SMC Corporation of America
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The ZSM1 series diaphragm type vacuum switch is available in a solid state non-contact or a reed type design. The ZSM1 has a response time of 100 ms. It is lightweight, compact and has a long life.

ZSM1 is a basic vacuum switch with 1 output.  No analog output is included.  Solid state and contact reed switch options are available,with different voltages.  The switch output turns ON when vacuum is greater that the set point.  A red LED indicator also light to correspond with the output signal.  A rotary trimmer adjusts the switch set point.  ZSM1 can be mounted in a ZM generator unit,

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Indicator light 2 3 Lead wire R 1/8 Port size 65 g Mass Electrical Specifications ZSM1-115 Supply voltage 4.5 to 28 VDC Output (Open collector) 28 V, Max. 40 mA Current consumption 10 mA or less (24 VDC) ZSM1-121 Supply voltage 100 VAC/DC Max. operating current range 24 V or less: 50 mA, 48 V: 40 mA, 100 V: 20 mA Max. contact capacity AC 2 VA, 2 W DC How to Order ZSM1 1 15 Vacuum switch diaphragm

ZSM1-121 Connection example with PLC In the case of common terminal is negative LED Brown ( + ) Brown Resistance Reed switch Main circuit of switch Black ( ) ZSE ISE PLC Input terminal Zener diode ZSP () Blue Blue PS COM ISA PSE + IS ISG Dimensions ZSM 23 10 15 ZSM1-115 ZSM1-121 Pressure adjusting screw 52.5 500 Indicator light Indicator light R 1/8 871 Series ZSM1-115/121 Specific Product

Model: 10 (200 L/min [ANR]), Pressure Range: 5 (0.005~0.9MPa), Power Voltage: 0 (24VDC), Input Signal: 0 (Current Style 4~20mADC), Monitor Output: 2 (Switch Output NPN), Thread: Rc(PT), Port Size: 1 [1/8 (1000)], Accessory: None, Cable Connector: L (Right Angle Style 3m)

Model: 10 (200 L/min [ANR]), Pressure Range: 3 (0.005~0.5MPa), Power Voltage: 0 (24VDC), Input Signal: 0 (Current Style 4~20mADC), Monitor Output: 2 (Switch Output NPN), Thread: Rc(PT), Port Size: 1 [1/8 (1000)], Accessory: None, Cable Connector: L (Right Angle Style 3m)

Model: 200 L/min [ANR], Pressure Range: 0.005~0.9MPa, Power Voltage: 24VDC, Input Signal: Current Style 4~20mADC, Monitor Output: Switch Output NPN, Thread: Rc(PT), Port Size: 1 [1/8 (1000)], Accessory: None, Cable Connector: Right Angle Style 3m, Pressure Display Unit: -, Options: -

Model: 200 L/min [ANR], Pressure Range: 0.005~0.5MPa, Power Voltage: 24VDC, Input Signal: Current Style 4~20mADC, Monitor Output: Switch Output NPN, Thread: Rc(PT), Port Size: 1 [1/8 (1000)], Accessory: None, Cable Connector: Right Angle Style 3m, Pressure Display Unit: -, Options: -

Port Size: T1 (Single Unit Mounting NPTF 1/8), Switch & Voltage: 15 (Solid State Switch/10~26VDC)

Port Size: 0 (ZM Ejector Mounting), Switch & Voltage: 15 (Solid State Switch/10~26VDC), Lead Wire Length: L (3m)

Port Size: 1 (Single Unit Mounting R(PT) 1/8), Switch & Voltage: 21 (Reed Switch/100VAC), Lead Wire Length: L (3m)

Port Size: T1 (Single Unit Mounting NPTF 1/8), Switch & Voltage: 15 (Solid State Switch/10~26VDC), Lead Wire Length: L (3m)

Port Size: T1 (Single Unit Mounting NPTF 1/8), Switch & Voltage: 21 (Reed Switch/100VAC), Lead Wire Length: L (3m)

Port Size: 1 (Single Unit Mounting R(PT) 1/8), Switch & Voltage: 15 (Solid State Switch/10~26VDC)

Port Size: 1 (Single Unit Mounting R(PT) 1/8), Switch & Voltage: 15 (Solid State Switch/10~26VDC), Lead Wire Length: L (3m)