873RS-AIWFNZ-7 Foxboro Electrochemical Analyzers

Foxboro 873RS-AIWFNZ-7 Electrochemical Analyzers Transmitter

Foxboro 873RS-AIWFNZ-7 Electrochemical Analyzers Transmitter

Disponibilidad: 10 Quedan en stock

Foxboro 873RS-AIWFNZ-7 Electrochemical Analyzers The Foxboro 873RS-AIWFNZ-7, also cataloged as the 873RS Electrochemical Analyzers, operates as a dedicated hardware component...

Código: 873RS-AIYFNZ-7

Manufacturer: Foxboro
Product No.: 873RS-AIYFNZ-7
Product Type: Electrochemical Analyzers
Product Origin: USA
Payment:T/T, Western Union
Weight: 2500g
Shipping port: Xiamen
Warranty: 12 months

Descripción Reseñas

Foxboro 873RS-AIWFNZ-7 Electrochemical Analyzers

The Foxboro 873RS-AIWFNZ-7, also cataloged as the 873RS Electrochemical Analyzers, operates as a dedicated hardware component for resistivity signal processing and analog output transmission within Foxboro process control architecture platforms.

Suffix Breakdown & Model Matrix

Code Suffix	Feature Description	Electrical / Physical Specification
873RS	Series Base Model	Electrochemical Resistivity Analyzer / Transmitter
A	Supply Voltage and Frequency	120 VAC, 50/60 Hz
I	Measurement Output	4 to 20 mA DC, Isolated
W	Enclosure Assembly	Field, Metal, Panel Mounting (IP 21 rated)
FNZ	Electrical Certification	FM Certified, Nonincendive
7	Optional Selection	Storm Door Protective Assembly

Hardware Specifications

Parameter	Specification
Model	873RS-AIWFNZ-7
Brand	Foxboro
Origin	USA
Weight	2.5 kg
Dimensions	Standard Panel Mount Field Enclosure
Operating Temp	0 to 50 deg C
Power Consumption	10.2 W max
Input Voltage	120 VAC, 50/60 Hz
Measurement Range	0-20 Megohm
Output Signal	4-20 mA DC, isolated
Contact Outputs	2 NO / NC relays
Protection Fuse	1/8 Amp Slow-Blow (SB)
Temperature Sensor Compensation	100K Thermistor
Accuracy	+/- 2% of reading or +/- 0.05 ppm
Response Time	Less than 60 seconds
Pressure Limit	0 to 2 bar
Enclosure Protection	IP 21

Channel-to-Channel Galvanic Isolation & CJC Integrations

This module relies on isolated 4-20 mA DC measurement circuits to prevent ground loops across dirty field signals and high-density DCS backplanes. Integral temperature compensation loops, including support for 100K thermistor elements, provide active cold junction and process media thermal calibration directly on the analog front-end. The isolation barrier protects internal signal conditioning electronics against common-mode voltage spikes up to the FM nonincendive classification limits.

Frequently Asked Questions

Q: What is the rating and form factor of the onboard protection fuse?

A: The module incorporates an internal 1/8 Amp Slow-Blow (SB) fuse rated for the 120 VAC primary power circuit to prevent overcurrent damage to the internal transformer and signal processing boards.

Q: How does the isolated analog output handle field loop interference?

A: The integrated 4-20 mA DC current output utilizes galvanic channel-to-channel isolation, which breaks ground loops between the transmitter panel and remote DCS analog input cards without requiring external signal isolators.

Q: Does the enclosure rating allow direct outdoor installation without additional covers?

A: The metal field enclosure carries an IP 21 rating and includes a Option 7 storm door assembly, which guards the front display interface against falling drops of water. However, outdoor installations require an auxiliary protective housing to safeguard against wind-blown rain and extreme weather elements.

Field Installation Guidelines

When installing the unit into a control panel cut-out, maintain a minimum vertical clearance of 50 mm above and below the metal housing to permit natural convective heat dissipation across the enclosure walls. Run all AC power wiring (120 VAC) through separate conduit entry ports isolated from low-voltage instrument signal lines, such as the 100K thermistor sensor wiring and the 4-20 mA DC output loop, to prevent inductive noise coupling. Ensure the instrument ground terminal connects directly to the local earth ground bus via a dedicated, low-impedance conductor. For shield termination, ground instrument cable shields at one single point—typically at the receiver control panel—and leave the field end ungrounded and insulated to avoid ground loop current paths.

¿Qué dicen nuestros clientes sobre nosotros?

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Nuestra línea de producción se paró debido a un monitor Bently Nevada defectuoso. Lo encontramos en stock aquí y lo enviaron por DHL de inmediato. Volvió a funcionar en 48 horas, lo que realmente salvó nuestra planta.

Mark Thompson

Gerente de Mantenimiento, EE. UU.

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Encontrar módulos nuevos y originales es fundamental para nuestra seguridad. Este equipo entrega componentes de fábrica con certificación completa. Su compromiso de vender únicamente productos nuevos los convierte en nuestro socio de mayor confianza.

Robert Hoffmann

Jefe de ingeniería, Alemania

Servicio y calidad de primer nivel

Llevamos dos años abasteciendo aquí piezas de Honeywell y Schneider. Todos nuestros envíos llegan perfectamente embalados, con los precintos originales de fábrica intactos. Ofrecemos una comunicación clara y los mejores plazos de entrega del sector.