The WT100C is used to create a virtual reference electrode when measuring the transverse plane (i.e. precordial) ECG components [V1, V2, V3, V4, V5, and V6]. The virtual reference is created by the summation of the Right Arm (RA), Left Arm (LA) and Left Leg (LL) electrode leads. To measure all six transverse plane components, six ECG100C amplifiers are required. Use five of the JUMP100C jumper connectors to tie together the reference (Vin-) inputs of these amplifiers. This common reference connects to the virtual reference created by the WT100C.
For full, simultaneous, 12-lead ECG recording, a total of 8 ECG100C amplifiers are required. Two of the ECG100C are used to generate Leads I, II, III, aVR, aVL and aVF, while the remaining six ECG100C are used to generate the six precordial leads.
For an economical alternative, use the TSD155C moveable chest lead (page 80). The TSD155C requires three ECG100C amplifiers and incorporates a built-in Wilson Terminal.