Explosion-Proof Electronic Pressure Switches & Electronic Temperature Switches

One Series Ex d

One Series Electronic Pressure Switch and Electronic Temperature Switch For Division 1 (Zone 1) Areas

Product Line Overview
The One Series electronic pressure switches and electronic temperature switch set the standard for solid-state digital process monitoring. With a fully adjustable set point & deadband and 0.1% repeatability, the One Series is suitable for a wide variety of harsh and hazardous applications. Available in Type 4X enclosures for explosion-proof and non-incendive area classifications, these electronic switches are designed to provide protection for plants, capital equipment and people.

Each One Series model incorporates intelligent self-diagnostics and can report detected faults before they become major safety issues. Plug Port Detection protects against sensor clogging. Nuisance trip filtering reduces false and spurious signals. The ability to capture pressure spikes and valleys provides process information to aid in the commissioning and debugging process.

Consider a highly repeatable and fully adjustable deadband switch for applications where high cycle rate is present. With no moving parts, the One Series digital solid-sate design is uniquely suited for controlling pump and compressor stop/start cycles. And with its digital process display and available 4-20 mA output, the One Series can provide the functions of a switch, gauge and a transmitter with only one connection to the process

For plant upgrades, the One Series is the most cost-effective choice. 2-Wire models utilize existing plant wiring. Loop-powered models provide high-capacity switching and a 4-20 mA output. External power supply models can handle currents up to 10 amperes or 2 fully-independent set points and deadbands and the 4-20 mA output.

Adjustability, accuracy, versatility, intelligence  see what the One Series can do in your critical application.
 

• Digital process and status display
• Fully adjustable set point and deadband
• Local and remote self-diagnostic reporting
• Agency certifications for hazardous locations
  • cULus, IECEx, GOST, CE and ATEX
  • Class I, Division 1 & 2 models available
• Safety system enabled 
  • SIL Verification and FMEDA reports available
• 3 ways to power the control 
  • 2-wire discrete input power
  • Loop-powered analog input
  • External power supply
• Multiple sensor types and ranges 
  • Gage pressure up to 6000 psi (413,7 bar)
  • Differential pressure up to 200 psid (13,8 bar d)
  • RTD temperature from -300 to 1,000ºF  (-184 to 538ºC)

• Explosion-proof hazardous location approvals for gas groups A, B, C & D 
• 2-wire discrete input powered or loop-powered; no additional wiring is required
• Drops in place of mechanical switches
  • Connects directly to PLC or DCS inputs
  • Uses only 2 wires for power AND switching
  • 24 VDC and 115 VAC input compatible
  • Easy and cost-effective plant upgrades
  • Analog trending output available on 2XLP Models
• Provides alarm and shutdown for critical safety applications 
  • FMEDA and SIL Verification reports available
• Class I, Division 1 & 2 area classifications 

 

• Explosion-proof hazardous location approvals for gas groups A, B, C & D 
• 4-wire external 115 VAC powered
• Provides local monitoring and switching; no PLC required
  • Connects directly to the MCC for motor and compressor control
  • Switches 10 amperes at up to 280 VAC
  • Replaces a switch and a gauge
  • Solid-state relay can be placed in series or parallel with other switches
• Provides alarm and shutdown for critical safety applications 
  • FMEDA and SIL Verification reports available
  Class I, Division 1 & 2 area classifications 

One Series Ex d 8X
Explosion-Proof Electronic Pressure Switch and Electronic Temperature  
 
One Series Ex d shown with local RTD temperature sensor

Product Overview    

• Explosion-proof hazardous location approvals for gas groups A, B, C & D
• Powered by 24 VDC external power supply
• The most versatile One Series:
  • Solid-state relays rated for up to 280 VAC and VDC; PLC compatible
  • Two independent set points and deadbands
  • Field-scalable 4-20 mA output for trending and predictive maintenance
  • Replaces 2 switches, a gauge and a transmitter
• Provides alarm and shutdown for critical safety applications 
  • FMEDA and SIL Verification reports available
• Class I, Division 1 & 2 area classifications 

One Series Bulletin
 

ONE SERIES 2-WIRE ELECTRONIC PRESSURE SWITCH AND ELECTRONIC TEMPERATURE SWITCH

One Series shown with Differential Pressure Sensor

Product Overview

• 2-wire connection to a PLC, DCS or Relay Coil; NO ADDITIONAL WIRING 
  REQUIRED! 
• 24 VDC, 115 VAC or Loop-Powered models are now available 
• Field scalable 4-20mA models available (2WLP) 
• Field adjustable set point and deadband, covering 100% of sensor range 
• Temperature, Gauge Pressure and Differential Pressure sensors available 
  with all-stainless steel wetted parts 
• Advanced programmable features including MAX/MIN capture, nuisance trip
  filtering, clogged sensor detection and manual reset
• I Am Working (IAW) self-diagnostics reported locally (on the switch 
  display) and remotely (in the control room)
• Class I Division 1 Intrinsically Safe (2W2D models only) and Division 2 
  Non-incendive all models)
   

One Series 2-Wire Product Specification

ONE SERIES 4W 
10 AMP ELECTRONIC PRESSURE SWITCH & ELECTRONIC TEMPERATURE SWITCH 



One Series shown with remote RTD temperature sensor

Product Overview

• Accepts 90-130 VAC power; provides high-capacity local switching
• Solid-state relay switch output rating: 10 A @ 24-280 VAC 
• Fully adjustable Set Point and Deadband; large LCD process display 
• Type 4X epoxy-coated aluminum enclosure, polycarbonate faceplate 
• Sensor ranges: Gage Pressure 0-4,500 PSI (310,3 bar); Differential Pressure 
  0-200 PSID (13,8 bar); Temperature -300 to 1000ºF  (538 ºC) 
• Advanced features include IAW self diagnostics, min/max memory, 
  plugged port detection, switch delay and manual reset 
• UL listed, Class I, Division 2 Groups A, B, C & D (Non-incendive)