User Manual 9260
Portrayal 2-3
Operating
Environment
The 9260 is intended for operation on the bench or inside a rack of
instruments. It is intended for indoor use only and should be
operated in a clean, dry environment with an ambient temperature
within the range of 0 °C to 50 °C.
WARNING
The 9260 must not be operated in explosive, dusty, or
wet atmospheres. Avoid installation of the module
close to strong magnetic fields.
The design of the 9260 has been verified to conform to EN 61010-1
2
nd
addition safety standard per the following limits: Installation
(Overvoltage) Category I (Measuring terminals) Pollution Degree 2.
Installation (Overvoltage) Category I refers to signal level, which is
applicable for equipment measuring terminals that are connected to
source circuits in which measures are taken to limit transient
voltages to an appropriately low level.
Pollution Degree 2 refers to an operating environment where
normally only dry non-conductive pollution occurs. Occasionally a
temporary conductivity caused by condensation must be expected.
Power
Requirements
The amplifier may be operated from a wide range of mains voltage 90
to 264Vac. Voltage selection is automatic and does not require switch
setting. The instrument operates over the power mains frequency
range of 48 to 63Hz. Always verify that the operating power mains
voltage is the same as that specified on the rear panel.
The 9260 should be operated from a power source with its neutral at
or near ground (earth potential). The instrument is not intended for
operation from two phases of a multi-phase ac system or across the
legs of a single-phase, three-wire ac power system. Crest factor (ratio
of peak voltage to rms.) should be typically within the range of 1.3 to
1.6 at 10% of the nominal rms. mains voltage.
