3. The following display appears for approximately three seconds. The display reappears anytime a non-numeric key is
pressed.
4. To unlock the keypad, enter the same code. The following display appears:
This equipment should not be operated on a "learn as you go" basis. Be familiar with and practice all safety procedures
presented in the SAFETY section before operating the dispensing system.
PROGRAMMING
The COMPULAB 3 can save up to 30 programs of any combination of pump, dispense, and dilute. Table 4 lists all the
required and optional parameters in each of the programs.
Type of Parameter
Required
Optional
GENERAL
Programs may be designed and saved, or may be run immediately without saving. After the program is run, the user can
modify the program, try it again, and when satisfied, save it. A designed program that is not saved will be lost if power to
the dispenser is removed. After the program is saved, it may be run, modified, and saved under the same or another
number.
Settings for optional parameters such as acceleration ramping, deceleration ramping, and no-drip are usually
determined through trial and error. Acceleration and deceleration are programmed separately. Acceleration is the
amount of time in seconds it will take the pump to reach the programmed speed. A setting of 0.0 (zero) instructs the
pump to reach the programmed speed as quickly as possible. Deceleration is the amount of time in seconds it will take
the pump to slow to zero from the programmed speed. A setting of 0.0 (zero) instructs the pump to stop as quickly as
possible. Use acceleration/deceleration to minimize splash of dangerous materials or to improve accuracy when
dispensing viscous materials.
A no-drip value instructs the pump to reverse direction before stopping, preventing fluid in the tubing from dripping after
the pump has stopped. The best no-drip setting is dependent on tube size, rate, physical setup, and viscosity of the fluid
being pumped. No-drip can be set from 0 (zero) to 10, where 10 equals one pump revolution.
KEYPAD IS LOCKED
KEYPAD IS UNLOCKED
OPERATION
Table 4. Program Parameters
Pump
Pump type
Tube size
Rate
—
—
—
Acceleration time
Deceleration time
No-drip
Pump direction
—
—
—
—
—
Program
Dispense
Pump type
Tube size
Rate
Volume
Pump direction
—
Acceleration time
Deceleration time
No-drip
Cycle
Auto/Manual
Delay
Beep
Units
Balance
9
PUMP
PUMP
Dilute
Pump type
Tube size
Rate
Sample
Delivery
Pump direction
Acceleration time
Deceleration time
No-drip
Hold
Cycle
Auto/Manual
Delay
Beep
—