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CPA Compression Load Cell

Loadcell CPA

The CPA series of Compression Load Cells are designed for general use and are suitable for use in laboratories or in permanent outdoor installations.

The CPA series are built to exacting standards and are suitable for use in exposed installations, with versions being available for full immersion in water. There are many special options, which have been previously supplied, including, domed top (supplied with or without loading cap), integral carry handles, mounting base integral connectors, and internal analogue/digital signal amplifiers. The standard product is constructed from stainless steel.

The CPA series can be supplied as shown in this datasheet or can be modified to meet a particular application requirement. We are always pleased to discuss any special requirements that can be accommodated. The CPA series can be supplied on it’s own or combined with our extensive range of instrumentation to provide a complete load monitoring system

  • Stainless steel construction
  • Environmentally sealed to IP67
  • Many special design versions available
  • Can be supplied with domed top and spherical loading cap
  • Versions available for use as calibration standards
  • Can be supplied with integral connector

Technical data

Rated load (RL):

2 / 5 / 10 / 25 / 50 / 100 / 200 / 300 / 500 / 750 / 1000 t
(approx. 20 kN to 10 MN)

Proof load:

150 % of RL

Ultimate breaking load:

>300 % of RL

Output

1.5 mV/V at RL (nominal)

Non-linearity:

<±0.25 % of RL (typically)

Repeatability:

<±0.04 % of RL

Supply voltage:

10 VDC recommended, 15 VDC max.

Bridge resistance:

700 Ω (2 to 50 t)
1400 Ω (100 to 1000 t)

Insulation resistance

>500 MΩ at 500 VDC

Operating temperature range:

-20 °C … +70 °C

Compensated temperature range:

-10 °C … +50 °C

Temperature effect zero:

<±0.010 % of RL/K

Temperature effect span:

<±0.010 % of RL/K

Environmental sealing:

IP67

Electrical connection:

5 m 4-core screened PUR cable

Wiring Connections:

red: + supply voltage blue: - supply voltage green: + signal yellow: - signal

Available Options:

Special ranges and sizes available
Special electrical connections
Integral signal conditioning
Submersible versions available
Domed Top/Loading Cap option
Verification Standard versions available
Mounting Base

DimensionsFlat top version (standard)

Model Rated load H ØD ØL T S ØB Weight (kg)

CPA2

2 t

40

31

20

M3

5

20

1

CPA5

5 t

40

31

20

M3

5

20

1

CPA10

10 t

75

50

35

M4

8

34

2,5

CPA25

25 t

75

50

35

M4

8

34

2,5

CPA50

50 t

100

88

70

M4

10

50

6,5

CPA100

100 t

150

100

80

M5

12

70

11

CPA200

200 t

180

125

106

M6

n/a

78

19

CPA300

300 t

185

138

117

n/a

n/a

n/a

21

CPA500

500 t

250

165

150

n/a

n/a

n/a

42

CPA750

750 t

350

198

176

n/a

n/a

n/a

85

CPA1000

1.000 t

400

276

230

n/a

n/a

n/a

220

All dimensions in millimeters

Dimensions of loadcell CPA

DimensionsDomed top version (optional)

Model Rated load H ØD R T S ØB Weight (kg)

CPA2-D

2 t

41

31

29

M3

5

20

1

CPA5-D

5 t

41

31

29

M3

5

20

1

CPA10-D

10 t

75

50

75

M4

8

34

2,5

CPA25-D

25 t

75

50

75

M4

8

34

2,5

CPA50-D

50 t

103

88

158

M4

10

50

6,5

CPA100-D

100 t

153

100

150

M5

12

70

11

CPA200-D

200 t

180

125

100

M6

n/a

78

19

CPA300-D

300 t

185

138

180

n/a

n/a

n/a

21

CPA500-D

500 t

250

165

250

n/a

n/a

n/a

42

CPA750-D

750 t

350

198

350

n/a

n/a

n/a

85

CPA1000-D

1.000 t

400

276

400

n/a

n/a

n/a

220

All dimensions in millimeters

Dimensions of loadcell CPA, domed

DimensionsSpherical lod cap (optional)

Model Rated load H1 H2 ØD1 R1

CPA2

2 t

10

8

31

30

CPA5

5 t

10

8

31

30

CPA10

10 t

15

13

60

76

CPA25

25 t

15

13

60

76

CPA50

50 t

20

16

88

159

CPA100

100 t

30

28

101

151

CPA200

200 t

40

29

125

102

CPA300

300 t

45

38

165

182

CPA500

500 t

50

40

165

260

CPA750

750 t

80

70

198

360

CPA1000

1.000 t

80

70

276

410

All dimensions in millimeters

Dimensions of loadcell CPA, spherical

DimensionsMounting base (optional)

Model Rated load ØB ØC H3 ØM ØP ØQ U

CPA2

2 t

20

40

10

50

3,2

6

4

CPA5

5 t

20

40

10

50

3,2

6

4

CPA10

10 t

34

64

10

80

4,5

10

6

CPA25

25 t

34

64

10

80

4,5

10

6

CPA50

50 t

50

100

10

120

4,5

10

6

CPA100

100 t

70

120

10

140

5,5

11

7

All dimensions in millimeters

Dimensions of mounting plate for loadcell CPA

Drawings are for information only, for construction use ask for detailed CAD-drawing.

Information in the PDF datasheet (see above) may be more detailed. Due to continual product development, ALTHEN and partners reserve the right to vary the foregoing details without prior notice.