LC704-LC714

Supported Applications

The Omega LC704 and LC714 series are high-capacity tension link load cells calibrated in tension, designed for measuring tensile forces ranging from 5,000 lb to 1,000,000 lb (0–2269 kgf to 0–453,721 kgf). These inline sensors feature a male-to-female thread connection and all-stainless steel construction for heavy-duty service. Documented applications include cranes, support rods in architectural designs, engine test beds, suspension bridges, and industrial weighing systems.

Operating Conditions & Performance

The series operates within an ambient temperature range of -34 to 121°C (-30 to 250°F), with a compensated temperature range of 16 to 71°C (60 to 160°F). Electrical performance includes a bridge resistance of 350 Ω and an output signal of 2 mV/V ±0.25% FSO, requiring an excitation voltage of 10 Vdc with a maximum of 15 Vdc. The load cells carry NIST Standard and CE approvals.

Key performance specifications include:

• Accuracy Class: ±0.15% FSO
• Hysteresis: ±0.10% FSO
• Repeatability: ±0.05% FSO
• Safe Overload: 150% of capacity
• Ultimate Overload: 300% of capacity
• Protection Class: IP67

Thermal effects are specified as ±0.005% FSO/°C (±0.009%FSO/°F) for both zero and span.

Configuration Options

The series is available in two primary configurations distinguished by electrical connection style:

• LC704 Series: Features a 1.8 m (6') 4-conductor cable as standard. Additional cable length can be ordered by adding the desired feet to the model number.
• LC714 Series: Equipped with an integral DT02H-10-6P connector or equivalent, requiring a separate mating connector (PT06F10-6S).

Capacities span from 5K to 1M lb. Dimensions vary by capacity range:

• 5K to 10K: Overall length A: 146 (5.75) mm (in); Thread T1/T2: 1-14 UNS-2A/B
• 20K to 50K: Overall length A: 165 (6.50) mm (in); Thread T1/T2: 1½-12 UNF-2A/B
• 75K to 100K: Overall length A: 229 (9.00) mm (in); Thread T1/T2: 2¼-12 UN-2A/B
• 150K to 200K: Overall length A: 305 (12.00) mm (in); Thread T1/T2: 3-8 UN-2A/B
• 250K to 1,000K: Dimensions are available upon consultation with sales.

The series comes complete with a 5-point NIST-traceable calibration and 59 kΩ shunt data. An amplified 0 to 5V output is available by adding the "-5V" suffix to the model number. For calibrations of 150,000 lb in compression or capacities ≥300,000 lb (requiring the "-FS" suffix), consult sales for pricing and delivery.

Key Product Differences

The primary distinction between model families is the electrical interface: LC704 models utilize a fixed-length cable assembly, while LC714 models integrate a twist-lock connector. Both series share identical mechanical construction materials (stainless steel) and performance specifications across their respective capacity ranges.