NJ-K-4010 and NJ-K-4020 piezo valve dispense head
NJ-K-4010 and NJ-K-4020 piezo valve dispense head
- Automatic valve identification and specific piezo calibration data recognition.
- Advanced timing with an upgraded processor for precise and linear time base.
- Cycle count storage for maintenance planning based on dispensing processes.
- Compact design with a thickness of 10 mm, allowing for multiple valve arrays.
- External control via interfaces such as RS232C, RS485, and SPS.
- Patented quick-exchange system for nozzles, minimizing downtime due to clogging.
- Resistance to unusual operating errors.
- High accuracy due to controlled valve core.
- Frequency range from single pulse to 450 Hz, with higher frequencies available on demand.
- Valve remains closed in power-off mode to prevent dripping and pollution.
- 24-hour non-stop application capability.
- Long lifespan with regular maintenance.
- Exchangeable nozzles for various applications.
- Excellent chemical stability.
- Software-controlled temperature and pressure-independent dispensing.
- Dispensing quantity range: 10 nl to 10 µl per pulse.
- Feed pressure range: 300 to 3500 HPa.
- Viscosity range: 1 to 2000 mPas.
- Switching time: approximately 1 ms.
- Dispensing frequency: 450 Hz (27,000/min).
- Operating temperature range: 10 to 50 °C.
- Weight: 220 g.
- Dimensions: 103 x 39 x 10 mm.
- Remote control protocol: SCPI.
- Interfaces: RS232C, RS485, i2C/SM-Bus, 24V SPS, with optional interfaces like IEE-488, RS422, RS458, Ethernet, and Can-Bus.
Catalog excerpts
ADVANTAGES high accuracy due to controlled valve core Օ frequency from single pulse to 450 Hz (higher frequencies on demand) valve closed in power-off mode Ֆ no dripping and uncontrolled pollution 24-hours non stop application possible Օ very long life time easily exchangeable nozzles for various applications Օ very good chemical stability software-controlled temperature- and pressure independent dispensing due to external Control-Unit NJ-E-4... Օ intelligent upgraded processor with advanced timing and automatically identification Technology This high performance valve was developed for the dis-pensing of liquids in a viscosity range of up to 2000 mPas. The volume range reaches from 8 nl up to 10 l per dis- pensing cycle. The liquids are transferred without impact of the nozzle just as with all other microdrop microdispenser systems. In combination with the very precise switching perfor- mance of the piezovalve this results in a very high volume accuracy of < 1%. The improved system allows automatically identification of the valve and its spezific piezo calibration data. The intelligent upgraded processor guaratees a very precise and linear time base (advanced timing). The number of dispensing cycles are counted and stored in the valve (cy- cle count), which enables the user to include individual maintainance concepts in dependence of the dispensing process. The flat design, with a thickness of only 10 mm, allows the combination of several valves in a compact array. External control via a host computer is possible with interfaces like RS232C, RS485, SPS or others.The dispenser nozzles can be exchanged even by an unskilled user. This is possible due to the patented quick- exchange system which reduces down times, due to nozzle clogging, to a minimum. Besides, the system ensures resistance also agains un- usual operating errors. >
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