SEM1000 Loop Isolator

Brand: Status Instruments

The SEM1000 loop isolator is an ideal solution to overcome ground loops. 

Designed to be series connected into a new or existing (4-20) mA current loop and provide an isolated (4-20) mA signal capable of driving into 300 ohms. The output is powered from the input loop.

This isolator requires no user adjustment during commissioning. 

Minor adjustments can be made to the calibration of the device by means of the two front panel accessible calibration potentiometers. 

Incorrect connection in the loop will not damage the device as long as the specified maximum currents/voltages are not exceeded.
Features
  • Loop isolator
  • 4-20 mA output
  • Galvanic isolation 500 Vdc flash tested 1 kV
  • High accuracy 0.05%
  • 12.5 mm wide

Specifications

Accuracy

  • 0.05% of Full Range Output

Adjustment Type

  • Zero & Span Adjustment

Ambient Temperature Range

  • 0° to 70° C (32° to 158° F)

Approvals & Certifications

  • CE
  • Electrical Safety: BS EN 61010-1 Pollution Degree 2, Installation CAT II, Class I
  • EMC: BS EN 61326
  • Flammability: UL 94-VO VDE 0304 Part 3, Level IIIA

Electrical Connectors

  • Captive Clamp Screws

Electrical Protection

  • Reverse Polarity

Enclosure, Body Material

  • Grey Polyamide

Humidity

  • 10 to 95% Relative Humidity, Non-Condensing

Input

  • 4-20 mA, 30 mA - Maximum

Isolation

  • Galvanic: 500 Vdc (Flash Tested at 1 kV)

Load

  • 0 to 300 ohms

Mounting

  • Snap on Top Hat Rail Mounting (DIN EN 50022-35)

Output

  • 4-20 mA

Response Time

  • < 100 milliseconds to Reach 63% of Final Value

Size

  • Cable Size: 2.5 mm² Stranded
  • Cable Size: 4 mm² Solid, Maximum

Stability

  • 0.01% / °C

Supply Voltage

  • Maximum

Voltage Drop

  • 5 V Typical (5.5 V, Maximum

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