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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.


  • Universal usability from simple to challenging measurement tasks with all known temperature sensors, strain gauges, potentiometers, and similar sensors
  • Convenient setting of all parameters via IrDA interface
    • Uncomplicated, menu-guided adjustment also "on site" including archiving of the configuration data
  • Intuitive configuration of the basic parameters
    • Easily, without tools, using 4 rotary and 8 DIP switches
  • Calibrated range selection
    • No complicated adjusting
  • Automatic detection of the sensor connection (2-, 3- or 4-wire)
  • Simulation of any desired output values for correct installation/commissioning
  • Protective separation according to EN 61140:  protection of the maintenance staff and subsequent 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 due to innovative circuit design
  • Reduced inventory: one transmitter covers all conceivable tasks
  • Minimum space consumption in the enclosure

5-year warranty

The PolyTrans P 32000 universal transmitters provide connection possibilities for all standard thermocouples, resistance ­thermometers, strain gauges, 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 measurement signals.

The PolyTrans P 32000 offer maximum performance in the smallest of spaces. Resistance thermometers can be operated in 2-, 3- or 4-wire configuration. The connection configuration is automatically recognized, adjustment is not required. All commercial ­thermocouples can be read 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 ability to connect variable resistors and potentiometers creates a wide range of application possibilities, for example in the ­field of displacement or position detection. Input voltage signals up to +/– 1000 mV are converted into 0/4 to 20 mA or 0 to 10 V standard signals. This enables low-cost implementation of current measurements using shunt ­resistors, for example.

Knick offers the PolyTrans P 32000 transmitter with SIL approval for applications with high demands on functional safety. The requirements of EN 61508 were implemented through specially developed hardware and software. The implemented fail-safe concept makes use of structural measures at the device level (redundancy of system components) and diagnostic ­methods for selective fault detection. The product is SIL2 approved (EN 61508) by an authorized body (TÜV Rheinland). SIL3 in redundant implementations.




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