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The New Mann Series Process Instruments

01 October 2008

A large step increase in functionality for Weidmuller’s analogue electronics products has been created by the company’s Mann Series, currently being introduced in Europe and Scandinavia.

Weidmuller’s Mann Series range has evolved from the acquisition of  Australian electronics and interface manufacturer Mann Industries, by Weidmuller’s Australian sales company.  Historically, Weidmuller’s analogue sales have been strongest in European industrial sectors, but Mann Series has been designed to appeal to wider world process markets, especially those in North America and S. E..Asia.  The Mann Series range is now available alongside Weidmuller’s well established Wave Series and Micro Series analogue brands, which together offers a world-class signal conditioning capability.  It is aimed at instrumentation users, who need to isolate, transmit, indicate or create alarms from analogue measurement and control signals, either separately from, or working with a control system. 

Mann Series is a broad range of both front-of-panel and din rail mounted analogue signal conditioners.   Available to suit almost any signal type or measurement sensor, Mann Series unique and robust designs range from simple display units to microprocessor controlled devices with universal applications, which can be reconfigured in-situ and include a host of useful built-in features (like timer delays and adjustable digital filtering). 
 

Included in the Mann Series range of Process Instruments are:
1) Signal Isolators - A range of isolators for standard, plant based, analogue current and voltage signals that eliminate faulty readings caused by ground loops or electrical interference. They can also be used to boost weaker signals for increased transmission distance or to allow additional devices to be connected to loops. The isolator’s power source can be the input signal, output loop or an auxiliary supply.

2) Signal Transmitters – Condition, filter and isolate any weak, low-level signals from typical measuring devices, for example thermocouple mV signals, and convert the measurement to a standard high level current/voltage format signal. These instruments are available as loop powered or auxiliary powered devices and vary from simple dedicated devices to highly configurable microprocessor-based designs.

3) Process Alarms – Monitor plant-based measurements and provide alarms or simple feedback loops with these dedicated dual channel alarm modules. Versions available range from input specific units with easily adjusted setpoint, deadband, coil energisation and alarm action, to the microprocessor alarms which allow for more complex applications that can even include rate of change/deviation alarms. The microprocessor based units all have timer delays, filtering, display in engineering units and on-site setpoint adjustment in engineering units as standard.

4) Multi-channel Processing Modules - These compact modules allow multiple inputs, outputs and alarms to be processed simultaneously and if necessary the results transmitted back to a control system as analogue or digital signals, or via the optional Modbus serial connection. Ideal for remote monitoring, the system engineering time, installation, cabling, set-up, control and maintenance costs can all be dramatically reduced using this easy-to-use technology.

5) Indicators and Auto/Manual Stations – A wide range of displays (indicating in engineering units) ranging from the simplest, loop powered LCD display to conditioners fitted with alarms and analogue outputs that can be fully configured from the front panel keypad. Auto/manual stations allow for manual takeover of auto-controlled loops for startup and failsafe applications, and smooth return to Automatic control when required.

6) Totalisers –These are fully programmable displays offering superior design features for all totalising, count and batch control applications. With standard dual alarm channels, analogue output, external reset input, pulse output and highly flexible input circuits for either frequency or analogue d.c. signals, these are especially suited to fluid flow measurements and control in the food or chemical sectors,

7) Portable Calibrators - To complement the range, Mann Series offers calibrators specifically designed for the instrument engineer.  These are lightweight, re-chargeable, hand-held signal sources and/or meters, ideal for the in-situ checking of most analogue instrumentation.

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