Emerson 475 Field Communicator – HART & FOUNDATION Fieldbus

Overview

The Emerson 475 Field Communicator is a handheld, intrinsically safe communicator for configuring, commissioning and troubleshooting HART and FOUNDATION Fieldbus field devices. It supports HART versions 5, 6 and 7, including WirelessHART devices, and can be licensed for FOUNDATION Fieldbus. It succeeded the 375 Field Communicator and added a colour touchscreen, Bluetooth communication and field diagnostics such as ValveLink Mobile.

Device Descriptions (DDs) and system software are updated on site with the Easy Upgrade Utility, and device configurations can be transferred to a PC or AMS Device Manager. Emerson has marked the 475 as discontinued and now offers the AMS Trex Device Communicator for new purchases. Units, power modules, chargers and lead sets remain in wide use for existing maintenance fleets.

Key Features

• HART 5, 6 and 7 (including WirelessHART) and FOUNDATION Fieldbus (licensed option) support
• 3.5 in. colour transflective touchscreen with 25-key membrane keypad
• IrDA and optional licensed Bluetooth interfaces for transfer to a PC or AMS Device Manager
• Field diagnostics: FF segment voltage and noise checks, HART loop voltage check, ValveLink Mobile for Fisher FIELDVUE controllers
• Easy Upgrade Utility for loading DDs and licences (Easy Upgrade renewals ended 30 Oct 2020)
• Intrinsically safe; ATEX, FM, CSA, FISCO and IECEx approvals in one model option

Technical Specifications

Applications

• Commissioning of HART and FOUNDATION Fieldbus transmitters, analysers and valve positioners
• Routine loop checks, trims and configuration backups during plant maintenance
• Valve diagnostics on Fisher FIELDVUE digital valve controllers
• Fieldbus segment troubleshooting in oil & gas, petrochemical, power and water facilities

Emerson 475 Field Communicator Model Code and Ordering Options

The 475 is ordered with a string of option codes, and the code decides what a given unit can actually do. After the base model 475, the first letter sets the protocol: H for HART only, F for HART plus FOUNDATION fieldbus. P denotes the rechargeable Li-Ion power module. The next position is 1 when the universal power supply/charger is included, or 9 when it is not. A language letter follows (E English, D German, J Japanese, R Russian, C Chinese, F French, P Portuguese).

Hazardous-area approval is a separate choice: KL gives ATEX, FM, CSA and IECEx intrinsic safety including FISCO where applicable, while NA means no approval, so an NA unit must not be taken into a classified area. U adds the Easy Upgrade option, which allows the owner to load new system software and device descriptions for three years; Emerson requires U whenever fieldbus is specified. GM covers graphics and device configuration management, the latter allowing up to 1000 stored configurations.

Bluetooth is also an ordered, licensed feature: code T includes it and code 9 omits the radio entirely. Optional suffix A adds a spare Li-Ion power module and S adds a protective rubber boot with stand. Emerson gives 475 H P 1 E KL U GMT as an example for a typical HART unit and 475 F P 1 E KL U GMT for HART plus fieldbus. When buying a used or surplus 475, ask for the full model string and licence status rather than relying on the product name alone.

Emerson 475 Hazardous-Area Certification, Battery and Charger Limits

Units ordered with the KL option carry ATEX certificate BVS 09 ATEX E 022 with marking II 2 G (1 GD) Ex ia [ia Ga] [ia Da IIIC] IIC T4 Gb and IECEx certificate IECEx BVS 10.0094, both valid for ambient temperatures from -10 to +50 °C. FM approval covers Class I, Division 1, Groups A, B, C and D and Class I, Zone 0, AEx ia IIC T4 when connected according to control drawing 00475-1130. For HART connections the intrinsically safe input parameters are Ui 30 V DC, Ii 200 mA and Pi 1.0 W, with Li and Ci equal to zero.

The power module contains two Li-Ion cells and is not user serviceable. Emerson states that it must never be recharged in a hazardous area because the power supply/charger is not IS-approved, and that only the Field Communicator charger may be used. Charging is permitted between +10 and +40 °C. With a battery fitted, storage is limited to -20 to +55 °C for less than one month; without a battery the limit is -20 to +60 °C. The charger accepts 100-240 VAC, delivers 20 W and weighs 240 g.

Why Seven Star LLC

Seven Star LLC supplies Emerson field communicators and accessories across Oman and the GCC. Because the 475 is discontinued, we confirm the model option, licences and condition against your requirement before quoting, and can also quote the AMS Trex Device Communicator where a new unit is needed.

Request a Quote for Emerson 475 Field Communicator – HART & FOUNDATION Fieldbus

Send your request through our inquiry form with the model string or kit code (or a photo of the label), quantity, whether FOUNDATION Fieldbus and hazardous-area approval are required, and any spares such as power modules, chargers or lead sets. Seven Star LLC will confirm availability and lead time.

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