Technical data

2 U1401A User’s and Service Guide
1Getting Started
Introducing the U1401A Handheld Multi-Function Calibrator/Meter
The key features of the U1401A are:
• Simultaneous signal generation and measurement.
• DC, AC, and AC+DC voltage and current measurements.
• DC voltage, DC current, and square wave outputs.
• Intelligent output and standby control.
• Rechargeable Ni- MH battery with built- in charging
capability.
• Smart charger design without battery removal.
• Bright Electroluminescence (EL) backlight with 5- digit
LCD display.
• Percentage scale readout for 4- 20 mA or 0- 20 mA
measurement.
• Load driving capability up to 1200 Ω for 20 mA
simulation with yellow test lead.
• Adjustable steps and time interval for Autoscan.
• Adjustable resolutions and start for linear Ramp output.
• 1 ms peak hold to catch inrush voltage and current easily.
• Temperature measurement with selectable 0
°C
compensation.
• Frequency, duty cycle, and pulse width measurements.
• Dynamic recording for minimum, maximum and average
readings.
• Data hold with manual or autotrigger and relative mode.
• Diode and audible continuity tests.
• Bidirectional optic computer interface with SCPI
commands.
• Resistance measurement up to 50 MΩ.
• Safe, precise and fast closed case calibration.
• 50,000 count precision true- rms digital meter, designed to
meet IEC 61010- 1 CAT II 150V standard.