PRDAT/PRDAWT Series
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PRDAT/PRDAWT Series Long distance inductive proximity sensor (spatter resistance type) Features ● Long sensing distance (1.5 to 2 times longer sensing distance guaranteed compared to existing models) ● Coated with the material against thermal resistance(prevention of malfunction due to spatter) ● Improved the noise resistance with dedicated IC ● Built-in surge protection, reverse polarity protection, overcurrent protection circuit ● red LED operation indication ● Protection structure IP67(IEC standards) ● Available as spatter-resistance limit switch Please read “Caution for your safety” in operation manual before using. The characteristic of spatter-resistance type The hot arc from arc welding machine is adhesive even with metals or plastics. Therefore, normal proximity sensor might have malfunction even though there are no sensing object if the arcs are put on the sensing surface. The arcs are not adhered on the sensing part of the spatter-resistance type proximity sensor as the part is coated with teflon against thermal resistance. Also, the protection cover sold optionally has the same function. Sensing distance Hysteresis Standard sensing target Sensing distance Power supply (operating voltage) Leakage current Response frequency※1 Residual voltage Affection by Temp. Control output Insulation resistance Dielectric strength Vibration Shock Max. 0.6mA 250Hz 100Hz Max. 3.5V Max. ±10% for sensing distance at ambient temperature 20℃ 2 to 100mA Min. 50MΩ (at 500VDC megger) 1,500VAC 50/60Hz for 1 min. 1mm amplitude at frequency of 10 to 55Hz (for 1 min.) in each of X, Y, Z directions for 2 hours 500m/s2(approx. 50G) in each of X, Y, Z directions for 3 times Indicator Operation indicator (red LED) Ambient -25 to 70℃, storage: -30 to 80℃ Environ- temperature ment Ambient humidity 35 to 95%RH, storage: 35 to 95%RH Protection circuit Protection Material Cable Surge protection circuit, overcurrent protection IP67(IEC standard) Case/Nut: Teflon coated brass, Washer: Teflon coated Iron, Sensing surface: Teflon, Standard cable(black): Polyvinyl chloride(PVC), Oil resistant cable(gray): Polyvinyl chloride(oil resistant PVC) ø5, 2-wire, 2m ø5, 2-wire, 2m (AWG22, Core diameter : ø5, 2-wire, 300mm, (AWG22, Core diameter : ø5, 2-wire, 300mm, 0.08mm, Number of cores: 60, M12 connector 0.08mm, Number of cores: 60, M12 connector Insulator out diameter:ø1.25) Insulator out diameter:ø1.25) Approval Weight※2 Approx. 134g(approx. 122g) Approx. 77g(approx. 65g) Approx. 221g(approx. 184g) Approx. 155g(approx. 143g) ※1: The response frequency is the average value. The standard sensing target is used and the width is set as 2 times of the standard sensing target, 1/2 of the sensing distance for the distance. ※2: The weight with packaging and the weight in parentheses is only unit weight. ※ Environment resistance is rated at no freezing or condensation.

Long Distance Cylindrical Spatter-Resistance type Dimensions (A) Photo electric sensor (B) Fiber optic sensor (F) Rotary encoder (G) Connector/ Socket Output circuit Presence None Main ciruit Sensing target Operation Load (M) Tacho/ Speed/ Pulse meter DC 2-wire standard type Brown ※For using DC 2-wire type, connect load before suppling the power and using this unit, or inner element may be damaged. ※Load can be wired to any direction. Connection diagram DC 2-wire type (standard type) 2 3 Brown Blue Normally Open(N.O.) Brown Blue ※Pin ①, ② are not used terminals. ※For DC 3-wire type...

PRDAT/PRDAWT Series Proper usage In case of the load current is small It may cause return failure of load by residual voltage. If the load current is under 5mA, please make sure the residual voltage is less than the return voltage of the load by connecting a bleeder resistor in parallel with the load as shown in the diagram. Bleeder resistor(R) Vs Vs (Ω) P= (W) I R [I:Action current of load, R:Bleeder resistance, P:Permissible power] R= Please make the current on proximity sensor smaller than the return current of load by connecting a bleeder resistor in parallel. ※W value of Bleeder...