Test Mode Look Up Chart; Test Mode T1- Burn-In; Test Mode T2 - General Function Test; Test Mode T3 - Pressure Transducer Calibration - Covidien Kendall SCD 700 Bedienungs Und Servicehandbuch

7. If a test mode is entered and left idle for five minutes, the unit will revert back to test Access Mode.
8. To exit Test Access Mode, turn off the controller.

Test Mode Look up Chart

T1 – Burn-In Feature
T2 – General Function Test
T3 – Pressure Transducer
Calibration
T4 – Pressure Transducer
Calibration Verification
T5 – Self Test
T6 – Performance Test
T7 – Manufacturing Test
T8 – Feature Menu Mode
Error History Mode

Test Mode T3 - Pressure Transducer Calibration

Note: The transducer used in the Kendall SCD™ 700 series compression system is a state-of-the-art, highly precise
and virtually drift free device.
Factory calibration certification is void if the case is opened. Recalibration is rarely required and should be done only
when necessary. Always perform test T4 before test T3 to verify the pressure transducer calibration.
Required Equipment: A regulated, precision air source accurate to ±0.2mmHg over a range of 0-130 mmHg.
1. With nothing plugged into the ports on the back on the controller, enter test access mode. Selected Test Access
Mode 03.
2. Press the B button to begin the test.
3. T3 will blink on the display screen until the calibration procedure is completed or an error condition occurs.
4. Valve #1 will be energized throughout the procedure, so that the user can verify the calibration of the pressure
transducer with the controller case open or closed. The pressure standard can either be directly connected to
the transducer with the case open, or it can be attached to the Bladder #1 location at Port A with the case
closed. The Bladder #1 location is the left-most fitting within Port A (as viewed from the back of the controller).
5. The controller will prompt the user to apply the pressure to the controller by displaying the required pressure on
the screen. Once the applied pressure is confirmed and stable, press the B button to proceed to the next
pressure. The controller requires a multipoint calibration at 0, 18, 45 and 130 mmHg. It is required that the
pressure source be accurate to ±0.2 mmHg and that it is stable.
EN-21
Test Mode T1 - Burn-In
Note: Burn-In mode is used in manufacturing to ensure proper assembly and
to identify premature failures. This mode is not generally used outside of the
manufacturing environment.
1. Verify nothing is plugged into the ports on the back of the controller
and enter Test Access Mode. Select Test Access Mode 01.
2. Press the B button to begin Burn-In. The compressor will operate and
the valves will actuate, releasing air out of the ports. The process will
repeat continuously until the Burn-In period is complete
(approximately 16 hours).
3. The battery will discharge then charge to approximately 70% charge
level.
4. When 16 hours of Burn-In is completed the controller goes into error
mode and Test Access Mode T1 will blink on the screen. The buzzer will
not pip during this error.

Test Mode T2 - General Function Test

1. With nothing plugged into the ports on the back of the controller, enter
Test Access Mode. Select Test Access Mode T2.
2. Press the B button to begin the test.
3. Pressing the A button during this test will cause each one of the LED's
to illuminate one at a time in succession and the audible error indicator
to pip.
4. Pressing and holding the B button will increase the pump speed to its
maximum in 4-5 seconds.
5. Releasing the B button will allow the pump to decrease its speed.
6. The valves will actuate in succession (valve #1 through valve #6) for
two seconds each.
Kendall SCD™ 700 Series