COLOR MEANING NAME
Grey P loop from start to end P
Dark grey Start of P loop until Pmax P+
     Light grey P loop from Pmax until the end of P loop (Z point) P-
Blue R loop from start (Z point) until end R
Dark blue Start R loop (Z point) until Rmax R+
     Light blue R loop from Rmax until end of r loop (J point) R-
Green T loop from start to end T
Dark green start T loop until Tmax T+
     Light green T loop from Tmax until end T loop T-
Red End R loop (J point) until start T loop ST
Red/Green End R loop (J point) until T loop STT
Purple End T loop until start P loop (next beat) TP
Yellow (rare) U loop from start to end U
Dark yellow Start U loop until Umax U+
     Light yellow U loop of Umax until end U loop U-
Start P loop until start P loop next beat; interval of beats PP

The numbers displayed also give additional information:

WHAT MEANING ADDITIONAL INFORMATION
Scaling How much mm are 100ms respectively 1 mV? Automatically adjusted to the screen available (5mV – marker is at 3/4 of the sreen height available.
Pmax
(next to Peak of P)
Potential of maximum vector of P loop Normal: > 0,2 mV
Rmax
(next to Peak of R)
Potential of maximum vector of R loop PNormal > 2,0 mV
Tmax
(next to Peak of R)
Potential of maximum vector of T loop Normal > 0,38 mV
Numbers below the graph Length of respective section in ms
P (P+ + P‐) Normal < 200 ms; Findings higher than 200 ms indicate a delay of nervous conduction between atria and cardiac chambers.
R (R+ + R‐) Normal < 122 ms; Findings higher than that indicate an intraventricular conduction delay
Numbers in the colored sections Area of the respective color in ms*mV At the moment not evaluated