Model 311

The electrical force transducers of the model series TesT 311 are primarily used for calibrations of force sensors and materials testing machines. This model has even proved for measurements that require very precise results. The sensors that are made of stainless steel are hermetically sealed and thus are inured to environmental influences. Load transmission parts according to ISO 376 are available for calibration applications.

Up to 50kN the model 311 is used for compressive and tensile forces, from 100kN on it is used as compression force transducer only.

Electrical Force Transducers

• Capacities: 2,5kN to 50kN
• For compression and tension
• From 100kN: compression only
• Highest accuracy
• Reference force transducer
• According to ISO 376
• Calibration version
• Hermetically sealed
• Sensitivity: 2mV/V
• TEDS module available

The electrical force transducers of the model series 311 are primarily used for calibration of force sensors and material testing machines 2) and when highly precise results are required. The devices that are suitable as reference force transducers achieve class 00 according to ISO 376. They are made of stainless steel, are hermetically sealed and thus are inured to environmental influences. For calibration purposes force transmisson parts according to ISO 376 are available. On demand you receive the model 311 also with TEDS module inside the plug. The model 311 is suitable for compressive as well as for tensile forces between the capacities of 2,5kN and 50kN, from 100kN and higher capacities this model is solely used for compression.

Model 311
>> Technical data according to ISO 376, Class 00

• Zero signal when removed S0 mV/V 0,02
• Rated characteristic value Cnom mV/V 2
• Tolerance of characteristic value dC % ≤ ± 0,1
• Combined error Fcomb % ≤ ± 0,0115
• Rated temperature range BT, nom °C -10…+40
• Operating temperature range BT, G °C -20…+50
• Storage temperature range BT, S °C -30…+80
• Temp. coefficient of characteristic value in rated temp. range TKC % / 10K ≤ ± 0,0024
• Temperature coefficient of zero signal in rated temp. range TK0 % / 10K ≤ ± 0,0045
• Input resistance Re Ω 1100 ± 50
• Output resistance Ra Ω 1025 ± 25
• Insulation resistance Ris GΩ > 5
• Max. excitation voltage U V 15
• Rated range of excitation voltage BU, nom V 5 … 15
• Breaking load in reference to nominal load FB % ≥ 150
• Max. permissable dynamic load 3) Ldy % ≤ 50
• Degree of protection acc. to DIN 60529 IP66
• Material Stainless Stee