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ETH / Rotating Torque Sensor DRBK + DRBK-A
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ETH / Rotating Torque Sensor DRBK + DRBK-A

11 torque range from ± 0 – 0,5 Nm to ± 0 – 1000 Nm

  • Low cost.
  • Very short. 
  • Broad input voltage range. 
  • Current output and voltage output. 
  • Optional speed measurement.
  • Measurement accuracy: ≤ 0,5% of full scale.
  • Torque ranges from 0,5 to 1000 Nm.
  • Multipurpose use. 
  • Contactless transfer of measurement signal. 
  • Integrated signal amplifier.
  • Proven strain gage technology. 
  • Single power supply. 
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Rotating Torque Sensor DRBK + DRBK-A

Series DRBK torque transducers are suitable for lab and industrial applications because of their small size and multiple mounting options. As supply voltage and output signal are transmitted without contact, the device can operate continuously with low wear and no maintenance. These transducers are also available with speed measurement for a host of applications. The integrated signal amplifier runs on 11.5 to 30 V DC; it outputs an analog signal of 0 to ± 5 V and a current signal of 10 mA ± 8 mA. Due to its large supply voltage range the transducer can be operated directly from a PLC. The device should be used only with couplings designed specially for it. 
Note: This transducer should only be used in conjunction with the specially developed couplings.
Technical specifications

Supply voltage 11,5 to 28,8 V DC
Power consumption approx. 200 mA
Rise time 10-90% 1 ms
Limit frequency -3dB 1 kHz
Voltage output
    Internal resistance		 0 to ± 5 V
100 Ω
Current output
    Burden		 10 ± 8 mA
max 500 Ω
Ripple < 100 mVss
Nonlinearity < 0,3 %
Hysteresis < 0,3 %
Deviation at zero point ≤ ± 100 mV / ± 200 µA
Max. measuerment fault 0,5 % (FS / of full scale)
Operating temperature 0 – 60 °C
Compensated temperature 5 – 45 °C
Temperature error
    zero point     
    sensitivity		 0,05 % / K
0,02 % / K
Mechanical overload 100 %
Internal protection  IP40
Connection  12pin-connector
EMV Immunity for interference (DIN EN 61326-1 / EN 61000-6 ) *1
Enclosure
HF line interference
150 kHz – 80 MHz (AM) 		 
Severity 3 V 		 
Criterion
A
(ESD) Electrostatic discharge Air 8 kV
Contact 4 kV 		A
A
Enclosure Electromagnetic Field
80 MHz – 1000 MHz (AM)
80 MHz – 2700 MHz (AM) 		 
 
10 V/m
10 V/m 		 
 
A A
Leads – Connection Cable
Burst (fast transients)                                                     2 kV                                       A
Surge voltage (Surge) 1 kV B
Interference Emission (EN 61326-1 / EN 55011)
Disturbance Voltage (Electromagnetic Disturbances) Radiated Emission (Electromagnetic Disruption axis) 		 
–
 
– 		Class B (150 kHz – 30 MHz) Class B (30 MHz – 1000 MHz)

Option speed (n)

Output open-collector
Internal pull up 4,7 kΩ (5 V level)
External pull up 24 V max / 20 mA
Pulses / rev 60

*1 Severity / Criterion: industrial environment; Cable lenght ≤ 30m.
Application not outside buildings.
*2 standard on DRBK-A
*3 by proper external connections til speed max.
Mechanical Dimensions DRBK

Sizes DRBK

Type: 0 I II III
Torque Ranges: (Nm) | 0,5 | 1 | 2 | | 5 | 10 | 20 | | 50 | 100 | 200 | | 500 | 1000 |
Dimensions:        
L (mm) 66 80 90 120
Ø B1 (mm) 45 70 75 105
B2 (mm) 45 53 53 76
H (mm) 56 72 77,5 97,5
H1 ± 0,05 (mm) 18 28 30 40
Ø D g6 (mm) 6 15 24 40
L1 (mm) 42 48 52 65
L2 (mm) 10 15 18 26
A1 (mm) 33 39 42 50
A2 (mm) 20 31 35 55
M M3 x 5 deep M4 x 6 deep M4 x 6 deep M5 x 10 deep
  General tolerances DIN 2768 – m
Weight approx.: (g) 230 550 850 2450
Speed max.: (1/min ) 20000 18000 16000 9000

Mechanical Dimensions DRBK-A

Sizes DRBK-A

Sizes 0 I II III
Torque Ranges (Nm) | 0,5 | 1 | 2 | | 5 | 10 | 20 | | 50 | 100 | 200 | | 500 | 1000 |
Dimensions:        
L (mm) 66 80 90 120
Ø B1 (mm) 45 70 75 105
B2 (mm) 54 53 53 76
H (mm) 90 100 106 122
H1 ± 0,05 (mm) 18 28 30 40
Ø D g6 (mm) 6 15 24 40
L1 (mm) 42 48 52 65
L2 (mm) 10 15 18 26
L3 (mm) 51 48 52 65
A1 (mm) 33 39 42 50
A2 (mm) 20 31 35 55
A3 (mm) 22 – – –
M M3 x 5 deep M4 x 6 deep M4 x 6 deep M5 x 10 deep
  General tolerances DIN 2768 – m
Weight approx. (g) 310 610 910 2530
Speed max. (min-1 ) 20000 18000 16000 9000

Technical Specifications DRBK + DRBK-A

 
Sizes 		Torsion Shaft- Type Measuring Range (Nm) Spring Constant C (Nm/rad) Mass Moment J (g•cm²) Permitted Axial load (N) * Permitted Radial load (N) *
Total Drive Side Measuring Side
 
0 		DRBK-0.5 0,5 144 14,9 14,3 0,6 190 30
DRBK-1 1 144 14,9 14,3 0,6 190 30
DRBK-2 2 287 14,9 14,3 0,6 190 60
 
I 		DRBK-5 5 1100 100 82 18 930 25
DRBK-10 10 2700 100 82 18 930 45
DRBK-20 20 5400 101 82 19 930 90
 
II 		DRBK-50 50 20 x 103 339 233 106 1580 210
DRBK-100 100 36 x 103 347 237 110 1580 420
DRBK-200 200 52 x 103 364 246 118 1580 845
III DRBK-500 500 290 x 103 3265 1794 1471 3920 1420
DRBK-1000 1000 420 x 103 3434 1878 1556 3920 2875

*The values for axial and radial load refer to the non-fixed housing
Features

  • The outputs are short-circuit proof
  • Signal output for „tranducer ready“ 100 mA, level = power supply

Available Accessories
Cables, Analyzers, Couplings
Compatible Couplings
for Size 0    KB2/20-38-6-x for Size I  KB4K/20-39-15-x
for Size II   KB4K/200-60-24-x for Size III KB4K/1000-84-40-x
Ordering Code Coupling
Model/Size – Lenght – ØD1 – ØD2

 

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