Knick Interface Products Proline
High-precision signal conditioners and transmitters for demanding applications and maximum reliability.
Universal signal conditioners for measuring DC voltages and currents with galvanic isolation, active and passive isolators for standard signals, repeater power supplies for 2-wire sensors, transmitters for temperature and AC signals, transducers for high voltages and shunt applications. Switchable calibrated input ranges and flexibly selectable standard signals on the output allow for a broad range of applications. Inventory costs are reduced and operation is simplified.
The ProLine’s intelligent circuitry minimizes failure rates and achieves MTBF values of up to 1030 years. The high quality is ensured by careful product development, comprehensive design verifications and 100% routine tests. Warranty: 5 years.
International certifications such as UL, CSA, CE, GL, SIL, KTA, ATEX, GOST allow the devices to be used worldwide. This applies particularly to the models with broad-range power supply. Isolators of the ProLine series provide crucial benefits for applications with high demands on isolation, signal transmission speed and long-term stability.
High Voltage Transducers
Measurement of DC or AC voltages up to (±)4800 V and of high DC currents up to approx. (±)20 kA via shunt resistor or directly in the device up to (±)5 A DC and AC. Versions with calibrated range selection. Working voltage up to 4800 V AC/DC.
The Most Space-saving High-voltage Transducer for Rolling Stock
- For all DC- and AC-driven rolling stock, including diesel-electric vehicles
- Measurement up to 4500 V DC and 3000 V AC
- Test voltage: 20 kV AC
- Suitable for applications with functional safety up to SIL 2 / SIL 3
- Reinforced insulation: up to 3700 V AC/ 4800 V DC
- Space-saving, especially with stacked mounting
- Flexibly adaptable to available space: vertical or horizontal mounting with screw fastening, alternatively DIN rail mounting
- Optional partition extends the clearance without additional space requirements and avoids “critical” mounting of the ring cable lugs
- Robust thanks to full vacuum encapsulation
- Certified for use on rolling stock according to EN 50155
- 5-year warranty
High Voltage transducer for current measurement with shunt resistor in systems up to 4800 V
Universal Isolated Signal Conditioners
Unipolar and bipolar DC input signals from 20 mV to 200 V or 0.1 mA to 100 mA, calibrated switching. Working voltage up to 1000 V AC/DC
The “Multimeter” among the signal conditioners. With 480 switchable calibrated ranges and broad-range power supply.
- Flexible and extremely precise Calibrated range selection without complicated readjustments
- Broad-range power supply VariPower 20 … 253 V AC/DC
- Compact design 12.5 mm modular housing; up to 80 active isolators per meter of mounting rail
- Quick and easy configuration Housing can be easily opened
- Pluggable screw terminals Simple, time-saving assembly and prewiring of enclosures
- 3-port separation Protection against incorrect measurements or damage
- Maximum accuracy
Isolated Standard Signal Conditioners
Isolation and conversion of standard signals. Calibrated switching of input and output signals 0/4…20 mA and 0…10 V. Signal doublers with two galvanically isolated outputs.
Isolated Standard Signal Conditioner
The first standard-signal isolation amplifier with broad-range power supply in the 6-mm class.
- Broad-range power supply 24 to 110 V DC (+/-25 %) and 110 to 230 V AC (+/-10 %)
- Standards-compliant personal and plant protectionProtective separation according to EN 61140
- 3-port isolation Prevention of incorrect measurements caused by potential differences
- Ideal value for money High accuracy and isolation – 2.5 kV AC test voltage
- Easy installation DIN rail bus connectors allow for easy and extremely cost efficient connection of the power supply to several VariTrans A 21000 or other Knick products in 6 mm housings.
Temperature Transmitters
Transmitters for platinum temperature sensors and thermocouples in a 6 mm housing with calibrated range selection. Functional safety up to SIL 2, redundant up to SIL 3. Parameter setting via interface or intuitive adjustment directly on the device. Universal application with 24 V DC or broad-range AC supply.
Temperature Transmitter
The universal transmitters for temperature measurement with resistance thermometers and thermocouples – in a 6-mm housing with infrared interface and SIL approval.
- Universal usability from simple to challenging measurement tasks with all known temperature sensors
- Convenient setting of all parameters via IrDA interface
- Uncomplicated, menu-guided adjustment also “on site” including archiving of configuration data
- Intuitive configuration of the basic parameters
- Easy, 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)
- Protective separation according to EN 61140
- Protection of 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 case of redundant configuration) with TÜV certificate
- Systematically developed according to EN 61508
- High accuracy due to innovative circuit design
Loop-Powered Isolators for Standard Signals
Galvanic isolation and 1:1 transmission of 0/4…20 mA current signals without auxiliary power supply. Also for hazardous locations. Very high reliability and certified functional safety up to SIL 3 / PLe.
Loop-Powered Isolator for Standard Signals
Functional safety and maximum availability can go together
- Functional safety up to SIL 3 acc. to EN 61508 with certificate from an accredited testing body
- Average failure rate MTBF: 965 years
- Low transmission error 0.08 % full scale
- High isolation including protec-tion against electric shock by reinforced insulation up to 600 V AC/DC
- Test voltage 5.4 kV AC
- Minimal losses and low installation effort thanks to loop-powered operation
- Robust design
- Mechanically stable approved by an independent test-ing laboratory, suitable for marine applications
- Ambient temperature range during operation: -40 … +85 °C
- Resistant against electromagnetic interferences, meeting stringent SIL requirements
Transducers for Shunt Applications
High Voltage Transducer
High Voltage transducer for current measurement with shunt resistor in systems up to 4800 V.
- Overload-protected current measurement via shunt resistor from amps to kiloamps with up to 10 switchable calibrated ranges
- Short circuit recognition
- Monitoring and control of traction motors and converters
- Rated isolation voltage up to 4800 V AC/DC
- Housing offers protection against contact and pollution for added safety
- Circuit monitoring with self-diagnostics
- Selectable input ranges and floating standard signal outputs for flexible, easy system integration
- Integrated broad-range power supply
- Resistant in tough conditions: extreme temperatures, shock, vibration and harsh EMC environments
Repeater Power Supplies
Repeater Power Supply
Repeater power supply in a 6 mm housing with calibrated switching of output signals, HART transmission and protective separation.
- Extremely flat 3-port isolation in a 6 mm modular housing
- Flexible and extremely precise Calibrated switching of output signals
- Quick and easy configuration using lateral DIP switches – easy to access, yet protected against accidental adjustment
- Low-cost assembly Supply of the current loop and galvanic isolation of the measurement signal in one device
- Protective separation up to 300 V according to EN 61140
- SMART transmitter (acc. to HART specification)
Universal Transmitters
Universal transmitters for temperature, strain gauges and potentiometers – in a 6-mm housing with infrared interface and SIL approval.
Universal Transmitter
- 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 without complicated adjustment
- Automatic detection of the sensor connection (2-, 3- or 4-wire)
- Simulation of any desired output values for correct installation/commissioning
Strain Gauge Transmitters
Transmitters for load cells and strain gauges in a 6 mm housing with calibrated range selection.
They capture the signals from sensors which measure physical parameters such as path, angle, pressure or force. Functional safety up to SIL 2, redundant up to SIL 3. Parameter setting via interface or intuitive adjustment directly on the device. Universal application with 24 V DC or broad-range AC supply.
Strain Gauge Transmitter
The universal SensoTrans DMS P 32200 strain gauge transmitters provide connection possibilities for all standard strain gauge force transducers and strain gauge load cells in full bridge configuration.
They can be flexibly adapted to the respective measuring task using DIP and rotary encoder switches or via an IrDA® port.
- Universal usability for strain gauges, pressure and load cells, and other resistive measuring bridges
- 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
- Easy, without tools, using 4 rotary and 8 DIP switches
- Calibrated range selection
Resistance Transmitters
Transmitters for resistors and potentiometers in a 6 mm housing with calibrated range selection. Functional safety up to SIL 2, redundant up to SIL 3. Parameter setting via interface or intuitive adjustment directly on the device. Universal usability with 24 V DC or broad-range AC supply.
Resistance Transmitter
The universal SensoTrans R P 32300 resistance transmitters provide connection possibilities for all standard potentiometers for angle, path or position detection up to 50 kohms. They can be flexibly adapted to the respective measuring task using DIP and rotary encoder switches or via an IrDA® port.
- Universal usability with potentiometers, resistive sensors, remote resistance transducers, and similar sensors
- Convenient setting of all parameters via IrDA port
- Uncomplicated, menu-guided adjustment also “on site”
including archiving of the configuration data
- Uncomplicated, menu-guided adjustment also “on site”
- Intuitive configuration of basic parameters
- Easy, without tools, using 4 rotary and 8 DIP switches
- Calibrated range selection
AC/DC Transducers
For isolation and conversion of sinusoidal and non-sinusoidal alternating currents and voltages into standard signals. True root-mean-square value conversion / True RMS. Models with calibrated range selection, broad-range power supply and high working voltage of 3600 V AC/DC.
AC/DC High Voltage Transducer
AC/DC high voltage transducer for True RMS measurement. Input signals from VIN = 60 mV AC up to VIN = 10 V AC.
- Universal usability:
- AC Input 60 mV~ to 10 V~
- DC output 0 (4) … 20 mA, 0 … 10 V
- New TransShield technology
allows for extremely compact modular housing - Working voltages up to 3600 V AC/DC
- Protection against electric shock
through protective separation up to 1800 V AC/DC according to EN 61140 - Test voltages up to 15 kV AC
- Excellent transmission properties:
- Gain error Crest factor ≤ 3 < 0.5 %
- Gain error Crest factor 3 … 5 < 1 %
- Response time T90 < 150 ms
Frequency Conditioners
Frequency Conditioners receive signals from speed sensors and transmits and converts them into electrically isolated analog standard signals.
Speed Signal Doubler
Doubling, Conversion, and Isolation of Speed Sensor Signals
- Doubling of speed signals and thus simplification of system integration in rolling stock
- Optional conversion of the speed signal and thus increased compatibility of speed sensors
- Galvanic isolation of the speed signal and thus protection of downstream components
- Functionally safe signal processing according to EN 50129 (SIL 4 and SIL 2)
- Compact modular housing for DIN rail or wall mounting
- 5-year warranty
