FLOW 179 ANALOG SIGNAL TRANSMITTER MODELS 500 / 550 DESCRIPTION The Model 500/550 Analog Transmitters are pulse to 4-20 mA current converters. They are normally used as a loop-powered device for use with all Data Industrial Non-magnetic Flow Sensors. They have two frequency span ranges (high and low) to provide for high resolution of the 4-20 mA signal to a specific flow range. FEATURES 5 • User-adjustable scale -- The user can select the resolution of the 4-20 mA signal from the ranges of the various pipe size configurations. • Maximum signal resolution - To maximize the reso- lution of the 4-20 mA signal, the 4 mA value can be set to values other than zero. The 20 mA value can also DIMENSIONS be adjusted to reflect the minimum or maximum range of flow required to interface to other equipment with in the analog signal. 4.7 (cm) (11.9) • Power supply options - The Model 500/550 is nor- mally loop-powered, drawing the necessary power Mounting from the loop itself. If there is no loop-power an Holes (4) independent power supply is available from #6 PANHEAD SCREWS or 1.97 3.15 #8 ROUNDHEAD Gasket Seal Kele & Associates. (5.0) (8.0) • Mounting options - The Model 500 is enclosed in a Cover NEMA 4 waterproof enclosure. The Model 550 is Holes (4) available as an open-chassis circuit board for mount- ing inside another panel or enclosure. 4.25 (10.8) Cover 2.15 0.57 (5.4) Enclosure Body (1.4) SPECIFICATIONS Operating range 4-20 mA loop output, 0-110 Hz square- Operating temp wave frequency input range 32° to 131°F (0° to 55°C) Loop voltage 10 VDC minimum, 35 VDC maximum Storage temp range -40° to 158°F (-40° to 70°C) Linearity ArchivedBetter than 1% DocumentConformal coating Circuits are coated with a clear color- Electrical Meets ISA requirement, Classes L, H, less coating that meets Milspec Mil- and U. Non isolated 146058C, Type AR, for humidity, Load resistance Max 650 ohms @ 23 volts moisture and fungus resistance. Power requirements 4-20 mA loop voltage or 10 VDC min Enclosure Polycarbonate with tongue / groove 35 VDC max neoprene sealed cover for water-tight Device output ripple Less than 0.25% of full scale for a fully integrity. Meets NEMA 1, 2, 3, 4, 4X, stable sensor input 5, 12, and 13 specifications Output response time Six seconds (typ.), 10-90% step response KELE & ASSOCIATES • P O Box 34817 • Memphis, TN 38184 • 901-382-4300 • FAX 901-372-2531 180 FLOW ANALOG SIGNAL TRANSMITTER MODELS 500 / 550 APPLICATION Typical examples of the kinds of systems and equipment requiring a flow signal proportional to 4-20 mA are: The Model 500/550 is intended for use with any device • Chemical feed systems that requires a 4-20 mA input signal; to log or display flow • Batch control systems rate; or as the input to a flow based process control sys- • Mixing /blending systems tem, PLC or CPU. • Data logger systems • SCADA and recorder systems • Energy management systems • Btu measuring systems 5 • Irrigation control systems • Heat exchanger systems WIRING CAL RANGE CAL SPAN OFFSET 1 2 3 4 O LOW N HIGH POTS SWITCHES TERMINAL 6 5 4 3 2 1 STRIP SHLD BARE GND BLK SIG RED CONTROLLER NOTE: TERMINAL #4 IS NOT USED WITH THE 200 SERIES FLOW SENSOR. CALL KELE & ASSOCIATES FOR INPUT APPLICATION OF THE 500/550 WITH THE 4000 SERIES FLOW SENSOR. 200 24 VDC SERIES FLOW POWER SENSOR SUPPLY ArchivedORDERING INFORMATION Document 500-10 Transmitter in NEMA 4 housing 550-10 Unhoused circuit board only Note: Pipe size and schedule, and maximum flow rate must be specified at time of order. KELE & ASSOCIATES • P O Box 34817 • Memphis, TN 38184 • 901-382-4300 • FAX 901-372-2531.