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Quinton Q4500 Stress System
controller with Quinton Q55 treadmill
- Freeze half of the screen while the other
half displays live ECG data.
- Up to 7 user-definable ergometer protocols,
each with a resting stage and up to 99 exercise
stages.
- High-resolution thermal chart recorder
produces quality reports ready for signature.
- Menu, entry and control functions are
easily accessible on the removable PC-compatible
keyboard.
Quinton Q4500 Stress System Specifications:
Overall System
Frequency Response: 0.05 to
100 Hz.
Display and Analysis System: Mucle
artifact filter (user-selectable); baseline
wander filter (user-selectable)
Gain: X2, X1, X0.5 (X1-10 mm/mV)
Calibration Signal: 1.0 mV for 200 msec
Lead Group: Standard 12-lead, Franks leads, Canadian, Comell
12-lead, Cabrera Sequence
Lead Group Length (Auto 12-lead): 2.5 or 5.0 seconds.
ECG Simulator: ECG signals for 14 electrode sites, programmable
heart rate (user-selectable between 30 to 240 bpm) and PVC's (user-selectable)
Outputs: TTL Pulse for QRS detection, 3 analog outputs user-selectable
between 3 current ECG leads displayed, Heart Rate, Treadmill Speed/Grade, Ergometer
RPM/Workload.
ECG Amplifier
Defibrillator Protection: Protected
to 360 Joules
Input Impedance: 20 megohms
Common Mode Rejection: 100
dB (minimum) at 60 Hz.
Pacemaker Pulse Identification: Per
E C 13 3.2,9, 12.
Input Channels: Simultaneous
acquisitons of all leads.
CRT Screen
Content: Three ECG channels, real-time graphs
and alphanumeric data.
Size: 14" diagonal
Type: High-resolution monochrome
rasterscan
Memory Span: 8 seconds of
ECG
Freeze Feature: Split screen
format with oldest four seconds of ECG frozen
Displayed Data: Stage, stage time, exercise time, speed, grade,
blood pressure, and heart rate.
ECG Computations
HR Computation: 6-seconds
average, updated every 2 seconds.
ST Parameters: Level, slope
ST Reference Point: J-junction,
(QRS Offset), user-selectable, variable.
QRS Detection Channel: Absolute Spatial Vector Velocity
Quinton Q4500 Stress System Exercise Device Controller
Displays: Grade displayed in %. Speed displayed
in mph, km/h, or m/min. Workload displayed
in kP, m/min or Watts.
User-Defined Environment: Includes user-defined
procedures and final report protocol.
Quinton Q4500 Stress System Protocols:
3 resident protocols: Bruce, Manual, and Astrand.
Infinite number of user-programmable protocols,
each with up to 99 stages and warm up/cool
down
Quinton Q4500 Stress System Dimensions: 59
x 24 x 31 inches. 150 x 61 x 79 cm (H x W x D)
Weight: 142 lbs, 65 kg
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