DFG-RS3-Series

Supported Applications

The Omega DFG-RS3 is a universal digital indicator designed for displaying measurements from interchangeable Series RLC force sensors and RTQ torque sensors. The system supports handheld operation or mounting to fixtures and test stands for laboratory and industrial testing requirements.

• Force measurement using tension/compression load cells
• Torque measurement using reaction torque sensors

Operating Conditions & Performance

The DFG-RS3 indicator features a high-speed 2000 Hz sampling rate and operates within an ambient temperature range of 4 to 38°C (40 to 100°F). The unit is rated for humidity up to 96% RH non-condensing. Measurement capabilities span force ranges from 0.25 to 10,000 lb and torque ranges from 10 oz-in to 100 lb-in.

Accuracy varies by the specific sensor series connected:

• RLC01, RLC03: ±0.15% of full scale
• RLC02: ±0.5% of full scale
• RLC04: ±0.2% of full scale
• RTQ50: ±0.35% of full scale

Configuration Options

The series supports a wide envelope of interchangeable sensors and accessories to accommodate specific testing needs.

Sensor Families & Capacities

• RLC01 Series: Tension/Compression load cells, capacities ±50 lbs to ±10,000 lbs (±0.15% accuracy).
• RLC02 Series: Compression-only load cells, capacities 0 to 100 lbs through 0 to 10,000 lbs (±0.5% accuracy).
• RLC03 Series: Low capacity tension/compression load cells, ±0.25 lbs to ±100 lbs (±0.15% accuracy).
• RLC04 Series: Miniature tension/compression load cells, ±0.25 lbs to ±100 lbs (±0.2% accuracy).
• RTQ50 Series: Reaction torque sensors, capacities ±10 oz-in through ±100 lb-in (±0.35% accuracy).

Indicator Features & Outputs

The DFG-RS3 indicator includes a large backlit graphics display with live load bargraph and set point markers. It provides USB data output configurable to 115,200 baud for individual data points via the 'DATA' key. The unit supports programmable setpoints with pass/fail indicators.

Power & Accessories

• Powered by a rechargeable battery or AC adapter (included).
• Included items: Carrying case, USB cable, resource CD, and certificate of conformance.
• The DFG-RSA programmable adapter is available to calibrate most bridge-type force or torque sensors with 1 to 3 mV/V full scale output.

Key Product Differences

The series distinguishes between the main indicator unit and various sensor configurations. The DFG-RS3 is the economical force/torque indicator for use with remote sensors, while the DFG-RSA serves as a user-configurable remote sensor adaptor.

Sensor selection determines measurement type (tension/compression vs. compression-only) and accuracy class. Calibration and configuration data are stored in the smart connector of each RLC or RTQ sensor, allowing true interchangeability between sensors without re-calibrating the indicator itself. All RLC and RTQ sensors include a NIST traceable calibration certificate.