Suntest GYFRS Probe

Manufacturer: Suntest Co.,Ltd
Model: GYFRS

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.

GYFRS Probe.

Flange-head Robust type

GYFRS probe is the robust type against vibration and shock. Vibration proof (10G) and shock proof (200G) are available. Between probe and controller, RS-422 differential line driver transmission, providing robustness against electrical noise, is used. In combination with a digital output controller, Min.1μm resolution is possible. A thin type head enabled to miniaturize equipment, and flange installation improved workability compared with a conventional screw.
◆ 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.
DC-Q : MELSEC-Q built-in unit

Specifications

Non-linearity	≦±0.025%FS Typ.
Resolution	( Analogue ) 16bit ( Digital ) Min. 1μm
Repeatablity	≦±0.001%FS
Temp. drift	≦±20ppmFS /°C
Max. Pressure	35MPa ( probe rod )
Operating temp.	-20°C〜+80°C
Storage temp.	-40°C〜+80°C
Vibration	10G ( 40Hz 2mmPP )
Shock	200G ( 2msec )
IP grade	IP67 ( option IP68 )

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.
Resolution depends on associated controller

Model No.

① Effective stroke
15〜3500mm

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
S : 70mm/ 90mm/ 100mm(Std.)

□	tip DZ	magnet	float
70	70mm	M2PN, M3, M11N, BA	F25N, F28N
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
F : flange, rod Φ10 (Std.)

⑤ Associated magnet or float

magnet	float
M2PN :No.2P (Std.) M3　　:No.3 M11N :No.11N T144 :No.T14-M4 T163 :No.T16-M3 BA　:No.2KYN-17-LG	F40S :Φ40 SS316(B) F42S :Φ43 SS316L F50S :Φ50 SS316L F54S :Φ54 SS304 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.

⑥ Cable connection
CN : connector
△G□F :pigtail / cable end : free
△G□A :pigtail / cable end : with connector for relay
△G□FC :pigtail / cable end : with connector for GYFC2/3
( □ :cable length (m)、Max.10m ) (*)
( △ :cable type
S :standard, H:high temp. cable, R:robot cable, UL : cUL cable)

＜Water proof option＞(recommendation : pigtail (WP3G))
WPCN　:submersible connector type
WP3G□F:pigtail / cable end : free
WP3G□A:pigtail / cable end : with connector for relay
WP3G□FC:pigtail / cable end : with connector for GYFC2/3
(□:cable length(m)、Max.10m)(*)

・Page 113 shows the detailed information.
(*) In case of using extension cable
sensor cable (m) + extension cable (m) ≦ 200m
・Please confirm extension cable on page 120〜122.
・Ordering loose mating connector individually.

⑦ Output
00:depends on external controller