Recorder Specifications; Recorder Symbols - Philips Avalon FM20 Service Manual

12 Specifications

Recorder Specifications

Built-in Thermal Array Fetal Trace Recorder
Mechanism
Paper & Printing
Accuracy @ 3 cm/min, 2 cm/min,
1 cm/min
Usable Print Width
Resolution
Time Delay to see trace on paper
Trace Separation Offset for FHR
(Ultrasound and DECG)

Recorder Symbols

Symbol Description
Parameter is capable of alarming and alarms were enabled at the time of printing the annotation.
The low limit is printed before the symbol, and the high limit after it.
Parameter is capable of alarming, but alarms were disabled at the time of printing the annotation.
(Note: There is no alarm related annotation at all if a parameter does not have alarming
capability.)
FMP detection is on
238
Thermal Array Recorder
Type
Standard Speeds (real-time traces)
Fast Print Speed (stored traces)
ECG Wave Print Speed
(not real-time)
Paper Advance
Sensing
±5 mm/page
128 mm
8 dots/mm (200 dpi)
<30s @ 1 cm/min
Twin Standard
Classic
Triplet Standard
Classic
Standard Z-fold paper
3 cm/min, 2 cm/min, 1 cm/min
Max. 20 mm/s
Print speed is variable and depends on
the print load
Emulated 25 mm/s
Print speed is variable and depends on
the print load
20 mm/s
Optical Reflex Sensor for black page
marks
FHR2 +20 bpm
FHR1 +20 bpm
FHR2 +20 bpm
FHR3 -20 bpm
FHR1 +20 bpm
FHR3 -20 bpm