4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument

4-20 mA Input/Output DIN Rail Loop Powered Isolator Model DM4391


DM4391-1
Input  (+)
Input  (-)
Output  (+)
Output  (-)
DM4391-2
Input 1  (+)
Input 1  (-)
Output 1  (+)
Output 1  (-)
Input 2  (+)
Input 2  (-)
Output 2  (+)
Output 2  (-)
4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument

4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument

Features

4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument Provides a Fully Isolated 4-20 mAdc Output Proportional to 4-20 mAdc Input
4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument Operating Power Derived from the Input Current
4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument Single or Dual Channel (DM4391-1, DM4391-2)
4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument Plug-in Terminal Blocks
4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument Standard DIN rail Mount With Easy Snap-on Snap-off
4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument User Write-on Label
4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument Connections Readily Accessible From The Front
4-20 mA,Input,Output,DIN Rail,Loop Powered Isolator,Model DM4391,Wilkerson Instrument Permanent Warranty

Description

The DM4391 is a loop powered isolator that provides an isolated 4-20 mA output proportional to a 4-20 mA input.

All operating power for the circuit is derived from the 4-20 mA input current.

The product is useful for breaking ground loops and for creating a 4-20 mA output in locations where primary power is not available.

A unique feedback system allows the DM4391 to achieve the same linearity as powered isolators and to drive loads from 0 ohms to 1000 ohms without affecting linearity.

The product is available as a single channel or a dual channel unit. The dual channel unit has two totally separate circuits that are fully isolated from each other.

Connections are made via two 4-pin plug-in terminal blocks. These terminal blocks allow the product to be removed without unwiring the connections.

Typical Applications

Eliminates ground loops and common mode signals in 4-20 mA current loops for isolation, buffering, noise reduction, especially where line power is NOT available.

Mounting

The module mounts on a standard H-35 DIN rail. A spring latch holds it in place. The module is demounted by using a screw driver to release the latch at the bottom of the module.

Specifications

INPUT
4-20 mA

INPUT VOLTAGE DROP
5+(I(mA)*(Load+76.5)/850)

Typical Drop

Drop (V)
6.8
9.2
12.7
18.6
24.5
30.3
Load(ohms) at 20 mA
0
100
250
500
750
1000

OUTPUT
Output Current
  4-20 mA

Drive Capability
  0 to 1000 ohms

Input to Output Linearity
  ±0.02% of span

Output Ripple
  (peak to peak)
  <0.1% of span

ISOLATION, OUTPUT / INPUT
 Breakdown
  >1000 VAC RMS Sinewave
Resistance
  >500 megohms

OPERATING TEMPERATURE
 14°F to 140°F
-10°C to  60°C

TEMPERATURE STABILITY
±(0.02% of span)/°C

COMMON MODE REJECTION
 >100 dB, DC to 60 Hz




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