Compact Inductive Proximity Sensor GA-311/GH
Cautions For Use
- Never use this product as a sensing device for personnel protection.
- In case of using sensing devices for personnel protection, use products which meet laws and standards, such as OSHA, ANSI or IEC etc., for personnel protection applicable in each region or country.
| ・ |
Always be sure to use sensor heads and amplifiers from the same set. |
| ・ |
Do not shorten or lengthen the sensor head cable. |
Mounting of the sensor head
| How to mount the sensor head |
- The tightening torque should be as given below. Make sure to use a set screw with a cup-point end.
 |
|
| Model No. |
Tightening torque |
A (mm in) |
| GH-2SE |
0.17N·m |
3 0.118 or more |
| GH-3SE |
0.17N·m |
4 0.157 or more |
| GH-5SE |
0.78N·m |
5 0.197 or more |
GH-8SE
GH-F8SE |
0.59N·m |
5 0.197 or more |
|
| Note: |
Do not tighten excessively. |
| Distance from surrounding metal |
- If there is a metal near the sensor head, it may affect the sensing performance.
Keep the minimum distance specified in the table below.
 |
|
| Model No. |
B (mm in) |
| GH-2SE |
3 0.118 |
| GH-3SE |
4 0.157 |
| GH-5SE |
5 0.197 |
GH-8SE
GH-F8SE |
9 0.354 |
|
- When two or more sensors are installed in parallel or face to face, keep the minimum separation distance specified below to avoid mutual interference.
|
<Face to face mounting>
|
<Parallel mounting>
|
|
| Model No. |
C (mm in) |
D (mm in) |
| GH-2SE |
15 0.591 |
10 0.394 |
| GH-3SE |
20 0.787 |
15 0.591 |
| GH-5SE |
25 0.984 |
20 0.787 |
GH-8SE
GH-F8SE |
40 1.575 |
26 1.024 |
|
- The sensing range is specified for the standard sensing object. With a non-ferrous metal, the sensing range is obtained by multiplying with the correction coefficient specified below. Further, the sensing range also changes if the sensing object is smaller than the standard sensing object or if the sensing object is plated.
Correction coefficient
| |
GH-2SE |
GH-3SE |
GH-5SE |
GH-8SE
GH-F8SE |
| Iron |
1 |
1 |
1 |
1 |
| Stainless steel (SUS304) |
0.68 approx. |
0.55 approx. |
0.69 approx. |
0.64 approx. |
| Brass |
0.53 approx. |
0.35 approx. |
0.41 approx. |
0.37 approx. |
| Aluminum |
0.51 approx. |
0.33 approx. |
0.39 approx. |
0.32 approx. |
Others
- Do not use during the initial transient time (0.5 sec.) after the power supply is switched on.
- Do not use the sensor at places having intense vibrations, as this can cause malfunction.
- Make sure that stress by forcible bend or pulling is not applied directly to the cable joint of the sensor head.
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> Cautions For Use
