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Universal Transmitter

PolyTrans P 32000

Universal transmitters for temperature, strain gauges and potentiometers - in a 6-mm housing with infrared interface and SIL approval.

Facts

  • Universal usability
    from simple to challenging measurement demands with all known temperature sensors, strain gauge sensors, potentiometers, and similar sensors
  • Convenient parameter setting
    via IrDA port – uncomplicated, menuguided adjustment also “on site“ including archiving of configuration data
  • Intuitive configuration
    of basic parameters – easy, without tools, using 4 rotary and 8 DIP switches
  • Calibrated range selection
    without complicated adjustment
  • Automatic detection
    of the sensor connection (2-, 3-, or 4-wire)
  • Simulation of any output values
    for correct installation/commissioning
  • Protective separation
    according to EN 61140 – protection of the maintenance staff and downstream devices against excessively high voltages up to 300 V AC/DC
  • Functional safety
    up to SIL 2 (up to SIL 3 in the case of redundant configuration) with TÜV certificate – systematically developed according to EN 61508
  • High accuracy
    with innovative switching concept
  • Reduced inventory
    one transmitter covers all conceivable tasks
  • Minimum space requirement
    in the enclosure – only 6 mm wide modular housing – more transmitters per meter of mounting rail
  • Low-cost assembly
    Quick mounting, convenient connection of power supply via DIN rail bus connectors
  • 5-year warranty

 

The Task
Temperature, strain or force and position are parameters which must be measured in virtually all areas of industry. They are often used as refer-ence input for control or monitoring systems, safety shutdown systems, or for similar critical jobs. As a rule, high demands are placed on accuracy, flexibility and functional safety as well as electrical safety.  

Different sensors are used depend-ing on the measuring task. These sensors provide a raw signal which is prepared, linearized if required, and standardized for further processing using a transmitter.

The Problem
There is a very wide range of standard-ized and commercial sensors for the detection of temperature, strain or force and position. The large number of sensors, connection variants, individual temperature ranges, different supply voltages, and required output signals call for very flexible transmit-ters that can be optimally suited to the different conditions.

However, the required flexibility should not be paid for with complex operation. Rather, being able to easily make adjustments on site is desirable. In addition, this high level of performance should not result in increased susceptibility – high reliability and availability are essential.

The Solution
The PolyTrans P 32000 universal transmitters provide connection possibilities for all standard thermo-couples, resistance thermometers, strain gauge full bridges, resistors and potentiometers/resistive sensors. They can be flexibly adapted to the respective measuring task using DIP and rotary encoder switches or via an IrDA interface.

3-port isolation with protective separation up to 300 V AC/DC according to EN 61140 ensures optimum protection of personnel and equipment as well as unaltered transmission of measuring signals. The PolyTrans P 32000 offer maximum performance in the smallest of spaces. Resistance thermometers can be operated in 2-, 3- or 4-wire configu-ration. The connection configuration is automatically recognized, adjust-ment is not required. All commercial thermocouples can be detected with internal or external reference junction compensation.

To detect mechanical quantities such as force or strain, strain gauges can be connected in full-bridge configuration. The possibility of connecting variable resistors and potentiometers creates a wide range of application possibilities, e.g., in the field of displacement or position detection. Input voltage signals up to ±1000 mV are converted into standard 0/4
to 20 mA or 0 to 10 V signals. This enables low-cost implementation of current measurements using shunt resistors, for example.

 

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