SF3

As a waterproof version of the MC3A, the SF3 is built with expert precision to provide extremely accurate force and moment measurements even when submerged to depth. Manufactured from heat-treated stainless steel, this six-channel sensor is filled with mineral oil and features a pressure compensation bladder that reacts to higher and lower pressure environments to maintain zero pressure difference throughout submersion. The SF3 is rated for submersion in fresh water to depths of 70m for one continuous week.

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This transducer has a compact, 3 in. cube body with threaded inserts on its top surface and through-holes on the bottom acting as convenient attachment points. It’s available in five different load capacities between 100 lbs and 2,000 lbs (see Specifications Tables). The SF3 measures with strain gage sensing elements and is equipped with a 19-pin Glenair connector for guaranteed protection throughout submersion.

See the Specifications Tables below for more details.

Complete your system with our state-of-the-art Gen-5 amplifier

AMTI's Gen-5 signal conditioner (amplifier) features advanced functionality and built-in digitization to provide you with a powerful and flexible system. Connect to your PC and start collecting data straight out of the box.

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System Information

AMTI's industrial sensors can be paired with optional components to create a complete system.

GEN-5 Amplifier

Advanced signal conditioner
Pairs with multi-axis sensors or legacy plates
USB 2.0 digital or analog outputs

Transducer Cable

19-pin Glenair waterproof connector
Connects force sensor to amplifier
Data transfer and power supply

NetForce

Basic data acquisition software
Compatible with AMTI force plates & sensors
Export to .bsf or text file for post-processing

Specifications & Details

Review detailed force transducer specifications and model versions below.

General Specifications

Dimensions 76 x 76 x 76 mm
Weight 2 kg
Temperature Range -18°C to 50°C
Channels Fx, Fy, Fz, Mx, My, Mz
Body Material Stainless Steel
Excitation 10V Maximum
Fx, Fy, Fz Hysteresis <1% full scale output
IP Rating IP68 (70 m)
Analog outputs 6 channels
Digital outputs USB, with GEN-5
Sensing Elements Strain gage bridge
Amplifier GEN-5 available for purchase
Crosstalk* < 2% on all channels
Fx, Fy, Fz non-linearity ±0.2% full scale ouptut
Available Capacities (Fz, lb) 100, 250, 500, 1000, 2000

Dimensions 3 x 3 x 3 in
Weight 4.4 lb
Temperature Range 0°F to 125°F
Channels Fx, Fy, Fz, Mx, My, Mz
Body Material Stainless Steel
Excitation 10V Maximum
Fx, Fy, Fz Hysteresis <1% full scale output
IP Rating IP68 (70 m)
Analog outputs 6 channels
Digital outputs USB, with GEN-5
Sensing Elements Strain gage bridge
Amplifier GEN-5 available for purchase
Crosstalk* < 2% on all channels
Fx, Fy, Fz non-linearity ±0.2% full scale ouptut
Available Capacities (Fz, lb) 100, 250, 500, 1000, 2000

Capacities, Sensitivities & Frequencies

The table below provides a comparison of the available capacity models for this force sensor

Model Name Suffix (Fz, lbs)	100	250	500	1000
Fx, Fy Capacity (N)	225	555	1115	2225
Fz Capacity (N)	445	1115	2225	4450
Mx, My Capacity (Nm)	11	28	56	110
Mz Capacity (Nm)	5.6	14	28	56
Fx, Fy Sensitivity (µV/V-N)	5.40	2.70	1.35	0.67
Fz Sensitivity (µV/V-N)	1.35	0.67	0.34	0.17
Mx, My Sensitivity (µV/V-Nm)	266	137	71	35
Mz Sensitivity (µV/V-Nm)	212	106	53	27
Lowest Natural Frequency* (Hz)	300	500	700	1000

Model Name Suffix (Fz, lbs)	100	250	500	1000
Fx, Fy Capacity (lb)	50	125	250	500
Fz Capacity (lb)	100	250	500	1000
Mx, My Capacity (in-lb)	100	250	500	1000
Mz Capacity (in-lb)	50	125	250	500
Fx, Fy Sensitivity (µV/V-lb)	24	12	6	3
Fz Sensitivity (µV/V-lb)	6	3	1.5	0.75
Mx, My Sensitivity (µV/V-in-lb)	30	15.5	8	4
Mz Sensitivity (µV/V-in-lb)	24	12	6	3
Lowest Natural Frequency* (Hz)	300	500	700	1000

*The listed natural frequency is the lowest natural frequency for the force sensor and will dominate.

Technical Drawings

SF6 Outline Drawing

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