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1794-OF41/A - 4-Ch 4-20mA Isolated Output - Industrial Automation Rugged High-Accuracy Analog Module
| MOQ: | 1 |
| Price: | USD 100-10000/Piece |
| Standard Packaging: | 50*50*50mm |
| Delivery Period: | 3-7 |
| Payment Method: | T/T |
| Supply Capacity: | 1/piece in stock |
industrial Allen Bradley Module
,Powerful Allen Bradley Module
,industrial Allen Bradley plc
The Allen-Bradley 1794-OF41/A FLEX I/O™ Analog Output Module delivers precision control signals for critical industrial processes. Engineered for Rockwell Automation's distributed FLEX platform, this 4-channel module supports isolated 4-20mA/0-20mA current outputs and ±10V/0-10V voltage outputs with 16-bit resolution.
Its rugged epoxy-sealed housing (-40°C to +70°C) provides IP67/NEMA 6 protection against washdowns, oils, and corrosive chemicals. Featuring channel-to-channel isolation (250V AC) and 1500V AC backplane isolation, it eliminates ground loops in noisy environments while embedded diagnostics enable predictive maintenance. Studio 5000® integration allows software-configurable ranges and alarm thresholds per point.
- Output Types: 4-20mA / 0-20mA (current); ±10V / 0-10V (voltage)
- Resolution: 16-bit (±0.01% FSR accuracy @25°C)
- Load Capacity: 750Ω max (current), 5kΩ min (voltage)
- Update Rate: ≤1ms per channel (synchronized scan)
- Isolation: 250V AC channel-to-channel; 1500V AC field-to-logic
- Drift: <±100ppm/°C over operating range
- Power Consumption: 80mA @ 5V DC backplane; 100mA @ 24V field
- Compliance: EN 61326-1 (EMC); NAMUR NE43 diagnostics
- Certifications: ATEX/IECEx Zone 2; SIL 2 (IEC 61508); UL Class 1 Div 2
- Chemical Dosing: Proportional valve control for reactors with SIL 2 interlocks
- HVAC Systems: VFD speed regulation in critical airflow environments
- Water Treatment: Chlorine pump modulation with corrosion-resistant outputs
- Pharmaceuticals: Sterile bioreactor feed control (21 CFR Part 11 compliant)
- Food Processing: Conveyor timing with EHEDG-rated IP67 housings
- Energy Management: Gas turbine fuel valve positioning in hazardous locations
Ideal for control valves, I/P transducers, variable-speed drives, and servo amplifiers.
- Diagnostic Intelligence: Open-circuit/short-circuit detection with NAMUR NE43 alarms
- Safety Integration: Certified for safety instrumented systems (SIS) without barriers
- Space Efficiency: 4 isolated channels in 75mm DIN width (60% smaller than competitors)
- Wiring Economy: 1794-TB3S screwless terminals reduce installation time by 50%
- Calibration Stability: Auto-zero compensation eliminates field recalibration for 5+ years
- Dynamic Response: ±0.1% settling time in <2ms for closed-loop systems
- Future-Proofing: Firmware-upgradable via Studio 5000® for protocol enhancements
| Property Category | Specification/Value |
|---|---|
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Product Line | FLEX™ I/O |
| Model Number | 1794-OF41/A |
| Module Type | 4-Channel Isolated Analog Output + HART® Communication |
| Output Channels | 4 (Fully Isolated, Software-Configurable per Channel) |
| Output Signals | Voltage: 0-10V, ±10V, 0-5V, 1-5V Current: 4-20mA, 0-20mA, ±20mA |
| HART® Protocol | Integrated per Channel (HART 7 Compliant) |
| Resolution | Voltage: 15-bit Current: 15-bit |
| Accuracy (25°C) | Voltage: ±0.1% of Full Scale Current: ±0.1% of Full Scale |
| Load Limits | Voltage: ≥1 kΩ Current: ≤600 Ω (Compliance Voltage 19-30V DC) |
| Update Rate | 16 ms per Channel (All Channels Simultaneously) |
| Short-Circuit Protection | Voltage: Continuous Current: Automatic Reset with Thermal Shutdown |
| Isolation | 250V AC Continuous (Channel-to-Channel, Channel-to-Backplane) |
| Operating Temperature | -20°C to +70°C (-4°F to 158°F) |
| Safety Certifications | SIL 2 (IEC 61508), UL Class I Div 2, ATEX Zone 2, IECEx, CE, c-UL-us |
Xiamen ZhiCheng Automation Technology Co., Ltd is a leading global supplier of control system components. We specialize in control systems and drives.
With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.
We specialize in PLC, Sensors, HIM, and Transmitters.
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