Moore Industries SIX Signal Isolator, Converter and Repeater
Overview
The Moore Industries SIX Signal Isolator, Converter, and Repeater is a versatile 2-wire, loop-powered device that solves three of the most common process signal problems in a single compact unit: eliminating ground loop interference, converting between dissimilar signal types, and boosting drive capability on overburdened loops. Because the SIX derives its power directly from the process loop, no additional power supply installation is required, simplifying retrofits in existing control panels.
Seven Star LLC supplies the Moore Industries SIX as an experienced supply partner to instrumentation and control panel integrators across Oman and the GCC. Every unit supplied through Seven Star LLC comes with Moore Industries documentation, with local technical support available for installations in Muscat, Sohar, and Salalah.
Measurement and Operating Principle
As an isolator, the SIX provides total galvanic isolation between the signal from a non-isolated transmitter and a receiving device, eliminating faulty readings caused by ground loops, motor noise, and other electrical interference common in industrial environments. As a converter, it acts as a precise interface allowing transmitters, transducers, controllers, recorders, and control systems with dissimilar signal types to communicate reliably with one another.
As a repeater or diverter, the SIX increases drive capability on a process loop to allow installation of additional instruments, and it can divert a secondary signal from a process loop to a recorder, indicator, or similar device without disturbing the primary loop. The SIX also solves the common “bucking power supplies” problem that occurs when interfacing a DCS with a 4-wire, line-powered transmitter – installing a SIX between the two units restores normal loop operation even when both sides are independently powered.
Engineering Design of the Moore Industries SIX
Housed in a compact DIN-style enclosure that mounts on 32mm G-type or 35mm Top Hat rails, the SIX delivers accuracy and linearity of ±0.1% of span, with exceptionally low 50-ohm input impedance for 4-20mA and 0-20mA inputs that avoids loading existing loops while regenerating clean signals. Isolation reaches 1500Vrms between input and output on standard units, or 500Vrms with the -RF option, which also boosts RFI/EMI protection to 20V/m from the standard 10V/m immunity rating.
The SIX accommodates an extensive range of input and output combinations spanning current signals (0-20mA, 4-20mA, 10-50mA), voltage signals (0-1V through 0-100V), and millivolt ranges, with removable terminal blocks speeding installation and maintenance. Output tracking ensures the isolator output follows the input below 3mA on input failure, and external multiturn potentiometers allow ±10% span and ±5% zero adjustment for precise field calibration.
Key Features
- 2-wire, loop-powered operation requires no additional power supply
- Total galvanic isolation stops ground loops and electrical interference
- Converts between dissimilar current, voltage, and millivolt signal types
- Solves bucking power supply conflicts between DCS and 4-wire transmitters
- Accuracy and linearity of ±0.1% of span
- Low 50-ohm input impedance regenerates signals without loading loops
- Isolation up to 1500Vrms; optional -RF for enhanced 20V/m RFI/EMI protection
- Compact DIN-rail mount with removable terminal blocks
Industrial Applications
The SIX is widely deployed across Oman’s process control panels and instrumentation retrofit projects to eliminate ground loop noise between field transmitters and DCS or PLC systems, and to interface legacy dissimilar-signal instrumentation with modern control systems. Its ability to resolve bucking power supply conflicts makes it a standard solution when integrating new DCS inputs with existing 4-wire transmitters across Sohar and Muscat industrial facilities.
As a trusted supplier of Moore Industries products, Seven Star LLC supports control panel builders and process facilities across Oman and the GCC with genuine SIX isolators correctly specified for the required input/output combination. This ensures signal integrity solutions are supported by manufacturer documentation and responsive local technical support.
Technical Specifications
| Model | Moore Industries SIX |
|---|---|
| Function | Signal Isolator / Converter / Repeater |
| Power | 2-wire, loop-powered (12-42VDC on output side) |
| Accuracy | ±0.1% of span |
| Isolation | 1500Vrms (standard) / 500Vrms (-RF option) |
| Input Impedance | 50 ohms (4-20mA / 0-20mA) |
| RFI/EMI Protection | 10V/m standard, 20V/m with -RF option |
| Ambient Temperature | -40°C to +85°C |
| Mounting | DIN-style, 32mm G-type / 35mm Top Hat rail |
Why Choose Seven Star LLC for Moore Industries Signal Isolators
A signal isolator only solves the problem it is bought for when its input and output signal types, isolation voltage rating, and hazardous-area certification are correctly matched to the specific ground-loop or interference issue on your plant floor, since the wrong configuration can introduce a new fault while appearing to fix the original one. Seven Star LLC confirms the correct SIX configuration against your actual signal path and area classification before shipment, backed by our trusted Moore Industries suppliership across Oman and the wider GCC. We also support instrumentation teams across Muscat, Sohar, and Salalah retrofitting signal conditioning into existing control panels, helping plan spare isolators for critical loops so a single failed unit never takes down an entire measurement or control chain, and our technical staff advise on isolation voltage selection where multiple ground-referenced systems must be safely interfaced together.
Contact Seven Star LLC today for a quotation for the Moore Industries SIX Signal Isolator, Converter and Repeater with expert technical support for signal integrity projects across Oman and the GCC.
Related Products
- Datasheet Moore Industries SIX Signal Isolator, Converter and Repeater Datasheet Download
Moore Industries product families on this page
The manufacturer's catalog is arranged by function, and the items listed here map onto it directly:- Temperature transmitters: the TRX, and the STZ functional safety dual input smart HART transmitter
- Alarm trips: the SPA2 programmable limit alarm trip, including an SPA2 with HLPRG input and four relay outputs
- Signal isolators, repeaters and converters: the SIX
- PID controllers and backup stations: the 535 in 1/4 DIN format
Where Moore Industries instruments are used
These are control room and marshalling cabinet devices, plus field-mounted transmitters. Typical jobs are isolating a 4-20 mA loop between two systems, converting a thermocouple or RTD signal for a DCS input, adding an independent high or low trip next to the control system, and keeping a control loop running on a backup station when the main controller is out of service. Process plants in oil and gas, chemicals and power across the GCC use them for exactly these tasks.Ordering Moore Industries instruments: what we need
Moore Industries model numbers are built from fields separated by slashes: unit, input, output, power and options, followed by the housing code in brackets. Every field matters. Send the complete string from the label, the serial number, and for programmable units the input type and range you want set. State any hazardous area or functional safety requirement, because approved versions are ordered with their own option codes.Browse Moore Industries products by category: Temperature Instrumentation, Controllers & Data Acquisition, Isolator & Barrier.
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