Philips Avalon CTS M2720A Service Manual page 101

Essential Performance
Parameter
General
ECG
Toco Extern
Ultrasound
The second table identifies Essential Performance in the presence of "transient" interference:
• Electrostatic Discharge (ESD)
• Electrical Fast Transients/Bursts
• Surges
• Voltage interruptions
• Electro Surgery (ESU)
Parameter
All
Essential Performance
No interruption or cessation of current operating mode (e.g., no reboot, display is functional,
etc.)
No spontaneous operation of controls (e.g., no activation of touch screen controls without
user interaction)
Measurement of the heart rate within the specified error limits and over the specified
measurement ranges
Alarming on heart rate limit violation within specified delay time.
Measurement of the external Toco within specified error limits and over the specified
measurement range
Measurement of the fetal heart rate within the specified error limits and over the specified
measurement ranges
Alarming on heart rate limit violation within specified delay time.
Essential Performance
After electrostatic discharge, fast transients/bursts, surges and electro surgery interference, the
equipment will return to previous operation mode within 10 seconds without loss of any stored
data.
After voltage interruptions the equipment returns to previous state without operator intervention
and loss of data.
10 Specifications
95