Suntest
Suntest GY Series GYMRA Probe
Manufacturer: Suntest Co.,Ltd
Model: GYMRA
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.
GYMRA Probe.
Flat head type, analogue output (detachable probe element)
GYMRA probe is the flat head type, analog output sensor which put the thickness of the head part of a GYSE probe in 48.5mm by the latest circuit design.
The output is voltage or current.
With the captive software (GPM), zero and gain adjustment is possible at the user.
The sensor inside element flexible option is available and also most suitable for the exchange when space is small.
- Noise cancellation
GPM setting
Specifications
| Non-linearity | ≦±0.025%FS Typ. |
|---|---|
| Resolution | ≦0.1mm |
| Repeatability | ≦±0.1mm |
| Temp. output | ≦±20ppmFS／°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 | Open drain 50V 0.1A (for magnet missing) |
| Power supply | +24(±2)VDC (60mA) |
| Sampling freg. | Std. 1kHz (up to stroke 1300mm) |
| Max. Pressure | 35MPa (probe rod) |
| Operation temp. | -20°C〜+75°C |
| Storage temp. | -40°C〜+75°C |
| Vibration | 15G (20〜100Hz) |
| 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
15〜7500mm
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
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
Z :EF (flexible element) only (without outer housing)
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 SS316 F50S :Φ50 SS316L F54S :Φ54 SS304 F25N :RF-A10 plastic F28N :RF-A6 plastic |
・Selecting magnet from page and float．
・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
△G□F:pigtail / cable end : free
△G□A:pigtail / cable end : with connector for relay
(□:cable length(m)、Max.10m)(*)
(△:cable type
S:standard, H:high temp. cable, R:robot cable, UL : cUL cable)
(*) 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.
⑦ Position output(OUT1)
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)
V Z/F: option (specified voltage)
(for example V1/5 : 1〜5V, V9.5/0.5 : 9.5〜0.5V)
I Z/F: option (specified current)
(for example I5.2/20 : 5.2〜20mA, I18/5 : 18〜5mA)
【Z=output at zero position, F=output at full position】
⑧ Option
blank : without option
SRT : SRT option
H0 : probe rod 100°C
EF : flexible element (rod Φ10 only)
・Please confirm the details of options on page 112〜114.
・GYMRA standard probe element is detachable though the rod parts is rigid. With EF option, as to accuracy or other specs, please consult our factory.
Dimensions
Probe Dimension
Detachable probe element
Cable
| Wire color | Function |
|---|---|
| red | +24VDC |
| white | 0V |
| blue | Voltage output |
| green | COM1 |
| brown | Current output |
| black | COM2 |
| yellow | Alarm |
- Shield should be connected with 0V at user side.
- In case of selecting voltage output, brown and black wires do not have function.
- In case of selecting current output, blue and green wires do not have function.
