• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WIA30802130GYZ
  • Topic ID: id_15271079 Version: 2.4
  • Date: Jul 5, 2019 10:35:42 AM

ECG Leads Functional Check and Installation

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1Not Applicable5 minutesNot Applicable
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Ohmmeter1---
Topic ID: id_SL2034323-1213232

Test Functionality of ECG Leads

Procedure

  1. If not already done, disconnect the ECG Cables from the ECG port. (Figure 1 shows a pin diagram of the ECG connection.)
    Figure 1. PIN Diagram of ECG Lead
  2. Check the impedance of the ECG Cables from each of the leads at point “a” to the other end of that lead at point “b.” The impedance between point a and b should be 60k ohms ±5% tolerance.
  3. Check the impedance of the ECG Cables from each lead at point “b” to its respective connection at point “c.” The impedance should be 0 ohms.
    Figure 2. Connections A and B on ECG Cables
Topic ID: id_SL2034326-1213232

Connect Leads and Plug ECG Leads to PAC

Procedure

  1. Connect the white High Impedance MRI ECG Lead Wires to the grey ECG Patient Cable by matching the colors on the white cable to the colored dots on the grey cable.
  2. Plug the open end of the grey ECG Patient Cable into the ECG Port.
Topic ID: id_15364029

Finalization

Procedure

  1. Return the system to the patient scanning condition.
  2. Perform a check scan to ensure the system is operating properly.