Quality of Power

Issue

The quality of power supplied to your system is very important for its performance.
The quality of line voltage must be stable and within the specifications.
The line voltage must be free voltage surges, sags, or transients.

Q Exactive GC

Harmonic distortion is a high-frequency disturbance that might affect operation of your system. This disturbance appears as distortion of the fundamental sine wave.
Slow average is a gradual, long-term change in average root mean square (RMS) voltage level, with typical durations greater than 2 s.
Sags and surges are sudden changes in average RMS voltage level, with typical durations between 50 μs and 2 s.
Transients (or impulses) are brief voltage excursions of up to several thousand volts with durations of less than 50 μs.

Harmonic distortion causes noise in the power supply lines and degrades instrument performance.
Constant high line voltage, impulses, or surges in voltage can cause overheating and component failures.
Constant low line voltage or sags in voltage can cause the system to function erratically or not at all.
Transients, even of a few microseconds duration, can cause electronic devices to fail catastrophically or to degrade and eventually shorten the lifetime of your system.
Thermo Fisher Scientific recommends using power monitoring and conditioning devices.