Technical data

N1911A/1912A P-Series Power Meters Service Guide v
General Safety Considerations
The following general safety precautions must be observed during all
phases of operation of this instrument. Failure to comply with these
precautions or with specific warnings elsewhere in this manual violates
safety standards of design, manufacture, and intended use of the
instrument. Keysight Technologies assumes no liability for the customer’s
failure to comply with these requirements.
Recommended Calibration Interval
Keysight Technologies recommends a two- years calibration cycle for the
N1911A and N1912A P-Series power meter.
WARNING
• Before this instrument is switched on, make sure it has been
properly grounded through the protective conductor of the ac power
cable to a socket outlet provided with protective earth contact. Any
interruption of the protective (grounding) conductor, inside or
outside the instrument, or disconnection of the protective earth
terminal can result in personal injury.
CAUTION
• Any adjustments or service procedures that require operation of the
instrument with protective covers removed should be performed only
by trained service personnel.