GA-311 Proximity Sensors Specifications
Specifications for this product appear below.
Sensor heads
| Type | Cylindrical type | |||||
|---|---|---|---|---|---|---|
| Spatter- resistant type |
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| Model No. | GH-2SE | GH-3SE | GH-5SE | GH-8SE | GH-F8SE | |
| Applicable amplifier | GA-311 | |||||
| Stable sensing range (Note 2) |
0 to 0.6 mm 0 to 0.024 in |
0 to 0.8 mm 0 to 0.031 in |
0 to 1.0 mm 0 to 0.039 in |
0 to 2.0 mm 0 to 0.079 in |
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| Max. operation distance (Note 2) |
1.2 mm 0.047 in |
1.8 mm 0.071 in |
2.4 mm 0.094 in |
4.0 mm 0.157 in |
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| Standard sensing object | Iron sheet 5 x 5 x t 1 mm 0.197 x 0.197 x t 0.039 in |
Iron sheet 10 x 10 x t 1 mm 0.394 x 0.394 x t 0.039 in | ||||
| Hysteresis (Note 3) | 0.07 mm 0.003 in or less |
0.05 mm 0.002 in or less |
0.04 mm 0.002 in or less |
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| Repeatability (Note 3) | Along sensing axis, perpendicular to sensing axis: 1 μm 0.039 mil or less | |||||
| Protection | IP50 (IEC) | IP67 (IEC), IP67g (JEM) | ||||
| Ambient temperature | -10 to +60 ℃ 14 to +140 ℉, Storage: -20 to +70 ℃ -4 to +158 ℉ | |||||
| Ambient humidity | 35 to 85 % RH, Storage: 35 to 85 % RH | |||||
| Vibration resistance | 10 to 55 Hz frequency, 1.5 mm 0.059 in amplitude in X, Y and Z directions for two hours each | |||||
| Shock resistance | 500 m/s2 acceleration (50 G approx.) in X, Y and Z directions for five times each | |||||
| Temperature characteristics (Note 4) | Within ±7 % | Within ±5 % | Within ±4 % | |||
| Material | Enclosure: Stainless steel (SUS303) Sensing part: PVC |
Enclosure: Stainless steel (SUS303) Sensing part: ABS |
Enclosure: Stainless steel (SUS303) Sensing part: PAR |
Enclosure: Stainless steel (SUS303) Sensing part: ABS |
Enclosure: Stainless steel (SUS303) Sensing part: Fluorine resin |
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| Cable (Note 5) | Oil-resistant [Spatter-resistant type: Spatter-resistant cable (Sheath: Fluorine resin)] high-frequency coaxial cable, 3 m 9.843 ft long, with a connector at the end |
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| Weight | Net weight: 15 g approx. Gross weight: 30 g approx. |
Net weight: 35 g approx. Gross weight: 45 g approx. |
Net weight: 40 g approx. Gross weight: 55 g approx. |
Net weight: 55 g approx. Gross weight: 70 g approx. |
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Notes:
1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 ℃ +73.4 ℉.
2) The stable sensing range represents the sensing range for which the sensor can satisfy all the given specifications with the standard sensing object. The maximum operation distance represents the maximum distance for which the sensor can detect the standard sensing object at +20 ℃ +68 ℉ constant ambient temperature.
Usage within the stable sensing range is recommended for accurate sensing applications.
3) The hysteresis and the repeatability are specified for the standard sensing object within the stable sensing range.
4) The value represents the variation in the operation distance, that has been set within the stable sensing range at +20 ℃ +68 ℉, for an ambient temperature drift from 0 to +55 ℃ +32 to +131 ℉. (Values are for sensor head only.)
5) The length of the sensor head cable cannot be changed.
Amplifier
| Model No. | GA-311 | |
|---|---|---|
| Applicable sensor head | GH-□SE | |
| Supply voltage | 12 to 24 V DC ± 10 % Ripple P-P 10 % or less | |
| Current consumption | 25 mA or less | |
| Output | NPN open-collector transistor ・Maximum sink current: 100 mA (50 mA, if five, or more, amplifiers are connected in cascade.) ・Applied voltage: 30 V DC or less (between sensing output and 0 V) ・Residual voltage: 1 V or less [at 100 mA (at 50 mA, if five, or more, amplifiers are connected in cascade) sink current.] |
|
| Output operation | Switchable either Normally open or Normally closed | |
| Short-circuit protection | Incorporated | |
| Max. response frequency | 3.3 kHz | |
| Operation indicator | Orange LED (lights up when the output is ON) | |
| Disconnection alarm indicator | Red LED (lights up when the sensor head cable is disconnected or misconnected) | |
| Sensitivity adjuster | 18-turn potentiometer | |
| Ambient temperature | -10 to +60 ℃ +14 to +140 ℉ (If 4 to 7 units are connected in cascade : -10 to +50 ℃ +14 to +122 ℉, if 8 to 16 units are connected in cascade: -10 to +45 ℃ +14 to +113 ℉) (No dew condensation or icing allowed), Storage: -20 to +70 ℃ -4 to +158 ℉ |
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| Ambient humidity | 35 to 85 % RH, Storage: 35 to 85 % RH | |
| Voltage withstandability | 1,000 V AC for one min. between all supply terminals connected together and enclosure | |
| Insulation resistance | 20 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure | |
| Vibration resistance | 10 to 150 Hz frequency, 0.75 mm 0.030 in amplitude in X, Y and Z directions for two hours each | |
| Shock resistance | 100 m/s2 acceleration (10 G approx.) in X, Y and Z directions for three times each | |
| Temperature characteristics (Note 2) | Within ±5 % | |
| Material | Enclosure: Heat-resistant ABS, Cover: Polycarbonate | |
| Connecting method | Connector (Note 3) | |
| Cable length | Total length up to 100 m 328.084 ft (if 5 to 8 units are connected in cascade: 50 m 164.042 ft, if 9 to 16 units are connected in cascade: 20 m 65.617 ft) is possible with 0.3 mm2, or more, cable. |
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| Weight | Net weight: 15 g approx., Gross weight: 40 g approx. | |
Notes:
1) Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 ℃ +73.4 ℉.
2) The value of the temperature characteristics gives the variation in the operation distance, that has been set within the stable sensing range at +20 ℃ +68 ℉, for an ambient temperature drift from 0 to +55 ℃ +32 to +131 ℉. (Value is for amplifier only.)
3) The cable for amplifier connection is not supplied as an accessory. Make sure to use the optional quick-connection cable given below.
Main cable (3-core): CN-73-C1 (cable length 1 m 3.281 ft), CN-73-C2 (cable length 2 m 6.562 ft), CN-73-C5 (cable length 5 m 16.404 ft)
Sub cable (1-core): CN-71-C1 (cable length 1 m 3.281 ft), CN-71-C2 (cable length 2 m 6.562 ft), CN-71-C5 (cable length 5 m 16.404 ft)
