Skip to content
Family Owned & Operated Since 1971• Bakersfield, CA
Valley Instrument
Rosemount 333 HART Tri-Loop Signal Converter
Rosemount

333 HART Tri-Loop Signal Converter

SKU: 333

Converts a single multivariable HART digital signal into up to three independent 4-20 mA analog outputs. Pairs with HART-multivariable transmitters (3051S Advanced HART Diagnostics, 3144P dual-input, 8800D Vortex with TC, etc.) to expose secondary process variables — sensor temperature, scaled variable, mean, standard deviation — to legacy 4-20 mA control systems without a HART host. Two output modes: 333D (one HART input, three 4-20 mA outputs) and 333U (universal — selectable HART pass-through plus analog outputs). External power required per channel.

Contact us for pricing on this product.

Authorized Dealer
Calibration Available
Nationwide Shipping
Expert Support

Converts a single multivariable HART digital signal into up to three independent 4-20 mA analog outputs. Pairs with HART-multivariable transmitters (3051S Advanced HART Diagnostics, 3144P dual-input, 8800D Vortex with TC, etc.) to expose secondary process variables — sensor temperature, scaled variable, mean, standard deviation — to legacy 4-20 mA control systems without a HART host. Two output modes: 333D (one HART input, three 4-20 mA outputs) and 333U (universal — selectable HART pass-through plus analog outputs). External power required per channel.

The Rosemount 333 HART Tri-Loop Signal Converter 333 is manufactured by Rosemount. Valley Instrument Service is an authorized Rosemount dealer offering full sales support, NIST-traceable calibration, and expert technical assistance.

Have questions about this product?

Our team can help with product selection, specs, pricing, and application support.

Contact Us or Call (661) 327-8681

Related Products

AMS Trex 2 Device Communicator (with Bluetooth) # TREX2
Rosemount

AMS Trex 2 Device Communicator (with Bluetooth)

Next-generation AMS Trex on a modern, faster platform with embedded Bluetooth connectivity — same HART / FOUNDATION Fieldbus / WirelessHART communication core as the classic Trex but with improved accuracy, faster device discovery, and over-the-air pairing with Bluetooth-enabled Rosemount transmitters and Fisher valve controllers. Larger, brighter color display. ValveLink Mobile and AMS Device Configurator app integration. The right choice for new field-communicator purchases — better hardware, future-proofed for the Bluetooth-instrumentation transition.

Request Quote →
Rosemount 751 Field Signal Indicator # 751
Rosemount

751 Field Signal Indicator

Loop-powered field-mount digital display for 4-20 mA HART signals. NEMA 4X enclosure. Mounts to pipe or wall. Reads any HART-compatible transmitter's digital variable, not just analog loop current. Useful for HART-only loops or as an at-process display when the transmitter has no integral LCD.

Request Quote →
Product Image
Rosemount

Trex Device Communication Plus Module

Snap-on Plus Module that extends the AMS Trex / Trex 2 Device Communicator with two unique field-communication powers: (1) ability to power loop segments — the Trex provides 24 VDC to wake up an unpowered or stranded transmitter for configuration, and (2) a built-in 4-20 mA ammeter — measure live loop current directly from the Trex without breaking the loop or pulling out a separate multimeter. Best for technicians who routinely commission new transmitters or troubleshoot 4-20 mA loop issues in the field.

Request Quote →