One Series
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One Series smart transmitter-switch for pressure and temperature monitoring • NAMUR standard and HART®-enabled smart transmitter + programmable switch for process monitoring, alarm and shutdown • Switch-only models replace mechanical switches for cost-effective upgrades using existing wires • Display and keypad provide easy, fast and secure field programming while in service • Programmable set point and deadband provides accurate and fast cycling for rotating equipment • Worldwide hazardous location approvals included: DUAL SEAL CERTIFIED LEADERS IN SAFETY, ALARM & SHUTDOWN RoHS compliant

overview United Electric Controls Company (UE) is recognized for high-quality products with innovative product design, and the One Series carries this 85-year tradition well beyond the electromechanical switches for which UE is known. UE's One Series line of programmable electronic pressure and temperature products sets new standards for quality, reliability, and SIL capability. The One Series provides explosion (flame)-proof, intrinsically safe and non-incentive models that monitor gage pressure, differential pressure or temperature. An advanced low-power microcontroller provides four...

POWER Extremely low power consumption allows the One Series 2-Wire switch-only models (1XSW) to operate with no additional wiring or batteries. Power is obtained from the control system’s discrete input, making it ideal for plant upgrades from mechanical switches, re-using the same wiring and control schemes. The One Series 2-Wire provides a drop-in replacement for mechanical switches and a fast, easy and cost-effective means for plant upgrades. For direct switching applications, loop-powered hybrid transmitter-switch versions of the One Series can provide 2 independent solid-state relays...

application versatility For alarm and shutdown monitoring applications, there is no better choice than the One Series family of hybrid transmitterswitches from United Electric Controls. Measuring gage pressure, differential pressure or temperature, the extremely rugged and reliable One Series takes all of the guess-work out of monitoring process variables to prevent injury, loss and downtime. With its large backlit digital display, fully adjustable deadband and 100% solid-state design, the One Series is the obvious choice for plant upgrades and new construction projects. A built-in...

specifications Power input/ Switch capacity: Maximum Power Ratings / Output Signal Set Point Switch Ratings (SPST) IAW™ Switch Ratings (SPST) 2-wire 7.8 – 50 VDC discrete input powered @ 0.75 mA 2-wire 70 – 240 VAC & VDC @ 1 mA discrete input powered 4-wire 70 – 240 VAC @ 6 mA external power supply 2-wire 20 – 40 VDC @ 21 mA / Loop powered 4-20 mA analog output with HART® version 7 2-wire 20 – 40 VDC @ 21 mA / Loop powered 4-20 mA analog output with HART® version 7 0.5% of full range span, at room temperature 0.1% of full range span Approved ambient operating temperature range: Approved...

Programmable from -3 to 25% of the sensor's range, values are in the units of measure selected and are range dependent Programmable from 50 to 110% of the sensor's range, values are in the units of measure selected and are range dependent IAW™ (I Am Working) Diagnostics: Upon detecting a fault, the local display will show a fault code, the set point switch will change to the as-programmed tripped state, the normally-closed IAW™ Output switch will fail-safe-open and the NAMUR NE 43 standard 4-20 mA output will indicate ≤ 3.6 mA. See installation manual for a complete listing of detectable...

specifications Display: 4 digit x 0.5" (12.7 mm) backlit* LCD provides the following information Process variable MAX/MIN process values IAW™ (I Am Working) status Switch status Latch status Deadband values Trip counts Fault codes Offset indication * backlit on 1XTX models only Programmable over the sensor's entire range Programming and data protected by non-volatile FRAM Effective transmission distance: 2,000 feet (610 meters) at rated voltage for 1XSW models Gage Pressure – 316L stainless steel wetted parts, welded diaphragm, 1/2” NPT (female) process connection, micro-machined...

Build a part number by selecting the model, sensor and options from the tables below. Example: 1XTXSWP15-M041 • 2-wire, discrete input powered switch for 24 and 48 VDC logic solver inputs • Programmable set point switch rated at 7.8 - 50.0 VDC @ 0.1 A max. • IAW™ health status fail-safe-open switch rated at 7.8 50.0 VDC @ 0.1 A wired separately to the logic solver • 2-wire, discrete input powered switch for 110 and 230 VAC/VDC and 125 VDC logic solver inputs • Programmable set point switch rated at 70 - 240 VAC/ VDC @ 0.1 A • IAW™ health status fail-safe-open switch rated at 7.8 50.0 VDC @...

Pressure Operating Range1 + display resolution4 Differential pressure, piezo-resistive strain gage, silicone oil fill, 316L stainless wetted materials, 1/4” NPT (male) process connections, displayed as shown. K10 1 - The pressure range that the sensor will perform within specified tolerances. 2 - The maximum pressure that can be applied without affecting sensor performance. 3 - The maximum pressure that can be applied to both ports simultaneously without affecting sensor performance. Pressure on the “H” sensor port must be ≥ pressure on the “L” sensor port. 4 - The sensor range tables above...

Dual Seal - Provides secondary process seal for all pressure models Factory programmable set point, deadband and switch mode for one switch (1XSW Models Only) (see M202 for information required) M202 Factory programmable set point, deadband and switch mode for two relays (Model 1XTXSW Only) (all 6 settings are required when ordering - see example below) Set Point1 Relay Mode (For WINDOW modes, all 10 settings are required when ordering - see example below) Relay Relay Mode Open window close window IMPORTANT: When ordering option M201 or M202, please observe the decimal point resolution for...