701A, N6702A,  
N6705B), the module memory stores the user states, model number, serial number, calibration 
data, and calibration date. For these older mainframe/module configurations, clearing the 
module’s nonvolatile RAM along with the calibration date, can be done using the instructions in 
this document. 
When power modules are used in “C” mainframes (model numbers N6700C, N6701C, N6702C, 
N6705C), the module memory stores the model number, serial number, calibration data, and 
calibration date. The module’s user states are stored in the mainframe memory. For the “C” 
mainframe/module configurations, sanitization of the mainframe memory along with clearing the 
module calibration date, can be done using instructions in this document.