- Official UK and Ireland channel partner
- UK technical support available
- Model selection and configuration support
Dwyer Series 16G/8G/4G Dual-Loop Temperature and Process Controllers
Choose 1/16, 1/8 or 1/4 DIN temperature and process control with universal input, dual-output operation and standard RS-485.
Key highlights
- Sizes: 1/16, 1/8 or 1/4 DIN
- Inputs: Thermocouple, RTD, voltage or current
- Control: On/off, PID, fuzzy logic or manual
- Outputs: Two control outputs plus two alarm relays
- Functions: Ramp/soak and standard RS-485 Modbus
The Dwyer Series 16G/8G/4G family combines one temperature and process-control platform with three panel formats. Select the compact 1/16 DIN 16G, vertical 1/8 DIN 8G or larger 1/4 DIN 4G to suit the available panel space and preferred operator-panel layout.
A single universal process input accepts supported thermocouples, resistance sensors and analogue signals. The two primary output groups can operate around the same measured value and setpoint for heating, cooling or paired heat/cool duties; the dual-loop name does not indicate two independent measurement inputs.
On/off, PID, fuzzy-logic and manual output control cover a range of regulation duties. Auto-tune and Self-tune support PID setup, while fixed, sloped and ramp/soak setpoint modes provide different ways to manage the process profile.
Output and auxiliary hardware are selected in the product code. Each primary output can be specified as relay, 12 VDC voltage pulse, 4-20 mA current or 0-10 V linear voltage. Optional hardware can add remote setpoint, event input, process-input retransmission output or current-transformer input functions, and RS-485 Modbus ASCII/RTU is standard.
The family suits ovens, packaging equipment, parts washers and compatible OEM or industrial process-control duties. Selection should account for panel format, input curve or signal, output hardware and load, control assignment, optional functions, supply and communications requirements.
Key Features
- Three panel formats: Choose Series 16G, 8G or 4G for 1/16, 1/8 or 1/4 DIN installation
- Universal process input: Configure one input for a supported thermocouple, resistance sensor or analogue signal
- Dual-output operation: Assign two primary output groups for heating, cooling or paired heat/cool control around one process value
- Control choices: Select on/off, PID, fuzzy-logic or manual output control to suit the application
- PID tuning: Use Auto-tune or Self-tune functions to support PID parameter setup
- Setpoint control: Apply fixed, slope or ramp/soak programmes, with remote setpoint available through optional hardware
- Model-selected hardware: Match both primary outputs and the auxiliary functions to the application before ordering
- Standard communications: Integrate through RS-485 using Modbus ASCII or RTU
Specifications
| Series Selection | |
| Series 16G | 1/16 DIN; nominal 48 x 48 mm front; 45 x 45 mm panel cut-out |
| Series 8G | 1/8 DIN; nominal 48 x 96 mm front; 44.5 x 91.5 mm panel cut-out |
| Series 4G | 1/4 DIN; nominal 96 x 96 mm front; 91 x 91 mm panel cut-out |
| Principal distinction | Panel size and cut-out; the input, control, output-selection and communications platform is common to all three series |
| Inputs and Measurement | |
| Input architecture | One universal process input for thermocouple, resistance sensor, DC voltage, DC current or millivolt signal |
| Thermocouple types | K, J, T, E, R, S, B, L and U |
| Thermocouple ranges | K: -200 to 1300°C; J: -100 to 1200°C; T: -200 to 400°C; E: 0 to 600°C; R/S: 0 to 1700°C; B: 100 to 1800°C; L: -200 to 850°C; U: -200 to 500°C |
| Resistance inputs | Pt100: -200 to 850°C; JPt100: -20 to 400°C; Ni120: -80 to 300°C; Cu50: -50 to 150°C |
| Analogue inputs | 0-5 V, 0-10 V, 0-20 mA, 4-20 mA or 0-50 mV |
| Accuracy | ±1°C plus ±0.3% of span at 25°C after a 20-minute warm-up |
| Input sampling | 0.1 seconds per scan |
| Control and Programming | |
| Control methods | On/off, PID, fuzzy logic or manual output control |
| PID tuning | Auto-tune or Self-tune functions for PID parameter setup |
| Dual-output control | Two primary outputs assignable for heating/heating, cooling/cooling, heating/cooling or cooling/heating around one measured process value and setpoint |
| Setpoint modes | Fixed, slope or programme; remote setpoint available with compatible optional hardware |
| Ramp/soak programme | 16 patterns with up to 16 steps per pattern, with pattern linking and repeat functions |
| Alarm functions | Two standard alarm relays; output 2 can instead be assigned as a further alarm output in a compatible configuration |
| Memory | Non-volatile configuration memory |
| Outputs and Optional Functions | |
| Primary outputs | Two output positions; each selected as voltage pulse, relay, 4-20 mA current or 0-10 V linear voltage in the product code |
| Control relay | SPST, rated up to 5 A at 250 VAC resistive; confirm the permitted load for the selected unit and output position before direct switching |
| Voltage-pulse output | 12 VDC, 40 mA maximum |
| Current output | 4-20 mA; 500 ohm maximum load |
| Linear-voltage output | 0-10 VDC |
| Alarm relays | Two relay outputs, each rated 3 A at 250 VAC resistive |
| Optional functions | Event input, remote setpoint input, process-input retransmission output or current-transformer input; available combinations depend on the selected product code |
| Communications, Display and Power | |
| Communications | RS-485 with Modbus ASCII or RTU; standard on all models |
| Baud rates | 2400, 4800, 9600, 19,200 or 38,400 bit/s |
| Display | Four-digit process-value LCD in orange and four-digit setpoint LCD in green; 12 mm character height |
| Standard supply | 100-240 VAC, -20/+8%, 50/60 Hz |
| Low-voltage supply | 24 VDC, ±10%, selected by product code |
| Power consumption | 5 VA maximum |
| Mechanical and Environmental | |
| Mounting | Panel mounting; open-type controller behind the front panel |
| Terminal arrangement | 16G uses its own 18-terminal layout; 8G and 4G use the common 24-terminal layout shown in the manufacturer guide |
| Front-panel rating | IP66 |
| Operating temperature | 0 to 50°C |
| Storage temperature | -20 to 65°C |
| Ambient humidity | 35 to 80% RH, non-condensing |
| 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 16G, 8G and 4G family.
- Model selection: Support matching the DIN size, input, two output groups, supply and panel cut-out
- Option compatibility: Checks for dual-output duty, alarms, remote setpoint, event input, retransmission output, CT input and RS-485 integration
- Installation support: Advice on sensor or transmitter input, output loading, panel mounting and front-panel protection
- Documentation support: Help with the datasheet, quick-start guide, programming manual, configuration records and replacement requirements
Accessories
- A-600 R/C snubber for relay-controlled contactor or solenoid coils
- A-900 front-mount or A-901 internal-mount weatherproof enclosure; confirm compatibility with the selected panel format
- MN-1 Mini-Node USB/RS-485 converter for the standard RS-485 interface
- SCD-SW configuration software for compatible Series G setup