Model 354 • Pump Controller, Four Relay, 4-20 mA Features Available for mounting in Delta Controls housings or in enclosures by others Housings may be surface or pipe stand mounted Optional direct reading LCD display Accepts 4-20 mA dc signal from any type transmitter; 2, 3 or 4-wire Supplies DC power for 2-wire loops and for 3 or 4-wire transmitters Optional pump control functions Lead/lag control Relay operate time delays Two alarm points Built-in loop power supply Selectable starting time delay Self checking diagnostic routine Continuous setpoint indication Optional explosion-proof housing Image to Come Model 354 Specifications General Type: Supply Power: Input Range: Relays: Basic Switching Action: Description The Delta Controls Model 354 Pump Controller is operated as an alarm and/or adjustable differential level controller. Model 354 has two relays each featuring an individual 0–100% on and 0–100% off setpoint. It accepts a 4-20 mA dc input signal which is proportional to some process variable, usually level. The Model 354 is microprocessor based and checks its input signal loop for integrity. The relays may be set up for direct or reverse fail-safe action. The 354 is equipped with a built-in loop power supply and accepts remote powered 4-20 mA signal. The input signal wiring may be equipped with an electrical barrier. The 354 must be located in a safe area and input signal wires may extend into the ignition hazard area through a suitable barrier. Features, such as lead/lag pump rotation, time delay starting, and alarms may be programmed in the field. Up to two pumps or alarm points can be controlled can be actuated from a single 354 pump controller. The optional Model 328 3.5 digit LCD readout display, may be field calibrated for engineering units. 246 | Pump Controllers & Accessories > Model 354 | deltacnt.com Accuracy: Transmitter Loop Power Supply: Multiple Pump Control: Temperature Range: Housing Rating: Microprocessor based 120 ACV , 240 ACV, 50 Hz, 60 Hz, 24 DCV ± 15% variation 4-20 mA 4,10 A at 250 ACV SPDT Adjustable differential for on/off control 0.1% of full scale 24 DCV Selectable lead/lag, rotation of up to 4 pumps -20 °F to +170 °F (-20 °C to +77 °C) Classes 1 & 2, Divisions 1 & 2, Groups ABCD, EFG