Operating instructions

OPERATING MANUAL 2945A
46882-311D vii
Do not charge at an ambient temperature of greater than 40
°
C.
Do not dispose of in a fire. Do not short circuit. Do not crush, puncture, open, dismantle or
otherwise mechanically interfere with. Do not store at temperatures in excess of 60
°
C.
Do observe the correct polarity and connect correctly.
During normal service, small quantities of hydrogen and oxygen may be vented from the battery
pack. Adequate ventilation must be provided around the instrument to allow these gases to
disperse naturally.
The battery pack must only be charged using the charging facility in the instrument, or by using an
approved sealed lead-acid battery charger.
The normal ’End of Life’ condition is reached when capacity of the battery pack falls to 50% of its
rated capacity. This is shown in the performance specification in Chapter 1 of this manual. Battery
packs should be withdrawn from service when this condition is reached.
Battery storage
Any sealed lead-acid battery naturally self-discharges when in storage. Its service life and capacity
may be adversely affected if it becomes over-discharged. Refer to the performance specification in
Chapter 1 of this manual for storage time and conditions.
Stored battery packs should be periodically ’Top Charged’ to optimize performance and service life.
Before ’Top Charging’, the open circuit voltage must be measured, and if this is below the
minimum shown in the performance specification in chapter 1 of this manual, the battery pack must
not be recharged.
WARNING
Hot Surfaces
Take care when touching the RF Input Type N connector after the application of high levels of
continuous power. If 50 W is exceeded for a prolonged period, the temperature of the connector
can become excessive.
WARNING
RF hazard
When measuring high VSWR ratios, hazardous voltages may be present on the line due to standing
waves. Under these conditions, it is dangerous to operate the equipment with the covers removed.
WARNING
Tilt facility
When the equipment is in the tilt position, it is advisable, for stability reasons, not to stack other
equipment on top of it.