Iet Labs Inc RCS-502

The IET Labs RCS-502 is a dual-function decade box delivering precision resistance and capacitance values in a single compact instrument. It combines 13 decades of selectable resistance (1 Ω to 10 MΩ) and capacitance (100 pF to 100 µF) with 1% accuracy across the combined range, making it essential for calibration, circuit simulation, and precision measurement across laboratory, manufacturing, and field environments. Color-coded thumbwheel switches enable direct reading with error-proof operation - no complex manipulation required. The unit achieves exceptionally low residual values: 0.04 Ω on the lowest resistance decade and 5 pF on the lowest capacitance decade, critical for high-precision work. Housed in durable high-impact plastic with a shielded case and ground terminal, the RCS-502 withstands demanding operational conditions while maintaining accuracy.

Technical Specifications

Resistance Range: 1 Ω to 10 MΩ (13 decades)

Capacitance Range: 100 pF to 100 µF (13 decades)

Combined Decade Range: 0–9.999999 MΩ / 0–99.9999 µF

Accuracy: 1% across combined range (0.1% to 4% depending on specific measurement)

Residual Resistance: 0.04 Ω (lowest decade)

Residual Capacitance: 5 pF (lowest decade)

Power Rating: 500 mW

Dimensions: 188 mm (W) × 110 mm (H) × 60 mm (D)

Weight: 410 g

Protection: 2 A fuse supplied

Key Features

Side-by-side, color-coded thumbwheel switches for intuitive adjustment

Shielded case with ground terminal for noise rejection

Independent or combined resistance/capacitance operation via shorting link

Flexible series or parallel circuit coupling

NIST-traceable calibration included; ISO-17025 and Z540 options available

Typical Applications

Equipment calibration and verification

Circuit simulation and prototype development

Timer, oscillator, and filter tuning

Automated test systems and manufacturing quality control

Field measurements and on-site diagnostics

Educational demonstrations and research

Compatibility & Integration Resistance and capacitance circuits operate independently, in series, or in parallel. A shorting link allows seamless coupling or isolation of the two measurement domains.