One Series Electronic Switch Product Line

Electronic Pressure, Differential Pressure and Temperature switches with Innovative 2-Wire Design

Description – One Series 2-Wire
A new breed of electronic switch, the One Series 2-Wire derives its power and provides a switch using the discrete or analog input of a PLC or DCS. Uniquely suited for plant upgrades where only two wires already exist, the One Series 2-Wire can replace other two-wire instrumentation easily and cost- effectively without the need to add additional wiring. One Series with Gauge Pressure Sensor Features
• Power and output switching achieved using the same 2 wires • 2-button key pad for easy programming of set point and deadband, 100% adjustable • LCD display for settings, status and process variable • All solid-state design; no moving parts • All stainless steel pressure sensors with 0–4500 psi (310,3 bar) gauge ranges and differential pressure to 0-200 psid (13,8 bar) • Temperature sensor ranges from -300 to 1000°F (-184.4 to 537.8°C) • 24 VDC, 115 VAC and loop-powered models available • Class I, Division 1 (Intrinsically Safe with optional safety barrier) and Division 2 rated; Enclosure Type 4X certifi ed 24 VDC, 115 VAC & loop-powered models available ATEXAPPROVED Strengths & Capabilities
• Connects to a PLC with only 2 (existing) wires • Monitors its own health with local and remote reporting (IAW®) self-diagnostics • Reports clogged sensor conditions • Switches with programmable deadband or manual reset • 0.1% repeatability over a wide temperature range• Easy set up and test in place One Series with Gauge Pressure Sensor and bottom conduit entry Applications
• Provides discrete and 4-20 mA input to a PLC or DCS• Drop-in replacement for mechanical switches • Precise pump staging with 100% adjustable deadband • Process control, emergency shutdown, monitoring in hazardous locations, machine tool switch, hydraulic monitoring, factory automation Space saving Conduit Locations (EMC, LVD, PED) 4 UNITED ELECTRIC CONTROLS For complete specifi cations visit www.ueonline.com