Heat Trace Thermostat | Digital Temperature Controller for Hazardous Areas Up to 300°C
Eltherm Heat Trace Thermostat
Offering a measuring range of -40°C up to +300°C, the Eltherm Heat Trace Thermostat is available in two variants, Ex-Box REG/LED and Ex-Box REG/DIS, Hazardous Areas Digital Temperature Controllers designed with an LED display or standard display. Compliant with the latest Ex protection directives, the Eltherm Heat Trace Thermostats are developed especially for temperature maintenance of heat trace systems used in hazardous areas, such as power plants, oil & gas, chemical, petrochemical and pharmaceutical plants, the plastic industry or wastewater treatment plants.
Eltherm’s Digital Temperature Controllers are energy efficient (saving up to 75%), increase safety, reduce maintenance effort, prevent down-times and ensure temperature stability.
Eltherm Heat Trace Thermostat Technical Benefits
- Rugged enclosure IP65
- Programming & operation through integrated interactable smart displays.
- Increased safety, tamperproof, no unauthorised adjustments
- Increased safety through fail alarm
- Integrated heating circuit monitoring
- Operation and programming in hazardous areas up to 300°C
- ATEX & IECEx certified/approved
Thorne & Derrick’s team of heat trace specialists are available to provide effective solutions to your Trace Heating System Design, including intelligent control systems, such as the Ex-Box REG/LED and Ex-Box REG/DIS. As the UK’s largest Heat Trace supplier, our engineered solutions are proven to decrease potential downtime and maximise revenue generation & energy efficiency.
Digital Temperature Controller Technical Specifications
The Eltherm Ex-Box Heat Trace Thermostat range plays a crucial role in the temperature maintenance of trace heating systems, which are used to maintain or raise the temperature of pipes and vessels. Selecting the ideal digital temperature controller for your heat trace operations is crucial to ensure a safe and fail-proof system.
Eltherm Heat Trace Thermostat Hazardous Areas Technical Specifications | |||
Eltherm Ex-Box REG/LED Temperature Controller | Eltherm Ex-Box REG/DIS Temperature Controller | ||
Certificate | IBExU 04 ATEX 1165 X | Certificate | IBExU 04 ATEX 1165 X |
Classification | ll 2G Ex emb [ib] llC T4 Gb ll 2D Ex tb IIIC T100°C Db -32 °C <= Ta <= 60 °C |
Classification | ll 2G Ex emb [ib] llC T4 Gb ll 2D Ex tb IIIC T100 °C Db -32 °C <= Ta <= 60 °C |
Dimensions | 140 x 140 x 150 mm (wxhxd) without wall-mounting bracket, excluding glands |
Dimensions | 140 x 140 x 150 mm (wxhxd) (without wall-mounting bracket, excluding glands) |
Enclosure | Aluminium | Enclosure | Aluminium |
IP Rating | IP 65 | IP Rating | IP 65 |
Ambient Temperature | -32 up to 60 °C | Ambient Temperature | -32 up to 60 °C |
Switching Capacity | 16 A | Switching Capacity | 16 A |
Display | 2 x 4 35-segment LED | Display | 2 x 4 35-segment LED |
Operating Voltage | 230 V +/– 10 % | Operating Voltage | 230 V +/– 10 % |
Nominal Current | Max. 100 mA | Nominal Current | Max. 100 mA |
Load Current, Max. | 16 A (ohm resistive load) | Load Current, Max. | 16 A (ohm resistive load) |
Load Output | 230 V / 16 A, 2-pole | Load Output | 230 V / 16 A, 2-pole |
Alarm Output | Optically separated 100 mA | Alarm Output | Optically separated 100 mA |
Interface | Intrinsically safe for Ex-Connect | Interface | Intrinsically safe for Ex-Connect (bus connection) |
Measurement Input | Pt100 2/3 wire, intrinsically safe | Measurement Input | Pt100 2/3 wire, intrinsically safe |
Measurement Range | -40 °C up to +300 °C | Measurement Range | -40 °C up to +300 °C |
Control Characteristics | Dual mode controller | Control Characteristics | Dual mode controller |
Load Disconnection | 2-phase | Load Disconnection | N/A |
Weight | Approx. 3.5 kg | Weight | Approx. 3.5 kg |
Heat Trace Thermostat Cable Entries
- 1 x M25 for voltage supply (9-13 mm; with add-ons for 11-15 mm)
- 1 x exchangeable panel seal 7-10.5 mm
- 1 x M25 for heating line (2-fold 6 mm)
- 1 x M20 for sensor (tension range 3-4 mm)
- 1 x vent screw M20
Heat Trace Thermostat Applications
Designed for use in explosive atmospheres, the Eltherm Ex-Box REG/DIS and Ex-Box REG/LED devices ensure reliable operation of heating circuits, offering advanced monitoring, control, and alarm functions directly in the field. Whether preventing freezing, maintaining process temperatures, or ensuring safe storage conditions, these controllers play a vital role across a range of demanding industrial applications.
-
Oil & Gas Pipelines
Maintains flow by preventing wax or hydrate formation in hazardous area pipelines. -
Chemical Processing
Ensures stable temperatures for reactive or sensitive chemicals in Ex-rated zones. -
Pharmaceutical Manufacturing
Controls heating for temperature-critical ingredients in cleanroom-classified areas. -
Food & Beverage Production
Keeps materials like syrups or fats at process temperature in flammable environments. -
Water & Waste Treatment
Prevents freezing in exposed pipes and tanks containing water, sludge, or chemicals. -
LNG Storage & Transfer
Manages heating around valves and pipelines to prevent condensation and pressure issues. -
Paints & Adhesives
Maintains viscosity of resins and coatings during storage and transfer in solvent-rich areas.
Eltherm Ex-Control Controller Pad For Ex-Box REG/LED
Eltherm‘s intrinsically safe hand-held controller pad is designed as an additional safety accessory, for use with the LED Ex-Box Heat Trace Thermostats and Limiters range in hazardous areas/explosive atmospheres. The Ex-Control Hand-Held Controller Pad acts as a safer solution to parametrise and query parameters of the REG/LED and LIM/LED Ex-Box devices (not compatible with the Ex-Box REG/DIS Heat Trace Thermostat).
The Eltherm Ex-Control detects the connected device and automatically activates the corresponding software. Ex-Control doesn’t include its own power supply, which is supplied by the connected devices.
Available on request with the Eltherm Ex-Box range.
Hand-held Controller Pad Advantages
- Intrinsically safe control panel
- Does not have its own power supply
- Operation and programming in the Ex-area
Fault Indication
- Sensor short
- Sensor cut
- Excess temperature Pt100
- Low temperature Pt100
- Internal excess temperature
- External bus fault
- Internal bus fault
- Internal hardware fault
- Supply voltage fault
Eltherm Ex-Control Hand-held Controller Pad Technical Specifications | |
Interface | Intrinsically safe for Ex-box LED/LIM |
Cable entry | 1.5 m connection cable with 5-pole plug |
Ambient temperature | -32 to 60 °C |
Display | 2 x 4 35-segment display with backlighting |
Housing material | Aluminium |
Protection | IP 65 |
Dimensions | 135 x 80 x 35mm (WxHxD) |
Weight | approx. 0.5 kg |
Eltherm | Heat Trace Solutions
Expertly Engineered German Heat Trace Solutions
German engineered, UK supplied by Thorne & Derrick, Eltherm manufacture an extensive range of, silicone heating mats, trace heating cables, drum heaters, heating jackets, heating mats, heating mantles, heated hoses, trace heating tool boxes for hazardous areas (ATEX & IECEx certified). Our team of experts are available to provide Custom Eltherm Trace Heating Systems, including complete specification and design, tailored to meet an extensive range of industry and commercial needs.