Product Details

The Fireye PXMS-200K is a high-precision piezoresistive pressure transmitter belonging to the upgraded PXMS‑K sensor series for Fireye Nexus combustion control platforms. This piezoresistive pressure transmitter converts steam and process pressure into standard linear 4‑20mA analog signal and sends real-time pressure feedback to PPC4000, PPC5000, PPC6000, NX6100 and NX6300 fuel-air ratio controllers for closed-loop combustion regulation. As a reliable 4-20mA boiler pressure probe, it adopts laser-welded stainless steel isolation diaphragm and silicone oil filling to protect the internal sensing chip from condensate and mild corrosion inside boiler rooms, maintaining stable measurement under frequent thermal fluctuation. This Fireye Nexus pressure transducer is widely used for steam pressure monitoring, high and low pressure safety interlock and combustion efficiency trimming, and stocked as genuine replacement spare part for modern Fireye burner management systems.

Basic Parameters

Brand: Fireye

Model: PXMS-200K

Type: Pressure transmitter / steam pressure sensor

Measuring range: 0–200 PSI (0–14 bar)

Output signal: 4–20 mA linear output

Process connection: 1/2 inch NPT thread

Sensing technology: Piezoresistive silicon sensing element

Wetted material: 316L stainless steel

Compatible controllers: PPC4000, PPC5000, PPC6000, NX6100, NX6300

Self-check status: Non self-check

Accuracy: ±0.25% full scale

Variant note: PXMS‑15K, PXMS‑60K, PXMS‑300K, PXMS‑400K available for other pressure spans

Product type: Original Fireye combustion pressure sensor

Supported Functions

This transmitter continuously samples the pressure of steam or compatible non-corrosive media and transmits proportional analog signals to the host combustion controller. The system uses this pressure data to adjust burner firing rate, activate pressure safety interlocks and fine-tune fuel-air ratio to improve combustion efficiency. It supports long-term pressure trending for boiler operation logging and routine performance inspection.

Core Functions

The fully sealed stainless steel pressure cell provides excellent temperature stability and resists vibration and moisture in harsh industrial environments. The industry-standard 4‑20mA signal simplifies wiring and seamless integration with Nexus control loops without extra signal conversion. The compact threaded body allows direct installation on boiler pressure tapping points, and it serves as direct drop‑in substitution for existing PXMS‑200K pressure transmitters.

Hardware Specifications & Environmental Features

Mounting: 1/2" NPT threaded process connection

Compatible media: Steam, water and non-corrosive process fluid

Operating temperature: -20 °C to +85 °C

Storage temperature: -40 °C to +85 °C

Relative humidity: 5% – 95%, non‑condensing

Housing: Rugged stainless steel sensor assembly

Condition: Original new Fireye pressure transmitter

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm pressure range, thread size and Nexus controller compatibility before ordering; this unit is non self-check and requires periodic calibration to guarantee measuring accuracy.

This is from our current stock.

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