FX1901 Compression Load Cell
High Reliability Design for OEM,
Appliance and Medical Applications
10 – 100 lbf Ranges
Compact Coin Cell Package
Anti-Rotation Mounting Features
CE Compliance
FX1901 www.meas-spec.com June 2011
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DESCRIPTION
The FX1901 units are intended for OEM use in laboratory, hospital or consumer product applications,
establishing a breakthrough price/performance value for compression load cells. The FX1901 is a 1% load cell
device with full scale ranges of 10, 25, 50 or 100lbf compression. This new, low-cost technology enables force
sensing in a whole new class of "smart" consumer and medical products.
MEAS’ proprietary Microfused™ technology, derived from demanding aerospace applications, employs
micro-machined piezoresistive strain gages fused with high temperature glass to a high performance stainless
steel force measuring flexure. Microfused™ technology eliminates age-sensitive organic epoxies used in
traditional load cell designs, providing excellent long term span and zero stability. Operating at very low strains,
Microfused™ technology provides an essentially unlimited cycle life expectancy, superior resolution, high over-
range capabilities and a ratiometric span of 20 mV/V. The combination of stamped flexures and micro
miniaturized MEMs strain gages permits low costs to be achieved in high volume OEM applications ranging
from disposable medical devices to durable appliances and exercise equipment.
FEATURES APPLICATIONS
Small Assembly Forces
Low Noise Physical Therapy Devices
Robust: High Over-Range Patient Weight
High Reliability Hand Tool Forces
mV Output: 20 mV/V Nominal
Low Deflection
Chiropractic and Exercise Equipment
Consumables Monitoring: Copy Equipment and
Vending systems
Fast
Essentially Unlimited Cycle Life
Appliance Payload Monitoring: Washers, Dryers,
Water Weight, Extraction Efficiency
Appliance Unbalance Monitoring
STANDARD RANGES
Range lbf
0 to 10
0 to 25
0 to 50
0 to 100
FX1901 Compression Load Cell
PERFORMANCE SPECIFICATIONS
Supply Voltage: 5.0V, Ambient Temperature: 25°C (unless otherwise specified)
PARAMETERS MIN TYP MAX UNITS NOTES
Span 16 20 24 mV/V 1
Zero Force Output ±15 mV 1
Accuracy (non linearity, hysteresis and repeatability) ±1 %Span 2
Input Resistance 3 kΩ
Output Resistance 2.2 kΩ
Temperature Error – Zero ±8 %Span 3
Temperature Error – Span ±2.5 %Span 3
Long Term Stability (1 year) ±1 %Span
Maximum Overload 2.5X Rated
Compensated Temperature 0 50 °C
Operating Temperature 0 50 °C
Storage Temperature -40 +85 °C
Excitation Voltage 2 5 10 Vdc
Isolation Resistance (250Vdc) 50 MΩ
Deflection at Rated Load 0.05 mm
Humidity 0 90 %RH
Weight 8.1 grams
For custom configurations, consult factory.
Notes
1. Ratiometric to supply.
2. Best fit straight line.
3. Maximum temperature error over compensated range with respect to 25°C.
CE Compliance
IEC61000-4-2 [4 kV/ 4 kV (Air/Contact)]
IEC61000-4-3 (3 V/m)
IEC55022 Class A
FORCE APPLICATION
LOAD MUST ONLY BE APPLIED TO THE
CONCENTRATOR TIP IN THE CENTER OF
THE SENSOR TO MAINTAIN ACCURACY
FX1901 www.meas-spec.com June 2011
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FX1901 Compression Load Cell
DIMENSIONS
CONNECTIONS
FX1901 www.meas-spec.com June 2011
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FX1901 Compression Load Cell
FX1901 www.meas-spec.com June 2011
ORDERING INFORMATION
FX19 0 1 - 0001 - 100 L
Specials (0001 = Standard, nnnn = Custom Design)
Output (0 = 20mV)
Model
Connection (1 = 2ft Cable)
Units (L = lbf)
Force Range
NORTH AMERICA EUROPE ASIA
Measurement Specialties
45738 Northport Loop West
Fremont, CA 94538
Tel: 1-800-767-1888
Fax: 1-510-498-1578
Sales: pfg.cs.amer@meas-spec.com
Measurement Specialties
(Europe), Ltd.
26 Rue des Dames
78340 Les Clayes-sous-Bois, France
Tel: +33 (0) 130 79 33 00
Fax: +33 (0) 134 81 03 59
Sales: pfg.cs.emea@meas-spec.com
Measurement Specialties
(China), Ltd.
No. 26 Langshan Road
Shenzhen High-Tech Park (North)
Nanshan District, Shenzhen 518057
China
Tel: +86 755 3330 5088
Fax: +86 755 3330 5099
Sales: pfg.cs.asia@meas-spec.com
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for
inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the
manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement
Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does
Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims
any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different
applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement
Specialties, Inc. does not convey any license under its patent rights nor the rights of others.
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