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Fireye Ambient Air Temperature Transmitter - Sensors
FireyeSensors

Fireye Ambient Air Temperature Transmitter

The Fireye 3G-OTH-02821 is an ambient air temperature transmitter featuring a watertight enclosure for wet conditions, a quick-response sensor for prompt temperature detection, and a 4-20mA signal output for easy…

SKU 3G-OTH-02821

Also listed as: FXIATS140 · FXIATS 140

Brand
Fireye
Item
Ambient Air Temperature Transmitter
Part Number
FXIATS-140
Category
Sensors
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Fireye
Models
FXIATS-140
Category
Sensors
Approvals
cULus
Watertight Enclosure
The watertight design of the FXIATS-140 enclosure ensures that the transmitter remains operational even in wet or humid conditions, further enhancing its reliability and durability.
Quick-Response Sensor
The high-speed response of the FXIATS-140 sensor ensures that temperature changes are detected and reported promptly, making it ideal for dynamic applications where timely data is crucial.
4-20mA Signal Transmission
Equipped with a 4-20mA signal output, the FXIATS-140 allows for easy integration into existing control systems. This two-wire operation simplifies wiring and enhances reliability in data transmission.
Well-Vented and Light-Colored Sensor Guard
The sensor guard is designed for optimal ventilation and features a light color to reflect sunlight, reducing thermal interference and improving measurement accuracy.

Technical Documents

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Fireye Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Fireye 3G-OTH-02821 is an ambient air temperature transmitter featuring a watertight enclosure for wet conditions, a quick-response sensor for prompt temperature detection, and a 4-20mA signal output for easy integration into control systems. It includes a UV-resistant plastic shield for outdoor protection and sophisticated integrated circuits for a conditioned and temperature-compensated signal. This sensor carries cULus approval.

Frequently Asked Questions

What is the Fireye 3G-OTH-02821 used for?

The Fireye 3G-OTH-02821 is an ambient air temperature transmitter designed for HVAC, industrial, and commercial applications. It provides a stable, repeatable 4-20mA signal for measuring air temperature in harsh environments, and is approved for use with the PPC4000 Series Fuel/Air Ratio Controller.

What are the specifications of the Fireye 3G-OTH-02821?

The Fireye 3G-OTH-02821 has a temperature range of -40 to 140°F (-40 to 60°C), a 4-20mA output with 850 Ω @ 24 VDC, and operates on 7 to 40 VDC. It features a NEMA 4 (IP66) watertight enclosure, an RTD sensor with ±0.065% accuracy, and cULus approval.

Where to buy the Fireye 3G-OTH-02821 in Singapore?

3G Electric supplies the Fireye 3G-OTH-02821 ambient air temperature transmitter to customers in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact our team for pricing and lead time on this sensor.

How to install the Fireye 3G-OTH-02821 temperature transmitter?

Mount the 3G-OTH-02821 using the extension tabs with 3/16" holes, ensuring the vented sensor guard allows air circulation. Connect 7 to 40 VDC power and 4-20mA signal via the screw terminal block through a ½" NPSM conduit. Do not exceed the -40 to 140°F operating range.

Used in

Common applications for Fireye
Power generation — Fireye M-Series II flame safeguard controls (MC120) for burner management in utility boilers
Petrochemical refining — Fireye UV1AL series UV flame scanners for flame detection in process heaters
Large-scale heating plants — Fireye PMSTR-6000 Plant Master for sequencing multiple NX6100/PPC6000 controls in steam plants
Industrial boiler systems — Fireye MART1/MAUV1 amplifier modules for flame signal amplification in M-Series II chassis
Liquid fuel burners — Fireye SureFire II HDHEI spark igniter for direct ignition of heavy oil in industrial furnaces
Combustion air control — Fireye NXC series servo actuators for damper positioning in burner air management
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Fireye Products

3G Electric supplies Fireye sensors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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