Temperature Controllers
Time and Temperature Profiling (Ramping)
SERIES F4 Ramping Controllers (Offer Programming Ease)
Multi-Loop Temperature Controllers
Auto-Tuning
Watlow's agency approved Auto-Tuning temperature controllers automatically set PID (Proportional, Integral, Derivative) parameters. Manual settings permit on-off, P (Proportional), PI (Proportional, Integral), PD (Proportional, Derivative) or PID (Proportional, Integral, Derivative) control modes.
Available in 1/32, 1/16, 1/8 and 1/4 DIN (Deutsche Industrial Norm) panel mount sizes, as well as DIN (Deutsche Industrial Norm) rail mount packages. Select models have percent power mode, data communications and more. All accept a broad range of standard IO (Input Ouput) options. NEMA (National Electrical Manufactures Association) 4X front panels on 1/8 DIN (Deutsche Industrial Norm) and smaller controllers. All Watlow's Auto-Tuning controllers withstand harsh industrial environments for CONTROL CONFIDENCE®.
Click text in the table below under Controller heading to view user manuals in PDF format.
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| Controller | DIN Size | Accuracy | Operating Environment |
| MICRODIN® | Rail-Mounted | 0.1% | 32-149 °F (0-65 °C) |
| SERIES SD3 | 1/16 | 0.1% | 32-149 °F (0-65 °C) |
| SERIES 96 | 1/16 | 0.1% | 32-149 °F (0-65 °C) |
| SERIES SD4 | 1/32 | 0.25% | 32-149 °F (0-65 °C) |
| SERIES SD6 | 1/4 | 0.1% | 32-149 °F (0-65 °C) |
| SERIES 988-989 | 1/8 | 0.1% | 32-149 °F (0-65 °C) |
| SERIES SD8 | 1/8 | 0.1% | 32-149 °F (0-65 °C) |
Applications:
- Batch Process
- Electro-plating
- Environmental Chambers
- Food Service Equipment
- Furnaces & Ovens
- Medical & Dental Equipment
- Packaging Equipment
- Plastics Processing
- Pulp & Paper
- Semiconductor Manufacturing
Single-Loop Basic
Watlow's agency approved Single-Loop Basic temperature controllers are ideal for applications where reliability is important. Depending on the specific model, control modes include on-off and percent power. Reliability is further enhanced with a NEMA (National Electrical Manufactures Association) 4X front panel or totally enclosed electronics. All withstand harsh industrial environments for CONTROL CONFIDENCE®.
The SERIES 102, SERIES 103 and SERIES 104 are UL® (Underwriter's Laboratories, Inc.) 873 listed and provide economical on-off or limit control for direct or reverse acting applications.
| Controller | DIN Size | Accuracy | Operating Environment |
| SERIES CF | Panel-Mounted | 1% | 30-130 °F (0-55 °C) |
| SERIES CV | 1/16 | 1% | 32-131 °F (0-55 °C) |
| SERIES TM | Rail-Mounted | 1% | 32-131 °F (0-55 °C) |
| SERIES 104 | Open-Boarded | 1% | 32-131 °F (0-55 °C) |
Applications:
- Food Service Equipment
- General Process Control
- Percent Power & Open Loop Control
- Plastics & Textile Processing
- Heat or Cool Control
- HVAC Instruments
Time and Temperature Profiling (Ramping)
Watlow's agency approved Time and Temperature Profiling (Ramping) controllers set new performance standards. Ideal for applications that change temperature over time. PID (Proportional, Integral, Derivative) auto-tuning makes set-up easy.
Available in 1/4, 1/8 and 1/16 DIN (Deutsche Industrial Norm) versions, they meet virtually all single-loop ramping requirements. All come with industry standard IO (Input Ouput) and communication options. All Watlow's Time and Temperature Profiling (Ramping) controllers withstand harsh industrial environments for CONTROL CONFIDENCE®.
| Controller | DIN Size | Accuracy | Operating Environment |
| SERIES F4 | 1/4 | 0.1% | 32-130 °F |
| SERIES 942 | 1/4 | 0.1% | 32-149 °F |
| SERIES 981-982 | 1/8 | 0.1% | 32-130 °F |
Applications:
- Environmental Chambers
- Complex Process Furnaces
- Any Process (that changes variables over time)
- Semiconductor Manufacturing
- Processes (needing data logging)
- Processes (requiring valve or position slide wire control)
Limits and Alarms
Watlow's Limits and Alarms controllers can provide UL® (Underwriter's Laboratories, Inc.), CSA (Canadian Standards Association), A.G.A. and FM (Factory Mutual) approved safety limit control. All accept industry standard IO (Input Ouput) options.
The 1/4 DIN (Deutsche Industrial Norm) SERIES 945 provides data communications and relay outputs. All Watlow's Limits and Alarms controllers withstand harsh industrial environments for CONTROL CONFIDENCE®.
| Controller | DIN Size | Accuracy | Operating Environment |
| SERIES 94 | 1/16 | 0.1% | 32-149 °F (0-65 °C) |
| SERIES 97 | NA | 0.1% | 32-149 °F (0-65 °C) |
| SERIES LF | NA | 0.1% | 32-130 °F (0-54 °C) |
| SERIES LV | 1/16 | 1% | 32-131 °F (0-55 °C) |
| SERIES SD3L | Rail-Mounted | 1% | 32-131 °F (0-55 °C) |
| SERIES SD4L | Open-Boarded | 1% | 32-131 °F (0-55 °C) |
| SERIES SD6L | Open-Boarded | 1% | 32-131 °F (0-55 °C) |
| SERIES SD8L | Open-Boarded | 1% | 32-131 °F (0-55 °C) |
| SERIES 945 | 1/4 | 0.1% | 32-149 °F (0-65 °C) |
SERIES F4 Controllers
You'll find a Watlow DIN (Deutsche Industrial Norm) process, ramping or simple PID (Proportional, Integral, Derivative) auto-tune controller that's just right for your application, from the most complicated process to the most limited budget.
SERIES F4 Process Controller
Meets complex processing demands but is easy to use
The SERIES F4 Process Controller 1/4 DIN (Deutsche Industrial Norm) has the performance and features to meet a wide range of industrial processing needs, including semiconductor manufacturing, plastic processing and packaging.
This competitively priced controller features a four line, high definition LCD interface display along with a Watlow exclusive information key that makes set-up and control operation significantly easier with less chance for error. A 16-bit microprocessor provides accurate and precise control. Complex control applications such as cascade, ratio and differential control will be handled with the future release of optional enhanced hardware and software features.
The four digital inputs can be used to remotely modify the operation of the controller or enable the display of custom pre-defined operator messages. Serial communication and dual alarm relays are included in the base unit.
The SERIES F4 Process Controller is NEMA (National Electrical Manufactures Association) 4X rated to withstand harsh environments. A four-inch deep case makes the F4 ideal for shallow enclosures. Installation is simplified with touch-safe removable connectors. Expandable modular construction makes the F4 easy to up-grade in the field.
The SERIES F4 Process Controller is manufactured by ISO 9001 registered Watlow controls and is backed with a three-year warranty. There is a four-day availability on all standard models in quantities of 20 or less.
Features:
- High Definition Four Line LCD Interface Display
- High Performance 16-bit Microprocessor
- Multiple PID Sets
- Information Key
- Cascade Control
- Menu Customization
- Full Featured Alarms
- Update Rates 20 Hz
- Calibration Accuracy 0.1%
- Serial Communications
- Digital Inputs
- Universal Analog Inputs
- Retransmit Outputs
- Panel Depth (less than four inches behind)
- Expandable Modular Construction
- Software Guided Set-up
Benefits:
- Precise Process Control
- Application Versatility
- Field Up-gradable
SERIES F4 Ramping Controllers (Offer Programming Ease)
Simple, yet powerful
The SERIES F4 Ramping Controllers (Offer Programming Ease) 1/4 DIN (Deutsche Industrial Norm) is easy-to-set-up and operate solution for the most demanding ramp and soak applications. The features and performance of these units make them ideally suited for environmental chamber or furnace and oven applications. Single and dual channel versions support extremely accurate temperature and humidity control.
These competitively priced controllers feature a four line, high definition LCD interface display that makes profile programming and controller configuration significantly faster and easier. A 16-bit microprocessor supports all the accuracy and performance advantages you have come to expect from a Watlow control.
Guided up to 256 steps can be programmed into as many as 40 namable profiles. Profiles can be programmed to wait for events or for up to three different process variables. A guaranteed soak feature allows you to set how closely your process needs to be controlled.
The four digital event inputs can be programmed to remotely start, pause or terminate any of your pre-programmed process recipes. The eight event outputs are segment programmable, or three of them can be assigned to programmable compressor and boost heat or boost cool control. A real time clock can be used to start a profile at any time. Serial communication and dual alarm relays are included in the base unit.
The SERIES F4 Ramping Controllers (Offer Programming Ease) are packaged with a NEMA (National Electrical Manufactures Association) 4X front face to withstand harsh environments and a four inch deep case with removable connectors for wiring convenience.
Features:
- Guided up to 256 Steps (with 40 profile ramp & soak programmable memory)
- High Definition Four Line LCD Controller Interface Display
- High Performance 16-bit Microprocessor
- Enhanced Environmental Chamber Control
- Cascade Control
- Menu Customization
- Universal Inputs
- Expandable Modular Construction
- Real Time Clock (with battery backup)
Benefits:
- Supports Wide Range of Processing Applications
- Enhanced Process Monitoring
- Precise Process Control
- Precise Two Variable Control
- Application Versatility
- Operational Flexibility
- Supports (humidity, compressor & boost heat or boost cool control)
- Simplifies Set-up & Operation
- Field Up-gradable
Dual-Loop
Watlow's agency approved Dual-Loop, auto-tuning temperature controllers automatically set PID (Proportional, Integral, Derivative) control parameters. Manual settings permit on-off, P (Proportional), PI (Proportional, Integral), PD (Proportional, Derivative) or PID (Proportional, Integral, Derivative) control modes.
Data communications, remote operation and data logging available. All accept industry standard IO (Input Ouput) options. NEMA (National Electrical Manufactures Association) 4X front panel on the SERIES 998. All Watlow's Dual-Loop controllers withstand harsh industrial environments for CONTROL CONFIDENCE®.
| Controller | DIN Size | Accuracy | Operating Environment |
| MINICHEF® | NA | 2 ºF | 32-176 °F (0-80 °C) |
| SERIES 733-734 | NA | 0.1% | 32-176 °F (0-80 °C) |
| SERIES 998-999 | 1/8 | 0.1% | 32-149 °F (0-65 °C) |
Applications:
- Any Process (requiring two control loops)
- Food Service Equipment
- Complex Process Furnaces
- Environmental Chambers
- Processes (requiring control & monitoring from a computer)
Multi-Loop Temperature Controllers
4-48 Loop
Watlow's Multi-Loop Temperature Controllers deliver the performance demanded by complex process applications. There are up to 48 control loops. Each controller accepts industry standard IO (Input Ouput) options with 0.05% of span accuracy. Inputs can be mixed; including thermocouple, RTD (Resistance Temperature Detector) and process.
Multiple job or recipe storage makes batch set-ups fast. Auto-tuning sets PID (Proportional, Integral, Derivative) parameters. Versatile alarms, serial communications, on-line trending and report data round off the features. Optional ANASOFT® PC software permits remote operation and monitoring via MS-DOS compatible PCs.
| Controller | DIN Size | Accuracy | Channel Scan Time | |
| 4-Loop | 4 CLS | 1/4 | 0.05% (25 °C) | 0.15 s |
| 8-Loop | 8 CLS | 1/8 | 0.05% (25 °C) | 0.33 s |
| 8 LS | 1/4 | 0.05% (25 °C) | 0.50 s | |
| 16-Loop | 16 CLS | 1/8 | 0.05% (25 °C) | 0.67 s |
| 16 MLS | 1/8 | 0.05% (25 °C) | 1.00 s | |
| 32-Loop | 32 MLS | 1/8 | 0.05% (25 °C) | 2.00 s |
| Alarm Scanner and Data Logger | CAS | 1/8 | 0.05% (25 °C) | 0.67 s |
| Alarm Scanner and Data Logger | TLM | 1/8 | 5% | 0.50 s |
Applications:
- Any Process (requiring multiple control loops)
- Complex Process Furnaces
- Environmental Chambers
- Processes (requiring control & monitoring from a computer)
- Processes (measuring carbon potential)
PPC-2000 Process Controller
The PPC-2000 Process Controller is a high performance controller which integrates easy-to-set-up multi-loop process and programmable logic control (PLC) in a modular, extensible package.
48 Channels of PID (Proportional, Integral, Derivative) Control
Precisely control a large number of temperature zones and process loops with a single controller. Choose heat, cool or heat-cool for any zone.
Scalable Hardware Platform
Size the controller to fit your application. Minimize unused IO (Input Output).
Auto-Tuning
Rely on built-in firmware functions to optimize PID (Proportional, Integral, Derivative) settings on any combination of loops.
High-Density Mixed-Type Analog Inputs
Lower your costs by measuring different types of thermocouple and analog signals with one module. Measure up to 32 analog inputs from the same module.
High-Density Flexible IO (Input Ouput)
Efficiently utilize panel space. Change a digital input to an output or vice versa without adding hardware.
2 Built-in Communication Ports
Monitor and change controller settings from two separate hosts. Take advantage of a wide variety of Modbus™ RTU products to design or purchase your own interface.
DZC Heater Control
Reduce maintenance costs by extending heater life.
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