Economy Power Supply Reliability - Simplicity - Isolation The ECS Economy Power Supply is the low-cost solution for many of the difficulties that can be encountered when powering 24V process instrumentation. It is an ideal process loop component for use with noiseprone 2-wire transmitters and data communications equipment, in most cases exceeding performance specifications of higher-priced supplies. Protect Your Investment—ECS outputs incorporate full-time short-circuit and overload protection. Liberal use of heat sinking materials and case venting mean burn-out is not a problem. Protect Loop Accuracy—Unit power-to-output isolation is 2500Vrms, standard. Ground loops between power source and transmitter are eliminated. Safeguard Sensitive Signals—Superior line and load regulating capabilities protect surge-sensitive transmitters and data modules from line irregularities. Noise and resultant data loss due to line power fluctuation is effectively under control. Compact thermoplastic housing snaps quickly and securely onto standard G-type and Top Hat rails. Features Two Drives From Which to Choose The ECS is available in both 70 and 200mA models covering a wide range process instruments’ power requirements and loop loads. • Superior Isolation. 2500Vrms protection means process signals will not be affected by even severe ground loops, motor noise, or other electrical transients. • Switchable Line Powering. The standard ECS, while configured at the factory according to customers’ specified 117Vac or 230Vac, can be fieldreconfigured. • Simple Adjustability. Calibrate the ECS to meet your requirements. The front panel potentiometer provides ±10% voltage output variance. Full Line of Power Supplies Moore Industries offers a comprehensive line of power supplies including: the DIN-mounted DPS family; the PPS, PPX, and SPS available with angle bracketing and explosion-proof enclosures; and the SMP surface mount unit, designed to work with rack-mounted instrumentation. Figure 1. The ECS Power Supply provides a high degree of operating isolation in a compact, economical housing.

Economy Power Supply Specifications Performance (continued) Performance Efficiency: 75%, typical, rated at full load Output Regulation: ±0.1% for a ±10% line variation Load Regulation: ±0.5% from 0 to 100% of load Ripple: 50mV, peak-to-peak, maximum Input Frequency: 50 to 60Hz Ambient Conditions Isolation: 2500Vrms, supply to output Adjustments Multi-turn potentiometer on front panel adjusts output voltage ±10% of span Ambient Temperature Operating Range: 70mA units, –40 to +80 °C (–40 to +176 °F) 200mA units, –20 to +65 °C (–4 to +149 °F) Ambient Temperature Effect: ±0.03% of output per °C change,...