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Safety and Regulatory Information
Safety Considerations
The following general safety precautions must be observed during all phases of operation, service, and repair of this
instrument. Failure to comply with these precautions or with specific warnings elsewhere in this manual violates
safety standards of design, manufacture, intended use of the instrument, and could result in electrical shock or
injury. Keysight Technologies assumes no liability for the customer's failure to comply with these requirements.
BEFORE APPLYING POWER
Verify that all safety precautions are taken. Make all connections to the unit before applying power.
GROUND THE INSTRUMENT
This product is provided with protective earth terminals. To minimize shock hazard, the instrument must be
connected to the ac power mains through a grounded power cable, with the ground wire family connected to
an electrical ground (safety ground) at the protective (grounding) conductor. Disconnection of the protective
earth terminal will cause a potential shock hazard that could result in personal injury.
BEFORE POWER ON AND OFF
Before powering on the instrument, make sure all signal sources connected to modules are turned off. Turn on
signal sources after the instrument is powered on. Turn off signal sources before the instrument is powered
off.
DO NOT REMOVE THE INSTRUMENT COVER
Only qualified, service-trained personnel who are aware of the hazards involved should remove the instrument
covers. Always disconnect the power cable and any external circuits before removing the instrument cover.
MODULE COVERS
Always replace module covers after terminal wiring and before inserting into mainframe.
DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE
Do not operate the instrument in the presence of flammable gases or fumes.
DO NOT MODIFY THE INSTRUMENT
Do not install substitute parts or perform any unauthorized modification to the product. Return the product to
a Keysight Sales and Service Office for service and repair to ensure that safety features are maintained.
DO NOT MEASURE MORE THAN THE RATED VOLTAGE
Maximum voltage as marked on each module is as below:
a) DAQM900A: 120 Vrms
b) DAQM901A, DAQM902A, DAQM903A, DAQM904A, DAQM908A: 300 Vrms
c) DAQM905A, DAQM907A: 42 Vpk
d) DAQM909A: +/-18Vpk (single ended) for both HI and LO pins.
DO NOT CONNECT ANY MODULE CHANNELS TO MAINS
Measurement category of the instrument is rated as CAT 'Others', terminals should not be directly connected
to the mains.
Keysight DAQ970A/DAQ973A User's Guide
Safety and Regulatory Information
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