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Panasonic Industry / Automation Controls

Cylindrical Inductive Proximity Sensor GX-U/GX-FU/GX-N (Discontinued Products)

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  • Discontinued Products

  • Specifications

  • Dimensions

  • Circuit/ Wiring

  • Sensing characteristics

  • Cautions For Use

Ⅾiscontinued

Last time buy (JST)

September 30, 2022

We are sorry, the products have been discontinued. 
Please refer to the details of the discontinued products and the recommended substitutes list below.

------------------------------ Tab1 showing ------------------------------

Discontinued Products

------------------------------ Tab2 showing ------------------------------

Specifications

DC 2-wire type

TypeShielded type
Non-threaded typeThreaded type
Model No.Normally openGX-5SUGX-8MUGX-12MUGX-18MUGX-30MU
Normally closedGX-5SUBGX-8MUBGX-12MUBGX-18MUBGX-30MUB
Max. operation distance
(Note 2)		1.5 mm
0.059 in
± 10 %		2 mm
0.079 in
± 10 %		3 mm
0.118 in
± 10 %		7 mm
0.276 in
± 10 %		10 mm
0.394 in
± 10 %
Stable sensing range
(Note 2)		0 to 1.2 mm
0 to 0.047 in		0 to 1.6 mm
0 to 0.063 in		0 to 2.4 mm
0 to 0.094 in		0 to 5.6 mm
0 to 0.220 in		0 to 8 mm
0 to 0.315 in
Standard sensing objectIron sheet
6 x 6 x t 1 mm
0.236 x 0.236 x t 0.039 in		Iron sheet
8 x 8 x t 1 mm
0.315 x 0.315 x t 0.039 in		Iron sheet
12 x 12 x t 1 mm
0.472 x 0.472 x t 0.039 in		Iron sheet
18 x 18 x t 1mm
0.709 x 0.709 x t 0.0 39 in		Iron sheet
30 x 30 x t 1 mm
1.181 x 1.181 x t 0.039 in
Hysteresis20 % or less of operation distance
(with standard sensing object)
Supply voltage12 to 24 V DC +10/-15 % Ripple P-P 10 % or less
Current consumption
(Note 3)		0.8 mA or less
OutputNon-contact DC 2-wire type
- Load current: 3 to 70 mA (Note 4)
- Residual voltage: 3 V or less (Note 5)
 Short-circuit protectionIncorporated
Max. response frequency1.7 kHz1.2 kHz1.2 kHz500 Hz350 Hz
Operation indicatorNormally closed type: Orange LED
(lights up when the output is ON)
2-color indicatorNormally open type: Lights up in green under stable sensing condition, lights up in orange under unstable sensing condition
ProtectionIP67 (IEC), IP67G (Note 6)
Ambient temperature-25 to +70 ℃ -13 to +158 ℉, Storage: -30 to +80 ℃ -22 to +176 ℉
Ambient humidity45 to 85 % RH, Storage: 35 to 95 % RH
Voltage withstandability1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance50 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure
Vibration resistance10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each
Shock resistance1,000 m/s2 acceleration (100 G approx.) in X, Y and Z directions three times each
Sensing
range
variation		Temperature characteristicsOver ambient temperature range -25 to +70 ℃ -13 to +158 ℉
: within ±10 % of sensing range at +20 ℃ +68 ℉
Voltage characteristicsWithin ±2 % for ±10 % fluctuation of the supply voltage
MaterialEnclosure: Brass (Nickel plated) [Stainless steel (SUS303) for GX-5SU(B), GX-8MU(B) and GX-8MLU(B)]
Sensing part: Nylon [Polyarylate for GX-5SU(B)], Indicator part: Nylon [excluding GX-5SU(B)]
Cable0.3 mm2 [0.15 mm2 for GX-5SU(B), GX-8MU(B) and GX-8MLU(B)] 2-core oil, heat and cold resistant cabtyre cable, 2 m 6.562 ft long
Cable extensionExtension up to total 50 m 164.042 ft is possible with 0.3 mm2, or more, cable.
Weight (Note 7)Net weight:
20 g approx.		Net weight:
30g approx.		Net weight:
55g approx.		Net weight:
95g approx.		Net weight:
220g approx.
Accessories-Nut: 2 pcs., Toothed lock washer: 1 pc.
TypeNon-shielded type
Threaded type
Model No.Normally openGX-8MLUGX-12MLUGX-18MLUGX-30MLU
Normally closedGX-8MLUBGX-12MLUBGX-18MLUBGX-30MLUB
Max. operation distance
(Note 2)		4 mm
0.157 in
± 10 %		8 mm
0.315 in
± 10 %		15 mm
0.591 in
± 10 %		22 mm
0.866 in
± 10 %
Stable sensing range
(Note 2)		0 to 3.2 mm
0 to 0.126 in		0 to 6.4 mm
0 to 0.252 in		0 to 12 mm
0 to 0.472 in		0 to 17.6 mm
0 to 0.693 in
Standard sensing objectIron sheet
20 x 20 x t 1 mm
0.787 x 0.787 x t 0.039 in		Iron sheet
30 x 30 x t 1 mm
1.181 x1.181 x t 0.039 in		Iron sheet
50 x 50 x t 1 mm
1.969 x 1.969 x t 0.039 in		Iron sheet
70 x 70 x t 1 mm
2.756 x 2.756 x t 0.039 in
Hysteresis20 % or less of operation distance
(with standard sensing object)
Supply voltage12 to 24 V DC +10 /-15 % Ripple P-P 10 % or less
Current consumption
(Note 3)		0.8 mA or less
OutputNon-contact DC 2-wire type
- Load current: 3 to 70 mA (Note 4)
- Residual voltage: 3 V or less (Note 5)
 Short-circuit protection0.8 mA or less
Max. response frequency1 kHz650 Hz350 Hz220 Hz
Operation indicatorNormally closed type: Orange LED
(lights up when the output is ON)
2-color indicatorNormally open type: Lights up in green under stable sensing condition, lights up in orange under unstable sensing condition
ProtectionIP67 (IEC), IP67G (Note 6)
Ambient temperature-25 to +70 ℃ -13 to +158 ℉, Storage: -30 to +80 ℃ -22 to +176 ℉
Ambient humidity45 to 85 % RH, Storage: 35 to 95 % RH
Voltage withstandability1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance50 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure
Vibration resistance10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each
Shock resistance1,000 m/s2 acceleration (100 G approx.) in X, Y and Z directions three times each
Sensing
range
variation		Temperature characteristicsOver ambient temperature range -25 to +70 ℃ -13 to +158 ℉: within ±10 % of sensing range at +20 ℃ +68 ℉
Voltage characteristicsWithin ±2 % for ±10 % fluctuation of the supply voltage
MaterialEnclosure: Brass (Nickel plated) [Stainless steel (SUS303) for GX-5SU(B), GX-8MU(B) and GX-8MLU(B)]
Sensing part: Nylon [Polyarylate for GX-5SU(B)], Indicator part: Nylon [excluding GX-5SU(B)]
Cable0.3 mm2 [0.15 mm2 for GX-5SU(B), GX-8MU(B) and GX-8MLU(B)] 2-core oil, heat and cold resistant cabtyre cable, 2 m 6.562 ft long
Cable extensionExtension up to total 50 m 164.042 ft is possible with 0.3 mm2, or more, cable.
Weight (Note 7)Net weight:
30g approx.		Net weight:
55g approx.		Net weight:
95g approx.		Net weight:
220g approx.
AccessoriesNut: 2 pcs., Toothed lock washer: 1 pc.

Note 1 : Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 ℃ +73.4 ℉.

Note 2 : The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient temperature drift and/or supply voltage fluctuation.

Note 3 : It is the leakage current when the output is in the OFF state.

Note 4 : The maximum load current varies depending on the ambient temperature.

Note 5 : When the cable is extended, the residual voltage becomes larger.

Note 6 : If using the sensor in an environment where cutting oil droplets splatter, the sensor may be deteriorated due to added substances in the oil.
Please check the resistivity of the sensor against the cutting oil you are using beforehand.

Note 7 : The weight of the threaded type includes the weight of two nuts and one toothed lock washer.

Spatter-resistant of DC 2-wire type (Pigtailed type)

TypeShielded type
Threaded type
Model No.GX-F12MU-JGX-F18MU-JGX-F30MU-J
Max. operation distance
(Note 2)		3 mm
0.118 in
± 10 %		7 mm
0.276 in
± 10 %		10 mm
0.394 in
± 10 %
Stable sensing range
(Note 2)		0 to 2.4 mm
0 to 0.094 in		0 to 5.6 mm
0 to 0.220 in		0 to 8 mm
0 to 0.315 in
Standard sensing objectIron sheet
12 x 12 x t 1 mm 0.472 x 0.472 x t 0.039 in		Iron sheet
18 x 18 x t 1 mm 0.709 x 0.709 x t 0.039 in		Iron sheet
30 x 30 x t 1 mm 1.181 x1.181 x t 0.039 in
Hysteresis20 % or less of operation distance
(with standard sensing object)
Supply voltage12 to 24 V DC +10/-15 % Ripple P-P 10 % or less
Current consumption
(Note 3)		0.8 mA or less
OutputNon-contact DC 2-wire type
- Load current: 3 to 70 mA (Note 4)
- Residual voltage: 3 V or less (Note 5)
 Output operationNormally open
Short-circuit protectionIncorporated
Max. response frequency1.2 kHz500 Hz350 Hz
2-color indicatorLights up in green under stable sensing condition,
lights up in orange under unstable sensing condition
ProtectionIP67 (IEC), IP67G (Note 6)
Ambient temperature-25 to +70 ℃ -13 to +158 ℉,
Storage: -30 to +80 ℃ -22 to +176 ℉
Ambient humidity45 to 85 % RH, Storage: 35 to 95 % RH
Voltage withstandability1,000 V AC for one min.
between all supply terminals connected together and enclosure
Insulation resistance50 MΩ, or more, with 250 V DC megger
between all supply terminals connected together and enclosure
Vibration resistance10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X,
Y and Z directions for two hours each
Shock resistance1,000 m/s2 acceleration (100 G approx.) in X,
Y and Z directions three times each
Sensing
range
variation		Temperature characteristicsOver ambient temperature range -25 to +70 ℃ -13 to +158 ℉
: within ±10 % of sensing range at +20 ℃ +68 ℉
Voltage characteristicsWithin ±2 % for ±10 % fluctuation of the supply voltage
MaterialEnclosure: Brass (Fluorine resin coated),
Sensing part : Polyarylate (Fluorine resin coated),
Indicator part: Polyarylate
Cable0.3 mm2 2-core spatter-resistant cable,
0.3 m 0.984 ft long with round type connector
Cable extensionExtension up to total 50 m 164.042 ft is possible with 0.3 mm2, or more, cable.
Weight (Note 7)Net weight: 35 g approx.Net weight: 75g approx.Net weight: 200g approx.
AccessoriesNut: 2 pcs. (Fluorine resin coated),
Toothed lock washer: 1 pc. (Fluorine resin coated)

Note 1 : Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 ℃ +73.4 ℉.

Note 2 : The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient temperature drift and/or supply voltage fluctuation.

Note 3 : It is the leakage current when the output is in the OFF state.

Note 4 : The maximum load current varies depending on the ambient temperature.

Note 5 : When the cable is extended, the residual voltage becomes larger.

Note 6 : If using the sensor in an environment where cutting oil droplets splatter, the sensor may be deteriorated due to added substances in the oil.
Please check the resistivity of the sensor against the cutting oil you are using beforehand.

Note 7 : The given weight includes the weight of two nuts and one toothed lock washer.

DC 3-wire type

TypeShielded type
Threaded type
Model No.GX-N12MGX-N12MBGX-N18MGX-N18MBGX-N30MGX-N30MB
Max. operation distance
(Note 2)		3 mm
0.118 in
± 10 %		7 mm
0.276 in
± 10 %		10 mm
0.394 in
± 10 %
Stable sensing range
(Note 2)		0 to 2.4 mm
0 to 0.094 in		0 to 5.6 mm
0 to 0.220 in		0 to 8 mm
0 to 0.315 in
Standard sensing objectIron sheet
12 x 12 x t 1 mm
0.472 x 0.472 x t 0.039 in		Iron sheet
18 x 18 x t 1 mm
0.709 x 0.709 x t 0.039 in		Iron sheet
30 x 30 x t 1 mm
1.181 x1.181 x t 0.039 in
Hysteresis20 % or less of operation distance
(with standard sensing object)
Supply voltage12 to 24 V DC +10 /-15 % Ripple P-P 10 % or less
Current consumption10 mA or less
OutputNPN open-collector transistor
- Maximum sink current: 100 mA
- Applied voltage: 30 V DC or less (between output and 0 V)
- Residual voltage: 1.5 V or less (at 100 mA sink current)
0.4 V or less (at 16 mA sink current)
 Output operationNormally openNormally closedNormally openNormally closedNormally openNormally closed
Short-circuit protectionIncorporated
Max. response frequency450 Hz300 Hz300 Hz
Operation indicatorOrange LED
(lights up when the output is ON)
ProtectionIP67 (IEC), IP67G (Note 3)
Ambient temperature-25 to +70 ℃ -13 to +158 ℉,
Storage: -30 to +80 ℃ -22 to +176 ℉
Ambient humidity45 to 85 % RH, Storage: 35 to 95 % RH
Voltage withstandability1,000 V AC for one min.
between all supply terminals connected together and enclosure
Insulation resistance50 MΩ, or more, with 250 V DC megger
between all supply terminals connected together and enclosure
Vibration resistance10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each
Shock resistance1,000 m/s2 acceleration (100 G approx.) in X, Y and Z directions three times each
Sensing
range
variation		Temperature characteristicsOver ambient temperature range -25 to +70 ℃ -13 to +158 ℉
: within ±10 % of sensing range at +20 ℃ +68 ℉
Voltage characteristicsWithin ±2 % for ±10 % fluctuation of the supply voltage
MaterialEnclosure: Brass (Nickel plated), Sensing part: Nylon, Indicator part: Nylon
Cable0.3 mm2 3-core oil, heat and cold resistant cabtyre cable, 2 m 6.562 ft long
Cable extensionExtension up to total 100 m 328.084 ft is possible with 0.3 mm2, or more, cable.
Weight (Note 4)Net weight:
65 g approx.		Net weight:
110 g approx.		Net weight:
240 g approx.
AccessoriesNut: 2 pcs., Toothed lock washer: 1 pc.
TypeNon-shielded type
Threaded type
Model No.GX-N12MLGX-N12MLBGX-N18MLGX-N18MLBGX-N30MLGX-N30MLB
Max. operation distance
(Note 2)		8 mm
0.315 in
± 10 %		15 mm
0.591 in
± 10 %		22 mm
0.866 in
± 10 %
Stable sensing range
(Note 2)		0 to 6.4 mm
0 to 0.252 in		0 to 12 mm
0 to 0.472 in		0 to 17.6 mm
0 to 0.693 in
Standard sensing objectIron sheet
30 x 30 x t 1 mm
1.181 x1.181 x t 0.039 in		Iron sheet
50 x 50 x t 1 mm
1.969 x 1.969 x t 0.039 in		Iron sheet
70 x 70 x t 1 mm
2.756 x 2.756 x t 0.039 in
Hysteresis20 % or less of operation distance
(with standard sensing object)
Supply voltage12 to 24 V DC +10 /-15 % Ripple P-P 10 % or less
Current consumption10 mA or less
OutputNPN open-collector transistor
- Maximum sink current: 100 mA
- Applied voltage: 30 V DC or less (between output and 0 V)
- Residual voltage: 1.5 V or less (at 100 mA sink current)
0.4 V or less (at 16 mA sink current)
 Output operationNormally openNormally closedNormally openNormally closedNormally openNormally closed
Short-circuit protectionIncorporated
Max. response frequency350 Hz100 Hz100 Hz
Operation indicatorOrange LED
(lights up when the output is ON)
ProtectionIP67 (IEC), IP67G (Note 3)
Ambient temperature-25 to +70 ℃ -13 to +158 ℉,
Storage: -30 to +80 ℃ -22 to +176 ℉
Ambient humidity45 to 85 % RH, Storage: 35 to 95 % RH
Voltage withstandability1,000 V AC for one min.
between all supply terminals connected together and enclosure
Insulation resistance50 MΩ, or more, with 250 V DC megger
between all supply terminals connected together and enclosure
Vibration resistance10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each
Shock resistance1,000 m/s2 acceleration (100 G approx.) in X, Y and Z directions three times each
Sensing
range
variation		Temperature characteristicsOver ambient temperature range -25 to +70 ℃ -13 to +158 ℉
: within ±10 % of sensing range at +20 ℃ +68 ℉
Voltage characteristicsWithin ±2 % for ±10 % fluctuation of the supply voltage
MaterialEnclosure: Brass (Nickel plated), Sensing part: Nylon, Indicator part: Nylon
Cable0.3 mm2 3-core oil, heat and cold resistant cabtyre cable,
2 m 6.562 ft long
Cable extensionExtension up to total 100 m 328.084 ft is possible with 0.3 mm2, or more, cable.
Weight (Note 4)Net weight:
65 g approx.		Net weight:
110 g approx.		Net weight:
240 g approx.
AccessoriesNut: 2 pcs., Toothed lock washer: 1 pc.

Note 1 : Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 ℃ +73.4 ℉.

Note 2 : The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object.
The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient temperature drift and/or supply voltage fluctuation.

Note 3 : If using the sensor in an environment where cutting oil droplets splatter, the sensor may be deteriorated due to added substances in the oil.
Please check the resistivity of the sensor against the cutting oil you are using beforehand.

Note 4 : The given weight includes the weight of two nuts and one toothed lock washer.

------------------------------ Tab3 showing ------------------------------

Dimensions

Unit: mm in

GX-5SU
GX-5SUB

Sensor

GX-5SU GX-5SUB

Note:GX-5SUB has an operation indicator (orange) instead of the 2-color indicator.

GX-8MU
GX-8MUB

Sensor

GX-8MU GX-8MUB

Note:GX-8MUB has an operation indicator (orange) instead of the 2-color indicator.

GX-12MU（B）
GX-N12M（B）

Sensor

GX-12MU（B） GX-N12M（B）

Note:GX-12MUB and GX-N12M(B) have an operation indicator (orange) instead of the 2-color indicator.

GX-18MU（B）
GX-N18M（B）

Sensor

GX-18MU（B） GX-N18M（B）

Note:GX-18MUB and GX-N18M(B) have an operation indicator (orange) instead of the 2-color indicator.

GX-30MU（B）
GX-N30M（B）

Sensor

GX-30MU（B） GX-N30M（B）

Note:GX-30MUB and GX-N30M(B) have an operation indicator (orange) instead of the 2-color indicator.

GX-8MLU
GX-8MLUB

Sensor

GX-8MLU GX-8MLUB

Note:GX-8MLUB has an operation indicator (orange) instead of the 2-color indicator.

GX-12MLU（B）
GX-N12ML（B）

Sensor

GX-12MLU（B） GX-N12ML（B）

Note:GX-12MLUB and GX-N12ML(B) have an operation indicator (orange) instead of the 2-color indicator.

GX-18MLU（B）
GX-N18ML（B）

Sensor

GX-18MLU（B） GX-N18ML（B）

Note:GX-18MLUB and GX-N18ML(B) have an operation indicator (orange) instead of the 2-color indicator.

GX-30MLU（B）
GX-N30ML（B）

Sensor

GX-30MLU（B） GX-N30ML（B）

Note:GX-30MLUB and GX-N30ML(B) have an operation indicator (orange) instead of the 2-color indicator.

GX-12MU（B）-J
GX-F12MU-J

Sensor

GX-12MU（B）-J GX-F12MU-J

Note:GX-12MUB-J has an operation indicator (orange) instead of the 2-color indicator.

GX-18MU(B)-J
GX-F18MU-J

Sensor

GX-18MU(B)-J GX-F18MU-J

Note:GX-18MUB-J has an operation indicator (orange) instead of the 2-color indicator.

GX-30MU(B)-J
GX-F30MU-J

Sensor

GX-30MU(B)-J GX-F30MU-J

Note:GX-30MUB-J has an operation indicator (orange) instead of the 2-color indicator.

GX-12MLU-J
GX-12MLUB-J

Sensor

GX-12MLU-J GX-12MLUB-J

Note:GX-12MLUB-J has an operation indicator (orange) instead of the 2-color indicator.

GX-18MLU-J
GX-18MLSB-J

Sensor

Note:GX-18MLUB-J has an operation indicator (orange) instead of the 2-color indicator.

GX-30MLU-J
GX-30MLUB-J

Sensor

Note:GX-30MLUB-J has an operation indicator (orange) instead of the 2-color indicator.

MS-SS5

Sensor mounting bracket for GX-5SU(B) (Optional)

MS-SS5

Material:Nylon 66

MS-H12 MS-H18 MS-H30

Protection cover (Optional)

MS-H12 MS-H18 MS-H30

Material:Fluorine resin

Model No.ABCApplicable
model No.
MS-H125ø11.5
ø0.453		ø14
ø0.551		GX-12MU(B)
GX-N12M(B)
MS-H186ø17.5
ø0.689		ø20
ø0.787		GX-18MU(B)
GX-N18M(B)
MS-H308ø29.4
ø1.157		ø33
ø1.299		GX-30MU(B)
GX-N30M(B)

------------------------------ Tab4 showing ------------------------------

I/O Circuit and Wiring diagrams

GX-□U(B)

DC 2-wire type

I/O circuit diagram

I/O circuit diagram

Note: The maximum load current varies depending on the ambient temperature.

GX-U/GX-FU/GX-N

Symbols･･･
ZD: Surge absorption zener diode
Tr : PNP output transistor

Wiring diagram

pic03

Conditions for the load
(1)The load should not be actuated by the leakage current (0.8 mA) in the OFF state.
(2)The load should be actuated by (supply voltage – 3 V) in the ON state.
(3)The current in the ON state should be between 3 to 70 mA DC.
[In case the current is less than 3 mA, connect a bleeder resistance in parallel to the load so that a current of 3 mA, or more, flows.]

GX-□U(B)-J　GX-F□U-J

Spatter-resistant of DC 2-wire type

I/O circuit diagram

pic04

Notes:

1) This is when the mating cable CN-22G-C□ is connected. The connecter pins No.2 and No.4 are short-circuited inside the mating cable connecter. However, when the mating cable CN-24-C□ is connected;
GX-□U-J (normally open): (Black / 4) 0 V
GX-□UB-J (normally closed): (White / 2) 0 V

2) The maximum load current varies depending on the ambient temperature.

pic05

Conditions for the load

1) The load should not be actuated by the leakage current (0.8 mA) in the OFF state.

2) The load should be actuated by (supply voltage – 3 V) in the ON state.

3) The current in the ON state should be between 3 to 70 mA DC.
[In case the current is less than 3 mA, connect a bleeder resistance in parallel to the load so that a current of 3 mA, or more, flows.]

Symbols･･･
ZD: Surge absorption zener diode
Tr : PNP output transistor

Wiring diagram

pic06

Note: This is when the mating cable CN-22G-C□ is connected. The connecter pins No.2 and No.4 are short-circuited inside the mating cable connecter.
However, when the mating cable CN-24-C□ is connected;
GX-□U-J (normally open): Black / 4
GX-□UB-J (normally closed): White / 2

Connector pin position
GX-□U-J (Normally open)

pic07

GX-□UB-J (Normally closed)

pic08

GX-F□U-J (Spatter-resistant type)

pic09

GX-N□

DC 3-wire type (NPN output)

I/O circuit diagram

I/O circuit diagram

Note： If a capacitive load is directly connected to the output, malfunction may occur.

Symbols･･･
D : Reverse supply polarity protection diode
ZD: Surge absorption zener diode
Tr: NPN output transistor

Wiring diagram

pic11

 

------------------------------ Tab5 showing ------------------------------

Sensing characteristics

*TYPICAL

GX-5SU　GX-5SUB

Sensing field
pic01
Correlation between sensing object size and sensing range
pic02

As the sensing object size becomes smaller than the standard size (iron sheet 6 × 6 × t 1 mm 0.236 × 0.236 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-8MU　GX-8MUB

Sensing field
pic03
Correlation between sensing object size and sensing range
pic04

As the sensing object size becomes smaller than the standard size (iron sheet 8 × 8 × t 1 mm 0.315 × 0.315 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-12MU(B)　GX-F12MU-J

Sensing field
pic05
Correlation between sensing object size and sensing range
pic06

As the sensing object size becomes smaller than the standard size (iron sheet 12 × 12 × t 1 mm 0.472 × 0.472 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-18MU(B)　GX-F18MU-J

Sensing field
pic07
Correlation between sensing object size and sensing range
pic08

As the sensing object size becomes smaller than the standard size (iron sheet 18 × 18 × t 1 mm 0.709 × 0.709 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-30MU(B)　GX-F30MU-J

Sensing field
pic09
Correlation between sensing object size and sensing range
pic10

As the sensing object size becomes smaller than the standard size (iron sheet 30 × 30 × t 1 mm 1.181 × 1.181 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-8MLU　GX-8MLUB

Sensing field
pic11
Correlation between sensing object size and sensing range
pic12

As the sensing object size becomes smaller than the standard size (iron sheet 20 × 20 × t 1 mm 0.787 × 0.787 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-12MLU　GX-12MLUB

Sensing field
pic13
Correlation between sensing object size and sensing range
pic14

As the sensing object size becomes smaller than the standard size (iron sheet 30 × 30 × t 1 mm 1.181 × 1.181 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-18MLU　GX-18MLUB

Sensing field
pic15
Correlation between sensing object size and sensing range
pic16

As the sensing object size becomes smaller than the standard size (iron sheet 50 × 50 × t 1 mm 1.969 × 1.969 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-30MLU　GX-30MLUB

Sensing field
pic17
Correlation between sensing object size and sensing range
pic18

As the sensing object size becomes smaller than the standard size (iron sheet 70 × 70 × t 1 mm 2.756 × 2.756 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-N12M　GX-N12MB

Sensing field
pic19
Correlation between sensing object size and sensing range
pic20

As the sensing object size becomes smaller than the standard size (iron sheet 12 × 12 × t 1 mm 0.472 × 0.472 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-N18M　GX-N18MB

Sensing field
pic21
Correlation between sensing object size and sensing range
pic22

As the sensing object size becomes smaller than the standard size (iron sheet 18 × 18 × t 1 mm 0.709 × 0.709 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-N30M　GX-N30MB

Sensing field
pic23
Correlation between sensing object size and sensing range
pic24

As the sensing object size becomes smaller than the standard size (iron sheet 30 × 30 × t 1 mm 1.181 × 1.181 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-N12ML GX-N12MLB

Sensing field
pic25
Correlation between sensing object size and sensing range
pic26

As the sensing object size becomes smaller than the standard size (iron sheet 30 × 30 × t 1mm 1.181 × 1.181 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-N18ML　GX-N18MLB

Sensing field
pic27
Correlation between sensing object size and sensing range
pic28

As the sensing object size becomes smaller than the standard size (iron sheet 50 × 50 × t 1 mm 1.969 × 1.969 × t 0.039 in), the sensing range shortens as shown in the left figure.

GX-N30ML　GX-N30MLB

Sensing field
pic29
Correlation between sensing object size and sensing range
pic30

As the sensing object size becomes smaller than the standard size (iron sheet 70 × 70 × t 1 mm 2.756 × 2.756 × t 0.039 in), the sensing range shortens as shown in the left figure.

------------------------------ Tab6 showing ------------------------------

Cautions For Use

<All models>

  • 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.

Mounting

  • The tightening torque should be under the value given below.

Mounting with a set screw

  • Tighten with the cup-point of a set screw (M4).

<Non-threaded type>

円柱型

Mounting hole process dimension

取り付け穴加工寸法

Model No.A (mm in)B (mm in)C (mm in)Tightening torque
GX-5SU(B)5 to 30 0.197 to 1.1813 0.118ø5.5+ 0.20ø0.217+ 0.00800.29 N·m (Note)

Note : From the shipment on October, 2019.

  • Do not fix on the operation indicator and opposite to it.
    シリンダ型近接センサ[アンプ内蔵] GX-U/GX-FU/GX-N

Mounting with nut

<Shielded of threaded type>

Shielded of threaded type

<Non-shielded of threaded type>

Non-shielded of threaded type

Model No.Dimension D (mm in)Tightening torque
GX-8MU(B)3 to 10.3 0.118 to 0.4065.9 N·m
10.3 0.406 or more11.8 N·m
GX-12MU(B)
GX-F12MU-J
GX-N12M(B)		3.5 to 13.5 0.138 to 0.53110 N·m
13.5 0.531 or more20 N·m
GX-18MU(B)
GX-F18MU-J
GX-N18M(B)		4 to 18 0.157 to 0.70945 N·m
18 0.709 or more80 N·m
GX-30MU(B)
GX-F30MU-J
GX-N30M(B)		5 to 21 0.197 to 0.82780 N·m
21 0.827 or more180 N·m
GX-8MLU(B)12 0.472 or more11.8 N·m
GX-12MLU(B)
GX-N12ML(B)		15 0.591 or more20 N·m
GX-18MLU(B)
GX-N18ML(B)		25 0.984 or more80 N·m
GX-30MLU(B)
GX-N30ML(B)		30 1.181 or more180 N·m

Note:Mount such that the nuts do not protrude from the threaded portion.

  • The root truncation of the threads is shallow owing to strengthening of the sensors against tightening.
    When tapping holes on equipment to fix the sensors, the prepared holes must be value in the table below.

Model No.Prepared hole
GX-8MU(B)
GX-8MLU(B)		ø7.2 mm
ø0.283 in
GX-12MU(B)
GX-12MLU(B)
GX-F12MU-J
GX-N12M(B)
GX-N12ML(B)		ø11.2 mm
ø0.441 in

Distance from surrounding metal

  • As metal around the sensor may affect the sensing performance, pay attention to the following points.

Influence of surrounding metal

  • The surrounding metal will affect the sensing performance. Keep the minimum distance specified in the table below.

Influence of surrounding metal

Model No.E (mm in)
GX-5SU(B)4.5 0.177
GX-8MU(B)4.5 0.177
GX-12MU(B)
GX-F12MU-J
GX-N12M(B)		8 0.315
GX-18MU(B)
GX-F18MU-J
GX-N18M(B)		20 0.787
GX-30MU(B)
GX-F30MU-J
GX-N30M(B)		40 1.575
GX-8MLU(B)8 0.315
GX-12MLU(B)
GX-N12ML(B)		22 0.866
GX-18MLU(B)
GX-N18ML(B)		45 1.772
GX-30MLU(B)
GX-N30ML(B)		75 2.953

Embedding of the sensor in metal

  • Sensing range may decrease if the sensor is completely embedded in metal. Especially for the non-threaded type and the non-shielded type, keep the minimum distance specified in the table below.

Model No.F (mm in)G (mm in)
GX-5SU(B)ø12 ø0.4723 0.118
GX-8MLU(B)ø24 ø0.94512 0.472
GX-12MLU(B)
GX-N12ML(B)		ø50 ø1.96915 0.591
GX-18MLU(B)
GX-N18ML(B)		ø75 ø2.95325 0.984
GX-30MLU(B)
GX-N30ML(B)		ø105 ø4.13430 1.181

Note:With the non-shielded type, the sensing range may vary depending on the position of the nuts.

Mutual interference

  • 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

Face to face mounting

Parallel mounting

Parallel mounting

Model No.H (mm in)J (mm in)
GX-5SU(B)19 0.74814 0.551
GX-8MU(B)20 0.78715 0.591
GX-12MU(B)
GX-F12MU-J		35 1.37820 0.787
GX-18MU(B)
GX-F18MU-J		70 2.75645 1.772
GX-30MU(B)
GX-F30MU-J		115 4.52870 2.756
GX-8MLU(B)60 2.36245 1.772
GX-12MLU(B)145 5.70995 3.740
GX-18MLU(B)250 9.843165 6.496
GX-30MLU(B)350 13.780250 9.843
GX-N12M(B)25 0.98415 0.591
GX-N18M(B)50 1.96935 1.378
GX-N30M(B)90 3.54355 2.165
GX-N12ML(B)120 4.72470 2.756
GX-N18ML(B)180 7.087125 4.921
GX-N30ML(B)290 1.417190 7.480

Sensing range

  • 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

 IronStainless steel
(SUS304)		BrassAluminum
GX-5SU(B)10.63 approx.0.32 approx.0.30 approx.
GX-8MU(B)10.59 approx.0.32 approx.0.29 approx.
GX-12MU(B)
GX-F12MU-J		10.75 approx.0.51 approx.0.49 approx.
GX-18MU(B)
GX-F18MU-J		10.75 approx.0.50 approx.0.48 approx.
GX-30MU(B)
GX-F30MU-J		10.69 approx.0.44 approx.0.42 approx.
GX-8MLU(B)10.64 approx.0.38 approx.0.38 approx.
GX-12MLU(B)10.67 approx.0.44 approx.0.43 approx.
GX-18MLU(B)10.68 approx.0.45 approx.0.43 approx.
GX-30MLU(B)10.67 approx.0.44 approx.0.43 approx.
GX-N12M(B)10.77 approx.0.52 approx.0.51 approx.
GX-N18M(B)10.73 approx.0.50 approx.0.48 approx.
GX-N30M(B)10.70 approx.0.45 approx.0.44 approx.
GX-N12ML(B)10.66 approx.0.44 approx.0.43 approx.
GX-N18ML(B)10.68 approx.0.46 approx.0.44 approx.
GX-N30ML(B)10.65 approx.0.44 approx.0.43 approx.

Protection cover (Optional)

  • It protects the sensing surface from welding sparks (spatter), etc.

Mounting method

Model No.Applicable model No.
MS-H12GX-12MU(B)
GX-N12M(B)
MS-H18GX-18MU(B)
GX-N18M(B)
MS-H30GX-30MU(B)
GX-N30M(B)

Note:Mount the protection cover so that there is no gap between it and the sensing surface.

Others

  • Do not use during the initial transient time (50 ms) after the power supply is switched on.
  • Make sure that stress by forcible bend or pulling is not applied directly to the sensor cable joint.

<DC 2-wire type>

Wiring

  • The sensor must be connected to a power supply via a load. If the sensor is connected to a power supply without a load, the short-circuit protection makes the sensor inoperable. (The output stays in the OFF state and the indicator does not light up.) In this case, rectify by connecting the power supply via a load. Now, the sensor becomes operable. Further, take care that if the power supply is connected with reverse polarity without a load, the sensor will get damaged.
    GX-U/GX-FU/GX-N
  • For series connection (AND circuit) or parallel connection (OR circuit) of sensors, take care of the following.
    直列接続（AND回路）や並列接続（OR回路）にてご使用になる場合
    pic14
  • The residual voltage of the sensor is 3 V. Before connecting a relay as the load, take care of its actuation voltage.
    (Some 12 V relays may not be usable.)
    pic15

2-color indicator [GX-(F)□U(-J) only]

  • When the sensing object is in the stable sensing range, the LED lights up in green, and when the sensing object is in the unstable sensing range, the LED lights up in orange. While the LED lights up in green, the sensing is performed stably without being affected by temperature drifts or voltage fluctuations.
    pic16

 

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