Philips Avalon FM50 - When Trace Separation Is off

12 Monitoring Triple FHRs
124
• The label for FHR1 is annotated with and the FHR3 label is annotated with .
The following trace shows triplets with
Trace Separation on, and using Classic separation order.
The traces for FHR1 and FHR3 are offset. The numerical FHR values displayed on the monitor
remain unchanged. Subtract 20 from the recorded trace for FHR1 to obtain the true FHR1. For
example, if the recorded trace shows 160, then the true FHR is 140. Similarly, add 20 to the recorded
trace for FHR3 to obtain the true FHR3.
When Trace Separation is Off
To indicate that trace separation is switched off, a dotted line labeled prints across the FHR scale.
1 "Standard" trace separation switched off here
2 "Classic" trace separation switched off here