Holds vacuum (reverse motion of the stepper motor) constant throughout the entire syringe reservoir. The result is the dot volume will slightly decrease as the syringe empties leading to the +/-5%* repeatability from one dipense to the next.
Firmware behind Back-off Ratio Mode: The firmware maintains the dispense volume and vacuum as constants throughout the entire syringe.
How it works: Set your program, save your program and dispense.
When to use: When +/-5% repeatability, or greater, is required from one fluid deposit to the next.
ProcessControl2™ gradually reduces vacuum (reverse motion of the stepper motor) as the syringe empties. The result is the dot size remains the same size producing repeatability up to +/- 2%* from one dipense to the next.
Firmware behind Back-off Ratio Mode: In ProcessConrol2™ Setup Mode three fluid dispenses (top, middle, bottom of syringe) sets volume and vacuum settings for the entire syringe. After each dispense the operator manually reduces vacuum, saving the new program into the SmartDispenser™ Control Center. The microprocessor and firmware remember exactly where those changes took place in the syringe. When complete, the ProcessConrol2™ Run Mode is activated, an algorithim calculates how much vacuum, per the microprocessor, should be reduced with each foward step of the motor. The result is a gradual, smooth reduction of vacuum with each forward step producing the highest repeatability possible from a syringe.
Primary Difference: The primary difference between Traditional LDS9000® and ProcessControl2™ is the amount of vacuum automatically changes by an advance algorithm as the syringe empties.
How it works: Perform three fluid dispenses (top, middle, bottom of syringe) setting your program, save your program and dispense.
When to use: When repeatability of +/-5% or less is required from one fluid deposit to the next. Also recommended for two-component, thixotropic or compressible fluids.
*fluid deposit repeatability is fluid dependent. Different fluids will have different results.
Use Traditional LDS9000™ when +/-5% repeatability, or greater, is required from one fluid deposit to the next.
Use ProcessControl2™ when repeatability of +/-5% or less is required from one fluid deposit to the next. Also recommended for two-component, thixotropic or compressible fluids.
