1
Getting Started
22
Keysight U1241B and U1242B User’s and Service Guide
Introduction
The handheld digital multimeters’ key features are:
– DC, AC voltage and current measurements.
– True-RMS measurement for both AC voltage and current
– Harmonic ratio for power quality of sine wave (for U1242B)
– Switch counter for detecting the bounce of switch
– Ambient temperature display with each measurement
– Scan temperature measurement for T1, T2 and T1–T2 (for U1242B)
– Resistance measurement up to 100 M
Ω
– Diode and audible continuity tests
– Capacitance measurement up to 10mF
– The % scale readout for 4–20 mA or 0–20 mA measurement
– Temperature test with selectable 0
°
C compensation (without ambient
temperature compensation).
– K-type (for U1241B) and J/K-types temperature measurement (for U1242B)
– MinMax Recording for minimum, maximum and average readings
– Data Hold with manual or auto trigger
– Null/Relative function
– Auto or manual data logging memories (for U1242B)
– Battery capacity indicator
– Adjustable brightness level of orange LED backlight display
– Closed case calibration
– 10,000 count precision true RMS digital multimeter, designed to meet EN/IEC
61010-1:2010 Category III 1000 V / Category IV 600 V Overvoltage Protection,
Pollution Degree II standards