Digi-Sense Industrial Digital Multimeters (model 20250-53; TRMS model 20250-54) are a must-have on your electrical tool belt—especially for those who need a rugged and reliable meter. These versatile and simple-to-use units safely measure the full range of common parameters including voltage, current, resistance, capacitance, frequency, temperature, and more. All this technology is packaged in a double-insulated housing that meets IP67 requirements. The instruments are fully tested and calibrated to NIST-traceable standards. Careful use of the meter will provide years of reliable service.
This user manual covers the operation of DLE’s industrial-grade digital multimeters, models 20250-53 and 20250-54. Both models feature IP67 protection, NIST-traceable calibration, and double insulation for safety. The 20250-54 includes True RMS measurement and additional functions like MAX/MIN and PEAK Hold. Safety precautions are emphasized, including proper range selection, de-energizing circuits, and using fused test leads for high-energy systems. The manual details setup, measurement procedures, and specifications for voltage, current, resistance, frequency, and temperature.
| Accuracy (Frequency) | ±1.0% rdg ± 3 dgts |
|---|---|
| Temperature Range (Model 20250-54) | -4 to 1400°F |
| Test Current (Diode) | 1 mA typical, open max 0.3 V |
| Insulation Class | Class 2, Double insulation |
The terminals are rated for a maximum of 500V.
The resolution is 100 Hz.
The range is –4 to 1400°F or –20 to 760°C.
The overload protection is 1000 V DC or AC RMS.