Description
MTL4042: Simple Transmitter Power Interface
The MTL4042 provides safe power for 2-wire 4/20mA transmitters in hazardous areas. It repeats the signal accurately to drive safe-area loads. This reliable interface offers excellent voltage output and electrical isolation for industrial applications.
Technical Specifications
- Brand: MTL
- Model: 4042
- Signal Range: 4-20mA (1.0-21.5mA over/under-range)
- Transmitter Voltage: 18.0V minimum at 20mA
- Open Circuit Voltage: 28V maximum
- Load Resistance: 0 to 650Ω
- Output Resistance: >1MΩ
- Accuracy: Better than 20μA at 20°C
- Temperature Drift: <1μA/°C
- Response Time: 20ms to within 200μA
- Ripple: <50μA peak-to-peak
- Isolation: 250V AC between areas
- Power Consumption: 65mA at 24V
- Power Dissipation: 1.2W at 24V
- Hazardous Rating: Zone 0, IIB, T4-T6 / Div 1, Group C
- Safety Parameters: Uo=28V, Io=187mA
- FM Parameters: Voc=28V, Isc=185.5mA
- LED Indicator: Green power light
- Operating Temperature: -20°C to +60°C
- Storage Temperature: -40°C to +85°C
- Termination: 14-pin terminal block
- Mounting: DIN rail or panel mount
Frequently Asked Questions
- What types of transmitters does it support?
It works with conventional 2-wire 4/20mA transmitters in hazardous areas. - What is the maximum cable length supported?
The 18V output at 20mA supports long cable runs to field transmitters. - Can it handle signals outside 4-20mA range?
Yes, it supports under-range (1.0mA) and over-range (21.5mA) signals. - What are the optional terminals for?
Terminals 3-4 and 7-8 provide additional connection options for special applications. - Is electrical isolation provided?
Yes, 250V AC isolation between safe and hazardous area circuits.
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