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Manufacturer : MTL Instruments
Product No. : MTL5541
Product Type : Repeater Power Supply
Number of channels : One
Location of transmitter : Zone 0, IIC, T4–6 hazardous area if
suitably certified Div. 1, Group A hazardous location
Safe-area circuit ripple : < 50µA peak-to-peak
Transfer accuracy at 20°C : Better than 15µA
Temperature drift : < 0.8µA/°C
Response time : Settles to within 10% of final value within 50µs
Communications supported : HART® (terminals 1 & 2 only)
LED indicator : Green: power indication
Maximum current consumption (with 20mA signal) : 51mA at 24V
Dimensions (LxWxH) : 1.58 cm x 10.98 cm x 12.36 cm
Weight : 0.11 Kg
The MTLx541 provides a fully-floating dc supply for energising a conventional 2- or 3-wire 4/20mA transmitter, which is located in a hazardous area, and repeats the current in another floating circuit to drive a safe-area load. For HART 2-wire transmitters, the unit allows bi-directional communications signals superimposed on the 4/20mA loop current. Alternatively, the MTLx541S acts as a current sink for a safe-area connection rather than driving a current into the load.
| Hazardous Area Input | Signal range: 0-24 mA (including over-range); Transmitter voltage: 16.5 V at 20 mA |
| Safe Area Output | Signal range: 4-20 mA; Under/over-range: 0-24 mA; Load resistance: 0 to 360Ω @ 24 mA, or 0 to 450Ω @ 20 mA; Current sink: 600Ω max.; Maximum voltage source: 24 VDC; Output resistance: > 1 MΩ |
| Power Requirement | 20-35 VDC. |
| Response Time | Settles to within 10% of final value within 50 µs |
| Current Consumption | 51 mA @ 24V |
| Maximum Power Dissipation | 0.7 W @ 24 VDC, 1.0 W @ 24 VDC |
| Isolation | n 250 V RMS, tested at 1500 V RMS minimum, between safe-area and hazardous-area terminals; 50 V between safe-area circuits and power supply |
| Transfer Accuracy at 68°F (20°C) | Better than 15 µA |
| LED Indicator | Green: Power indication |
| Temperature Limits | Operating: -6 to 140°F (-20 to 60°C); Storage: -40 to 176°F (-40 to 80°C) |
| Temperature Drift | < 0.8µA/°C |
| Humidity | 5 to 95% RH |
| Mounting | T-section 35 mm DIN rail (7.5 or 15 mm) to EN 50022 |
| Terminals | Accommodate up to 2.5 mm2 stranded or single-core |
| Safety Description | Vo= 28 V, Io= 93 mA, Po= 651mW, Um= 253 RMS or DC |
| Weight | 150g |
