The Rosemount 848T is the multi-input member of the temperature family: one transmitter platform that can consolidate multiple temperature points when the network, installation, and project basis support it. The model code has three required positions and option adders, plus a WirelessHART variant. This guide explains how to read supported rows with the Rosemount 848T Multi-Input Temperature Decoder, anchored to Emerson PDS 00813-0100-4697 Rev SD (August 2024), the current Fieldbus and WirelessHART QSGs, and current reference-manual source pointers. It is a review aid, not an Emerson order, certificate, host/network approval, installation approval, or commissioning record.
Output Sets the Local Protocol Prompt
The first required position, the transmitter output, selects the local protocol row set: FOUNDATION Fieldbus (F) or WirelessHART (X). The supported PDS rows tie those outputs to the local eight-channel and four-channel prompts, respectively.
Do not make the architecture decision from that count alone. Fieldbus segment power, terminators, barriers, device-description files, function blocks, host commissioning, WirelessHART gateway, network ID/join key, antenna path, update rate, and physical access all live outside the model-code decode.
Rosemount 848T Multi-Input Temperature Decoder
Decode Rosemount 848T Rev SD rows with channel-map, certification, S002, Fieldbus, WirelessHART, configuration, and install warnings.
Certification and Input Type
The second required position is a two-character product certification row. The third is the input type: S001 for RTD, thermocouple, mV, and ohm input rows; S002 for added 4-20 mA input capability.
A decoded certification row is not hazardous-area approval. Exact certificate, label, entity/FISCO rules, enclosure, glands/adapters/plugs, ambient and process temperature limits, local code, AHJ, and qualified review remain outside the decoder.
The S002 Certification Source Gap
S002 looks like a simple input upgrade, but it carries a narrow local Rev SD certification set. On the Fieldbus 848T, the local supported set is N1, N5, N6, NC, NK, and NA. On the wireless 848T, it is NA and N5. If a draft code pairs S002 with another certification, the decoder warns because the local source row does not support that pairing.
Treat that warning as a current-source and Emerson review item, not a final factory/order decision. S002 also requires analog-transmitter range/scaling, loop-power, isolation, certification, channel mapping, and configuration review outside the model code.
Wireless Build Requirements and the Channel Map
A WirelessHART 848T (output X) needs more than the X character. The local parser warns when a wireless enclosure (HA1/HA2) or wireless antenna prompt (WK1/WM1) is missing, and it flags wireless-only option rows that appear on a Fieldbus build.
That still does not approve the wireless installation. Power-module handling, shipping, update rate, gateway, network ID/join key, security policy, antenna placement, physical access, signal path, hazardous-area conditions, and commissioning records require current wireless QSG/manual review. Finally, as with the rest of the temperature family, the per-channel sensor type and scaling are configured on the device, not encoded in the model code. Pull the Configuration Data Sheet or live setup for channel assignments, range/span, scaling, function-block mapping, damping, alarms, and calibration records.