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Series Pressure Switch  PS75 Gems Sensors

Gems Sensors Series Pressure Switch

Gems PS75 Series have all metal surfaces for overload stops and deliver reliable operation under extremely high pressure surges. They are designed with a wear disc and cushioning ring for increased life.
Stock
-1
Code
PS75

Gems Sensors Series Pressure Switch

 Rugged Cylindrical Pressure Switch

Quick Specs...  

  • 5 to 6000 psi (0.35 to 414 bar) 
  • Wear Disc design for longer life 
  • DPDT Models available 
  • Side Mounted DIN Connection 
  • Top Mounted Electrical Connection

Overview / Design Principle: 

Gems PS75 Series have all metal surfaces for overload stops and deliver reliable operation under extremely high pressure surges. They are designed with a wear disc and cushioning ring for increased life. The switches use a piston/diaphragm design which combines the high proof pressure of piston technology with the sensitivity of a diaphragm design. They can be field or factory adjusted.

 

Specifications: 

 Wetted Parts 

Diaphragm: Buna-N (optional EPDM or Viton®)
Fitting: Zinc-Plated Steel (optional 316 SS)
Housing: Brass or Zinc-Plated Steel (optional 316 SS)
 

Operating Temperature 

see table below 

Switch 

see table below 

Electrical Termination  

DIN 43650A, IP65 Terminals 

Proof Pressure 

7500 psi (517 bar) except Range 10: 500 psi (35 bar)

Burst Pressure 9000 psi (600 bar)

Approvals 

CE, UL Approved units available, consult factory 

Weight, Approximate 

0.5 lbs. (0.23 kg) 

Recommended Operating Temperature Limits*

Diaphragm Material

-A, -B, -C Circuit without -RD

-AA, -BB, -CC Circuit or -RD

Nitrile

15°F to 185°F (-10°C to 85°C)

15°F to 250°F (-10°C to 121°C)

Viton®

0°F to 185°F (-18°C to 85°C)

0°F to 250°F (-18°C to 121°C)

EPDM

-10°F to 185°F (-23°C to 85°C)

-10°F to 250°F (-23°C to 121°C)

Neoprene

-10°F to 185°F (-23°C to 85°C)

-10°F to 250°F (-23°C to 121°C)

* Switches may function below the cold temperature limit but the setpoints and deadband will increase. Consult factory for details.

Switch Ratings

Electrical Switch Ratings

AC

DC

-A, -B, -C without -G

5 amps @ 125/250 Volts

5 amps resistive, 3 amps inductive @ 28 Volts

-A, -B, -C with -G

1 amp @ 125 Volts

1 amp resistive, 0.5 amps inductive @ 28 Volts

-AA, -BB, -CC without -G

2 switches rated 5 amps @ 125/250 Volts

2 switches rated 5 amps resistive, 3 amps inductive @ 28 Volts

-AA, -BB, -CC with -G

2 switches rated 1 amp @ 125/250 Volts

2 switches rated 1 amp resistive, 0.5 amps inductive @ 28 Volts

Repeatability / Deadband

 Pressure Range Code

Pressure Range 

Repeatability

Average Deadband*

 -A, -B, and -C Circuits

10

5-25 psi (0.35-1.7 bar)

± 1.0 psi (0.07 bar) + 2% of setting

3 psi (0.21 bar) + 5% of setting

20

15-75 psi (1-5.2 bar_

± 2.5 psi (0.17 bar) + 2% of setting 

5 psig (0.34 bar) + 10% of setting 

30

50-150 psi (3.5-10.3 bar)

± 6 psi (0.41 bar) + 2% of setting

15 psig (1.03 bar) + 13% of setting 

40

150 - 500 psi (10.3-34.5 bar) 

± 15 psi (10.3 bar) + 2% of setting

25 psi (1.72 bar) + 14% of setting 

50

500 - 1750 psi (34.5-121 bar)

 ± 25 psi (1.72 bar) + 2% of setting

55 psi (3.79 bar) + 15% of setting

60

1000 - 3500 psi (69-241 bar)

± 45 psi (2.41 bar) + 3% of setting

100 psig (6.89 bar) + 16% of setting 

 70

2500-6000 psi (172-414 bar) 

± 80 psi (5.51 bar) + 4% of setting

200 psi (13.8 bar) + 17% of setting

 -AA, -BB, and -CC Circuits**

 10

5-25 psi (0.35-1.7 bar) 

± 1.5 psi (0.10 bar) + 3% of setting

2 psi (0.14 bar) + 5% of setting 

20

15-75 psi (1-5.2 bar) 

± 3.5 psi (0.24 bar) + 3% of setting

4 psig (0.28 bar) + 8% of setting 

30

50-150 psi (3.5-10.3 bar) 

± 9 psi (0.62 bar) + 3% of setting

13 psig (0.90 bar) + 10% of setting 

40

150-650 psi (10.3-44.8 bar) 

± 22 psi (1.51 bar) + 3% of setting

21 psi (1.72 bar) + 11% of setting 

50

500-1750 psi (34.5-121 bar) 

± 35 psi (2.41 bar) + 3% of setting

45 psi (3.10 bar) + 12% of setting 

60

1000-3500 psi (69-241 bar)

± 60 psi (4.14 bar) + 4% of setting

80 psi (5.52 bar) + 13% of setting

70

2500-6000 psi (172-414 bar)

± 100 psi (6.89 bar) + 5% of setting

160 psi (11.0 bar) + 14% of setting

* In certain applications, deadband can be tailored and controlled to customer specifications. Consult factory for details.
** Operation of both switches in most cases will not be simultaneously but will occur within the specifications listed. Deadband figures already reflect the improvement from the -RD option which is automatically included in the -AA, -BB, and -CC circuits.

 

 Dimensions:
 DimPS75a.gif 
A  Pressure Port 
 
 DimPS75b.gif 
A  1.781" (45) 
B  1" HEX (25.4) 
C  1.185" (30) 
 
 DimPS75c.gif 
A  DIN 43650A Right Angle with Cable Clamp 
B  2.70" (69) 
C  2.348" (60) 
D  Adjustment Screw Under Cap 
E   2.79" (71) 
 
 DimPS75d.gif 
A  1.00" (25.4) 
B  1.12" (28) 
 DPST
 DimPS75e.gif 
A  1/8" NPT Thread 
B  2.31" (58.6) 
C  STD. 18" Wire Length 
D  1.19" (30) 
E  Adjustment Screw 
SPDT
 DimPS75f.gif 
A  1.19" (30) 
B  Pressure Port 
C  2.76" (70) 
D  Red = N.O., Black = Common, Green = N.C. 
E  Adjustment Screw 

Product Documentation

PS75 Series
PS75 Series - Download PDF
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