Annually; Injection System Calibration; Checking Leakage; Reinstalling The System In Another Room - Bayer HealthCare CERTEGRA MEDRAD Stellant FLEX Operation Manual

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1.
Ensure the heat maintainers are connected.
2.
Fully advance and reverse the pistons by using the Move Piston button and the forward/reverse piston
controls.
3.
Ensure Auto Advance and Auto Retract are enabled.
4.
Enter and lock the following protocol:
5.
Install syringes and ensure the piston automatically docks and fully advances the syringe plungers.
6.
Perform Auto Load.
7.
Arm and initiate an injection.
8.
In one of the phases, activate the HOLD feature for at least 10 seconds.
9.
Resume the injection, and verify that the injection completes normally and that the Injection Complete
screen displays the results.
10. Advance plungers to the full forward position, remove syringes, and ensure the pistons automatically
retracts.
11. Inspect the heat maintainer. Make sure it is warm and the fault indicator is not illuminated.
12. Ensure all injector functions (such as filling, priming, reset, etc.) are working correctly.

15.5 Annually

Bayer offers Preventative Maintenance Programs. These annual programs greatly assist in maintaining accuracy
and reliability, and can also extend the life of the system. Contact a local office for Bayer or a local authorized
dealer for further information. Refer to the back cover of this manual for address, telephone, and fax information.

15.5.1 Injection System Calibration

Bayer recommends a complete system calibration and performance checkout be performed annually. Contact
Bayer, or a local office for Bayer for complete details.

15.5.2 Checking Leakage

As part of an annual maintenance program performed by a qualified services representative or authorized dealer,
both electrical leakage and protective earth ground continuity checks should be performed.
NOTE: Local regulations or facility protocol may require electrical leakage checks at more frequent
intervals. If this applies, the local regulations for leakage must be followed.

15.6 Reinstalling the System in Another Room

If re-installing the system in another room, disconnect the cable, lower the IV pole, and fold in the hooks. Position
the injector head vertically. When moving the injector, hold the pedestal below the point indicated by the label on
the pedestal arm. If the pedestal does not contain this label, hold the pedestal no higher than 36 inches above the
floor. Maintain a grip on the injector when moving it across a threshold or over other obstacles in the path of travel.
MEDRAD® Stellant FLEX CT Injection System with Certegra® Workstation
Flow
Rate
Phase 1: Syringe A: 10 mL/s
Phase 2: Syringe B: 2.5 mL/s
Phase 3: Syringe A: 5.0 mL/s
Phase 4: Syringe B: 0.1 mL/s
Volume
70 mL
29 mL
100 mL
1 mL