Dwyer Instruments / Love Controls 16A2122-948 Temperature/Process Controller

The Dwyer Instruments/Love Controls 16A2122-948 is a 1/16 DIN microprocessor-based temperature and process controller designed for precise monitoring and regulation in industrial applications. It features universal input selectivity, dual LED displays, and multiple control algorithms including On-off, P, PI, PID, Self-Tune PID, and Fuzzy Logic. The unit supports thermocouple, RTD, DC voltage, and DC current inputs with ±0.25% of span ±1 least significant digit accuracy. ## Technical Specifications • Model: 16A2122-948 (16A Series) • Input Types: Universal, selectable thermocouple, RTD (JPt 100, Pt 100, Ni 120, Cu 50), DC voltage, or DC current • RTD Input Ranges: JPt 100 -4 to 752°F (-20 to 400°C); Pt 100 -328 to 1562°F (-200 to 850°C); Ni 120 -112 to 572°F (-80 to 300°C); Cu 50 -58 to 302°F (-50 to 150°C) • Display: Dual four-digit LED, 0.3 in (7.62 mm) digit height, 1° or 0.1° resolution (sensor dependent) or 1 count • Measurement Accuracy: ±0.25% of span ±1 least significant digit • Power Supply: 100–240 VAC nominal (+10% -15%, 50–400 Hz) or 132–240 VDC (+10% -20%); 5 VA maximum consumption • Operating Temperature: 14 to 131°F (-10 to 55°C) • Enclosure: NEMA 4X (IP66) front panel, waterproof and corrosion-resistant • Mounting: 1/16 DIN panel mount, 45 mm × 45 mm cutout, 117 mm (4.6 in) depth • Weight: 8 oz (227 g) ## Control & Output • Control Functions: On-off, P, PI, PID manual tune, Self-Tune PID, Fuzzy Logic • SSR Output: 2.0 A @ 240 VAC (77°F/25°C), derated to 1.0 A @ 130°F (55°C); DC SSR 1.75 A @ 32 VDC maximum • Relay Output: 3 A @ 240 VAC resistive, 1.5 A @ 240 VAC inductive; 250 VA pilot duty @ 2 A/120 VAC or 1 A/240 VAC • Alarm Relay: 3 A @ 240 VAC resistive, 1.5 A @ 240 VAC inductive; 240 VA pilot duty • Switched Voltage: 15 VDC @ 20 mA • Proportional Current Output: 0 to 20 mADC scalable into 600 Ω maximum ## Communications & Options Optional serial communications via RS-232 or RS-485 with LoveLink™ or Modbus® RTU protocol. Four-stage setpoint selection and alternate 12–24 Vdc/Vac power supply available.