Troubleshooting guide

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Instrument Information

AC power cord

The EMI Receiver is equipped with a three-wire power cord, in accordance with

international safety standards. This cable grounds the instrument cabinet when

connected to an appropriate power line outlet. The cable appropriate to the original

shipping location is included with the instrument. See:

http://www.agilent.com/find/powercords

CAUTION Always use the three-prong AC power cord supplied with this product. Failure to

ensure adequate earth grounding by not using this cord can cause product damage.

WARNING If this product is not used as specified, the protection provided by the

equipment could be impaired. This product must be used in a normal condition

(in which all means for protection are intact) only.

Install the instrument so that the detachable power cord is readily identifiable

and easily reached by the operator. The detachable power cord is the

instrument disconnecting device. It disconnects the mains circuits from the

mains supply before other parts of the instrument. The front panel switch is

only a standby switch and is not a LINE switch. Alternatively, an externally

installed switch or circuit breaker (which is readily identifiable and is easily

reached by the operator) may be used as a disconnecting device.

Protecting Against Overpowering

The input circuitry of the EMI Receiver can be damaged by applying signals that

exceed the maximum safe input level of +30 dBm average total power or +/- 0.2 Vdc

(when DC coupled) or +/- 70 Vdc (when AC coupled). Refer to the instrument's

specification guide for more details regarding the Maximum Safe Input Level.

Repairing damage to the input circuitry can be expensive.

If the EMI Receiver will be used to analyze signals that might be near the maximum

safe input level, use external attenuators and/or limiters to help protect the

instrument input. The External Gain, amplitude Corrections, and/or Ref Lvl Offset

features may be used to compensate for the gains and losses of external devices.

External Gain is under the Input/Output menu and Corrections and Ref Lvl Offset

are under the AMPTD Y-Scale menu.

Note that the RF Input 2 connector can withstand high pulse signal (2 kV pulses of

10 μs duration) without damaging the circuitry.