The Tektronix CDM250 is a 3½-digit digital multimeter engineered for general-purpose electrical testing across DC/AC voltage, current, and resistance measurements. The instrument delivers true RMS readings with a 3½-digit LED display showing ±1999 counts, minus sign polarity indication, and overrange status via leftmost ‘1’ display. Built-in overload protection, UL1244/CSA231/EN61010-1 certification, and a ruggedized case with locking multiposition handle ensure field durability and safety compliance.
– Technical Specifications
DC Voltage: 200 mV to 500 V ranges; ±(0.5% + 1 count) accuracy; 500 VDC maximum input.
AC Voltage: 200 mV to 500 V ranges; ±(1.0% + 4 counts) accuracy; 350 VRMS / 500 V (DC + peak AC) maximum; true RMS sine wave display.
DC Current: 200 µA to 10 A ranges; ±(1.0% + 1 count) accuracy; 2 A fused, 10 A unfused maximum input.
AC Current: 200 µA to 10 A ranges; ±(1.5% + 4 counts) accuracy; 650 V peak maximum input voltage (current to common); true RMS sine wave display.
Resistance: 200 Ω to 20 MΩ ranges; ±(0.75% + 1 count) accuracy; 500 V (DC + peak AC) maximum input.
Additional Functions: Diode testing. Power source: not exceeding 250 VRMS between supply conductors or either conductor and ground.
– Key Features
• True RMS measurement capability for AC voltage and current
• Separate 10 A unfused and V–Ω input jacks for flexible test lead configuration
• LED display with automatic polarity and overrange indication
• Multiposition locking handle enables instrument stacking
• UL and CSA safety certification
– Typical Applications
Electrical troubleshooting, field service, maintenance testing, and circuit verification in industrial and commercial environments.
– Compatibility & Integration
The ruggedized case and foldable handle design permit stacking with other instruments in the same series, optimizing portable test kit configuration.
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