Suntest
Suntest GYcRP Probe

Manufacturer: Suntest Co.,Ltd
Model: GYcRP
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.
GYcRP Probe.
High performance probe

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. SRT option and probe rod 200°C option are available.
◆ 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 (page 60) : MELSEC-Q built-in unit
Specifications
| Non-linearity | ≦±0.05%FS Typ. |
|---|---|
| Resolution | ( Analogue ) ≦0.01%FS ( Digital ) 0.1mm |
| Repeatability | ≦±0.01%FS |
| Temp. drift | ≦±50ppmFS /°C |
| Max. Pressure | 35MPa ( probe rod ) |
| Operating temp. | -20°C〜+80°C |
| Storage temp. | -40°C〜+80°C |
| Vibration | 6G ( 40Hz 2mmPP ) |
| Shock | 100G ( 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
15〜5200mm
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 | M2P, MG0, M11 | F25N, F28N |
| 90 | 90mm | F28S, F30S | |
| 100 | 100mm | T142, T162 | F40S, F42S, F50S, F54S |
□:□mm ( option ) ( specified by customers )
・Possible Min. length depends on the selected magnet or float.
④ Thread / Rod diameter
M :M24xP1.0, rod Φ10 (Std.)
N :M18xP1.5, rod Φ10
U :3/4-16UNF-3A, rod Φ10
M8 :M24xP1.0, rod Φ8
N8 :M18xP1.5, rod Φ8
U8 :3/4-16UNF-3A, rod Φ8
M14 :M24xP1.0, rod Φ13.8
⑤ Associated magnet or float
| magnet | float |
|---|---|
| M2PN :No.2P (Std.) MG0 :No.Φ M11 :No.11 T142 :No.T14-M2 T162 :No.T16-M2 | 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 |
・Please consult if you select a magnet or a float of other than above.
・This Model code means only specifying associated magnet or float.
・When you need a magnet or float, please order separately.
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
・Mating connectors are not included.
If you Mating connectors, please specify separately.
(Straight or L-shaped connectors can be selected.)
⑦ Output
00:depends on external controller
⑧ Option
blank : without option
SRT : SRT option (Recommended: pigtail type)
H0 : High temp. rod (100°C for rod only)
H1E : High temp. rod (120°C for rod only, with heat sink)
H2E : High temp. rod (200°C for rod only, with heat sink)
・Please confirm the details of options on page 112-114.

Dimensions
Probe
Pigtail type
Cable
| Wire color | Pin number | Function |
|---|---|---|
| red | 1 | Sensor power |
| yellow | 2 | Extra power |
| white | 3 | 0V |
| green | 4 | Start(+) |
| black | 5 | Stop(+) |
| blue | 6 | Start(−) |
| brown | 7 | Stop(−) |
- shield should be connected to shield terminal of the controller.











