LC20N3-G Torque Wrench Checker, 0.5-20 N.m

Tohnichi LC20N3-G is a compact digital torque wrench line checker from the LC3-G series, designed for efficient on-site calibration and verification of torque wrenches and screwdrivers in production environments. Featuring a wide torque range, high-resolution display with color-coded OK/NG judgments, and robust data logging capabilities, it supports quick peak and run measurements while ensuring compliance with quality standards like CE marking.

Key Measurement Specifications

• Torque Range: 0.5–20 N·m (primary); convertible to cN·m (5–2000), kgf·cm (5–200), lbf·in (5–174)
• Resolution (varies by unit and sub-range):
  • N·m: 0.002 (0.5–0.998), 0.01 (1.00–9.99), 0.1 (10.0–20.0)
  • kgf·cm: 0.02 (5–99.8), 0.2 (100–999), 2 (1000–2000)
  • lbf·in: 0.02 (5–99.9), 0.2 (100–174)
• Accuracy: ±1% F.S. + 1 digit
• Measurement Modes: RUN (continuous for dial-type), PEAK (max hold for click-type), CA (for QSPCA tools)
• Units: 6 selectable (N·m, cN·m, kgf·cm, kgf·m, lbf·in, lbf·ft)

Physical and Environmental Specifications

• Dimensions (W × D × H): 278 × 160 × 167 mm (10.9 × 6.3 × 6.6 in)
• Weight: Approx. 10.5 kg (23.1 lbs)
• Inlet Drive: □9.53 mm (3/8 inch square)
• Operating Temperature: 0–40°C (no condensation; warm-up 30+ min recommended)
• Power Supply: AC adapter BA-6 (input AC 100–240V, output DC 12V/1A)
• Data Memory: Up to 1000 data points; supports statistical processing (max/min/avg, with timestamps)

Key Features

• Chucking System: Fixed inlet socket with hexagon head adapters for wrenches; socket adapter for drivers
• Display and Controls: Backlit LCD (3/5 digits); color alerts (blue for OK, red for HI/LO-NG) with up to 10 limit sets
• Data Output: RS-232C and USB (B-type) for PC/printer export (CSV-compatible); baud rates up to 19200 bps
• Additional Functions: Auto zero (under 1 N·m), over-torque alarm (110% F.S.), auto memory/reset (0.1–5.0 s), key sound toggle, built-in clock
• Applications: Line calibration of click-type (e.g., QL/SP), dial-type (e.g., DB/F), and screwdriver tools; CW direction only
• Standards Compliance: CE marked; RoHS compliant