Gefran CU Data Sheet
CU
LOAD
INTRODUCTION
DIRECTION
SCREENED CABLE
4 e
quid
istant4 equidistant M5
holes
BALL R 60
COMPACT LOAD CELL
FOR COMPRESSION APPLICATIONS
Main features
• Range of measurement: from 50 to 1.000 kg
•Accuracy class: 0,2%
•All stainless steel construction
•Corrosion resistant
•Grade of protection: IP67 (DIN 40050)
•Compact size
The CU range of load cells are designed for the measurement
of static or dynamic loads in compression.
All the transducers are calibrated as load cells in units of
mass (Kg). The CU series is supplied for nominal loads from
50Kg to 1t. This model has an IP67 protection degree so it
can be used in aggressive atmospheres often found in the
chemical industries. The transducer body is machined from
a single piece of stainless steel with no welding. This means
that it is highly resistant to mechanical shock and vibration.
The compact size means that these cells can be placed in
positions that are difficult to acess and where little space is
available.
TECHNICAL DATA
Accuracy
Nominal full scale load (Ln)
Nominal output at FSO
Output tolerance at Ln
Combined errors: Non linearity
Histeresis, Repeatibility
Creep (after 30 min. at Ln)
Zero load out of balance signal
Thermal drift in Sensitivity
compensated Zero
range Calibration
Nominal input resistance
Nominal output resistance
Isolation resistance
Nominal supply voltage
Maximum supply voltage
Compensated temperature range
Maximum temperature range
Storage temperature range
Permitted static load
Permitted dinamic load
Maximum applicable load
Rupture load
Maximum elastic deformation at Ln
Grade of protection (DIN40050)
Electr. connections screened cable
Elastic element material
0,2%
50...1.000 kg
2mV/V
<± 0,2% FSO
< ± 0,2% FSO
< ± 0,06% FSO
< ± 1% FSO
< ± 0,01% FSO°C
< ± 0,01% FSO°C
-
350 Ohm
350 Ohm
> 10 GOhm
10 V
15 V
-10...+50°C
-20...+60°C
-30...+80°C
130% Ln
100% Ln
150% Ln
> 300% Ln
< 0,2 mm
IP67
4x0,25 / 5 m.
Stainless steel
MECHANICAL DIMENSIONS
Dimensions mm. (± 0,1)
* Recommended torque
** UNI 5931 screws of resistance class 10.9 according to UNI 3740
ELECTRICAL CONNECTIONS
SHUNT BOX
Shield
White
Green
Red
Yellow
ORDER CODE
CABLE EXIT
SIGNAL
SIGNAL
EXCITATION
EXCITATION
SHIELD
Red
Yellow or Black
White
Green
Yellow-Green
4x0.25
Screened cable
* The screen is isolated from the transducer body.
It is recommended that the ground is connected at the
instrument end.
Cells connected in parallel
Red
Yellow or Black
White
Green
Yellow-Green
Load cell CU
MEASUREMENT RANGE (kg)
0 - 50
0 - 100
0 - 200 K2C
0 - 500 K5C
0 - 1000 K1M
If request, it is possible to supply models with non-standard
mechanical and/or electrical
features.
Ex.: CU - K5D
CU load cell, measurement range 0 - 5 0kg.
K5D
K1C
Red
Yellow or Black
White
Green
Yellow-Green
Yellow-Green
Red
Yellow or Black
White
Green
In systems that use several cells, the parallel connection automatically sums the loads on each individual
cell.
Using this method of measurement, the maximum load
will be the sum of the loads on the individual cells and
the sensitivity will be the average value of these cells.
It is important that the user ensures that no cell is stessed beyond its maximum rating under any load condition.
CONVERSION TABLE
Kg
N
Lb
1
0.102
0.454
9.807
1
4.448
2.205
0.225
1
GEFRAN spa reserves the right to make any kind of design or functional modification at any moment without prior notice.
DTS_CU_07-2011_ENG
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