MTL4549 Dual-Channel Signal Isolator – Safe 4-20mA to Hazardous Area Converter
Precision Signal Transfer for Critical Zones
The MTL4549 safely converts 4-20mA control signals for use in explosive areas. This two-channel isolator works with I/P converters and HART devices. It detects wiring faults and keeps systems safe. Perfect for controlling valves in oil, gas and chemical plants.
Key Benefits
- Dual isolated channels – control two devices
- HART communication – works with smart positioners
- Wiring fault detection – knows broken or shorted wires
- Wide load range – drives up to 800Ω devices
- Fast response – settles in under 100ms
Technical Specifications
| Model Number: | MTL4549-EX/2CH |
| Signal Range: | 1-24mA (4-20mA normal) |
| Load Capacity: | 90Ω to 800Ω |
| Accuracy: | ±20μA at 20°C |
| Temp Stability: | <1μA/°C drift |
| HART Bandwidth: | 500Hz-10kHz |
| Isolation Voltage: | 253V AC/DC |
| Power Consumption: | 1.6W at 24V DC |
| Response Time: | <100ms to settle |
Installation Made Simple
Connect your 4-20mA input to safe-area terminals. Wire field devices to hazardous-area outputs. Green LED shows power status. Works with all HART-compatible devices.
Expert Questions Answered
Q: Can it handle signal spikes?
A: Yes, filters keep ripple under 40μA.
Q: What happens during wire faults?
A: Current drops below 0.9mA for quick detection.
Q: Is calibration needed?
A: No – maintains ±20μA accuracy automatically.
Q: Can I use one channel only?
A: Yes, each channel works independently.
Q: What’s the maximum cable length?
A: Up to 1km with proper wire gauge.
What’s Included
- 1x MTL4549 isolator
- DIN rail mount
- Terminal labels
- Quick start guide
Shipping & Protection
Fast global delivery via FedEx, UPS, DHL. Your 12-month coverage guarantees worry-free operation.
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