WRG-A
CONTACTLESS MAGNETOSTRICTIVE LINEAR POSITION
TRANSDUCER (ANALOG OUTPUT)
Main characteristics
• Magnetostrictive technology
• Strokes from 50 to 1500 mm
• Optimized mechanical structure
•
Rod, nipple, exagonal flange AISI 316
• Work temperature: -20....+75°C
• Resistance to vibrations (DIN IEC68T2/6 12g)
• Power supply 24Vdc ± 20%
• Protection IP67
• Electromagnetic compatibility EMC 2014/30/EU
• Compliant to the directive RoHS 2011/65/EU
Contactless linear position transducer with magnetostrictive
technology.
The absence of electrical contact on the cursor eliminates all wear
and guarantees almost unlimited life.
The analog interface, available with different voltage ranges or in
current, with direct and reverse output guarantees greater flexibility
of installation and adaptation to pre-existing systems.
High accuracy of the mesurement with reference to the non linearity,
repeatability and hysteresis. High resistance to vibrations, mechanical
shocks for use in a harsh industrial environment.
TECHNICAL DATA
Model from 50 to 1500 mm
Measurements displacement
Position read sampling
time (typical)
Shock test DIN IEC68T2-27 100g - 11ms - single shock
Vibration DIN IEC68T2-6 12g / 10...2000Hz
Displacement speed ≤ 10 m/s
Max. acceleration ≤ 100 m/s
Resolution Infinite
Cursor Floating separate cursor
Working temperature -20....+75°C
Storage temperature -40...+100°C
Coefficient of temperature ≤ 0,01% F.S./°C
Protection IP67
Operative pressure 350 bar (peak max. 500 bar)
From 1 ms to 1.5 ms
(depending on stroke)
2
displacement
ELECTRICAL DATA
Output signal
Nominal power supply 24 Vdc ±20% 24 Vdc ±20%
Max. power ripple 1Vpp 1Vpp
Max. consumption 35mA 70mA
Load on output >= 10kΩ 50... 500Ω
Max. output value 12V 30mA
Alarm output value 10.5V 21mA
Electrical isolation 50V 50V
Protection against polarity
inversion
Protection against overvoltage YES YES
Protection against power supply
on output
ELECTRICAL / MECHANICAL DATA
Model
Sampling time
Dimensions Max.
(A)
Electrical stroke mm Model
Independent
linearity
Repeatibility mm < 0.02
Hysteresis mm < 0.01
50 100 130 150 200 400 450 500 600 700 750 800 900 1250 1500
225 300 1000
ms 1 1,5
mm Model +178.2 Model +183.2
≤ ± 0.04% FS (min ± 0.090 mm)
0....10.V
10....0 V (A)
YES YES
YES YES
20mA ...4mA (E)
4...20mA
MECHANICAL DIMENSIONS
Strokes from 50 to 1000 mm
A
55
Non
active zone
C.E.=Model
Version M
Version I
Strokes from 1250 to 1500 mm
60
Non
active zone
C.E.=Model
Floating magnet
ø10
M18 x 1.5
3/4"-16 UNF-2A
Floating magnet
active zone
A
active zone
50
Non
47.5
50
Non
47.5
ø25
ø25
24.5
73.2 9.5
ø45
Installation surface
73.2 9.5
Thread M4
depth. 6
Version
Version
MOUNTING INSIDE A CYLINDER
55 C.E. 47.5
Non
active zone
ø10
M18 x 1.5
M
3/4"-16 UNF-2A
I
WRG-A-A/B connector output
24.5
12.2
Non
active zone
ø45
Installation surface
ø10
ø12.7
Non-magnetic spacer
Floating magnet
INSTALLATION INSIDE A CYLINDER
6
1
THREAD M18x1,5
The sealing surface must be free from scratches
longitudinal or spiral
Ro 1.6 μm for sealing with NON-pulsating pressure
Ro 0.8 μm for seals with pulsating pressure
Suggested o-ring:
PARKER 6-349 15,4x2,1
Material: Viton 90° Shore-A
Mixes: PARKER N552-90
1
THREAD 3/4”-16UNF
The sealing surface must be free from scratches
longitudinal or spiral
Ro 1.6 μm for sealing with NON-pulsating pressure
Ro 0.8 μm for seals with pulsating pressure
Suggested o-ring:
PARKER 3-908 16,36x2,21
Material: Viton 90° Shore-A
Mixes: PARKER N552-90
ELECTRICAL CONNECTIONS
Function
Output 1 (position)
0...10V
4...20mA
GND Output 1
(0V)
Output 2
(inverse position)
10...0V
20...4mA
GND Output 2
(0V)
Power supply + 5 5
Power supply GND 4 6
n.c. - -
n.c. - -
CONNECTORS
WRG-A-A WRG-A-B
5 pin M12 6 pin M16
1 1
2 2
3 3
2 4
WRG-A-A
41 5
WRG-A-B
45 3
Output
3 2
Output
2 1
GROUNDING WRG-A
Connector ouput WRG-A
Cable shield
ANALOG OUTPUT
0... 10V
10... 0V
4... 20mA
20... 4mA
Metallic connector
(machine ground)
Internal electronic cover
(DC ground, isolated from the machine group)
The signal is proportional to
the position of the magnet
max
0 mm
U/I
Transducer element
(machine ground)
The magnetostrictive transducers
of the WRG-A series supply a direct
and reverse analogue output in
voltage (0....10 / 10....0 Vcc) and
current (4...20 mA / 20...4 mA).
The outputs are direct, no signal
conditioning is required if they
are interfaced with a controller or
measuring instrument.
ORDER CODE
Position transducer
Analog output A
Output Connector
M12 5 pin output connector A
6 pin DIN 45322 output
connector
MODEL
Output
0...10, 10...0 Vcc A
4...20, 20...4 mA E
W R
G A 0 0 0 0 X X X X S 0 X X
Thread
M 18x1.5 (standard) M
3/4” - 16UNF
Included in the supply
B
- Series SK position transducer
- OR 15.4 x 2.1 thread M18 x 1.5 cod: GUA064
- OR 16.36 x 2.21 thread 3/4” -16 UNF cod: GUA065
Magnetic cursors must be ordered separately
Mechanical and/or electrical characteristics differing
from those in the standard version may be arranged
on request.
I
Ex.: WRG-A-B-0400-A-1 0000XXXXS00M0XX
Transducer model WRG, analog output, B connector, model
400mm, 0...10Vdc output , thread M18x1,5
FLOATING CURSOR
Cable camp
Cable camp
P C
U R
Cursors
Cursor Diameter 32.8 095
Cursor Diameter 32.8 with 90° slit 096
Cursor Diameter 25.4 097
Floating cursor for liquids with hole diameter 12 098
The PCUR095 is supplied with:
N° 8 Brass nuts M4
N° 8 Brass washers D4
N° 4 Brass screws M4x25
The PCUR096 is supplied with:
N° 4 Brass nuts M4
N° 4 Brass washers D4
N° 2 Brass screws M4x25
Dimensions A B C D Thickness
PCUR095
32.8 13.5 23.9
-
7.9PCUR096 11
PCUR097 25.4 13.5 -
Model PCUR098
Length A mm 52.4
Diameter B (hole) mm 12
Diameter C mm 44
Material AISI 316
PCUR095 PCUR096
PCUR097 HEIGHT DETECTION POSITION
Note: PCUR098 is supplied with kit PKIT036 for floating cursor
for liquids.
OPTIONAL CONNECTORS (to order separately)
For WRG-A-A, M12 thread connector
CON031 and CON041 for 5 pin output (WRG-A-A)
for ø6.5 cable
Cable camp
for ø6 - ø8 cable
CON031
IP67 - IEC 48B
CON041
IP67
For WRG-A-B, M16 thread connector
CON021, CON022 and CON023 for 6 pin output (WRG-A-B)
for ø5 cable
CON021
IP40 - EMC
OPTIONAL OUTPUT CABLES (to order separately)
Cable camp
ø6 - ø8
cable
for
CON022
IP67 - EMC
Cable camp
ø5 - ø8
for
cable
CON023
IP67 - EMC
For WRG-A-A, cable with connector (straight or 90°) with M12
thread 5 pin
CODE
Lenght “L”
Straight cable Cable to 90°
2 mt CAV011 CAV021
5 mt CAV012 CAV022
10 mt CAV013 CAV023
15 mt CAV015 CAV024
ACCESSORIES (to order separately)
Non-magnetic spacer for mounting PCUR022 cursor CUR022
Sensors are manufactured in compliance with:
- EMC 2014/30/EU compatibility directive
- RoHS 2011/65/EU
GEFRAN spa reserved the right to make aesthetic or functional changes at any time and without notice.
DTS_WRG-A_01-2019_ENG
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