IET Labs OS-270 Electronic Resistance Box
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IET Labs OS-270 is an electronic resistance box with resistance range up to 1.5 MΩ, accuracy of 0.01%, and resolution of 0.01Ω.
Product details
| Model | OS-270 |
| Manufacturer | IET Labs |
| Category | Decade Boxes |
| Availability | Made to order |
Description
Overview
The IET Labs OS-270 is a microprocessor-controlled electronic resistance box designed for precise resistance calibration and sensor simulation. The handheld unit is suitable for automotive, medical, test and measurement, and telecommunications industries.
Key Features
- Microprocessor-controlled operation with calculator-style keypad interface
- Quick Value Keys to store and recall up to four frequently used resistance values with one touch
- Up to 10 additional memory locations (0-9) for storing resistance values
- Optional translation tables for converting from custom units to resistance values (requires RS-232 interface)
- Current limiter to prevent damage from excessive current
- Open Key for complete mechanical isolation from the application
- Sensor simulation dual display for RTD, NTC thermistors, conductivity, and strain gauges
- Automatic residual resistance elimination in output values
- Increment value setting with user-defined or standard increments (1%, 5%, 10%)
Applications
- RTD (Platinum Resistive Temperature Device) calibration
- Thermistor simulation and measurement
- Strain gauge testing
- Potentiometric sensor simulation (position, level)
- Conductivity measurement
Specifications
| Resistance Range | Rmin to 1.5 MΩ |
| Resolution | 0.01 Ω |
| Accuracy | ±0.1 Ω for 1 kΩ and under, ±0.01% for over 1 kΩ |
| Power Rating | 1.0 W |
| Power Supply | 4 AA alkaline batteries |
| Physical Dimensions | 7.68 x 4 x 1.75 in |
| Weight | 1.1 lb |
| Control Interface | Microprocessor-controlled with keypad |
| Memory Locations | 10 additional (0-9) plus 4 quick-access keys |
| Sensor Simulation Modes | RTD, NTC thermistors, conductivity, strain gauges |
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IET Labs OS-270 Electronic Resistance Box
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