Table 3: Power Characteristics - Tektronix SPG8000 Technical Reference

Table 3: Power characteristics

Characteristic
AC power source
Rating voltage
Frequency
Maximum power
Surge current, typical
Inrush current, typical
Supply connection
Dual supply hot swap
Dual supply operation
Power supply life tracking
Power supply life expectancy,
typical
Power supply load testing
SPG8000 Specifications and Performance Verification
Performance requirements
100 V to 240 V
50/60 Hz
130 VA
20 A peak (25 °C) for ≤ 5 line cycles, after
the instrument has been turned off for at
least 30 seconds.
10 A RMS half cycle at initial turn on as per
EN55103-1:2009 Annex B.
Detachable IEC cord set, locking versions
available for some geographies.
The instrument can run with either or both
supplies. Any plugging or un-plugging
supplies or AC input to the supplies will not
cause disruption in the system, as long as at
least one supply is active. The supplies take
1-2 sec to power up after AC is applied.
When two supplies are present, one will be
used to power the instrument and the other
will be in an unloaded backup mode.
Each supply maintains a usage history,
which provides the ability to recommend
replacement. Each supply tracks the
time in use, the time in standby, and the
Temperature Weighted Hours calculation that
helps predict the end of life on the supply.
The Temperature Weighted Hour calculation
uses the temperature at each hour to predict
the failure point on the supply.
15 years (131,400 hours) at 25 °C outside
air, 5 years at 50 °C outside air temperature.
The backup supply will periodically be tested
to insure it can support the instrument load
should the primary supply fail. This load is
approximately 55 watts and is applied for
about 6 sec.
Reference information
WARNING.
To reduce the risk of fire and
shock, ensure the mains supply voltage
fluctuations do not exceed 10% of the
operating voltage range.
Actual power varies with type and number of
modules installed. Base instrument without
modules typically draws 20 watts.
Locking cords for: USA, Japan, UK, Europe,
Switzerland, China, and Australia.
Keeping the backup supply unloaded
minimizes its aging and maximizes the life
available if the primary supply fails.
The Temperature Weighed Hours calculation
accounts for the aging acceleration at higher
temperatures and normalizes it to hours at
25 °C.
Specifications
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