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GP-A8SI | High Accuracy Eddy Current Type Displacement Sensor GP-A(Discontinued)

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Discontinued
September 30, 2018

Product Number	GP-A8SI
Part Number	GP-A8SI
Product	High Accuracy Eddy Current Type Displacement Sensor
Details	For 2 mm 0.079 in sensing
Product name	High Accuracy Eddy Current Type Displacement Sensor GP-A(Discontinued)

High Speed・High Accuracy Eddy Current Type Digital Displacement Sensor GP-X
GP-XC8S
GP-XC8S
Recommended replacement is different in lineup, size of controller, or analog output characteristics.
For different frequency type, please utilize interference prevention function of GP-X series.
Recommended replacement does not have analog current output. When using the analog current output, please use RS-232C or BCD output unit (optional).

Spec Detail As of September 30, 2018

Item	Specifications
Product Number	GP-A8SI
Part Number	GP-A8SI
Type	Non-threaded type sensor head Different frequency
Sensing range	0 to 2 mm 0 to 0.079 in
Standard sensing object	Iron sheet 12 × 12 × t 1 mm 0.472 × 0.472 × t 0.039 in
Supply voltage	24 V DC plus or minus 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 Ohm approx. Analog current -Output current: 4 to 20 mA -Load resistance: 0 to 350 Ohm
Analog outputs (Analog voltage output , Analog current output) : Response frequency	1.6 kHz (-3 dB)
Analog outputs (Analog voltage output , Analog current output) : Resolution	0.04 % F.S.
Analog outputs (Analog voltage output , Analog current output) : Linearity	Within plus or minus 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)
Alarm output : Output operation	Turns ON when the sensor head connection is improper or the sensor head cable is disconnected
Alarm output : 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 : Sensor head	1 micro μm/℃ 0.039 mil/℃ (Note) These values are for a range which is 20 to 60 % of the maximum sensing distance.
Temperature characteristics : Amplifier	0.8 micro μm/℃ 0.031 mil/℃ (Note) These values are for a range which is 20 to 60 % of the maximum sensing distance.
Protection : Sensor head	IP67 (IEC), IP67G
Protection : Amplifier	-
Ambient temperature : Sensor head	-10 to +55 degrees +14 to +131 degrees Fahrenheit , Storage: -20 to +70 degrees -4 to +158 degrees Fahrenheit
Ambient temperature : Amplifier	0 to +50 degrees +32 to +122 degrees Fahrenheit (No dew condensation allowed), Storage: 0 to +50 degrees +32 to +122 degrees Fahrenheit
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 MOhm , 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
Vibration resistance : 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
Shock resistance : 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: ABS
Material : Amplifier	Enclosure: ABS
Cable : Sensor head	Connector attached high frequency coaxial cable, 3 m 9.843 ft long
Cable length : Amplifier	Total length up to 100 m 328.084 ft is possible with 0.3mm², or more, cable. (Note) Take care that the output voltage is reduced due to the resistance of the wiring cable.
Net Weight : Sensor head	40 g approx.
Net Weight : Amplifier	170 g approx.
Accessory	Adjusting screwdriver: 1 pc.