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| | From 2 to 6000 PSI (40 mbar to 400 bar), Cover A Wide Range of Applications ► General, Vacuum, Differential, Specialty ► Field-Adjustable or Factory Set Switches ► High Proof Pressure ► Rugged and Dependable GEMS offers a choice of pressure switches, from compact cylindrical models for OEM use, to larger, enclosed units for rugged process applications. These switches are ideal for the filtering process of coolants in the equipment tool industry, use in transmissions of off-highway vehicles and as redundant systems with existing monitors such as transducers manufacturer. Unique Piston/Diaphragm Design A piston/diaphragm design, incorporating the high proof pressure of piston technology allows these switches to operate with the sensitivity and accuracy of a diaphragm design. Repeatability ranges from 0.25 percent to 5 percent of the set point. Many Materials To Choose From Enclosures include aluminum, stainless steel, brass, reinforced plastic and zinc-plated steel. Wetted parts include a diaphragm available in Buna-n, Teflon® coated Kapton®, stainless steel, PTFE, EPDM or Viton® and a pressure port available in stainless steel, brass, zinc or aluminum. | |
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| | Pressure Switch Option Descriptions | |
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| | G: Gold contacts are usually required for low DC current loads (<12 VDC @ 12 mA) associated with TTL input devices. They provide decreased contact resistance, which results in more reliable switching especially in the presence of an oxidizing atmosphere. OXY: Wetted Materials are ultrasonically cleaned per the Compressed Gas Association's Method G-4.1. 10A: 10A option is provided by a microswitch rated 10 Amperes at 250 VAC. This microswitch has a wide movement differential, which results in a larger deadband than listed in the standard catalog pages. | IP: Ingress Protection is provided by either an epoxy sealed cap (IP65) or silicon wire seals (IP66). On some models, this option is only available with FS option. RB: Rubber Boot is designed to be cut out for the proper wire or cable size by the customer and sealed with an appropriate sealant in the field. WF: Weatherpack female termination consists of the following Delphi P/N's:(12045793 Conn "C" Circuit), 12089188 Female Pins and 12015323 Wire Seals. | WM: Weatherpack male termination consists of the following Delphi P/N's: 12010973 Professional connector, (12010717 Conn "C" Circuit), 12089040 Male Pins and 12015323 Wire Seals. DE: Deutsch male termination consists of the following Deutsch P/N's: DT04-2P Connector, (DTO4-3P "C" Circuit) 1060-16-0122 Male Pins and W(2 or 3)P Wedgelok. FS: Gems will preset switches to the indicated set point within repeatability limits listed on the specific product catalog page. | R: The restrictor option is recommended for hydraulic systems that need a small reduction in pressure pulsations to increase pressure switch life. It is a pressed in part that has an orifice size of 0.045" (1.4 mm) SR: The spiral restrictor option heavily dampens pressure pulsations in any hydraulic system, which prevents false signaling and premature wear. It is not recommended for pressure settings below 1500 psig (103 bar) because it slows the response time of the pressure switch. | |
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| | | Visit www.GemsSensars.com for most current information. | |
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