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IET Labs OS-260 ohmSOURCE Microprocessor Resistance Set – OS-260
IET Labs OS-260 ohmSOURCE Microprocessor Resistance Set provides a revolutionary handheld solution for sensor simulation, acting as a precision thermal calibration unit and RTD calibrator with microprocessor control to automatically eliminate residual resistance.
- Range: 1 Ω to 24 MΩ with 1.0W power rating.
- Intelligence: Built-in translation tables for RTD and thermistors.
- Interface: Calculator-style keypad with memory recall keys.
- Safety: Integrated current limiter to prevent DUT damage.
- Display: Dual display showing resistance and sensor units.
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Description
IET Labs OS-260 ohmSOURCE – Microprocessor Controlled Resistance Set
The IET Labs OS-260 ohmSOURCE is a revolutionary microprocessor-controlled resistance decade box designed to deliver elite operational precision for RTD calibration and sensor simulation. By addressing the limitations of mechanical decade boxes, this handheld instrument utilizes an intuitive keypad interface to provide highly accurate resistance values up to 24 MΩ. The metrological architecture of the OS-260 ensures absolute traceability, featuring a dual graphic display that shows both resistance and the translated unit of measure (such as temperature for RTDs) simultaneously, effectively reducing measurement uncertainty in complex field service audits.
Built for industrial versatility, the OS-260 incorporates innovative features such as a current limiter to prevent damage and an “Open Key” for 100% mechanical isolation from the application. The engineering trust of this unit is reinforced by its ability to store frequently used values in 14 memory locations and its automatic elimination of residual resistance. With an accuracy of ±0.1% for values over 1 kΩ and a robust handheld design, the IET Labs OS-260 stands as a high-trust solution for managing resistance stimulus with consistent professional-grade accuracy in medical, automotive, and telecommunications testing.
Technical Specifications & Metrological Data
- Resistance Range: Rmin (~1 Ω) to 24 MΩ with a high-fidelity 0.1 Ω resolution.
- Accuracy Profile: ±0.5 Ω (under 1 kΩ) and ±0.1% (over 1 kΩ) with no zero-subtraction required.
- Power Rating: Robust 1.0 Watt capacity for a wide range of industrial applications.
- Sensor Simulation: Integrated tables for RTD, Thermistor, Strain Gauge, and Conductivity sensors.
- Memory Functions: 4 Quick Value keys and 10 additional memory locations for rapid recall.
- Safety Logic: Programmable current limiter and mechanical isolation key.
- Portability: Handheld 1.1 lb design powered by 4 standard AA alkaline batteries.
IET Labs OS-260 ohmSOURCE Microprocessor Resistance Set
| Brand | IET Labs |
| Model | OS-260 |
| Range | ~1 Ω to 24 MΩ with 0.1 Ω Resolution |
| Interface | Microprocessor Keypad, Dual Graphic Display (Ω & Temp) |
| Metrology | ±0.1% Accuracy (>1kΩ), Auto Residual Resistance Elimination |
| Application | RTD Calibration, Field Service Audits, Medical Testing |
| Origin | USA |
| Warranty | 1 Year |
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