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U1401B User’s and Service Guide
8
Specifications
Measurement Category
The U1401B is intended to be used for measurement under
Measurement Category II, 150 V for altitude up to 2000 m.
Measurement category definitions
Measurement CAT I
Measurements performed on circuits that are not directly
connected to MAINS.
For example, measurements on circuits that are not
derived from MAINS, and specifically protected (internal)
mains- derived circuits.
Measurement CAT II
Measurements performed on circuits that are directly
connected to the low voltage installation.
For example, measurements on household appliances,
portable tools, and similar equipment.
Measurement CAT III
Measurements performed in fixed building installation.
For example, measurements on distribution boards, circuit
breakers, wiring (including cables), bus bars, junction
boxes, switches, socket outlets in fixed installation,
equipment for industrial use, and stationary motors with
permanent connections to fixed installation.
Measurement CAT IV
Measurements performed at the source of the low voltage
installation.
For example, electricity meters, measurements on primary
overcurrent protection devices, and ripple control units.
Summary of Contents for U1401B
Page 1: ...Agilent Technologies U1401B Handheld Multi Function Calibrator Meter User s and Service Guide ...
Page 16: ...XVI U1401B User s and Service Guide Contents ...
Page 46: ...26 U1401B User s and Service Guide 1 Getting Started ...
Page 64: ...44 U1401B User s and Service Guide 2 Calibrator Output Operations ...
Page 67: ...Making Measurements 3 U1401B User s and Service Guide 47 Figure 3 1 DC voltage measurement ...
Page 104: ...84 U1401B User s and Service Guide 4 Changing the Default Settings ...
Page 115: ...Application Examples 5 U1401B User s and Service Guide 95 Figure 5 5 Zener diode test ...
Page 146: ...126 U1401B User s and Service Guide 6 Maintenance ...