1-channel precise load cell analysis (resistor bridge), 24 bit, with external calibration certificate EL3356-0030
Error Ref.
Self test
Measure
Power LED
Error Diff. 
Self calibration 
Steady state 
Run LED 
Power contact
+UV
Power contact 0 V
+UD
-UD
-Uv
Shield
+UREF
-UREF
+Uv
Shield
Top view 
Contact assembly 
The supply voltage UV has
to be supplied from an
external source, max. 12 V,
e.g. EL9510.
XFC – eXtreme Fast Control
extended shock and vibration range

EL3356-0030 | 1-channel precise load cell analysis (resistor bridge), 24 bit, with external calibration certificate

The analog EL3356-0030 input terminal enables direct connection of a resistor bridge or load cell in a 4- or 6-wire connection technology. The ratio between the bridge voltage UD and the supply voltage UREF is determined simultaneously in the input circuit and the final load value is calculated as a process value on the basis of the settings in the terminal. With automatic self-calibration (can be deactivated), dynamic filters and distributed clock support, the terminal with measuring cycles of 100 µs can be used for fast and precise monitoring of torque or vibration sensors.

For the EL3356-0030, an individual calibration certificate for each terminal is available as an ISO 17025 certificate. The certificate is issued by an accredited service provider in cooperation with Beckhoff.

The calibration certificate for the respective identification number can be downloaded from www.beckhoff.com/certificates.

Technical data EL3356-0030
Number of inputs 2, for 1 resistor bridge in full bridge technology
Technology resistor bridge, strain gauge
Distributed clocks yes
Measuring range UD max. -25…+25 mV rated voltage
Measuring range UREF max. -12…+12 V rated voltage
Internal resistance > 200 kΩ (UREF), > 1 MΩ (UD)
Input filter limit frequency 10 kHz low pass (-3 dB)
Resolution 24 bit, 32 bit presentation
Conversion time 0.1…250 ms, configurable, max. 10,000 samples/s
Conversion rate 10,000…4 samples/s (0.1…250 ms conversion time)
Power supply UV up to 12 V DC from power contacts, dependent on sensor
Measuring error < ±0.01 % for the calculated load value in relation to the final load value with a 12 V feed and 24 mV bridge voltage (hence nominal strain gauge characteristic value of 2 mV/V), self-calibration active, 50 Hz filter active
Calibration certificate externally calibrated
Current consumption power contacts depends on strain gauge supply, min. 1 mA
Current consumption E-bus typ. 280 mA
Supported nominal sensitivity all, parameter resolution: 0.01 µV/V; recommended: 0.5…4 mV/V
Special features self-calibration, quadruple averager, dynamic filters, fast data sampling
Weight approx. 60 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
Protect. class/installation pos. IP 20/variable
Approvals/markings CE, UL, ATEX, IECEx
Ex marking II 3 G Ex nA IIC T4 Gc
Ex nA IIC T4 Gc
Ex tc IIIC T135 °C Dc
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