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Product Description
The BETA PRINCIPLE

A high quality, self-aligning diaphragm/piston sensor is the heart of a BETA switch. THe limited piston travel translates pressure at the diaphragm directly to actuation of the microswitch, with no intervening linkages or mechanisms and with full protection against very high overrange pressure.

The piston sensor is isolated from the precess fluid by a diaphragm and O-ring seal, retained by a process connection port. These three are the only process wetted parts and are available in an extensive range of materials.

The BETA switch has "designed-in" reliability.

Product Feature

• SAFETY
  -Safe, secure electrical hookup by clamp terminals.
  -Standard earth terminal.
  -IP 66 enclosure.
  -Solid cover with captive screws.

• RELIABILITY
  -Highest Overrange protection.
  -Spring loaded poston, exellent resistant aginst shock and vibration.
  -No pipe strains on the instrument to cause shift of setpoint.
  -Separate stainless steel mounting bracket.

• QUALITY
  Quality Assurance according to ISO 9001 covers all switch manufacturing.

• ECONOMY
  The wide range of process-wetted materials virtually eliminates the need for costly chemical seals.

• SERVICE
  The international BETA sales network backs up this high quality product with an equally high quality service.

Product Specification/Models

• Enclosure
  -IP66 - C1,C2,C3,C8
  -EEx d IIC T6(IP65) - V3,V5
  
• Process connection
  -1/4" NPTF, 1/2" NPTF, 2" NPTF, 1/2" NPTM, 1" NPTM
  
• Process conn material
  -316 SS, MONEL
  
• Diaphragm material
  -Buna-N, EPDM, Kalrez(R), Monel, Neoprene, PTFE, 316SS, Tantalum, Viton-A(R)
  
• Micro switch
  -SPDT, DPDT
• Adjustable range
  PRESSURE SWITCH
  -P301L : 2 ~ 15 mbar
  -P302L : 10 ~ 100 mbar
  -P304L : 20 ~ 240 mbar
  -P306L : 20 ~ 560 mbar
  -P308L : 25 ~ 1300 mbar
  -P402M : 100 ~ 400 mbar
  -P404M : 100 ~ 950 mbar
  -P406M : 120 ~ 2300 mbar
  -P408M : 150 ~ 5400 mbar
  -P502H : 0.3 ~ 1.6 bar
  -P504H : 0.4 ~ 3.9 bar
  -P506H : 0.5 ~ 9.0 bar
  -P508H : 0.7 ~ 21.5 bar
  -P708H : 3.0 ~ 76 bar
  -P808H : 4.0 ~ 170 bar
  -P908H : 10 ~ 300 bar
  VACUUM SWITCH
  _V304L : - 60 ~ 150 mbar
  -V404M : - 400 ~ 400 mbar
  -V506H : - 1.0 ~ 6.0 bar
  DIFFERENTIAL PRESSURE SWITCH
  -D302L : 12 ~ 75 mbar
  -D304L : 22 ~ 180 mbar
  -D306L : 25 ~ 450 mbar
  -D309L : 35 ~ 1250 mbar
  -D402M : 0.3 ~ 1.0 bar
  -D404M : 0.5 ~ 2.5 bar
  -D406M : 1.0 ~ 6.0 bar
  -D408M : 1.0 ~ 14.5 bar
  -D506M : 5 ~ 20 bar
  -D508M : 10 ~ 50 bar
  -D608M : 10 ~ 70 bar
  -D352H : 80 ~ 160 mbar
  -D354H : 100 ~ 500 mbar
  -D356H : 120 ~ 1450 mbar
  -D359H : 150 ~ 3450 mbar