SMLD 100

 

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SMLD 100
SMLD 300
SMLD 300G
PULSE GENERATOR

SMLD 100 is a miniature, micro-dispensing valve with one piece valve/coil assembly. Like all SMLD type valves, the SMLD 100 is using a unique technology of hard on hard surface interface. The Ruby ball and Sapphire seat support a very reliable and precise operation. The overall dimensions of the valve enable their high density mounting with down to 4.5 MM center to center spacing. The opening and closing time of the valve can be brought down to 200 usec, allowing precise dispensation of volumes down to 25 nano-liters.

Technical Specifications

Dimensions:

 Overall Length                         1.6”     

Width from the side                   0.15”

Width from the front                  0.5”

Dispensing cylinder Dia.            0.15”

  

Electrical parameters:

 Coil resistance                                        10 Ohm

 Actuation                                              12-24VDC*

  (Mating male 0.5mm connectors are supplied)

 Maximum working temperature                 80 0C

 Duty cycle*                                             100%

 Operating dispensing frequency                  ~2000 Hz

 

* When using TechElan DRV type drivers (0.2 mSec full voltage pulse, followed by low sustaining voltage).  DRV are pre-set for optimal operation and employ a  PWM modulated step down voltage function.

 

Note: Both PCB mounted and stand-alone wired versions of DRV drivers are available from TechElan. 

 

Fluidic parameters:

The opening gap  of the valve can vary with the default travel of 30 micron. It is highly recommended to pre-filter the dispensed liquid, using external or built-in filters, which can range between 20 to 50 um].

 

 

Connection- barbed                                       1/32” ID tubing

Flow (Water at 10 PSI)                                   200 nl/msec (12ml/min)

*Note: The flow can be adjusted:   

-         By adjusting the liquid feeding pressure,

-         Through intermittent “pulsing” flow.

Optimal operating pressure (Fluid dependent, Max of 100 PSI)   3 - 30 PSI

Dispensation orifice (sapphire)                         150 um

Armature travel                                             40 um

Internal volume                                              40 ul

Minimum dispense volume (CV <5%)                   25 nl

*Note: Minimum CV < 2% with feedback correction.

Maximum viscosity                                          50 centistokes

*Note: Dependent on fluid, particulates, surface tension, non-Newtonian fluids, etc.

 

Please contact us for more information.

 

SMLD-100

Dimensions

Flow/Pressure