Foxboro 33C‑AJ‑D Spec‑200 Temperature Transmitter Module

Technical Specifications

Model:33C‑AJ‑D

Brand:Foxboro

System compatibility:Spec‑200 analog DCS system

Function:RTD temperature signal conditioning and conversion

Sensor input:Platinum RTD resistance sensor

Output signal:4‑20mA analog current loop signal

Calibration:On‑board zero and span potentiometer for field calibration

Installation:Standard Spec‑200 rack slot,direct backplane bus connection

Module power supply:120VAC nominal

Accuracy:±0.1% full scale

Typical response time:5ms

Environmental standard:Compliant with ISA‑S71.04 Class G3 industrial atmospheric condition

Housing:Metal shielded rack‑mount housing,anti‑vibration mechanical structure

Protection class:IP20

Horizontal operating temperature:0℃ ~ +60℃

Vertical operating temperature:‑20℃ ~ +55℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Weight:0.54kg

Dimensions:34mm × 126mm × 142mm

Certification:CE,UL

MTBF:>92000 hours

Built‑in function

33C‑AJ‑D temperature transmitter collects resistance signal from field‑mounted platinum RTD sensors and converts temperature measurement to standard 4‑20mA analog signal for Spec‑200 rack processing. Zero‑span potentiometers support on‑site calibration without removing module from rack. Shielded metal housing restrains electromagnetic interference to guarantee stable temperature acquisition for petrochemical,power and chemical process loops.

Product Brief

33C‑AJ‑D belongs to Foxboro Spec‑200 legacy DCS spare‑part family,obsolete original automation component. It needs to be fitted into matching Spec‑200 instrument rack with proper RTD field wiring. Widely used for original Foxboro DCS equipment maintenance and renovation. ESD anti‑static protection shall be followed during installation