Analog 4-20mA Loop Powered Isolators – 24VDC Supply

The input 4-20mA Signal from a transmitter is measured and converted into isolated 4-20mA Output signal which is exact replica of the input signal. The Circuit on the input side draws power from the 4-20mA input being measured and the output circuit draws power from the 4-20mA 2-wire Output connection. Thus no separate external power supply is needed for the unit. Optical Isolation is provided internally to isolate the input and output signals.

Ordering Information

MODEL NUMBERS
Single Channel I II 42–4W–42-2W–2P 
Dual Channel I II 42–4W–42-2W–2P-22I

 

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  • Input : 4 – 20mADC (4-Wire) Loop powered input circuit
  • Output : 4 – 20mADC (2 -Wire Loop Powered)
  • 2kV between Input & Output
  • No external Power Supply required
  • Operating Temp. 0-55°C
  • High channel density as 2 channel isolators housed in 22.5mm width

Applications

  • The SIM -μ 2.0 Series are designed for applications requiring isolation of 2 Wire 4-20mA signals from PLC/DCS input module.

 

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Input Input Options: 4 – 20mADC (4-Wire) Loop powered input circuit. Factory Set
Voltage drop across Input 7.5VDC (max)
Input Impedance For Current
For Voltage
100 Ohm
100 kOhm
Output Signal Output Options: 4 – 20mADC (2 -Wire Loop Powered) Factory Set
Loop voltage Drop Across Output 12 VDC (min) — 28VDC (max)
Performance Accuracy ±0.2% of Span
Linearity 0.1%
Calibration Zero & Span (Trimpot )

 

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Isolation 2KV between Input & Output
Power Supply No External Power Supply required.
Enclosure ABS Plastic, 35 mm DIN Rail Mounted. IP40 Protection class. Single Output W – 22.5mm
H – 75mm
D – 110mm
Termination Screw type terminals suitable for 1.5 mm sq. Wire.
Weight(Approx) 50 Gm.
Operating temp. range 0 – 55°C
Storage temp. range 0 – 80°C
Relative Humidity 0 – 90%
RH Non-Condensing
Max. Altitude 3000 mts above MSL

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Pin Details Pin Details
1 +Input 5 +Output
2 -Input 6 -Output
3 NC 7 NC
4 NC 8 NC

Block Diagram:

Type: I II 42–4W–42-2W–2P

Pin Details Pin Details
1 +Output1 5 +Input1
2 Output2 6 -Input1
3 +Output2 7 +Input2
4 Output2 8 -Input2

 

Type: I II 42–4W–42-2W–2P-22I

 

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Additional information

Input Types

DC Current 0-20/4-20 mA

Output Signal

Current 0-20/4-20mA (4 Wire), Current 4-20mA ( 2- Wire)

Supply

24VDC

Isolation Level

2 KV

Enclosure

ABS Plastic

Product Type

Isolator

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