PR Electronics 5335D 2-Wire HART Temperature Transmitter
Overview
The PR Electronics 5335D is a 2-wire HART temperature transmitter designed for DIN form B sensor head mounting, accepting RTD, thermocouple, resistance, or millivolt inputs with extremely high measurement accuracy and full galvanic isolation between input and output. Built to HART 5 protocol, the 5335D supports connection of up to 15 transmitters on a digital 2-wire multidrop network, giving instrumentation engineers flexibility in system architecture while maintaining precise, isolated temperature measurement.
Seven Star LLC supplies the PR Electronics 5335D as an experienced supply partner to process facilities across Oman and the GCC that require accurate, SIL-capable temperature transmitters for sensor head installation. Every unit supplied through Seven Star LLC comes with PR Electronics documentation and access to FMEDA safety documentation for installations in Muscat, Sohar, and Salalah.
Measurement and Operating Principle
Within a few seconds, the 5335D can be programmed to measure temperatures across all ranges defined by industry norms, with RTD and resistance inputs featuring cable compensation for 2-, 3-, and 4-wire sensor connections, ensuring lead-wire resistance does not introduce measurement error. The transmitter also supports amplification of a bipolar millivolt signal to a standard 4-20mA current output for non-standard sensor applications.
The 5335D provides the required failure data (SFF and PFDavg) for SIL 2 applications per IEC 61508 and IEC 61511, with continuous checking of vital stored data for safety integrity and sensor error detection following NAMUR NE89 guidelines. This combination of high accuracy and documented safety performance makes the 5335D suitable for both standard process monitoring and safety-instrumented temperature loops.
Engineering Design of the PR Electronics 5335D
The 5335D is available with ATEX intrinsically safe certification (II 1 G Ex ia IIC T6…T4 Ga, II 2 D Ex ia IIIC Db, I M1 Ex ia I Ma) and IECEx certification (Ex ia IIC T6…T4), allowing direct installation in Zone 0 and Zone 1 hazardous locations when supplied through a suitable intrinsically safe barrier. Galvanic isolation between input, output, and power protects the transmitter and connected systems from ground loops and transient electrical events common in industrial sensor head installations.
Designed for compact DIN form B sensor head mounting, the 5335D integrates directly at the point of temperature measurement, minimizing wiring runs and associated measurement error from lead-wire resistance or electrical noise pickup. HART 5 communication allows remote configuration, diagnostics, and multidrop network operation supporting up to 15 transmitters per digital loop.
Key Features
- 2-wire HART 5 protocol temperature transmitter
- Accepts RTD, thermocouple, resistance, and millivolt inputs
- Cable compensation for 2-, 3-, and 4-wire RTD connections
- SIL 2 capable per IEC 61508 / IEC 61511 with documented FMEDA data
- ATEX and IECEx intrinsically safe certification for Zone 0/1 installation
- Galvanic isolation between input, output, and power
- Sensor error detection per NAMUR NE89 guidelines
- Supports up to 15 transmitters on a digital 2-wire multidrop network
Industrial Applications
The 5335D is widely used across Oman’s process industries for point-of-measurement temperature transmission directly at the sensor head, reducing cabling costs and measurement error compared to remote-panel-mounted transmitters. Its SIL 2 capability and hazardous-area certifications make it suitable for safety-instrumented temperature loops in refineries and petrochemical facilities across Sohar and Salalah, while its multidrop networking supports cost-effective monitoring across large facilities in Muscat.
As a supplier of PR Electronics products, Seven Star LLC helps ensure 5335D transmitters deployed across Oman and the GCC are correctly specified for the target sensor type and hazardous-area classification, with FMEDA documentation for safety system engineering. This genuine relationship gives instrumentation engineers confidence in both accuracy and long-term reliability.
Technical Specifications
| Model | PR Electronics 5335D |
|---|---|
| Input Types | RTD, Thermocouple, Ohm, mV |
| Communication | HART 5 protocol, 2-wire, up to 15 units multidrop |
| Accuracy | Better than 0.05% of selected range |
| Safety Rating | SIL 2 capable (IEC 61508 / IEC 61511) |
| Hazardous Area Certification | ATEX Ex ia IIC T6…T4 Ga, IECEx Ex ia IIC T6…T4 |
| Supply Voltage | 8–30 VDC |
| Operating Temperature | -40°C to +85°C |
| Mounting | DIN form B sensor head |
| Isolation Voltage (test / operation) | 1.5 kVAC / 50 VAC |
| Response Time (programmable) | 1…60 s |
| Warm-up Time | 30 s |
| Sensor Error Indication (NAMUR NE43) | Upscale 23 mA / downscale 3.5 mA |
| Intrinsic Safety Input Parameters (terminals 1, 2) | Ui 30 VDC, Ii 120 mA, Pi 0.84 W or 0.75 W, Ci 1.0 nF |
| Protection Degree (enclosure / terminal) | IP68 / IP00 |
| Dimensions | Diameter 44 × 20.2 mm |
| Weight | Approx. 50 g |
5335A and 5335D Versions
Hazardous-Area Installation Limits for the 5335D
Why Choose Seven Star LLC for PR Electronics Temperature Transmitters
Getting real accuracy from a 2-wire HART temperature transmitter depends on matching sensor type (RTD or thermocouple), input range, and linearization to your actual process, and confirming whether your application genuinely needs FMEDA-documented SIL capability or standard-grade reliability is enough. Seven Star LLC works with your instrumentation team to confirm the correct 5335D configuration for your sensor type and process range before order confirmation, drawing on our trusted PR Electronics suppliership across Oman and the wider GCC. We also support process plants across Muscat, Sohar, and Salalah standardizing their temperature instrumentation fleet on a single transmitter platform, planning spare units and consistent HART configuration so replacements integrate without reprogramming an entire control loop, and we advise on when the FMEDA-documented safety variant is genuinely required versus when a standard-grade transmitter is the more cost-effective choice for a given loop, and we help coordinate delivery timelines for multi-loop instrumentation packages on new-build and revamp projects across the region, drawing on our instrumentation staff to answer sensor-matching questions as your project moves from specification to commissioning, so procurement decisions stay grounded in real application requirements rather than datasheet assumptions alone.
Contact Seven Star LLC today for a quotation for the PR Electronics 5335D 2-Wire HART Temperature Transmitter with FMEDA safety documentation, and expert technical support for temperature measurement projects across Oman and the GCC.
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- Datasheet PR Electronics 5335D 2-Wire HART Temperature Transmitter Datasheet Download
PR electronics series listed here
The first two digits of a PR type number show the series. The 4116 is from the 4000 series of DIN-rail devices and accepts RTD, thermocouple, resistance, current and voltage inputs, with analog and relay outputs. The 9116B is from the 9000 series for safety and hazardous-area loops, and the B version is the one that takes signals from Ex zones. The 5335D is a 2-wire HART transmitter for mounting in a sensor connection head, and the D version is the intrinsically safe one. The 4000 and 9000 series are set up with the detachable 4500-series display front.Ordering PR electronics modules: what we need
Send the complete type number with its letter, plus the serial number from the side label. If you want the device delivered configured, give the input type and range, output range and relay settings. State the Ex approval and any SIL requirement of the loop. We serve projects across the GCC and provide the manufacturer's documents on request.Browse PR electronics products by category: Isolator & Barrier, Temperature Instrumentation.
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