BSA Series S-Beam Load Cell

Product Description

BSA S-beam load cell overview

The BSA is a compact alloy steel S-type load cell designed for accurate tension and compression force measurement in light capacity applications from 50 lb up to 200 lb. Its single-ended S-beam geometry and threaded connection points allow it to be installed directly into a load path without additional mounting hardware, making it a practical choice for batching scales, hanging tension links, and OEM equipment where space is at a premium. With a 3.05 mV/V output, IP67 environmental protection, and a 150% safe overload rating, the BSA delivers stable, repeatable performance in both industrial and laboratory settings. It is a direct drop-in replacement for the Rice Lake RL20000, Artech 20210, and RTI 363 load cells.

Capacity range

50 lb

up to 200 lb

Nonlinearity

±0.03%

of rated output

IP rating

IP67

dust & waterproof

Safe overload

150%

of rated capacity

Typical applications

The BSA S-beam load cell is commonly specified for light to medium duty tension and compression applications where a compact, threaded inline sensor is needed.

Batching scales and batching systems

The BSA threads directly into the load path of batching scales and weigh systems, providing stable and repeatable readings in blending, mixing, and ingredient dispensing applications where consistent accuracy is required under cyclic loading.

Tank, hopper, and vessel weighing

Used as a tension link in overhead hanging tank and hopper systems. The BSA's compact S-beam profile and threaded ends allow it to be installed directly in the suspension load path, eliminating the need for separate brackets in many configurations.

Tension and compression force measurement

The S-beam geometry handles pure axial loading in both directions cleanly, making the BSA suitable for tensile test rigs, pull testers, and inline force measurement setups where a compact, affordable sensor is needed at lower force ranges.

Suspended weighing and hanging scales

With threaded connections on both ends and a compact footprint, the BSA integrates easily into hanging scale assemblies, overhead weighing frames, and suspended platform systems in the 50 lb to 200 lb range.

OEM integration and custom builds

The BSA's compact, standardized S-beam footprint and industry-common threaded mounting make it easy to integrate into custom OEM machines, test fixtures, and proprietary weighing platforms, particularly where smaller capacity ranges and a space-efficient profile are required.

Force monitoring and feedback systems

Compatible with standard analog weight indicators, transmitters, and DAQ systems via its 3.05 mV/V output signal. Suitable for real-time force feedback, overload detection, and closed-loop control in light industrial and laboratory environments.

Technical notes

Installation and alignment

S-type load cells require axial alignment between the two threaded connections. Off-axis or side loading will degrade accuracy and may cause premature fatigue. For best results, use swivel rod ends or clevis attachments at both connection points to allow self-alignment under load. All threaded rods must be inserted a minimum of one full thread diameter into each end to ensure structural integrity.

System integration

The BSA operates at a rated excitation of 10V DC/AC (15V max) and produces a 3.05 mV/V analog output signal. It is compatible with any standard weight indicator, PLC analog input, or load cell conditioner accepting a mV/V bridge input. For multi-cell systems, a load cell summing junction box is used to balance and combine outputs before passing a single signal to the indicator.

Key specifications

Rated output

3.05 mV/V

Zero balance

±1%

Nonlinearity / Hysteresis

±0.03%

Temp. effect on output

≤0.002%

Safe temp. range

−10°C
+70°C

Insulation resistance

≥5,000 MΩ

Input impedance

387 Ω

Output impedance

350 Ω

Cable wiring

The BSA ships with a 20 ft (6 m) cable. Standard color code:

■ RED	+Excitation
■ BLACK	−Excitation
■ GREEN	+Signal
■ WHITE	−Signal

Drop-in replacement for

The BSA is a direct mechanical and electrical substitute for the following S-type load cell models. No wiring or mounting changes are required when upgrading or replacing:

➤	Rice Lake RL20000
➤	Artech 20210
➤	RTI 363

Dimensions / 3D Drawings

Download 3D Drawing
BSA-50-200lb.stp

Note: You may need a software that can open/view STEP files.

Data Sheets

BSA.pdf

Interchangeable

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