Daytronic Corporation - 400 Series Low-Profile Load Cells

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General-Purpose
Low-Profile Load Cells

400 Series

25 - 300 lb.

500 - 5000 lb.

These load cells are environmentally sealed, temperature-compensated strain gage sensors capable of highly accurate, highly reliable force measurement under the toughest laboratory and industrial conditions.

They demonstrate exceptional structural resistance to damage or measurement error ("crosstalk") from off-axis loading, side loading, and other extraneous forces and bending moments ("eccentric" loading can also arise from unlevel mounting or thermal expansion of supporting structures. The table below lists 400 Series Limit Load Values for static application. These are maximum extraneous forces and moments that can be applied singly and simultaneously with half the nominal load capacity without causing transducer damage or a permanent shift of zero or calibration. Actual measurement errors ("crosstalk") for each of the limit values tabulated are typically less then 0.2% of the rated (full-scale) output. NOTE: Load cells are designed to respond only to the force component parallel to the loading axis.).

Unique flexure designs, using low deflection values and premium alloy materials, give exceptional fatigue life, plus excellent linearity and hysteresis characteristics. Optional dual bridge is available on request.

All 400 Series transducers may be used in both tension and compression. Standard models in stock cover nominal ranges from ą25 through ą5000 pounds, with smaller or larger ranges available on special order. All models incorporate sealed barometrically compensated construction, and exhibit a typical zero shift of less then 0.2% of full scale for ambient pressure changes of ą2 psi.

Individually tested and calibrated in both tension and compression, each 400 Series transducer is supplied with both "mV/V" and shunt-resistor calibration data, traceable to the National Bureau of Standards.

General Specifications are given below, as are specifications for Load Cell Accessories that may be used with the 400 Series.

400 Series

Load Cell Model	Nom. Load Capacity* (lb. / N)	Ringing Frequency** (Hz)	Limit Loads
Load Cell Model	Nom. Load Capacity* (lb. / N)	Ringing Frequency** (Hz)	Bending Moment (M) (lb.-in. / N-m)	Shear (S) (lb. / N)	Torque (T) (lb.-in. / N-m)
400-25	ą25 ą125	2100	150 17	150 667	40 4.5
400-50	ą50 ą200	2800	150 17	150 667	40 4.5
400-100	ą100 ą500	3800	180 20	250 1100	40 4.5
400-200	ą200 ą1000	5400	180 20	250 1100	40 4.5
400-300	ą300 ą1500	7000	180 20	250 1100	40 4.5
400-500	ą500 ą2000	1600	2800 316	1400 6200	1100 124
400-1K	ą1000 ą5000	2000	3900 441	2000 8900	1100 124
400-2K	ą2000 ą10000	3200	5000 565	2800 12500	1100 124
400-3K	ą3000 ą15000	4100	5500 621	3400 15100	1100 124
400-5K	ą5000 ą20000	5000	5500 621	4200 18700	1100 124
* Metric rating approximate only. ** Calculated or determined by test with no external force or load.

General 400 Series Specifications [Top ]
Dimensions (in. / cm) for Models 400-25 through 400-300

Dimensions (in. / cm) for Models 400-500 through 400-5K

Deflection at Nominal Load Limit	Models 400-25 through 400-300: ą0.003 in. (ą0.008 cm) Models 400-500 through 400-5K: ą0.005 in. (ą0.013 cm)
Bridge	Four-arm bonded foil gages, 350 Ω nominal
Number of Bridges	1 or 2
Insulation Resistance, Bridge/Case	Greater than 5000 MΩ at 50 VDC
Excitation	20 V maximum, DC or AC (RMS)
Output (nominal)	Models 400-25 through 400-300: 2 mV/V ą 0.25% of full scale Models 400-500 through 400-5K: 3 mV/V ą 0.25% of full scale
Zero Balance	ą1.0% of full scale
Linearity and Hysteresis	Models 400-25 through 400-300: ą0.05% of full scale, max. Models 400-500 through 400-5K: ą0.10% of full scale, max.
Repeatability	Models 400-25 through 400-300: ą0.02% of full scale Models 400-500 through 400-5K: ą0.05% of full scale
Overload Capacity	150% of nominal rating (static)
Compensated Temperature Range	+70° F to +170° F (+21° C to +77° C)
Operating Temperature Range	-65° F to +200° F (-54° C to +93° C)
Fatigue Life	100 million cycles at 0 to 50% of nominal rating (minimum); 50 million cycles at +50% to -50% of nominal rating (minimum)

Load Cell Accessories [Top ]

Load Buttons

"A" (in.)	"B" (in.)	"C" Thread (in.)	"R" (in.)
17/32	3/8	1/4 - 28	1.0
3/4	3/8	1/4 - 20	2.0

Rod Ends

"A" (in.)	"B" (in.)	"C" Bore (in.)	"D" (in.)
1	1.562	0.2500	3/4
1 1/2	2.438	0.500	1 5/16
"W" (in.)	Thread (in.)
0.375	1/4 - 28
0.625	1/4 - 20

Load Platform

May be used with all models of the 400 Series, 434A Series, and 434AM Series.

"A" (in.)	"B" (in.)	"C" (in.)
2.652	0.625	0.250
3.125	0.937	0.312
"D" (in.)	"E" Thread (in.)
0.500	1/4 - 28 UNF
0.750	1/2 - 20 UNF

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