- Official UK and Ireland channel partner
- UK technical support available
- Model selection and configuration support
Dwyer Series 16A Temperature and Process Controller
Control temperature or analogue process variables with a compact 1/16 DIN controller, universal input and self-tuning PID.
Key highlights
- Platform: 1/16 DIN 16A2 or 16A3
- Inputs: Thermocouple, RTD, voltage or current
- Control: On/off, P, PI or PID with Self-Tune
- Outputs: Relay, SSR, 15 VDC pulse or current by model
- Front panel: NEMA 4X/IP66 rated
The Dwyer Series 16A is a compact 1/16 DIN temperature and process controller for enclosed-panel installations. Its universal input can be configured for supported thermocouples, RTDs, DC voltage or DC current signals, allowing one platform to regulate temperature or a compatible transmitter signal.
Control can be configured for on/off, proportional, PI or PID operation. Self-Tune PID and Fuzzy Logic functions help establish and refine control response, while dual four-digit LED displays show the process value and setpoint.
16A2 and 16A3 identify the controller feature set. The 16A2 provides the standard functions; the 16A3 adds 16-segment ramp/soak programming and auto/manual output operation. Alarm provision and the output A/output B hardware are defined by the selected model.
Optional configurations include process-value or setpoint retransmission, RS-232 or RS-485 communications using LoveLink or Modbus RTU, and a low-voltage supply. These are ordering options rather than standard functions and must be matched to the required interface and controller model.
The Series 16A suits ovens, process heating, plastics equipment, food and beverage machinery, wastewater applications and heat tracing. Correct selection depends on input type and range, control function, output type and load, alarm requirement, supply, communications and panel installation.
Key Features
- Universal input: Configure the controller for a supported thermocouple, RTD or analogue process signal
- Flexible control: Select on/off, proportional, PI or PID operation with direct or reverse action
- Self-Tune and Fuzzy Logic: Built-in functions support PID setup and response adjustment
- Two feature levels: Choose 16A2 for standard control or 16A3 for ramp/soak and auto/manual operation
- Model-selected outputs: Match relay, SSR, 15 VDC pulse, proportional current or DC SSR hardware to the load
- Optional integration: Specify retransmission or RS-232/RS-485 communications where required
- Operator visibility: Dual four-digit LED displays show process value and setpoint
- Protected front: NEMA 4X/IP66 front-panel rating supports correctly mounted industrial panels
Specifications
| Inputs and Measurement | |
| Input types | User-selectable thermocouple, RTD, DC voltage or DC current |
| Thermocouple types | K, J, T, E, R, S, B and L; confirm compatibility before specifying W, U, C or N |
| RTD types | Pt100 and Ni120; confirm the required resistance curve and measurement range before selection |
| Analogue inputs | 0-20 mA, 4-20 mA and 0-10 V supported; confirm other voltage ranges before selection |
| Process-input scaling | -1999 to 9999 counts; decimal-point position selectable |
| Accuracy | ±0.25% of span ±1 least significant digit |
| Display resolution | 1° or 0.1° where supported by the sensor range; one count for process inputs |
| Control and Programming | |
| Control modes | On/off, proportional, PI or PID |
| PID functions | Self-Tune PID with adjustable Fuzzy Logic functions |
| Control action | Direct or reverse |
| 16A2 feature code | Standard Series 16A control functions |
| 16A3 feature code | Standard functions plus 16-segment ramp/soak programming and auto/manual output operation |
| Alarm | Optional programmable relay, selected within the model code |
| Security and memory | Four password-protected access levels; non-volatile configuration memory |
| Outputs and Model Selection | |
| Output configuration | Output A and output B are selected within the model code; output B can be omitted |
| Output choices | Solid-state relay, 15 VDC pulse, normally open or normally closed relay, proportional current or DC solid-state relay |
| AC SSR rating | 2.0 A combined across outputs A and B at 240 VAC resistive and 25°C; derates to 1.0 A at 55°C; 100 mA minimum load |
| DC SSR rating | 1.75 A at 32 VDC maximum |
| Relay rating | SPST, 3 A at 240 VAC resistive or 1.5 A at 240 VAC inductive |
| Voltage-pulse output | 15 VDC at 20 mA |
| Proportional-current output | 0-20 mA, scalable; 600 ohm maximum load |
| Alarm-relay rating | SPST, 3 A at 240 VAC resistive or 1.5 A at 240 VAC inductive |
| Process retransmission | Optional isolated 0-20 mA (-934) or 0-10 V (-936), selectable for process value or setpoint |
| Display, Communications and Power | |
| Display | Two four-digit LED displays, 7.62 mm high, for process value and setpoint |
| LoveLink communications | Optional RS-485 (-992) or RS-232 (-993) |
| Modbus RTU communications | Optional RS-232 (-995) or RS-485 (-996) |
| Standard supply | 100-240 VAC nominal, 50-400 Hz, or 132-240 VDC |
| Low-voltage supply | 12-24 VAC/VDC with option -9502 |
| Power consumption | 5 VA maximum |
| Mechanical and Environmental | |
| Panel format | 1/16 DIN, nominal 48 x 48 mm front |
| Panel cut-out | 45 x 45 mm, +0.6/-0.0 mm |
| Depth behind panel | 121.6 mm maximum |
| Mounting | Enclosed-panel mounting |
| Front-panel rating | NEMA 4X/IP66 when correctly mounted |
| Operating temperature | -10 to 55°C |
| Storage temperature | -40 to 80°C |
| Humidity | 0-90% RH up to 40°C; 10-50% RH at 55°C; non-condensing |
| Weight | 8 oz |
| Compliance | |
| Agency approvals | UL E83725; CE |
Support
Able Instruments are an official UK and Ireland channel partner for DwyerOmega, providing application advice, configuration support and quotation assistance for the Series 16A family.
- Model selection: Support matching the 16A2 or 16A3 feature set, input, outputs, alarm, supply and panel requirements
- Option compatibility: Checks for retransmission, communications interface and protocol, low-voltage supply and relevant accessories
- Installation support: Advice on sensor or transmitter input, output integration, panel mounting and front-panel protection
- Documentation support: Help with the catalogue sheet, service manual, configuration records and replacement requirements
Accessories
- A-600 R/C snubber
- MN-1 Mini-Node USB/RS-485 converter for compatible RS-485 configurations