HP PageWriter XL M1705B Service Manual page 226

In addition, the template beat with the matching and noise
windows appears on the preview screen as shown in Figure B-3.
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Matching
vinclow
Noise
'vindou
Template
Av Select lead
c s
Select
the template.
elect Reject Match NOlSe
Exit
ImrzlIElmm
Figure B-3. A Template Screen.
Select Confirms the displayed template beat. (The
template beat is a typical beat used to match
other beats during averaging.) You must do this
before you can start the SAECG process.
Reject Rejects the displayed template beat and acquires
another.
Match Lets you adjust the matching window. Use the (iJ
and Q keys to position the window, then press
Done . tiIatke sure the matching window contains
the fastest rising portion of the R wave.
Noise
Lets you adjust the noise window. Use the @ and
0 keys to position the window, then press Done .
h/lake sure the noise window is on a flat part of
the signal, and that the T wave is not inside the
window.
(iJ and @ Allow you to place the template on another lead.
4. Once you have selected a template beat, the message
Averaging . . . appears, -and the preview screen displays
continuous ECG signals for leads X, Y, and Z.
Note .I
Ii?
You can press Done at any time to end the averaging process.
B-8 M1754A Signal Averaged ECG (SAECG) System