Model 2500 Service Manual Performance Verification 1-3
Warm-up period
Allow the Model 2500 to warm up for at least one hour before conducting the verification
procedures.
If the instrument has been subjected to temperature extremes (those outside the ranges
stated above), allow additional time for the instrument’s internal temperature to stabilize.
Typically, allow one extra hour to stabilize a unit that is 50°F (10°C) outside the specified
temperature range.
Allow the test equipment to warm up for the minimum time specified by the manufacturer.
Line power
The Model 2500 requires a line voltage of 100V / 120V / 200V / 240V (depending on rear
panel line frequency setting) and a line frequency of 50 or 60Hz. Verification tests must be
performed within this range. Make sure the line voltage setting seen through the small
window in the rear panel power module is at the required setting. If not, change the setting
as covered in Section 3.