Cardionetics C.Net5000

Technical Specification

Electrode Pad Placement

Pad positions: RA, LA, V4, Lead: chest-modified V4

Heart Rate

Mean (4 intervals)
Minimum: 20 bpm
Maximum: 250 bpm
Tachycardia: over 120 bpm, minimum 30 seconds
Bradycardia: under 50 bpm, minimum 30 seconds

Wide Complex Tachycardia

Heart rate: 120 bpm to 300 bpm
Duration: minimum 3 beats
Morphology: wide, unifocal

ST Segment Analysis

Depression: 1 mm (2 mm if upsloping)
Measured point: J + 60 ms (J + 50 ms in tachycardia)
Isoelectric point: PR segment
Slope: upsloping, horizontal, or downsloping
Duration: minimum 30 seconds

AF Detection

Irregular irregular RR intervals
Variable P wave morphology
Duration: minimum 30 seconds


Pause: 1.7 to 3.0 seconds
Arrest: over 3.0 seconds
Missed beats: pauses in synchronous rhythm

Ectopic Beats

Ventricular: unifocal, multifocal
Atrial: premature (less than 75% average RR interval)
Classification: isolated, trigeminy, bigeminy, couplet, triplet, salvo (4 to 7 beats), episode (8 or more beats)

Symptom Button

Up to 10 events


Monochrome LCD with backlight
Resolution: 128 × 64 pixels
Sweep speed: 12.5 mm/second
Gain: 5 mm/mV

Report Printout

ECG trace: 24 seconds, 25 mm/second
Trend graph: 24 hours, 25 mm/hour


Size: 107 mm × 80 mm × 27 mm
Weight: 200 g
Power: 2 × AA batteries
Index of protection: IP20 rated by design


Channels: single bipolar
Sample frequency: 100 Hz
Sample resolution: 12-bit
Frequency response: 0.1 Hz to 23 Hz
Input impedance: greater than 20 MΩ


Operating temperature: 0°C to 50°C
Storage temperature: 0°C to 60°C
Relative humidity: 20% to 65% noncondensing
Shock and vibration: AAMI EC38,

Regulatory Standards

CE mark: MDD, 93/42/EEC
Performance: ANSI/AAMI EC38
Validation: ANSI/AAMI EC57
Quality: BS EN ISO 13485:2003
Safety: BS EN 60601-1 (1997)