2 U1241B/U1242B User’s and Service Guide
1Getting Started
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 MΩ
• 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- 1:2001 Category III 1000 V/ Category IV 600 V
Overvoltage Protection, Pollution Degree II standards
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