Features

• Universal input capability: DC Volts, DC
• Process, Temperature
• Quick and easy front panel input scaling
• Field interchangeable outputs provide
• flexibility and minimize downtime
• Up to 3 alarms, fully configurable for High or Low operation as well as for latching output and combinational logic
• 4-20 mA output can be used to retransmit the process value to a strip chart recorder or PLC
• Min & Max Value Capture provides valuable process information
• NEMA 4/IP65 rated front panel for use in washdown environments
• Transmitter power supply simplifies wiring
• Universal AC power supply

Description

The Dynapar S428A is a new digital panel indicator providing a high contrast, high visibility display, designed for optimal ease of use in a wide variety of process measurement applications. The S428A is fast, accurate and easy to read with a jumperless configuration, plug in output boards and quick and easy setup. The new generation S428AA further provides a new user-selectable dual color display option with fixed red or green displays or a green to red color change when an alarm condition occurs.

Literature Specifications Literature and Technical Information Panel Indicating Controllers S428A Series ++ S428A Series,AC Indicating Controllers| Brochure (114 kB) ++ S428A Series, Manual | (118 kB) Process Input Display; Red/Green, 7 segment LED Primary display: 7 segment LED, 4 digit , 0.53" (13mm) Secondary display: single digit ,0.39" (10mm) Annunciators: LED indicators for output andstatus Front Panel Rating: IEC IP66 (NEMA 4X) front panel IEC IP20 (behind the panel protection) inputs T/C’s: J, T, K, L, N, B, R, S, C; Pt Rh20% vs. Pt 40% Rh RTD: 3-wire, PT100 DC Linear (Scalable –1999 to +9999) Volts: 0-5V, 1-5V, 0-10V, 2-10V DC milliamps: 0-20mA or 4-20mA DC millivolts: 0-50mV, 10-50mV Outputs All outputs are user-selectable and customized based on desired application; choose from the following output types Max # of Outputs: 5 for alarm, 24 VDC transmitter power supply or retransmit of process value Single Alarm Relay: Optional SPDT; 240VAC 2A resistive; Lifetime >500,000 operations at rated voltage/current Dual Alarm Relays: Optional, Two x SPST contacts with shared common. 2 Amp resistive at 240V AC, >200,000 operations. Latching or non-latching SSR Drive: Optional drive capability: >10 VDC nominal into 500 ohm minimum DC Linear: Optional 0-20mA, 4-20mA into 500 ohm max; 0-10V, 1-5V, 2-10V, 0-5V into 500 ohm min; Outputs have 2% over/under drive applied; Accuracy +-0.25% (mA into 250 ohm load, V into 2k ohm load); degrading linearity to +-0.5% for increasing burden to specified limits Triac: Optional 0.01 to 1A AC, 20 to 280Vrms, 47-63 Hz (Limit 2) Transmitter Power Supply: Optional 24 VDC (Limit 1) Output Functions Process Alarm: (reverse or direct) Alarm Modes (Alarm 1 through 5): High/Low, logical OR Retransmit: Process value Electrical Performance Input sample rate: 4 per second, 14 bit resolution Accuracy: ± 0.1% of input range ±1 LSD (T/C CJC better than 1 degree C) Sample Rate: >10M ohm for the thermocouple and mV ranges, 47k ohm for V ranges and 5 ohm for mA ranges Sensor Break Detection: <2 seconds (except zero based DC ranges), high alarms activate for T/C, RTD and mV ranges, low alarms activate for mA or V ranges Sensor Break: Detected within 2 seconds Communication Communication: 2-wire, RS-485 serial communications option with choice of Modbus RTU or Dynapar ASCII protocol; 1200 to 19200 baud Environmental Supply Voltage: 100-240V, 50/60Hz, Optional 20-48VAC 50/60Hz / 22-65VDC Power Consumption: Voltage: 20-28 VDC, 24 VDC nominal; Min. Impedance: 910Ω (22 mA @ 20 VDC) Operating Temp.: 32° to 131°F (0° to 55°C) Storage Temp. -4° to 176°F (-20° to 80°C) Relative Humidity: 20% to 95% non-condensing RH Case Material: GE Lexan 940 Approvals: CE, UR, cUR UL File # 67237 Safety: EN61010 EMC: EN61326 Terminals: Screw type terminals – combination head Weight: 0.46 lbs (0.21 kg) Mounting: Panel mount (mounting bracket supplied), 45mm x 92mm cutout Dimensions: 48mm x 96mm, 100mm deep