Terumo 801763, Operator'S Manual, Page: 246 / 359

Modules
7-24
Flow Monitoring
The Perfusion Screen can be configured to monitor up to 4 flow locations. A flow
sensor can be used to monitor flow generated by a roller pump or centrifugal pump.
Flow is measured in the range of –9.99 to +9.99 L/min.
The flowmeter system is compatible with medical grade PVC tubing
3/8 in. (9,5 mm) I.D. x 3/32 in. (2,4 mm) wall thickness.
Display Accuracy
*
± 10% of actual flow for -7.0 L/min to -1.0 L/min
± 0.10 L/min of actual flow for -1.0 L/min to -0.3 L/min
± 0.10 L/min of actual flow for 0.3 L/min to 1.0 L/min
± 10% of actual flow for 1.0 L/min to 7.0 L/min
Display Resolution (flowmeter placed within centrifugal pump icon on CCM)
0.01 L/min between -9.99 to -1.00 L/min and between 1.00 to 9.99 L/min
0.001 L/min between -0.091 to -0.999 L/min and between 0.091 to
0.999 L/min
Between -0.090 and +0.090 L/min inclusive, the display shows 0.000
L/min
(flowmeter placed outside centrifugal pump icon on CCM)
0.01 L/min between -0.09 to -1.99 L/min and between 0.09 to 1.99 L/min
0.1 L/min between -2.0 to -9.9 L/min and between 2.0 to 9.9 L/min
Between -0.09 and +0.09 L/min inclusive, the display shows 0.00 L/min
Pulse Mode Reading fluctuations are limited to less than +/- 0.50 L/min.
For flow outside of this range, the flow icon will display “– – –” L/min.
If no data is received, the flow icon will display “– – –” L/min.
Flow data can be used as a servo setpoint to regulate roller and centrifugal pump speed.
See the
Roller Pumps
and
Centrifugal Control Unit
chapters,
Servo Mode
sections for
instructions on using a flow value as the servo setpoint.
* Note: For displayed flow rates of -0.3 L/min to 0.3 L/min, actual flow is considered to be zero.