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Specifications
Interpretive Stress Test withTreadmill
Patient cables digitizes the signal at the
patient,
eliminating analog cable noise
Contacts resist corrosion and ensure optimal
signal
Quality
Median update help s assure all measurements,
including
ST segments, are made upon true morphology
Technician friendly interface. Select standard
or
customized protocols.
Display
Size: 30.48 cm (48 in) diagonal.
Type: high-resolution, raster written.
Frequency response: 0.01 to 40 Hz, 0.01 to
20 Hz,user-selectable.
Number of traces: 3 rhythmleads.
Sweep speed: 25 mm/s.
Sweep speed accuracy: ±2%.
ECG rhythm: 7.5 s/lead.
Leads: user-selectable.
Recall reports: 10s of 6 user-selectable leads.
Displayed data: heart rate, target heart rate,
blood pressure, total exercise time clock,
stage clock, 4 current median
complexes, treadmill speed and grade, ventricular
ectopic/minute counter, 3 channels of rhythm,
protocol and stage of exercise, warning messages
and
prompts.
System
Digital sampling rate: 250 Hz. A/D conversion:
12 bits. Chassis leak age current: <100
mA(meets AAM I standards SCL 1278).
Patient leakage current: <10 mA. Common
mode rejection: 130 dB, minimum, up to 180
dB with digital processing. AC elimination:
50/60 Hz digital filters.
Electrode offset tolerance: ±320 mVDC.
Internal maintenance test: automatic self-tests.
Diskette drive: 8.89 cm (3.5in), 2 MB, double
sided,
quad-density, and MS-DOS format compatible.
Processing
ST level and slope determination: up to 15
leads. Medians: incremental updating with
elimination of artifact and aberrance in
all leads. ST level
measurement: manually selectable post J point.
Heart rate: 16-beat sliding average updated
every beat; minimum 35 beats/min, maximum 300
beats/min. QRS detection: band-pass filtered
composite of three user-selectable leads. Arrhythmia:
automatic detection and documentation.
Input Channels: simultaneous acquisition of
up to 15 channels. Impendence: 100 M1/2, defibrillator-protected.
Dynamic range: ±320 mVDC.
Electrode offset tolerance: ±320 mVDC.
Output
Standard outputs: one analog output , one wave
form output, one TTL output with variable
pulse width, polarity and delay, QRS beep
Writer Method: therma l dot array (horizontal
1000 dots/in at 25 mm/s, vertical 200 dots/in).
Channels: 6, user selectable. Frequency response:
0.01 to 100
Hz, 0.01 to 40 Hz, 0.01 to 20 Hz, user-selectable.
Sensitivity: 5,10, and 20 mm/mV. Paper speed:
5,12.5, 25,and 50 mm/s, user-selectable.
Paper style: thermal, perforated, 21.59 cmx
27.94 cm x (8.55" x 11"), Zfold,
300 sheets/pack.
Acquisition Module
Analog Sampling rate: 2000 Hz . Microprocessor-controlled:
10 IEC and AHA color-coded lead wires standard,
14 lead wires optional; (additional
lead wires user-definable)
Keypads
Control panel: contains manual treadmill, test/procedures,
and report controls. Alphanumeric keyboard:
with TRIM KNOB for blood pressure, patient
demographics, and impressions entry
Reports
Classical 12-lead: note: reports can be transferred
to the NUSE network by diskette. Incrementally
averaged medians: with real-time rhythm and
ST
level; user-selectable in two formats. 3- or
6-channel rhythm strips: available for real-time,
recall or arrhy thmia documentation (leads
user-selectable).
Tabular presentation of final report data including:
phase, stage, speed, grade, heart rate, blood
pressure, rate-pressure product, ectopic, maximum
ST
depression, and physician's impressions. Sample
cardiac cycles: presented at user-defined intervals.
Trend graph: heart rate, ST levels, ST slopes,
blood pressure, PVCs/m.
Power
Requirements: 90 to 135 VAC, 180 to 270 VAC,
50/60 Hz. Power consumption: 225 W maximum.
Physical
Height: 154.94 cm (61 in).Width: 62.23 cm (24.5
in). Depth: 71.12 cm (28 in). Weight: 54.48
kg (120 lbs)
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