Ref: DRVL - haute précision

Rotary torque meter 0.02 Nm - 20.000 Nm - Accuracy 0.1%

23 measuring ranges from 0.02 Nm to 20,000 Nm
Maximum speed: 4000 to 37,000 rpm depending on the model
Output signal: ±10 V or Frequency: 10 kHz +- 5kHz
Accuracy: 0.1% (0.05% optional)
Transmission of the rotor/stator measurement signal without contact
Connector output (Connector supplied)
Cylindrical section shaft
Overload protection: 100%
Optional coupling and cable

Introduction

The DRVL series of rotary torque transducers is used for precision torque measurement during rotation. 23 versions are available, allowing torque to be measured over ranges from 0.02Nm to 20,000Nm, at speeds up to 37,000rpm, with an accuracy of 0.1% (0.05% as an option). A speed or angle output can be added as an option, eliminating the need for an additional speed sensor and allowing the actual power to be obtained directly at the shaft. The bandwidth is 0-200 Hz (0-1kHz optional).

The signal transmission between the measuring shaft and the stator is contactless, providing the advantage of optimised service life and minimised measurement noise.

The torquemeter includes amplification electronics, allowing the acquisition of the measurement signal with a simple analogue card (± 10 Vdc). A frequency output (10 KHz ± 5 kHz) is also available, allowing the conditioning stage to be dispensed with. The 12-pin connector includes the power pins (10-28 Vdc) and the various analogue outputs.

Specifications

Common to the range

Output signal	Accuracy	Bandwidth [Hz]	Surcharge max.	Operating temperature	Temperature compensation	Sealing	Power supply
±10V et 10kHz ± 5kHz	±0,1%	0-200Hz	100%	0-60°C	5-45°C	IP40	10-28VDC

Available versions

Model	DRVL	DRVL-I	DRVL-Ib	DRVL-II	DRVL-III	DRVL-IV	DRVL-V	DRVL-VI
Measuring range	0,02 0,05 0,1 Nm	0,05 0,10,2 0,5 1 2 Nm	1-2-5-10 Nm	5-10-20-30-50 Nm	50-100-150-200-300 Nm	500-1000-1300-1500 Nm	2000-3000-4000-5000 Nm	10000-15000-20000 Nm
Speed of rotation	20000 tr/min	37000 tr/min	26000 tr/min	19000 tr/min	13500 tr/min	7900 tr/min	6300 tr/min	4000 tr/min
Bandwidth [Hz]	0-200Hz	0-200Hz	0-200Hz	0-200Hz	0-200Hz	0-200Hz	0-200Hz	0-200Hz
3D model	step	0,05 à 1Nm 2Nm	step	step	step	step	step	step

Installation

The interfaces of the DRVL consist of two smooth shafts. Mounting is usually done by selecting two couplings and/or woodruff. For low torques, the torque meter can be mounted suspended. For higher torques, it is recommended that it be free-standing. The DRVL is supplied with 10-28.8 VDC.

Options and accessories for installation include:

shielded electrical cable, length 2.5, 5 or 10m
shafts with woodruff
couplings
Displays and data acquisition systems can also be supplied as options.

Applications

The DRVL is intended for characterisation and verification measurements on test benches:

power bench
measurement of the efficiency of electric generators
Characterisation of electric motors
Torque measurement on transmission
Torque monitoring
Integration of a low pass filter

rotatif / statique: rotating
Moment capacity: 0 / 0.02 / 20000 Nm
Measuring Range (Torque): 0.01 - 1 Nm, 1 - 10 Nm, 10 - 100 Nm, 100 - 1000 Nm, 1000 - 5000 Nm, 5000 - 20000 Nm
Montage_Capteur: shaft
Max rotation speed: 37000 rpm
Nonlinearity (% FS): ± 0.15 %
Hysteresis: 0.1 % FS
Signal otuput: ± 4 VDC, 4-20 mA, 10 kHz ± 5kHz
Sortie régime: optionel
Tension d'alimentation: 10 Vcc
Connecteur: 12pin-connector
Protection Class: IP40
: speed output, display, high accuracy calibration

Standard version

Version with base plate

Connector pins

	DRVL	DRVL-n	DRVL-w	AK12.3 F	AK12.3 DF
Pin	Signal	Signal	Signal	Color	Color
A	Frequency output	Frequency output	Frequency output	black	black
B	NC	NC	Angle output track B = 90°	red	red
C	Voltage output	Voltage output	Voltage output	brown	brown
D	Output ground	Output ground	Output ground	white	white
E	Power supply ground	Power supply + speed ground	Power supply + angle ground	yellow	yellow
F	Power supply 10-28,8VDC	Power supply 10-28,8VDC	Power supply 10-28,8VDC	purple	pink
G	NC	Speed Output	Angle output track A = 0°	green	green/brown
H	Memory chip * only with ETH Evaluation device	Memory chip * only with ETH Evaluation device	Memory chip * only with ETH Evaluation device	pink	purple
J	Ready output	Ready output	Ready output	grey	green/white
K	Control input	Control input	Control input	grey/pink	grey/pink
L	Frequency output inverted	Frequency output inverted	Frequency output inverted	red/blue	red/blue
M	NC	NC	Voltage reference angle-signal	blue	blue

Options and accessories

measuring ranges

23 extensions as standard, specific extensions on request

Coding

DRVLA-B-C-D-E-F

A: Model size (I, II, III, etc.)
B: Measuring range [Nm]
C: A = Standard, B = speed output, C = angle output
D: accuracy option: 0 = standard, 1 = high accuracy
E: empty or K = keyway option
F: empty or 071 option low pass filter 1 kHz

Cables

Model AK12.3F: 12 wires, shielded, length: 2.5m, 5m or 10m, open-end
Model AK12.3DF: 12 wires, double shielded, length: 2.5m, 5m or 10m, open-end
Model AK12.3: 12 wires, shielded, length: 2.5m, 5m or 10m, connector
Model AK12.3D: 12 wires, double shielded, length: 2.5m, 5m or 10m, connector

Couplings

Model	Description	Couple max.	Manuel
BK2	Single coupling	15 à 1500 Nm	manuel
BKH	Simple, compact	15 à 1500 Nm	manuel
BKE	simple, low-cost, compact	20, 200, 1000 Nm	manuel
BK3	Metal bellows, high clamping force	15 à 10.000 Nm	manuel
BK5			manuel
BKL	simple, economic	2 à 500 Nm	manuel
ROBA-DS		190 à 24.000 Nm	manuel
SK2	torque limiter	1.5 à 1500 Nm	manuel
SK3	torque limiter	5 à 2800 Nm	manuel
SK5		0.1 à 850 Nm	manuel
EK1	elastomer, low-cost, woodruff,	0.5 à 1100 Nm	manuel
EK2	concentricity, easy mounting, vibration absorption	6 à 1100 Nm	manuel
EKH / EKH	Radial mounting	4 à 12500 Nm	manuel
ES2	torque limiter, débrayable	2 à 900 Nm	manuel
EKL	Compact, vibration absorption, simple	0.5 à 1100 Nm	manuel
EK6	Compact, vibration absorption, simple	1950 à 12500 Nm	manuel