OMNITERM LPR & LPS LOOP REPEATER/SPLITTER

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1 S W S W Al arm Sequ enc e Se nses elec tion O N ON OMNITERM & LPS LOOP REPEATER/SPLITTER Model CB (Current Loop Repeater) & CB LPS (Current Loop Splitter). Isolate 0/0mA loops DATASHEET Create extra isolated 0/0mA signals Create extra drive in an existing loop. Very low volt drop/insertion resistance 00mA or 0mA input Voltage or current outputs Vdc powered Output current loops individually isolated. FEATURES D Rail or surface mountable Narrow.mm module width 0 dc powered. 0ac Isolation Input/Output/Power Supply OVERVIEW The OMNITERM current loop repeater and OMNITERM LPS current loop splitter products are specifically designed to create additional current loop signals from an existing current loop signal with minimal effect on the impedance of the existing loop. The has a single isolated output while the LPS has two isolated outputs. These Vdc powered modules accept a 00mA or 0mA input, and create 00mA or 0mA outputs. The output current loops repeat the input signal and are isolated from the input signal and Vdc power supply. Impedance changes on the output loops have no effect on the input loop. No Field Calibration necessary Wide operating temperature range High Accuracy CE Mark Compliant The has an internal 0 ohm precision resistor that can be connected to provide a convenient Volt output for connecting to a PLC s etc. with voltage input. These secondgeneration products utilises advanced electronic techniques to achieve high accuracy with minimum loop losses and zero field calibration. These products are designed for high reliability, and are suitable for use in SIL safety loops in accordance with IEC0. See the separate reliability datasheet for design parameters. Forming part of OMNIFLEX s extensive OMNITERM range of industrial instrumentation, the OMNITERM and LPS are designed to be D rail or surface mounted and are an economical.mm wide. Electrical Connections Vdc 0mA R 0 ohm Link for V Out 0mA or V LPS Vdc 0mA R 0mA 0mA Datasheet DSCBR0 sheet of

2 OMNITERM & LPS LOOP REPEATER/SPLITTER Model CB (Current Loop Repeater) & CB LPS (Current Loop Splitter). Mechanical Details. 0 SPECIFICATIONS Input Absolute Maximum input current range Input Volt drop Equivalent insertion loop resistance Output Output current Min. load resistance Max. load resistance Internal 0 Resistor Power Supply Operating Range Supply Current 0mA.V maximum at 0mA ohms at 0mA Matches input current 0Ω kω at 0 ma, Vdc supply 0.% 0ppm/ C 0Volts dc 0mA maximum plus the output current loops Performance (at 0 C; 0Ω load; Input range 0mA) Initial Accuracy Effect of load impedance Response time 090% Temperature Storage Operating Effect of Temperature Isolation Isolation Test Voltage <0uA <.0% of Full Scale per 00Ω change 0ms typical 0 to 0 C < 00ppm/ C 0 to 0 C 0rms Input/Output/Power Supply Functional Safety Standard IEC 0 Safety Integrity Level Compliance to Standards Safety EN 090 Emissions SIL (Separate Reliability Report available) EN 0 & EN 00 Group I, Class A Immunity ESD IEC 000, level Immunity RF Fields IEC 000, level Immunity Fast Transients Weight Unpacked Packed Housing IEC 000 kv DC power port kv input/output lines 0g approx. g approx. Width.mm (. ) Height Depth (from panel) Material Ordering Information Order Code CB CB mm(.9 ) 0mm(. ) ABS Flammability Class HB as per UL9 Model Omniterm Loop Repeater (single output with 0 ohm resistor) Omniterm LPS Loop Splitter (dual outputs) Datasheet DSCBR0 sheet of

3 OMNITERM & LPS LOOP REPEATER/SPLITTER Model CB (Current Loop Repeater) & CB LPS (Current Loop Splitter). Application Examples Basic Connection: Repeating a current loop NOTES:. Insertion loss in the input loop is minimal at. Volts ( ohms) maximum at 0mA.. Output loop has no effect on the input loop.. The LPS may be substituted for the in all of these applications where two isolated output loops are required. Insert into any 0mA loop. Insertion loss is ohms max (.V at 0mA) Vdc 0mA R 0 ohm 0mA Example : Repeating the current loop from a twowire transmitter wire Xmitter Vdc Any other loads 0mA R Example : Repeating the current loop from a fourwire transmitter 0 ohm 0mA Vdc 0 ohm wire xmitter 0mA R 0mA Datasheet DSCBR0 sheet of

4 OMNITERM & LPS LOOP REPEATER/SPLITTER Model CB (Current Loop Repeater) & CB LPS (Current Loop Splitter). Example : Repeating the current in a V input DCS/PLC/RTU loop. Vdc 0mA from the field R 0 ohm 0mA 0 ohms Volts to DCS/PLC/RTU Example : Connecting an output to a current input on a PLC/DCS or RTU Vdc 0mA R 0 ohm 0mA PLC/DCS/RTU with current input Example : Connecting an output to a voltage input on a PLC/DCS or RTU Vdc 0mA R 0 ohm 0mA PLC/DCS/RTU with voltage input Datasheet DSCBR0 sheet of

5 OMNITERM & LPS LOOP REPEATER/SPLITTER Model CB (Current Loop Repeater) & CB LPS (Current Loop Splitter). Application Notes Using the Omniterm or LPS to monitor SIL Safety Loops The and LPS modules have been certified to SIL for use in safety loops. There is an increasing awareness today of the importance of safety in dangerous processes. IEC0 is the most universally applied standard for the qualification of Safety Integrity in Safety Instrumented Systems. Individual control loops are usually certified to Safety Integrity Level (SIL) as specified in IEC0, with redundancy employed to increase this to higher SIL levels when appropriate. As part of the system design, it is common to want to monitor these critical current loops using independent systems. The difficulty arises of connecting the monitoring system to these critical loops without affecting their safety integrity level, accuracy or performance. The Omniterm and LPS have been certified to SIL for this application. Connecting an Omniterm or Omniterm LPS to your SIL safety critical current loop will not affect the safety of the loop. The output of the Omniterm or LPS can be safely connected to any SCADA, PLC, or RTU system without this connection affecting the integrity level of the original current loop in any way. Because the safety loop is not passing between input and output of the Omniterm or LPS, the accuracy, reliability and speed of the Omniterm or LPS do not affect the performance of the current loop. The reliability of the safety loop is considerably enhanced in this configuration. Because of the low insertion loss and full electrical isolation of the input stage of the Omniterm or LPS, only a minimal volt drop will occur in the loop by the addition of the Omniterm or LPS, making the monitoring of almost any existing current loop possible. Vdc 0 ohm Link for V Out R 0mA or V monitor loop. (Nothing you connect here will affect the safety of the input loop.) Datasheet DSCBR0 sheet of