Equipment Description
23
Haemonetics
®
ACP-215
®
Service Manual
P/N: SM-ACP215-01-EN(AB)
Hardware Descriptions
This section describes the device components. The device is a
microprocessor-controlled device with the following features:
Figure 4, ACP 215 top deck view
Air Detectors
The ACP 215 device is equipped with two ultrasonic sensors designed to
detect the presence of air, bubbles or foam in the fluids flowing through the
disposable set tubing. The solution line air detector
(SLAD)
is located to the
right of the solution pump. The blood line air detector
(BLAD)
is located to the
right of the blood pump.
In the case of an occlusion in the tubing, or an interruption in the fluid flow, the
pump(s) will stop and a message will be displayed with information about the
condition.
Circuit Description
The air detector signals are independently monitored by the CPU card. The
signal is +5 VDC when the air detector senses fluid, and is pulled to ground
when sensing air.
The two air detector signals are pulled down by a resistor network, then
buffered, and read into the CPU by an I/O port. These signals are also latched
on board and read by a second I/O port.
Two one-second timers will be started whenever air is present. If time-out
occurs, the corresponding faults will be presented to the fault registers and the
procedure will be aborted by opening the relays.
1. Centrifuge system
2. Solution pump
3. Blood pump
4. DPM
5. SPM
6. Red valve
7. White valve
8. Green valve
9. Blue valve
10. Yellow valve
11. Orange valve
12. SLAD
13. BLAD
14. Line Sensor
15. Solution bag pole
2.
3.
12.
13.
6.
7.
8.
4.
5.
14.
11.
10.
9.
1.
15.
