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Version
00
© Verder Liquids B.V
Ds500, Ds500+ Operating manual
Original instructions (en)
10.3.1.2 Contact
Contact mode is used to deliver a predefined dose based on a
recieved pulse (required pulse width 40ms - 1000ms):
Figure 19. -
Contact Configuration
Dose Volume: Adjust range 000.01 - 999.99ml
Flow Rate: Adjustable range 000.01 - 65rpm
Pulse Memory: Enable to queue doses; if the unit is dosing
whilst a pulse is received, another dose will be added to the
queue.
10.3.1.3 Flow calibration
Calibration is essential in order to ensure accurate and
consistent flow rate delivery.
Upon entering the flow calibration screen a popup will appear:
This is advice only so that the benefits of calibration are realised.
Figure 20. - Flow Calibration
1. Enter the volume to be delivered in order for calibration to be
performed.
2. Set the flow rate OR the duration for which the above
specified volume will be delivered.
3. Press the Start button; the specified volume will be delivered
and the following screen will be displayed:
Figure 21. - Calibration delivery volume
4. Enter the actual delivered volume so that the offset ratio can
be calculated. The offset ratio will be displayed on screen:
1
2
Figure 22. -
Flow Calibration Offset
The user can confirm or reject this new flow offset; if the offset
is rejected, the previous offset will be retained. Offset range:
0.1 to 10.0
NOTE:
Accuracy is further improved by increasing the
calibration volume.
10.3.1.4 Fluid recovery
CAUTION
Ensure the system, to which the unit is connected, is compatible
with reverse flow!
Figure 23. - Fluid recovery
This allows the user to recover fluid by operating the pump in
reverse for as long as the button is pressed.
10.3.2 Pump settings
Figure 24. - Pump Settings
From this screen the following parameters can be adjusted:
• Flow rate
Choose from mL/min, mL/hr, ltr/min, ltr/hr, ltr/day, USG/h,
USG/d, Oz/min, RPM, %
• Prime duration
Duration adjust for Max (prime) function
(value of 0 = disabled, max 90 seconds).
