Suntest GY Series GYcAT4 Probe

Manufacturer: Suntest Co.,Ltd
Model: GYcAT4

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.

GYcAT4 Probe.

Analogue output
( replacement model for GYLT, GYLS )

Replacement model for GYLS (0〜10V) or GYLT (4〜20mA).
The linearity is changed to 0.05%FS from 0.025%FS, so please be careful.
GYcAT4 doesn’t have alarm output.
Please consider GYcAT (page 16〜17) in a new inquiry.
By the option, it is available with the High speed sampling, and High temperature (rod parts only).

CE marking
Noise cancellation

Specifications

Non-linearity	≦±0.05%FS Typ.
Resolution	≦0.01%FS
Reapeatablity	≦±0.01%FS
Temp. drift	≦±40ppmFS / °C
Voltage output	０〜10V or 10〜0V ( output current :Max.5mA, load :Min.2kΩ )
Current output	4〜20mA or 20〜4mA ( load : Max.500Ω )
Alarm output	not available
Power supply	+24(±2)VDC ( 100mA )
Sampling freq.	Std. 1kHz ( Total rod length : 1300mm )
Max. Pressure	35MPa ( probe rod )
Operating temp.	-20°C〜+80°C
Storage temp.	-40°C〜+80°C
Vibration	6G ( or 40Hz 2mmPP )
Shock	50G ( 2mse )
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.

(*) Sampling freq. is available to Max. 8kHz by option. It depends on the total rod length
(shows in Model ⑧), and the consumption current increases.

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
□:70mm/90mm/100mm (Std.)

□	tip DZ	magnet	float
70	70mm	M2P, M2PN, MG0, M0LM, M0SM, M3, M11, M11N	F25N, F28N
90	90mm		F28S, F30S
100	100mm	T142 (T144), T162 (T163)	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
M2P :No.2P (Std.) M2PN : No.2PN MG0 :No.Φ M0SM :No.ΦSPM M0LM :No.ΦLPM M3 :No.3 M11 :No.11 M11N :No.11N T142 :No.T14-M2 T144 : No.T14-M4 T162 :No.T16-M2 T163 : No.16-M3	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．
For new project, please select from group ”B”.
・ 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
( □ :cable length (m), Max.10m )(*)

(*) In case of using extension cable
Voltage output : sensor cable (m) + extension cable (m) ≦ 10m
Current output : sensor cable (m) + extension cable (m) ≦ 100m
・Please confirm extension cable on page 120〜122.
・Ordering loose mating connector individually.

⑦ Position output
AD :0〜10V ( When magnet moves toward tip, output increase )
AR :10〜0V ( When magnet moves toward tip, output decrease )
BD :4〜20mA ( When magnet moves toward tip, output increase )
BR :20〜4mA ( When magnet moves toward tip, output decrease )
CD□□　:bipolar output (-□V〜+□V)
(for example CD10 :-10V〜+10V )
CR□□:bipolar output (+□V〜-□V)
(for example CR05 :+5V〜-5V )

⑧　Option
blank :without option
H0 :probe rod 100°C
X2 :2kHz sampling ( total rod length : Max.750mm )
X4 :4kHz sampling ( total rod length : Max.450mm )
X8 :8kHz sampling ( total rod length : Max.300mm )
・Please confirm the details of H0 option on page 112.