- Official UK and Ireland channel partner
- UK technical support available
- Model selection and configuration support
Dwyer Series 16B Dual-Loop Temperature and Process Controller
Control temperature or analogue process variables with a compact 1/16 DIN controller, dual-output heat/cool control and standard RS-485.
Key highlights
- Format: 1/16 DIN with two control outputs
- Inputs: Thermocouple, RTD, voltage or current
- Control: On/off, PID or manual
- Programming: Up to 64 ramp/soak steps
- Integration: RS-485 Modbus ASCII/RTU standard
The Dwyer Series 16B is a compact 1/16 DIN temperature and process controller with one universal measurement input and two hardware control outputs. DwyerOmega’s dual-loop arrangement assigns the outputs to heating and cooling around the same process value and setpoint; it is not a two-input controller.
The universal input can be configured for supported thermocouples, Pt100 or JPt100 RTDs, or compatible DC voltage and current signals. Dual four-digit LED displays show the process value and setpoint for clear local operation.
On/off, PID and manual output control cover common regulation duties. Automatic tuning supports PID setup, while the separate ramp/soak programme provides up to 64 steps for processes that require controlled setpoint changes over time.
Output hardware is selected with the model. Output 1 can be specified as a 14 VDC voltage-pulse, relay, 4-20 mA or 0-10 V output; output 2 is a relay in the standard model combinations. RS-485 with Modbus ASCII or RTU is standard, while the supply is selected as 100-240 VAC or 24 VDC.
The Series 16B suits ovens, boilers, chillers, environmental chambers, hot plates, melt pots, packaging equipment and compatible process-control duties. Selection should account for the input signal and range, heat/cool assignment, output hardware and load, alarm use, supply and panel installation.
Key Features
- Universal input: Configure the controller for a supported thermocouple, RTD or analogue process signal
- Dual-output heat/cool control: Assign outputs 1 and 2 to heating and cooling around one measured process value and setpoint
- Control choices: Select on/off, PID or manual output control for the required regulation duty
- PID tuning: An automatic tuning function helps establish PID parameters for the application
- Ramp/soak programming: Build up to eight patterns of eight steps for a maximum of 64 programmed steps
- Model-selected outputs: Match relay, 14 VDC voltage pulse, 4-20 mA or 0-10 V hardware to the interface and load
- Alarm flexibility: Dedicated alarm relay, with output 2 available for an additional alarm function when not used for dual-output control
- Standard communications: Integrate through RS-485 using Modbus ASCII or RTU
Specifications
| Inputs and Measurement | |
| Input types | User-selectable thermocouple, RTD, DC voltage, DC current or millivolt signal |
| Thermocouple types | K, J, T, E, W, R, S, B, L and U |
| RTD types | Pt100 and JPt100 |
| Analogue inputs | 0-5 V, 0-10 V, 0-20 mA, 4-20 mA and 0-50 mV |
| Current-input requirement | A-277 250 ohm precision resistor across the input terminals |
| Process-input display range | -999 to 9999 |
| Accuracy | ±0.25% of span ±1 least significant digit |
| Control and Programming | |
| Control modes | On/off, PID or manual output control |
| PID tuning | Automatic tuning function for PID parameter setup |
| Dual-output control | Outputs 1 and 2 assignable to heating and cooling around one process value and setpoint |
| Ramp/soak programme | Eight patterns with eight steps each; up to 64 steps |
| Alarm functions | One dedicated alarm relay; output 2 can provide an additional alarm function when not assigned to dual-output control |
| Memory | Non-volatile configuration memory |
| Outputs and Communications | |
| Output 1 choices | 14 VDC voltage pulse, relay, 4-20 mA current or 0-10 V linear voltage, according to model |
| Output 2 choices | Relay in the standard model combinations; confirm any alternative arrangement before selection |
| Control relay | SPST; permitted load depends on the selected model and output position and must be confirmed before direct load switching |
| Voltage-pulse output | 14 VDC, 40 mA maximum |
| Current output | 4-20 mA; 600 ohm maximum load |
| Linear-voltage output | 0-10 V |
| Dedicated alarm relay | SPST, 3 A at 250 VAC resistive |
| Communications | RS-485 with Modbus ASCII or RTU; standard on all models |
| Display and Power | |
| Display | Two four-digit, seven-segment LED displays; process value red and setpoint green |
| Standard supply | 100-240 VAC, 50/60 Hz |
| Low-voltage supply | 24 VDC, selected by model |
| 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 mm |
| Overall depth | Approximately 80 mm |
| Mounting | Enclosed-panel mounting |
| Front-panel rating | IP56 |
| Operating temperature | 0 to 50°C |
| Storage temperature | -20 to 65°C |
| Weight | Approximately 114 g |
| Compliance | |
| Approvals | CE and cULus |
Support
Able Instruments are an official UK and Ireland channel partner for DwyerOmega, providing application advice, configuration support and quotation assistance for the Series 16B family.
- Model selection: Support matching the input, output 1 and output 2 hardware, supply, alarm use and panel requirements
- Option compatibility: Checks for heat/cool assignment, alarm use, RS-485 integration and relevant accessories
- Installation support: Advice on sensor or transmitter input, output loading, panel mounting and front-panel protection
- Documentation support: Help with the catalogue sheet, operating manual, configuration records and replacement requirements
Accessories
- A-277 250 ohm precision resistor for DC current inputs
- A-600 R/C snubber for relay-controlled contactor or solenoid coils
- MN-1 Mini-Node USB/RS-485 converter for the standard RS-485 interface