|
With
ranges of ±5 through ±50000 pounds, the tension/compression load cells
of the 441 Series employ two stabilizing diaphragms which are
welded to the sensing member to reduce off-axis
and side-loading effects (allowable extraneous forces without damage,
as % of load capacity, are given in the Specifications,
below).
Cased
in 17-4 PH stainless steel, each transducer has a threaded hole running
completely through the center of the cell. These models must be used on
a flat, smooth surface to achieve rated specifications.
An
optional 1"-thick center pull plate is available for
attachment to any 411 Series unit. This allows the applied force to
be directed along the load axis. Separate load buttons
(similar to that shown with the 400 Series Load
Cells) may also be obtained, to be threaded directly into the
center hole. If required, any 441 Series load cell can be supplied
with a clearance hole instead of a thread. Contact
the factory for further information concerning these options.
General Specifications are
given below.
|
441
Series
[Back
 ]
|
|
|
|
Load
Cell
Model |
Nom.
Load
Capacity
(lb.) |
Dimensions
(in. / cm) |
"T"
Thread |
"N"
No. of
Holes |
| "A" |
"B" |
"C" |
"D" |
"G" |
"H" |
"K" |
|
441-5 |
±5 |
0.82
2.08 |
0.75
1.91 |
1.25
3.18 |
2.50
6.35 |
2.000
5.080 |
0.80
2.03 |
0.19
0.48 |
1/4
- 28
UNF |
6 |
|
441-10 |
±10 |
| 441-25 |
±25 |
|
431-50 |
±50 |
0.82
2.08 |
0.75
1.91 |
1.25
3.18 |
3.00
7.62 |
2.250
5.715 |
1.00
2.54 |
0.28
0.71 |
3/8
- 24
UNF |
6 |
|
431-100 |
±100 |
| 431-250 |
±250 |
| 431-500 |
±500 |
| 431-1K |
±1000 |
|
431-2K |
±2000 |
0.82
2.08 |
0.75
1.91 |
1.25
3.18 |
3.50
8.89 |
2.625
6.668 |
1.00
2.54 |
0.34
0.86 |
1/2
- 20
UNF |
6 |
|
431-3K |
±3000 |
| 431-4K |
±4000 |
| 431-5K |
±5000 |
|
441-7500 |
±7500 |
1.25
3.18 |
1.50
3.81 |
2.00
5.08 |
5.50
13.97 |
4.500
11.43 |
1.80
4.57 |
0.40
1.02 |
1
- 14
UNS |
8 |
|
441-10K |
±10000 |
| 441-15K |
±15000 |
|
441-20K |
±20000 |
1.25
3.18 |
1.50
3.81 |
2.00
5.08 |
6.00
15.24 |
4.875
12.38 |
1.80
4.57 |
0.53
1.35 |
1
1/2 -
12
UNF |
8 |
|
441-30K |
±30000 |
| 441-50K |
±50000 |
|
| General
441 Series Specifications [Top
]
|
|
Full-Scale
Deflection |
0.003
in. |
|
Bridge |
Four-arm
bonded foil gages, 350
Ω nominal |
|
Allowable
Extraneous Forces Without Damage (as % of load capacity) |
|
Bending
Moment
(lb.-in.) |
Shear
(lb.) |
Torque
(lb.-in.) |
Total
Extraneous
Force |
|
5-500
lb. |
40% |
50% |
25% |
100% |
|
1000-7500
lb. |
25% |
30% |
25% |
100% |
|
10000-50000
lb. |
20% |
20% |
15% |
100% |
|
|
Insulation
Resistance |
5000 MΩ at 50 VDC |
|
Excitation |
10
VDC (calibration); up to 15 VDC or AC acceptable |
|
Output
(standard)* |
Models
441-5 through 441-25: 2 mV/V, full scale
Models 441-50 through 441-50K: 3 mV/V, full scale |
|
Resolution |
Infinite |
|
Linearity |
Models
441-5 through 441-25: ±0.2% of full scale
Models 441-50 through 441-50K: ±0.1% of full scale |
|
Hysteresis |
Models
441-5 through 441-25: ±0.1% of full scale
Models 441-50 through 441-50K: ±0.08% of full scale |
|
Repeatability |
Models
441-5 through 441-25: ±0.1% of full scale
Models 441-50 through 441-50K: ±0.03% of full scale |
|
Overload
Capacity |
150%
of nominal rating (static) |
|
Temperature
Coefficient (Zero and Span) |
±0.002%
of full scale/°F |
|
Compensated
Temperature Range |
+60° F to
+160° F (+16°
C to +71° C) |
|
Operating
Temperature Range |
-65° F to
+250° F (-54°
C to +121° C) |
|
*
Optional 0-5 VDC or 4-20 mA output is available (contact
the factory for details). Shunt calibration data is
included with the transducer. Standard calibration is in
tension only. |
|
