Installation and Service Guide N5251-90001 3-7
 System Installation 
Site Preparation
PNA Series Microwave Network Analyzer System N5251A
Protect Against Electrostatic Discharge (ESD)
This is important. If not properly protected against, electrostatic discharge can seriously 
damage your analyzer, resulting in costly repair.
To redu
ce the chance of electrostatic discharge, follow all of the 
recommendations outlined in “Electrostatic Discharge Protection” 
on page 1-4.
Review the Principles of Connector 
Care
Proper connector care and connection techniques are critical for accurate and repeatable 
measurements. Refer to Table 5-1 on page 5-3 for tips on connector care.
Prior to making connections to your analyzer, carefully review the information about 
inspecting, cleaning, and gaging connectors. Refer to the calibration kit documentation for 
detailed connector care information. 
Space Requirements
Standard installation of the N5251A system includes configuration and installation of the 
system on a customer provided lab bench or table top of adequate size and strength.
N5251A System Weight and Dimensions
Component Weight and Dimensions
Table 3-5 shows the maximum weight and dimensions of the N5251A system components. 
Refer 
also to Figure 4-3 on page 4-7 for test head module dimensions.
Model Weight
Required Benchtop Dimensions for the System
Clearance Width Depth
2-Port 60.1 kg (132 lb) 48 cm (19 in) 178 cm (70 in) 114 cm (45 in)
4-Port 83.5 kg (183.2 lb) 48 cm (19 in) 178 cm (70 in) 140 cm (55 in)