New Era CBL-DUAL-3 RS-232 Dual pumps communications cable (3) - Manual (Page 6)

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Set any optional parameter to 0.000 (off) if not used, or set the function to STOP. Pumping rates
not set will default to the Infusion Pumping Rate.
Hardware Setup
Attach the cable, CBL-DUAL-3, to the “To Computer” connector on the back of both pumps.
Operational Sequence
- Both syringes start empty. Set Phase 4, pre-filled mode, to use pre-filled syringes.
- Start the Master pump: Both pumps start filling, unless pre-filled syringes are specified.
- When syringes are filled:
• Master pump starts infusing
• Second pump primes (if enabled), then pauses
- When the infusing pump reaches the overlap position, if enabled, or changes pumping direction,
the paused pump will start to infuse
- Sequence repeats:
• Refilling pump fills, primes, pausing and waits for the other pump.
• Infusing pump infuses to the overlap position or syringe empty, and then signals the
other pump to start infusing. When empty, changes direction and starts refilling
While Pumping
The pumping rate can be changed. The new pumping rate will be transmitted to the other pump,
into the corresponding pumping sequence.
Pressing the Stop key on either pump, will Pause the sequence on both pumps. Pressing the Start
key, on the Master pump, will continue the pumping sequence.
Power Failure Mode – Auto-Synchronization
After a power failure restart, or to start the infusion with partially filled syringes, limit switches
can be attached to the pump at the refill position of the syringes. Attach the limit switch wires
between the Trigger Input (pin 2) and Ground (pin 9) on the pump’s 9 pin TTL connector.
Then enable Power Failure Mode in the Master pump’s setup menu.
When the pumps start, they will begin by filling the syringes until either the syringe volume
target is reached or the limit switch is triggered. Power Failure Mode overrides pre-filled syringe
mode settings.
Notes
The refill rate needs to be fast enough so that the syringe is refilled and primed before the
infusing pump has emptied.
If the refilling pump is still pumping when the infusing pump empties, an error message will be
displayed and the pumps will stop.
[Er:41] Error message indicates invalid pumping parameters.