PCB Load & Torque, Inc.
Toll-Free in USA 866-684-7107
716-684-0001
www.pcbloadtorque.com
GENERAL PURPOSE LOW PROFILE LOAD CELL OPERATION MANUAL
2
1.0 INTRODUCTION
General purpose low profile load cells manufactured by PCB
Load & Torque, Inc. are suitable for a wide range of general
force measurement applications, including weighing,
dynamometer use, and static material test machines. These
load cells are designed for use in compression and tension
loading, while being resistant to extraneous bending and side
loading forces.
In addition to our general purpose load cells, we offer a
complete line of fatigue-rated load cells which are specifically
designed for highly cyclic testing. Applications include
material testing, component life cycle testing, and structural
testing. All fatigue-rated load cells are guaranteed against
fatigue failure for 100 million fully reversed cycles, and are
extremely resistant to extraneous bending and side loading
forces.
The nominal full scale output of the general purpose low
profile load cells is 4.0 mV/V for non-fatigue-rated (1200
series) and 2.0 mV/V for fatigue-rated (1400 series).
The following document explains how to properly install the
low profile load cell, including detailed procedures on
specified torques installation, adapter thread class 3 and
tension pre-load specifications.
2.0 SAFETY PRECAUTIONS
Failure of the load cell structure or fasteners used in the load
cell installation may cause personal injury and equipment
damage.
It is important to provide adequate clearances and safety
guards or shields properly surrounding test fixtures where
fatigue rated load cells are used.
It is important to review the manufactured data when selecting
rod ends and fasteners for load cell installation. Failure might
occur due to combine measurement axis and extraneous loads
if installation specifications are not followed. All test fixtures
designed for use with low profile load cells should be
carefully evaluated for potential failure modes of the fixtures.
It is important to use threaded fasteners properly when
assembling test fixtures used with the load cells. Fixtures with
inadequately designed bolted joints, or improperly tightened
threaded fasteners can fail before the parts under test have
completed the planned fatigue test cycles.
3.0 OVERVIEW
General purpose low profile load cells come in a variety of
capacities to handle loads ranging from 250 lbf to 200,000 lbf.
3.1 Dimensions
The following figure and tables give the general outline
dimensions of the general purpose low profile load cells with
optional tension base.
Model Series
1203/1403
1204/1404
1208/1408
1211/1411
Dimensions
(see Figure 1)
(in)
(mm)
(in)
(mm)
(in)
(mm)
(in)
(mm)
1
2.50
63.5
3.50
88.9
4.50
114.3
6.50
165.1
2
1.37
34.8
1.75
44.5
2.50
63.5
3.50
88.9
3
1.13
28.7
1.75
44.5
2.00
50.8
3.00
76.2
4
1.25
31.8
1.63
41.4
2.25
57.2
3.25
82.6
∅
∅
∅
∅
5
4.12
104.6
6.06
153.9
8.00
203.2
11.00
279.4
R
6
2.54
64.6
3.53
89.7
4.85*
123.2*
6.10*
154.9*
∅
∅
∅
∅
7
3.50
88.9
5.13
130.2
6.50
165.1
9.00
228.6
∅
∅
∅
∅
8
1.25
31.8
2.42
61.4
3.50
88.9
5.38
136.5
∅
∅
∅
∅
9
1.25
31.8
2.25
57.2
3.50
88.9
4.50
114.3
10
45º
30º
22.5º
22.5º
11
0.25
6.4
0.37
9.4
0.48
12.2
0.75
19.1
12
0.03
0.76
0.03
0.76
0.03
0.76
0.03
0.76
13
1/4-28x1 3/4
screw 12 pt.
Qty. 8
3/8-24x2 1/4
screw 12 pt.
Qty. 12
1/2-20x3 1/2
screw 12 pt.
Qty. 16
3/4-16x4 1/2
screw 12 pt.
Qty. 16
14
5/8-18
1 1/4-12
1 3/4-12
2 3/4-8
Thread Depth
0.88
22.4
1.37
34.8
2.12
53.8
2.56
65.0
15
5/8-18
1 1/4-12
1 3/4-12
2 3/4-8
Thread Depth
0.88
22.4
1.37
34.8
1.71
43.4
3.15
80.0
*Indicates dimension with connector protector.
“R6” dimensions given for PT02E-10-6P connector.
Figure 1
- Dimensions
Table 2
– Dimension Values
Dim.
Description
1
Total Height
2
Load Cell Height
3
Tension Base Height
4
Load Cell Body
Height
∅
∅
∅
∅
5
Load Cell Diameter
R
6
Max. Clearance
Radius
∅
∅
∅
∅
7
Bolt Circle Diameter
∅
∅
∅
∅
8
Top Loading Surface
Diameter
∅
∅
∅
∅
9
Bottom Loading
Surface Diameter
10
Angle Between
Screws
11
Screw Head Height
12
Bottom Loading
Surface Height
13
Screw for Tension
Base
14
Load Cell Mounting
Thread
15
Tension Base
Mounting Thread
Table 1
– Dimension
Descriptions
∅
∅
∅
∅
9
15
1
2
3
4
11
∅
∅
∅
∅
5
12
10
R
6
13
14
∅
∅
∅
∅
7
∅
∅
∅
∅
8