The FS Functional Safety Series, from Moore Industries, features instruments that have been designed and built in compliance with IEC 61508, the leading worldwide functional safety standard

Designing instruments in accordance with the standard from the ground up forces the components, firmware and circuit design to undergo additional scrutiny that affords the highest levels of reliability. Selecting products from the FS Functional Safety Series gives safety practitioners confidence that their instruments will perform as expected and when demanded.
The new STZ offers a dual sensor input that reduces process interruptions. Backup and Fail-Over Protection allows either of the sensors or inputs to be designated as the primary measurement, with the secondary input acting as the backup sensor in case of primary sensor failure. The dual sensor input also allows for Average and Differential measurements along with High-Select and Low-Select options.
The STZ also features Moore Industries Device Intelligence, a series of features designed for smarter control and monitoring including:
  • Sensor drift and corrosion detection that checks and alerts users when the sensor is drifting out of a preset range or when the resistance due to corrosion exceeds set parameters
  • Smart range alarms with four HART alarms – set to any input or calculated input – that detect when the variable is within or outside of user preset limits
  • A High Availability option that enables the selection of how the AO behaves when there is an input failure or out-of-range value detected by the transmitter. This helps prevent spurious trips or nuisance alarms in Safety Instrumented Systems (SIS).
  • Input simulation capability allowing manual input of a direct or calculated value. This essentially simulates a real input, allowing users to test the AO or any HART diagnostic and range alarms – which assists in proof test procedures
The STZ is HART 7 compliant with exception-based reporting and dynamic variable mapping. It is HART and DTM programmable with user-oriented basic configuration for fast and accurate setup. Utilizing the HART DD, it can be configured and interrogated on the 4- 20mA loop via any HART handheld communicator or HART compatible host. To prevent unauthorized or accidental reconfiguration of the STZ while it’s performing its safety function, it has an added security feature to allow users to set HART communication into a Read Only or Off mode. Users can also program or monitor the transmitter with any FDT compliant host or program such as PACTware using the STZ DTM.
Our FS Functional Safety Series instrumentation gives you layers of protection that reduce risk and deliver reliable performance when you need it most. Key features for these products include:
  • Designed and built from the ground up for use with confidence in your Safety Instrumented System.
  • Full third-party certification to IEC 61508 eases the burden of proven in use on unapproved products.
  • SIL 2 and SIL 3 capable product family designed to meet your safety loop instrumentation needs.
  • Instrumentation designed and built for reliable performance year after year.

The FS Functional Safety Series produce line also includes:

STA Functional Safety Trip Alarm: The exida certified SIL 2 and SIL 3 capable STA Safety Trip Alarm performs as a logic solver and acts on potentially hazardous process conditions in Safety Instrumented Systems (SIS). The STA models accept a signal input from transmitters, temperature sensors and a wide array of other monitoring and control instruments.
SSX/SST Functional Safety Isolator and Splitter: These exida certified SIL 2 and SIL 3 capable family of 2-wire and 4-wire Isolators and Splitter provide isolation and signal conversion for your SIS (Safety Instrumented System) needs. These units protect and enhance loops and also pass valuable HART data from the field transmitter to host systems and vice-versa. They isolate your SIS from your Basic Process Control System or monitoring system so disconnections or failures to these secondary systems don’t affect your safety system.
SRM Functional Safety Relay Module: The exida certified SIL 2 capable SRM Safety Relay Module provides a high level of availability for safety-critical applications and as a part of Safety Instrumented Systems (SIS). The SRM is a relay repeater model that accepts a single contact closure input from a logic solver such as the Moore Industries STA Functional Safety Trip Alarm. The SRM provides three contacts per alarm input, allowing you to simply and cost effectively add additional alarm contacts to your safety processes.