LCKD

Supported Applications

The Omega LCKD Series consists of subminiature, button-style compression load cells designed for measuring compressive forces in industrial and test environments. These units are engineered as highly cost-effective solutions suitable for severe operating conditions where space is constrained. The series utilizes high-quality strain gages and precision manufacturing techniques to provide reliable force measurement.

Each LCKD unit features a load button machined as an integral part of the cell, requiring installation on a flat surface with a diameter matching the D1 dimension for proper operation. These products are not designed for use in human applications.

Operating Conditions & Performance

The LCKD Series operates within an ambient temperature range of -65° to 225°F (-54 to 107°C), with a compensated temperature range specified as 60 to 160°F (16 to 71°C). The cells are constructed from stainless steel and carry an IP54 enclosure rating. Performance specifications include linearity of ±0.25% FSO, hysteresis of ±0.25% FSO, repeatability of ±0.10% FSO, and zero balance of ±2% FSO.

Temperature effects are documented as 0.01% full scale/°F for Zero and 0.01% of reading/°F for Span. The bridge resistance is a minimum of 350 Ω using bonded foil gages, with an excitation voltage requirement of 5 Vdc (7 Vdc maximum). Full-scale deflection ranges from 0.001" to 0.003", and the safe overload limit is rated at 150%.

Configuration Options

The series offers a broad measurement envelope covering capacities from 1 kg (9.8 N) up to 1000 lb (4448 N). Standard inch-based models include LCKD-1KG, LCKD-5, LCKD-10, LCKD-25, LCKD-50, LCKD-100, LCKD-250, LCKD-500, and LCKD-1000. Metric models (LCMKD) are also available in the series documentation with capacities ranging from 10 N to 5000 N.

Key configurable dimensions vary by capacity range:

• Low Capacity Range (1 kg to 50 lb / 10 to 200 N): D1 diameter of 9.6 mm (0.38"), H height of 3.0 mm (0.12").
• Mid Capacity Range (100 to 250 lb / 500 to 1000 N): D1 diameter of 13 mm (0.50"), H height of 3.8 mm (0.15").
• High Capacity Range (500 to 1000 lb / 2000 to 5000 N): D1 diameter of 19 mm (0.75"), H height of 6.4 mm (0.25").

All units include a 1.5 m (5 ft) four-conductor insulated cable with an integrated temperature compensation board. The output signal is nominally 2 mV/V, and each unit ships with a calibration sheet stating full-scale output.

Electrical Connections

The wiring code for the LCKD Series is standardized as follows:

• RED: (+) EXCITATION
• BLACK: (-) EXCITATION
• GREEN: (-) OUTPUT
• WHITE: (+) OUTPUT

Key Product Differences

The LCKD Series is distinguished by its subminiature button form factor and all-stainless-steel construction. The series includes both standard inch-based models (LCKD prefix) and metric-capacity variants (LCMKD prefix), though the primary focus of this bundle is the LCKD line.

Physical dimensions, specifically D1 diameter and H height, scale with capacity to maintain structural integrity across ranges from 2.2 lb up to 1000 lb. The series incorporates a miniature printed circuit board within the lead wire for temperature compensation; this component must not be removed or cut between the board and load cell, as doing so voids calibration and warranty.

Calibration is provided via a 5-point NIST-traceable process with shunt data included. Compatible meters listed in documentation include DPIS, DP41-S, DP25B-S, and iSeries models for specific capacities.