LC703

Supported Applications

The Omega LC703 and LCM703 series comprises miniature, low-profile tension link load cells designed for universal tension and compression measurement. The product overview identifies these rugged sensors as suitable for robotics, automated weighing systems, and batch-process control systems.

Operating Conditions & Performance

The LC703/LCM703 series operates within an ambient temperature range of -40 to 82°C (-40 to 180°F), with a compensated temperature range of 16 to 71°C (60 to 160°F). The sensors feature an IP54 protection class and are supplied with a 3.6 m (12') shielded 4-conductor PVC cable.

Performance specifications vary by capacity:

• Linearity & Hysteresis: ±0.15% for ranges of 10 to 100 lb and 5 to 50 kgf; ±0.10 FSO for ranges above 100 lb and 75 to 500 kgf.
• Repeatability: ±0.05% across the series.
• Zero Balance: ±1.0% FSO.
• Safe Overload: 150% of capacity; Ultimate Overload: 300% of capacity.

The series supports excitation voltages up to 10 Vdc (15V max) with a nominal output signal of 2 mV/V. Output resistance is specified as 350 ±10 Ω, and input resistance is 360 Ω minimum.

Configuration Options

The series offers standard inch-based models (LC703) and metric models (LCM703), covering measurement ranges from 10 lb to 1000 lb and 5 kgf to 500 kgf. Construction materials depend on the capacity: aluminum is used for capacities ≤100 lb or ≤50 kg, while 17-4 PH stainless steel is used for capacities >100 lb or >50 kg.

Physical dimensions scale with capacity:

• Height (H): 19 mm (0.75 in) for lower ranges; 25 mm (1.0 in) for higher ranges.
• Length (L MAX): Ranges from 38 mm (1.50 in) to 44 mm (1.75 in).
• Width (W): Varies between 14 mm (0.54 in), 17 mm (0.66 in), and 24 mm (0.93 in).

Threaded connections are provided for mounting, with options including:

• Inch Threads: 10-32 x 0.20, ¼-28 x 0.23, and ⅜-24 x 0.38.
• Metric Threads: M5 x 0.8-6H, M6 x 1.00-6H, and M10 x 1.5-6H.

The series is compatible with specific rod ends (REC-010M, REC-014M, REC-038M for inch; MREC-M5M, MREC-M6M, MREC-M10M for metric) and meters including the DPIS, DP41-S, and DP25B-S.

Key Product Differences

The LC703 series distinguishes between standard inch models (LC703-) and metric models (LCM703-). The model number guide indicates capacities such as 10, 25, 50, 75, 100, 150, 200, 300, 500, 750, and 1K for the LC703 line. The LCM703 metric line includes capacities of 5, 10, 25, 50, 75, 100, 150, 250, and 500 kgf.

Dimensional differences correlate with capacity tiers. The smallest units (10 lb / 5 kgf) feature a maximum length of 38 mm (1.50 in), while the largest capacities (up to 1K lb or 500 kgf) extend to 44 mm (1.75 in). Thread sizes increase with capacity, transitioning from M5/10-32 for entry-level models to M10/⅜-24 for high-capacity stainless steel variants.