Accurate and Maintenance-Free, with Built-In Signal Conditioning The DRVL non-contact torque sensor series manufactured by ETH Messtechnik in Germany builds on the existing DRFL series with some significant improvements. Its integral signal conditioner now outputs 2 standard signals of (10V and 10kHz ± 5kHz) with a bandwidth of 200Hz as standard, while a conditioner with a 1kHz bandwidth is optional. The output level for speed and angle signals can now be adjusted from 5V up to 24V making it compatible with PLC acquisition units and many more evaluation devices. Accuracy is guaranteed to <±0.1% of the rated capacity and there are also higher accuracy versions available to <±0.05%. They feature extended surge tests to ensure better electromagnetic compatibility protecting the sensor from unwanted electromagnetic interference and damage. The DRVL series non-contact torque sensors are directly compatible with the established DRFL making installation fast and simple. They can also be supplied with optional base and customised couplings to ensure that you achieve the best possible torque measurement whilst making the task of installation as straightforward as possible.
Technical Specifications
Product Dimensions
Schematic drawing of the DRVL rotary torque transducer.
Model
DRVL
DRVL-I
DRVL-Ib
DRVL-II
DRVL-III
DRVL-IV
DRVL-V
DRVL-VI
Torque
0,02
0,05
2
1
5
50
500
2000
10
Ranges
0,05
0,1
2
10
100
1000
3000
15
(± 0 – … Nm)
0,1
0,2
5
20
150
1300
4000
20
0,5
10
30
200
1500
5000
1
50
300
Dimensions:
(other ranges upon request; General tolerances DIN 2768-m)
L (mm)
82
89
95
110
145
170
270
320
355
B1 (mm)
32
28
36
42
56
88
105
168
H (mm)
47
54
58
58
73
104
121
185
H1 (mm)
14
14
18
21
28
44
52,5
84
H2 (mm)
22
(→ LK)
(→ LK)
(→ LK)
(→ LK)
(→ LK)
(→ LK)
—
Ø D1 g6 (mm)
3
8
8
10
15
26
45
70
110
Ø D2 g6 (mm)
3
5
6
10
15
26
45
70
110
Ø D3-0,1 (mm)
15
27
32
38
54
80
—
—
Ø LK ± 0,1 (mmm)
(→ B1/H2)
32
38
46
65
98
—
—
L1
63
62
68
79
72
84
95
121
L2
7,5
11
14
18
30
45
85
110
115
L3
7,5
10
14
18
30
45
85
110
115
L4
67
66
72
83
78
90
—
—
A1
50
40
56
60
42
46
75
91
A2
24
22
24
32
40
70
85
138
G1
M2,5 x 5 deep
M3 x 5 deep
M3 x 6 deep
M3 x 6 deep
M4 x 8 deep
M6 x 12 deep
M8 x 16 deep
M10 x 16 deep
G2
M2,5 x 5 deep
M3 x 6 deep
M3 x 6 deep
M3 x 6 deep
M4 x 8 deep
M6 x 12 deep
—
—
P (DIN 6885) optional*
—
—
2xA3x3x14
2x A5x5x25
2x A8x7x40
4xA14x9x80
4x A20x12x100
—
Weight (g)
200
170
340
600
1300
4500
11500
33000
Max RPM
20000
37000
26000
19000
13500
7900
6300
4000
*Note: When supplied with this option, DRVL-IV & DRVL-V have 2x keyways at each end of the shaft positioned 180º apart.
Wiring Details – AK12.4 Cable Assembly
Pin
Colour
Designation for DRVL Torque Transducer
A
Green
Torque Output Signal: Frequency 10kHz ±5kHz
B
Red / Blue
Angle Output: Track B = 90°
C
Yellow
Torque Output Signal: ±10Vdc
D
White
Torque Output GND/0V (note: can be connected to supply GND / Pin E)
E
Grey
Supply GND/0V & Angle/Speed Output GND/0V
F
Pink
Supply: +9Vdc to +28Vdc
G
Grey / Pink
Speed/Angle Output: Track A = 0°
H
Purple
Memory Chip (factory use only)
J
Black
Sensor Health Check Signal (factory use only)
K
Red
Control Input (factory use only)
L
Brown
Torque Output Signal: Frequency 10kHz ±5kHz (inverted)
M
Blue
External Voltage Reference Input for Speed/Angle Signal (optional)
