OMNITERM CURRENT LOOP ISOLATORS

The elimination of ground loops in your 4-20mA signal loops is the key to reliable and accurate measurements. The Omniterm Current Loop Isolator family are designed specifically to solve these system problems, whether you just need to isolate a two-wire transmitter from your PLC, or whether you need to split a current loop into two for the addition of data acquisition or monitoring. 

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Omniterm LPI
Model C2063B
DIN rail mount single loop-powered signal isolator

Use the LPI loop powered isolator to remove ground loops in 4-20mA current loops where power is unavailable and there is sufficient spare volt drop in the loop to accommodate the insertion loss.

Omniterm LPD
Model C2462A
DIN rail mount dual loop-powered isolator

Use the LPD dual loop powered isolator to remove grounds loops in multiple 4-20mA loops where space is at a premium. The LPD incorporates the equivalent of two LPI's in a single 22.5mm housing.

Omniterm LPI Loop Powered Isolator

  • Extremely low insertion loss (2.5Volts typical) avoids loop overload.

  • No field calibration means lowest installation and commissioning costs.

  • Load independence allows use in two-wire transmitter loops.

  • Operates over 0-50mA

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Omniterm LPI Loop Powered Isolator

  • Extremely low insertion loss (2.5Volts typical) avoids loop overload.

  • No field calibration means lowest installation and commissioning costs.

  • Load independence allows use in two-wire transmitter loops.

  • Dual circuit high density packaging for smallest space

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Omniterm LPR
Model C2463B
DIN rail mount Current Loop Repeater (24Vdc powered).

Use the LPR loop repeater to increase the drive capacity of a 4-20mA loop. Connect the LPR into an existing current loop and get a second isolated current loop that mirrors the current of the first loop. 

Omniterm LPS
Model C2464B
DIN rail mount Current Loop Splitter (24Vdc powered)

Use the LPS Loop Splitter to create two additional individually isolated current loops from a single loop. The LPS is identical to the LPR, but has two outputs instead of one. 

Omniterm LPR Loop Repeater

  • Low insertion loss means that the LPR will not overload the existing loop regardless of the load connected to the output.

  • Drive an additional 1kohm load from an existing loop.

  • Isolation of both input and output ensures error free operation..

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Omniterm LPS Loop Splitter

  • Low insertion loss means that the LPS will not overload the existing loop regardless of the load connected to the output.

  • Drive two additional 1kohm loads from an existing loop.

  • Isolation of both input and outputs ensures error free operation..

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Omniterm LZI
Model C2474A
DIN rail mount Current Loop Isolator with surge suppression.

Use the LZI current loop isolator to interface two-wire transmitters from the field into RTU's and local panels. Provides isolated loop voltage to the field mounted transmitter with integrated full 10kA surge suppression to protect sensitive equipment in the panel. Also includes loop voltage stabiliser allowing two wire transmitters to be used from any 9-30Vdc supply such as found in 12V battery powered RTU's.  

Omniterm LZD
Model C2475A
DIN rail mount Dual  Loop Isolator with Surge Suppression

Use the LZD to interface multiple two-wire transmitters into your RTU or local panel. Integrated full 10kA Surge Suppression protects your panel from surges. This a dual channel version of the Omniterm LZI. 

Omniterm LZI Loop Repeater

  • 1500Vac Isolation to two-wire transmitters in the field.

  • Full 10kA surge suppression built in to protect equipment in the panel.

  • Loop Voltage stabiliser allows two wire transmitters to be driven from 9-30Vdc supplies.

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Omniterm LZD Loop Splitter

  • 1500Vac Isolation to two-wire transmitters in the field.

  • Full 10kA surge suppression built in to protect equipment in the panel.

  • Loop Voltage stabiliser allows two wire transmitters to be driven from 9-30Vdc supplies.

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See the full range of Omniterm modules.