ECG AMPLIFIER
Patient Isolation:  Meets UL 544 (Type 1)
Defib Protection:  Protected to 360 Joules, per AAMI ECII (standard cable)
Input Impedance:  20 megohms
Common Mode Rejection:  100 dB (minimum) at 60 Hz
Pacemaker Pulse Indication: per EC13 3.2.9.12
Input Channels:  Simultaneous acquisition of all leads.

CHART RECORDER
Type:  Multiple format ECG waveform and alphanumeric printing.
Recording Technique:  High-resolution thermal dot array, temperature-controlled thermal printhead.
Speeds:  5, 25, 50 mm/sec (crystal controlled)
Paper:  Pre-guided thermal, 200 ft (61m) perforated Z-fold pages (8.5 x 11) or A4.
Feed:  Automatic

KEYBOARD
Main:  101 full travel keys, QWERTY layout with special dedicated keys
Exercise Device Control:  Dedicated keys for increase/decrease speed and grade, start exercise device, stop exercise device.

CRT SCREEN
Content: Three ECG channels, real-time graphs, and alphanumeric data
Size:  14 inch diagonal
Type:  High resolution monochrome raster scan.
Sweep Speed:  25 mm/sec
Memory Span:  8 seconds of ECG
Display Mount:  Adjustable tilt and swivel
Freeze Feature:  Split screen format with oldest four seconds of ECG frozen
Write from Memory:  Both frozen and continuous ECG display can be recorded from CRT with full 100 Hz diagnostic quality.
Displayed Data (standard):  Stage, Stage Time, Exercise Time, Speed, Grade, Blood Pressure, Heart Rate

REPORT CAPABILITIES
In Test: 
12-lead, Average Beat, Exercise Set, Write Hold, Write Screen, Ectopic Beat

ECG COMPUTATIONS
HR Computation:  6-second average (updated every 2 seconds)
ST Parameters:  Level, Slope
ST Reference Point:  J-Junction (QRS Offset), user-selectable, variable
QRS Detection Channel:  ASVV (Absolute Spatial Vector Velocity)

EXTERNAL INTERFACES
Floppy Disk Drive:  3 1/2 inch diskette, 1.44 Mbyte, PC-compatible, used for data storage and software update.
Digital I/O:  3 each RS232, 9-pin connector, PC-compatible serial channels that are user-configurable.
Standard Interfaces via Digital IO:  BP410, BP412, Q-Plex/ComputerLink, Lode Ergometer, Q-Series and Series 90 Treadmills

TIMERS
Displays:  Stage, Stage Time, Exercise Time, Recovery Time
Alarms:  8 standard, user-selectable thresholds:  ST Level elevation, ST Level depression, Target HR achieved, Ectopic Rate, Diastolic BP, Systolic BP, Systolic BP drop, Heart Rate.

PATIENT CABLE
Standard Cable:  10 electrode with snap grabbers, grey, North American color-coded, available in 10 ft. and 15 ft. lengths.
European Cable:  10 electrode with snap grabbers, grey, European color-coded with internal defib. protection devices.

EXERCISE DEVICE CONTROLLER
Displays (digital):  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.
Protocols:  3 resident protocols:  Bruce, manual, Astrand.  Infinite number of user-programmable protocols, each with up to 99 stages and warm up/cool down.

ENVIRONMENTAL CONDITIONS
Temperature:  59 to 95 degrees F (15 to 35 degrees C) operating; -40 to 122 degrees F (-40 to 50 degrees C) storage
Humidity:  20 to 85% at 77 to 95 degrees F (25 to 35 degrees C)
Barometric Pressure:  425 to 775 mm Hg

PHYSICAL AND DESIGN SPECIFICATIONS
Dimensions:  59 x 24 x 31 in. (150 x 61 x 79 cm) HxWxD
Weight:  142 lb (65 kg)
Shipping Weight:  215 lb (98 kg)
Power:  100-120 VAC 50/60 Hz nominal 6.8A maximum, 200-240 VAC 50/60 Hz nominal 3.4A maximum.