Suntest GY Series GYMS Probe

Manufacturer: Suntest Co.,Ltd
Model: GYMS

Magnetostrictive Displaiacement Transducer

Model GY Series are “Displacement Transducers” employing magnetostrictive phenomena, especially the Wiedemann effect. An ultra-sonic wave is generated by a moving magnet operating near a magnetostrictive wave guide on which the sonic wave propagates up to the head of the transducer.
The propagation time is precisely measured by state of the art technology and then the absolute displacement transducer is operational.

[ Principle ]

The figure shows the fundamental principle of operation.
When a current pulse like A is given to the wave guide, it generates a circumferential magnetic field on the wave guide, then placement of the movable magnet (polarized axially) as shown, only the axial magnetic field of the magnet affecting the wave guide produces a resultant field as indicated by the dotted line.
The vector combination of these two fields produces torsional strain, a phenomenon known as the Wiedemann Effect.
It is a form of vibration and propagates along the wave guide in the form of a transverse ultra-sonic wave.
The GY series displacement transducers detect the propagation time of the ultra-sonic wave..

GYMS Probe.

Compact

The design of GYMS makes the sensor head compact.
Its linearity is ≦±0.025%FS and its protection is IP67.

◆Associated controller
・Analogue output:GYHC
・Digital output:GYDC-S1, GYDC-05
・IRDS-GY : When using the IRDM, you can connect with
CC-Link, CC-Link IE Field, PROFIBUS, EtherNet/IP, and EtherCAT.

Specifications

Non-linearity	≦±0.025%FS Typ.
Resolution	( analogue ) ≦0.01%FS ( digital ) 0.1mm
Repeatability	≦±0.01%FS
Temp. drift	≦±40ppmFS/°C
Max. Pressure	35MPa ( probe rod )
Operating temp.	-20°C〜+80°C
Storage temp.	-40°C〜+80°C
Vibration	6G ( or 40Hz 2mmPP )
Shock	50G ( 2msec )
IP grade	IP67

The above mentioned accuracy applies to sensors with an effective stroke of 300mm or more.
The specification of stroke less than 300mm is equal that of stroke 300mm.

Model No.

① Effective stroke
15〜3000mm

② Head dead zone
50: 50mm (Std.)
□: □mm ( option ) ( specified by customers )
・Possible Min. length depends on the selected magnet or float.

③ Tip dead zone
□: 70mm/ 90mm/ 100mm (Std.)

□	tip DZ	magnet	float
70	70mm	M2PN, M0SM, M0LM, M3, M11N, BA	F25N, F28N
90	90mm		F28S, F30S
100	100mm	T144, T163	F40S ,F42S, F50S, F54S

□ : □mm (option)(specified by customers)
・Possible Min. length depends on the selected magnet or float.④ Thread / Rod diameter
J8 : M20xP1.0, rod Φ8(Std.)
L8 : M16xP2.0, rod Φ8
E8 : M20xP1.5, rod Φ8
N　: M18xP1.5, rod Φ10
U　: 3/4-16UNF-3A, rod Φ10
K6 : M16xP1.5, rod Φ6

・In case of an effective stroke 1001mm or more, the rod Φ10 should be used.

⑤ Associated magnet or float

magnet	float
M2PN :No.2PN (Std.) M0SM :No.ΦSPM M0LM :No.ΦLPM M3 :No.3 M11N :No.11N T144 :No.T14-M4 T163 :No.T16-M3 BA : No.2KYN-17-LG	F28S:Φ28 SS316L F30S :Φ30 SS316L F40S :Φ40 SS316(B) F42S :Φ43 SS316L F50S :Φ50 SS316L F54S :Φ54 SS304 F25N :RF-A10 plastic F28N :RF-A6 plastic

・Selecting magnet from page 116〜118(GG)．
・Please consult our factory in case of requesting special magnet or float.
・This model code means only specifying associated magnet or float.
・Ordering magnet or float individually.
・In case of an effective stroke 2001mm or more, “No.2KYN-17-LG”
magnet (page 116) would be recommended.

⑥ Cable connection
G□F: pigtail / cable end : free
G□A: pigtail / cable end : with connector for relay
(□: cable length(m)、Max.10m) (*)
CN: connector
(*) In case of using extension cable
sensor cable (m) + extension cable (m) ≦ 100m
・Please confirm extension cable on page 120〜122.
・Ordering loose mating connector individually.

⑦ Output
00 :depends on external controller (total rod length : ≦1400mm)
24 :depends on external controller (total rod length : ≧1401mm)