In Case of Damage
An instrument that appears damaged or defective should be made inoperative and secured
against unintended operation until qualified service personnel can repair it.
Self-Test
Before measuring any hazardous voltage or current, remove all test leads to the instrument,
run the TEST:ALL? query from the remote interface, and read the result to verify that the
instrument is performing properly.
The TEST:ALL? query is a self-test that returns +0 if the instrument passes and +1 if the
instrument fails. You can also perform this query from the front panel by pressing [Shift] >
[Utility] > Test/Admin > Self Test > Full Test. If this self-test fails, make sure that the
instrument is repaired and passes the complete self-test before continuing.
Measuring AC Power Mains
The HI, LO, and current input terminals may be connected to AC mains power in IEC
Category II installations for line voltages up to 300 VAC. To avoid the danger of electric
shock, do not connect the inputs to AC mains power for line voltages above 300 VAC. See
IEC Measurement Category II for further information.
Measuring Current with A Current Transformer
If a current transformer is used for measuring current, you must use a current transformer
with internal secondary protection. Using a current transformer without protection may
result in a hazardous voltage resulting in a severe shock or death. In addition, this may
cause damage to the instrument.
Measurement Limits
To avoid instrument damage and the risk of electric shock, do not exceed any of the
Measurement Limits defined in the following section.
This product complies with EN/IEC 61326-2-1, for sensitive test and measurement equipment:
When subjected to transient radiated and/or conducted electromagnetic phenomena, the product may
have temporary loss of function or performance which is self-recovering. Recovery may take longer than
10 seconds.
When subjected to continuously present electromagnetic phenomena, some degradation of performance
may occur.
Measurement Limits
The Truevolt Series DMMs provide protection circuitry to prevent damage to the instrument and to protect against the
danger of electric shock, provided the Measurement Limits are not exceeded. To ensure safe operation of the
instrument, do not exceed the Measurement Limits shown on the front and rear panel, and defined as follows:
6 Agilent Truevolt Series DMM Operating and Service Guide
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