SEM1020 Loop Booster

Brand: Status Instruments

The SEM1020 Isolator is designed for use when power is available at both sides of the isolation barrier.

This isolator requires no user adjustment during commissioning, apart from an initial test, to ensure it operates correctly over its full working range.

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.

Specifications

Accuracy

  • ± 0.05% (± 0.008 mA) of Full Range Output

Adjustment Type

  • Zero & Span Adjustment

Ambient Temperature Range

  • 0° to 70° C (32° to 158° F)

Approvals & Certifications

  • CE
  • EMC BS EN 61326
  • Environment: BS EN 61010-1 Pollution Degree 2, Installation Cat II, Class I
  • UL94-VO
  • VDE 0304 Part 3, Level IIIA

Electrical Connectors

  • Captive Clamp Screws

Electrical Protection

  • Reversed Power Supply Protection

Enclosure, Body Material

  • Grey Polyamide

Humidity

  • 10 to 95% Relative Humidity, Non-Condensing

Input

  • 35 V, Maximum
  • 4-20 mA, 30 mA - Maximum

Isolation

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

Load

  • > 250 ohms for Ambients > 50° C (122° F)
  • 1,200 ohms at Vs 30 V
  • 900 ohms at Vs 24 V

Mounting

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

Output

  • 2-Wire Current Sink 4-20 mA
  • Loop Voltage: 5-32 Vdc

Response Time

  • less than 100 milliseconds to Reach 70% of Final Value

Size

  • Cable Size: Maximum

Stability

  • 0.01% / °C

Voltage Drop

  • 2.7 V, Maximum

Documentation

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