System Heating And Cooling; Required Conditions For Accuracy Enhanced Measurement - Keysight Technologies N5290/1A PNA Series Service Manual

Safety and Regulatory Information
Environmental Requirements

System Heating and Cooling

Install air conditioning and heating, if necessary, to maintain the ambient
temperature within the appropriate range (as given in the table above). Air
conditioning capacity must be consistent with the BTU ratings given in
1-1 on page 12

Required Conditions for Accuracy Enhanced Measurement

Accuracy-enhanced (error-corrected) measurements require the ambient
temperature of the N5290/1A to be maintained within ± 1 °C of the ambient
temperature at calibration.
1-14
and Table 1-2 on page 13.
Keysight N5290/1A Service Guide
Table