MTL MTL3042 DC ISOLATOR 4/20mA - Loop Powered for I/P Converters

MTL MTL3042 DC ISOLATOR 4/20mA - Loop Powered for I/P Converters

MTL MTL3042 DC ISOLATOR 4/20mA - Loop Powered for I/P Converters

MTL MTL3042 DC ISOLATOR 4/20mA - Loop Powered for I/P Converters

Description

This unit acts like a direct-current transformer. Always powered from the safe-area side, it ensures that the same current flows in the safe and hazardous-area circuits and allows it to be controlled from either.  It is intended primarily for isolating and passing on a 4/20mA signal from a controller to drive a current-to-pressure (I/P) converter or a position actuator. If the loop is sensitive to the volt drop introduced by the unit, then the separately powered MTL3045 should be used. Note that the lower-cost MTL3043 can also be used for driving I/P converters in many closed-loop applications with integral control where its lower accuracy is acceptable.

MTL MTL3042 DC ISOLATOR 4/20mA - Loop Powered for I/P Converters

Specification

Number of channels
One, fully floating
Location of I/P converter
Zone 0, IIC, T4–6 hazardous area if suitably certified
Div 1, Group A, hazardous location
Input voltage
11 to 35V dc
Input and output signal range
4 to 20mA
Minimum output voltage at 20mA
Maximum output voltage
28V from 300Ω
Input and output circuit ripple
<100µA peak-to-peak
Transfer accuracy at 20°C
Better than 50µA
Temperature drift
<2µA/°C
Response time
Settles to within 10% of final value after typically 70ms
Power dissipation within unit
0.4W typical at 24V with 20mA signal
0.5W maximum at 35V with 20mA signal
Replaceable fuse
50mA, 5x20mm glass to DIN 41571 sht.2, semi-time-lag (M)
Safety description
28V, 300Ω, 93mA, Um = 250V rms or dc
FM max entity parameters
Voc = 28V, Isc = 93mA, Ca = 0.13µF, La = 4.0mH
Weight
160g

MTL MTL3042 DC ISOLATOR 4/20mA - Loop Powered for I/P Converters

MTL MTL3042 DC ISOLATOR 4/20mA - Loop Powered for I/P Converters