RH101AA Foxboro Analog I/O 8-Channel Input 4-Channel Output
Manufacturer: Foxboro
-
Part Number: RH101AA
Condition：New with Original Package
Product Type: Foxboro I/A Series
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Foxboro RH101AA serves as a specialized, high-integrity interface for the Foxboro I/A Series Distributed Control System (DCS). This versatile module operates in two primary modes: as a precision pressure transmitter or as a multi-channel analog input/output (AI/AO) unit. Engineered for explosive atmospheres, its intrinsically safe design allows for direct connection to field devices in hazardous zones without compromising system safety. The RH101AA leverages HART® communication to provide deep diagnostic insights and remote configuration capabilities. We supply this module as 100% brand new and original, ensuring long-term measurement stability for critical processes in the oil and gas, chemical, and refining sectors.
Technical Specifications
| Feature | Specification Details |
| Model Number | RH101AA |
| System Compatibility | Foxboro I/A Series DCS |
| Operating Modes | Pressure Transmitter / Analog I/O Module |
| Analog Inputs | 8 Channels (Configurable: Current, Voltage, TC, RTD) |
| Analog Outputs | 4 Channels (4–20 mA or 0–5 V) |
| Pressure Accuracy | ±0.1% of span |
| Conversion Resolution | 16-bit A/D and D/A |
| Housing Material | 316L Stainless Steel (IP67 Sealed) |
| Operating Temp | –40 °C to +85 °C |
| Certifications | ATEX, CE, RoHS |
Engineering Advantages
-
Intrinsically Safe Architecture: The RH101AA meets strict ATEX requirements for hazardous environments. It limits electrical energy within the circuit to prevent the ignition of flammable gases, allowing safe integration into Zone 0/Zone 1 applications.
-
Superior Environmental Hardening: Encased in 316L stainless steel with an IP67 rating, this module resists corrosive chemical vapors and moisture ingress. The wide operating range of –40 °C to +85 °C ensures reliable data acquisition in extreme outdoor climates and high-heat process zones.
-
Flexible Signal Conditioning: In AI/AO mode, the module supports a diverse array of sensor types, including Thermocouples (J, K, T) and RTDs (Pt100). This eliminates the need for external signal converters, reducing wiring complexity and potential failure points.
-
Deterministic Accuracy: With 16-bit resolution and a ±0.1% accuracy span, the RH101AA provides the high-fidelity feedback required for tight PID control loops. The 316L stainless steel diaphragm maintains ±0.05% long-term stability, reducing the frequency of field recalibrations.
FAQs
Q: Can the RH101AA support smart field devices from other manufacturers?
A: Yes. The module utilizes the HART® communication protocol, ensuring seamless interoperability with any HART-compatible smart transmitter or valve positioner for diagnostics and parameter adjustment.
Q: Does the RH101AA require an external safety barrier?
A: Because the RH101AA is intrinsically safe, it is designed to work within a specific system architecture to maintain safety. You should consult your Foxboro I/A Series installation manual to verify the specific grounding and barrier requirements for your hazardous area classification.
Q: How do I switch the module between Pressure Transmitter and AI/AO modes?
A: Mode selection depends on the specific hardware configuration and the I/A Series system software setup. Ensure your baseplate and software definitions match the intended physical application of the RH101AA.
Q: Is this module a new or refurbished unit?
A: We sell only 100% brand new, original Foxboro hardware. Each unit comes in original factory packaging to guarantee the integrity of the 316L housing and the precision of the internal electronics.