Electrostatic Discharge Caution; Battery Care - Deviser S7200 User Manual

Part I: S7200 Basics
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Electrostatic Discharge Caution

The S7200 TV Signal Spectrum Analyzer, like other high-performance instruments, is susceptible to
electrostatic discharge (ESD) damage. Coaxial cables and antennas often build up a static charge, which
may damage the S7200 input circuitry. S7200 operators must be aware of the potential for ESD damage
and take all necessary precautions.
It is recommended to discharge the static by connecting a short or load device to the cable or antenna
before connecting them to the S7200. It is important to remember that the operator may also carry a static
charge that can cause damage. Following the practices outlined in the above standards will ensure a safe
environment for both personnel and equipment.
 When connecting a coaxial cable to the instrument for the first time that day, the center conductor
of the cable and the outer braided shielding layer should be quickly grounded.
 During service, ensure that the technician is grounded before removing inner components or pulling
out connecting cables.
 Ensure that the instrument is well grounded, so as not to store any static charges.
 Electrostatic protection of this instrument is up to standards of 6KV contact and 8KV air-gap.
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Battery Care

The S7200 can be supplied with power in two different ways: with the built-in battery or with the power
adapter provided.
1-6.1 Battery
The S7200 uses a 7.4V/13Ah lithium battery for autonomous operation. Battery life during continuous use (on
a full charge) is estimated at more than 8 hours. When the voltage falls below 6.9V, the instrument will
display an alert indicating low charge. At 6.7V or less, it will display a second alert and the battery icon will
flicker. At 6.2V or less, following a third alert, the instrument will emit a long audible beep and shut down
automatically. Further use requires that the unit be connected to an external AC or DC power source,
which will also charge the battery. If the unit stays off, it will take about 4 hours to fully recharge. Charging
time will be longer if the unit is in use.
NOTE: Use only Deviser Instruments-approved batteries, adapters, and chargers provided with this
instrument.
WARNING: Low temperatures may cause a temporary reduction of the battery capacity. This will not
damage the battery. High temperatures, however, may cause permanent damage to the battery. See
stated specifications for environmental tolerances. Recommended charging temperature is 10~35°C.
NOTE: It is advisable to replace the battery when operational time falls below 50% of original capacity.
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