MTL4850 HART Multiplexer MTL4850 Isolated Power Supply In Stock



 

 

Overview of MTL4850 HART Multiplexer MTL4850 Isolated Power Supply In Stock
 

The MTL4850 HART Multiplexer offers a smaller footprint solution ideally suited to both retrofit and new project applications. Termination boards, carriers and integrated backplanes are available to enable the MTL4850 to interface to various instrumentation applications.

 

The MTL4850 Hart Multiplexer is now SIL3 rated for connection to instrument loops performing safety functions up to and including Safety Integrity Level SIL3. The international standard IEC 61508:2010 provides guidelines to achieving an adequate Safety Integrity Level (SIL) for systems, sub-systems and components. Functional Safety management requirements are found in IEC61508 which states that suppliers and subcontractors shall demonstrate functional safety management.

 

We conform to the requirements of the international standard IEC 61508:2010 for functional safety by being certified as a Functional Safety Management company.

 

For more information about MTL Functional Safety Management .

 

The MTL4850 Multiplexer offers the following benefits: MTL4850 HART Multiplexer MTL4850 Isolated Power Supply In Stock

 

*  Channel to channel isolation

*  Isolated power supply

*  Auto baud-rate detection

*  LED indication for fault diagnosis

*  Supports HART Rev. 5-7 devices

*  SIL3 certified for connection to safety loop

*  Onboard event log

*  ATEX, FM and CSA certification.
 

Brief Description of MTL4850 HART Multiplexer MTL4850 Isolated Power Supply In Stock

 

Manufacturer : MTL Instruments

Product No : MTL4850

Product type : HART® Multiplexer

Number of channels : 32

Channel transmitter type : HART rev 5 – 7

Channel interface : 2 connections to each channel field loop (64 total)

Host system interface : RS485 2-wire multidrop (up to 63 MTL4850 modules can be connected to one host)

RS485 baud rate : 38400, 19200, 9600, 1200 baud - (auto-detected)

Address selection : 8-bit interface, up to 64 addresses

Channel-to-channel isolation : 50V dc

Field loop isolation : 50V dc Module is coupled to loops via capacitor in each connection leg (i.e. 2 capacitors per channel)

Supply voltage : 19V to 35V dc

Currrent consumption : 60mA at 24V ±10%

Power dissipation : <1.6W at 24V ±10%

PSU protection : Reversed polarity protected Fused (375mA)

Temperature range Operating: –40°C to +70°C Non-operating: –40°C to +85°C

Relative humidity : 5% to 95% - non-condensing

Dimensions (HxWxD), approx : 10.62cm x 12.4cm x 1.8cm

Weight : 0.125 Kg

 

Application and function of MTL4850 HART Multiplexer MTL4850 Isolated Power Supply In Stock

 

The MTL4850 HART multiplexer is used to create a two-way communications channel between numerous items of HART-enabled field equipment and a plant asset-monitoring/control system. Each multiplexer module can incorporate the HART data for up to 32 field channels into a single RS485 signal for onward linking to PC based instrument management software, thereby simplifying the wiring and reducing the cost-per-channel.

 

The MTL4850 combines the functions of a HART modem, a power supply conditioner and all the necessary signal-switching and addressing circuitry to multiplex the HART data. It provides a compact, convenient and cost-effective building block that can incorporated easily into both new and existing installations, especially as a partner for MTL’s 4500 Series intrinsic safety interfaces. It is the modern version of MTL’s popular MTL4840 Series equipment and further simplifies the system.

 

 

The MTL4850 multiplexer enables the user to gain access to valuable HART data provided by modern field devices in addition to the conventional 4/20mA loop signal provided by them. Many early process installation projects around the world did not take advantage of the data from HART-capable devices at start-up, so the MTL4850 offers a simple upgrade path to that data for asset management as well as the obvious live status and configuration information of the field devices.

 

Most distributed control systems (DCS) now on the market incorporate the ability to pass HART communications information on the analogue input and output channels, but many safety systems (SIS and F&G) do not. Increasingly therefore, one of the main uses for the HART multiplexer is to provide HART communications for the field instruments connected to safety systems. In such implementations, it is crucial that the HART multiplexer does not interfere with the analogue loops of the safety system.

 

 

 

Variant Description of MTL4850 HART Multiplexer MTL4850 Isolated Power Supply In Stock
 

There are two versions of the product which are essentially the same but the modules differ in mounting in the following way:

- MTL4850 is the general purpose MTL product supplied in a blue enclosure

- MTL4850-TR is supplied solely to Invensys (Triconex) in a black enclosure.

 

Physically and electrically the products are the same but may contain different revision levels of the operating firmware.There is no difference between the products in regard to their application for functional safety.

 

The functional safety assessment applies to MTL4850 with revision status 03 onwards and firmware version 1.02 onwards, as denoted on the product side label.

 

 

Product Code Description of MTL4850 HART Multiplexer MTL4850 Isolated Power Supply In Stock
 

intrinsically safe logo Symbol denotes that the equipment is suitable for use in hazardous area applications.

fsm logo Symbol denotes that the product has been assessed for functional safety applications

 

DTM Software  MTL Generic Comms DTM for all MTL HART multiplexers

INA4850  MTL4850 range - Instructions for Safe Use

MTL4850         MTL4850 is FSM HART Multiplexer

MTL4850-TR  HART Multiplexer (Triconex)

SM4850  MTL4850 - Safety Manual Safety

MTL4850 HART Multiplexer MTL4850 Isolated Power Supply In Stock

 

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