AUTOMATION
CONTROLS

Search
Discontinued
Products



High Accuracy Eddy Current Type Displacement Sensor GP-A (Discontinued Products)

Specifications

Type For 1 mm 0.039 in sensing For 2 mm 0.079 in sensing
Non-threaded type sensor head Non-threaded type sensor head Threaded type sensor head
  Different frequency   Different frequency   Different frequency
Set model No. GP-A5S GP-A5SI GP-A8S GP-A8SI GP-A10M GP-A10MI
Sensing range 0 to 1 mm
0 to 0.039 in
0 to 2 mm
0 to 0.079 in
Standard sensing object 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
Supply voltage 24 V DC ± 10 % Ripple P-P 10 % or less
Current consumption 150 mA or less
Analog outputs
(Analog voltage output
Analog current output)
Analog voltage
・Output voltage: 0 to 5 V
・Output impedance: 100 Ω approx.
Analog current
・Output current: 4 to 20 mA
・Load resistance: 0 to 350 Ω
  Response frequency 1.6 kHz (-3 dB)
Resolution 0.04 % F.S.
Linearity Within ±0.5 % F.S.
Alarm output NPN open-collector transistor
・Maximum sink current: 100 mA
・Applied voltage: 30 V DC or less (between alarm output and 0 V)
・Residual voltage: 1.6 V or less (at 100 mA sink current)
0.4 V or less (at 16 mA sink current)
  Output operation Turns ON when the sensor head connection is improper or the sensor head cable is disconnected
Short-circuit protection -
External zero-adjustment
input
Input condition: Non-voltage contact or NPN open-collector transistor input
Signal condition: Low ... 0 to 1 V (duration 30 ms or more)
High ... 5 to 30 V, or open
Operation: Low ... External zero-adjustment setting
High ... External zero-adjustment ineffective
Zero-adjustment setting method Push button setting / External input setting
Power indicator Green LED (lights up when the power is ON)
Over indicator Orange LED (lights up when sensing range is exceeded)
Alarm indicator Yellow LED (lights up when the alarm output is ON)
Adjustments (1) Shift adjustment (by push-buttons),
(2) Span adjustment (by 14-turn adjuster)
Temperature
characteristics
(Note 2)
Sensor head 0.5 μm/℃
0.020 mil/℃
0.6 μm/℃
0.024 mil/℃
1 μm/℃
0.039 mil/℃
0.6 μm/℃
0.024 mil/℃
1 μm/℃
0.039 mil/℃
Amplifier 0.4 μm/℃
0.016 mil/℃
0.8 μm/℃ 0.031 mil/℃
Protection Sensor head IP67 (IEC), IP67G
Amplifier -
Ambient
temperature
Sensor head -10 to +55 ℃ +14 to +131 ℉,
Storage: -20 to +70 ℃ -4 to +158 ℉
Amplifier 0 to +50 ℃ +32 to +122 (No dew condensation allowed),
Storage: 0 to +50 ℃ +32 to +122 ℉
Ambient humidity 35 to 85 % RH, Storage: 35 to 85 % RH
Voltage withstandability Sensor head 250 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance Sensor head 20 MΩ, or more, with 250 V DC megger between all
supply terminals connected together and enclosure
Vibration resistance Sensor head 10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in
X, Y and Z directions for two hours each
Amplifier 10 to 150 Hz frequency, 0.75 mm 0.030 in double amplitude in
X, Y and Z directions for two hours each
Shock resistance Sensor head 500 m/s2 acceleration (50 G approx.) in X, Y and Z directions five times each
Amplifier 100 m/s2 acceleration (10 G approx.) in X, Y and Z directions five times each
Material Sensor head Enclosure: Stainless steel (SUS303)
Sensing part: Polyalylate
Enclosure: Stainless steel (SUS303)
Sensing part: ABS
Amplifier Enclosure: ABS
Cable Sensor head Connector attached high frequency coaxial cable, 3 m 9.843 ft long
Cable length (Note 3) Amplifier Total length up to 100 m 328.084 ft is possible with 0.3 mm2, or more, cable.
Net Weight Sensor head 40 g approx. 50 g approx.
(Note 4)
Amplifier 170 g approx.
Accessories Adjusting screwdriver: 1 pc. Nut: 2 pcs.,
Toothed lock
washer: 1 pc.
Adjusting
screwdriver: 1 pc.
Type For 5 mm 0.197 in sensing For 3 mm 0.118 in sensing
Threaded type sensor head Front sensing type sensor head
  Different frequency   Different frequency
Set model No. GP-A12ML GP-A12MLI GP-A14F GP-A14FI
Sensing range 0 to 5 mm 0 to 0.197 in 0 to 3 mm 0 to 0.118 in
Standard sensing object Iron sheet 30 x 30 x t 1 mm
1.181 x 1.181 x t 0.039 in
Iron sheet 15 x 15 x t 1 mm
0.591 x 0.591 x t 0.039 in
Supply voltage 24 V DC ± 10 % Ripple P-P 10 % or less
Current consumption 150 mA or less
Analog output
(Analog voltage output
Analog current output)
Analog voltage
・Output voltage: 0 to 5 V
・Output impedance: 100 Ω approx.
Analog current
・Output current: 4 to 20 mA
・Load resistance: 0 to 350 Ω
  Response frequency 1.6 kHz (-3 dB)
Resolution 0.04 % F.S.
Linearity Within ±0.5 % F.S.
Alarm output NPN open-collector transistor
・Maximum sink current: 100 mA
・Applied voltage: 30 V DC or less (between alarm output and 0 V)
・Residual voltage: 1.6 V or less (at 100 mA sink current)
0.4 V or less (at 16 mA sink current)
  Output operation Turns ON when the sensor head connection is improper or the sensor head cable is disconnected
Short-circuit protection -
External zero-adjustment
input
Input condition: Non-voltage contact or NPN open-collector transistor input
Signal condition: Low ... 0 to 1 V (duration 30 ms or more)
High ... 5 to 30 V, or open
Operation: Low ... External zero-adjustment setting
High ... External zero-adjustment ineffective
Zero-adjustment setting
method
Push button setting / External input setting
Power indicator Green LED (lights up when the power is ON)
Over indicator Orange LED (lights up when sensing range is exceeded)
Alarm indicator Yellow LED (lights up when the alarm output is ON)
Adjustments (1) Shift adjustment (by push-buttons),
(2) Span adjustment (by 14-turn adjuster)
Temperature
characteristics
(Note 2)
Sensor head 1.5 μm/℃
0.059 mil/℃
2.5 μm/℃
0.098 mil/℃
0.9 μm/℃
0.035 mil/℃
1.5 μm/℃
0.059 mil/℃
Amplifier 2.0 μm/℃ 0.079 mil/℃ 1.2 μm/℃ 0.047 mil/℃
Protection Sensor head IP67 (IEC), IP67G
Amplifier -
Ambient
temperature
Sensor head -10 to +55 ℃ +14 to +131 ℉,
Storage: -20 to +70 ℃ -4 to +158 ℉
Amplifier 0 to +50 ℃ +32 to +122 (No dew condensation),
Storage: 0 to +50 ℃ +32 to +122 ℉
Ambient humidity 35 to 85 % RH, Storage: 35 to 85 % RH
Voltage withstandability Sensor head 250 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance Sensor head 20 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure
Vibration resistance Sensor head 10 to 55 Hz frequency, 1.5 mm 0.059 in amplitude in X, Y and Z directions for two hours each
Amplifier 10 to 150 Hz frequency, 0.75 mm 0.030 in amplitude in X, Y and Z directions for two hours each
Shock resistance Sensor head 500 m/s2 acceleration (50 G approx.) in X, Y and Z directions for five times each
Amplifier 100 m/s2 acceleration (10 G approx.) in X, Y and Z directions for five times each
Material Sensor head Enclosure: Brass (Nickel plated)
Sensing part: Nylon
Enclosure: Stainless steel (SUS303)
Sensing part: ABS
Amplifier Enclosure: ABS
Cable Sensor head Connector attached high frequency coaxial cable, 3 m 9.843 ft long
Cable length
(Note 3)
Amplifier Total length up to 100 m 328.084 ft is possible with 0.3 mm2, or more, cable.
Net Weight Sensor head 45 g approx. (Note 4) 50 g approx.
Amplifier 170 g approx.
Accessories Nut: 2 pcs., Toothed lock washer: 1 pc.
Adjusting screwdriver: 1 pc.
2 pcs. each of M3 countersunk
head screws, spring washers,
plain washers and M3 nuts
Adjusting screwdriver: 1 pc.

Note 1 :Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +20 ℃ +68 ℉.
Note 2 :These values are for a range which is 20 to 60 % of the maximum sensing distance.
Note 3 :Take care that the output voltage is reduced due to the resistance of the wiring cable.
Note 4 :The given weight of the threaded type sensor head is the value including the weight of the nuts and the toothed lock washer.

Return to top

CONTACT US
If you have any questions, please select the option below to contact us or find answers.
CONTACT BY EMAIL / PHONE FIND LOCAL OFFICE

Return to top

CONTACT US
BY EMAIL
Please click your area to select country or region




Requests to customers (Automation Control Components & Industrial Device) [Excluding specific product]
Requests to customers (Automation Control Components & Industrial Device) [For specific product]
Requests to customers (FA Sensors & Components [Excluding motors])
Requests to customers (Dedicated to industrial motors)