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  JANDEL HM21 Portable system
1. Introduction
  4-point probe head Àü¹®È¸»çÀÎ JANDEL»çÀÇ Test unit(HM21)¿Í °íÇ°Áú JANDEL Probe head¿Í ¿¬°áÇÏ¿© °£´ÜÇÑ »ç¿ë¹ýÀ¸·Î ¼Õ½±°Ô ¸éÀúÇ×À» ±¸ÇÒ ¼ö ÀÖ½À´Ï´Ù.
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2. Features  
Potable type probe contact system    
Data download port(USB)    
Probe stand (option)    
3. Configuration    
  The system consists of the following components.    
HM21 Test unit    
Membrane keyboard panel    
LCD display window(Measure result)    
Data download USB port    
Power using the supplied adapter or using four size AA rechargeable batteries    
Standard accessories    
  - Power adapter
- Data download cable
- Operating & service manual
   
4. Specifications    
Sheet resistance measurement    
  - Measuring method : Contacted by 4-point probe
- Measuring range : 1 ohm/sq ¡­ 10 Mohm/sq
- Measuring point : 1 point
   
Resistivity measurement(by software)    
  - Measuring method : Contacted by 4-point probe(Input thickness)
- Measuring range : 0.01 ohm¡¤cm ¡­ 10 kohm¡¤cm(bulk resistivity)
- Measuring point : 1 point
Current source    
  - 100nA to 10mA
- DVM 0.01mV to 1,250mV
   
Measurement accuracy    
  - 0.5 % highest accuracy is in the mid-range of measurements.    
JANDEL 4-point probe    
  - Pin spacing : 1mm
- Pin Load : 60 gram/pin ¡­ 150 gram/pin
- Pin radius : 100 micron
Software    
  - Windows Version
- Graphical interface software
- Use USB communication port
5. Specimen    
Minimum 5 ¡¿ 5 mm    
 
     
   
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