The CDI COMPUTORQ II 501CI 2 is an electronic torque wrench that delivers precise force measurement across a 0.56–5.6 Nm range with ±1% accuracy. This 1/4″ drive instrument combines programmable torque limits with dual-mode operation (peak hold and track) to capture and store up to 4000 measurements in internal memory. Equipped with visual and audible alert systems, directional capability for clockwise and counter-clockwise application, and RS232 data download functionality, the unit serves critical assembly, calibration, and quality assurance workflows in laboratory and production environments.
Technical Specifications
• Model: 501CI-II
• Drive Size: 1/4″
• Torque Range: 0.56–5.6 Nm (5–50 in. lb., 0.4–4.2 ft. lb., 5.6–57 dNm, 5.7–57 cmkg, 0.057–0.56 mkg)
• Torque Increment: 0.01 Nm, 0.01 in. lb., 0.001 ft. lb., 0.01 dNm, 0.01 cmkg, 0.001 mkg
• Accuracy: ±1% of indicated value (20% to 100% FS, CW & CCW); ±1% plus 5 increments (10% to 20% FS)
• Unit Selection: Seven torque units—Ft. Lb., In. Lb., In. Oz., Nm, dNm, cmkg, mkg
• Data Capacity: 4000 stored torque values
• Power: 9V alkaline battery, ~60 hours operation
• Weight: 1.5 lbs
• Standards: Meets or exceeds ASME B107.28-2005 and appropriate ISO standards
– Key Features
• Dual operating modes: peak hold captures maximum applied torque; track mode records steady-state values via keypad control
• Programmable upper and lower torque limits with independent threshold alerts
• Bi-directional operation supports both clockwise and counter-clockwise measurement
• Green light and audible beep signal target achievement; red flashing indicator and alarm tone signal limit exceeded
• RS232 interface with selectable baud rates (300–19200) enables direct download to printer or computer data logger
• Auto power-off feature conserves battery life during idle periods
– Typical Applications
Critical fastener assembly, mechanical calibration verification, quality assurance torque validation, laboratory force measurement, and production line torque audits.
– Compatibility & Integration
RS232 data output supports connection to external data loggers and printers. Factory calibration by CDI Torque Products maintains ASME/ISO certification; user calibration voids factory certification.
