MedRad Mark V Plus
MedRad · Model Mark V Plus
Pedestal, used, angiography injector. Also available in rack mount model with choice of mounting options-overhead counterpoise system, head pedestal or table mount. Complete with remote, head, control, start switch, syringe warmer, power cable and interconnect cables.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Message fault / system malfunction code
HighSymptoms: Error message or code on the control panel, injector will not arm or aborts an injection.
Root cause: An operator-induced condition (syringe/air check) or a subsystem fault - the message/code indexes the troubleshooting section.
No drive / plunger will not advance
MediumSymptoms: Piston will not move, inaccurate flow or volume, stalls under pressure.
Root cause: Plunger drive motor, drive belt, or the plunger-position / mechanical-stop potentiometer.
Will not inject / dead unit
MediumSymptoms: No response, blank display, or arms but no delivery.
Root cause: Power supply, control board, or a head-to-console cable fault.
Syringe heat maintainer fault
MediumSymptoms: Contrast not warmed, heater indicator off or flashing.
Root cause: Failed syringe heat maintainer or its cable.
Garbled or missing remote / display message
LowSymptoms: Control panel text corrupt or the remote shows nothing.
Root cause: Display card or the head/console communication path.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Plunger drive motor
Class Major service partRel. cost $$$R&R Difficult
Plunger motor drive belt
Class Periodic replacementRel. cost $$R&R Moderate
Plunger-position / mechanical-stop potentiometer
Class Major service partRel. cost $$R&R Moderate
Syringe heat maintainer
Class Periodic replacementRel. cost $$R&R Fairly easy
Disposable syringe set
Class ConsumableRel. cost $R&R Easy
Display / controller card
Class Major service partRel. cost $$$R&R Difficult
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Plunger drive motor | Major service part | $$$ | Difficult |
| Plunger motor drive belt | Periodic replacement | $$ | Moderate |
| Plunger-position / mechanical-stop potentiometer | Major service part | $$ | Moderate |
| Syringe heat maintainer | Periodic replacement | $$ | Fairly easy |
| Disposable syringe set | Consumable | $ | Easy |
| Display / controller card | Major service part | $$$ | Difficult |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Message or malfunction code
- Follow ESD precautions before touching any board.
- Note the exact message / code and whether it appeared at arm or during injection.
- Look it up in the Message Faults / Non-Message Faults section (Dead Unit, No Drive, Will Not Inject, Garbled Message).
- Try the simple causes first - syringe seated, air cleared, cables seated.
- Disconnect the power cord before removing or replacing any PC board.
Symptom: No drive / plunger stalls
- Check for a mechanical obstruction at the plunger.
- Listen for the drive motor on a manual advance.
- Inspect the plunger motor drive belt for wear or slip.
- Check the plunger-position and mechanical-stop pots.
- Replace the belt, pot or motor as isolated, then verify delivered volume vs set volume.