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Directions for Use Chapter 6 Reference 53
Monitor radio specifications (2.4 GHz)
ECG specifications
The ECG channel meets all the requirements for Cardiac Monitors Heart Rate Meters and
Alarms specified ANSI/AAMI EC13-1992, except for Impulse response at the monitor
(section 3.2.9.8 part (c)), and Standardizing Voltage at the monitor and at Acuity (section
3.2.9.9). The channel also meets the American National Standard, Safe Current Limits for
Electromedical Apparatus (ANSI/AAMI ES1-1993).
Characteristic Specification
FlexNet Network 2.4 GHz Wireless Local Area Network (WLAN) and 10/100 Base-T Ethernet
network
Frequency
a
a. When used within certain countries, authorization for use is restricted as follows:
France: The equipment is internally restricted to the 2.448-2.482 GHz frequency range.
Spain: The equipment is internally restricted to the 2.447-2.473 GHz frequency range.
Japan: The equipment is internally restricted to the 2.473-2.495 GHz frequency range.
Italy: Operation requires a user license.
Note: The frequency ranges specified above are subject to geographic-specific regulatory authorities.
2.402 to 2.480 GHz
Modulation Frequency Hopping Spread Spectrum (FHSS)
Output Power 100 mW
IEEE 802.11 compliant Yes
Monitors per Access Point 15 (maximum) in most countries. In countries where available frequencies
are limited, this number is reduced.
Characteristic Specification
Connector Hypertronics D01 latching connector
Selectable Leads
5-Lead Cable
3-Lead Application (using 3-lead ECG
cable, or 5-lead ECG cable with
detachable lead wires; only RA, LA,
LL electrodes connected)
Monitored: II, III, V; Derived: I, aV
R
, aV
L
, aV
F
Monitored: II
Lead Fault Indicator Displayed chest icon with flashing indicator for each electrode
ECG Size (sensitivity) 0.2, 0.5, 1, 2, 4, and 8 mV/cm
Display Sweep Speed 25 mm/sec
Bandwidth
Local display
To Acuity Central Station
0.5 to 94 Hz independent of patient mode
0.05 to 94 Hz independent of patient mode
Sample Rate 364 Hz (182 Hz with turning point decimation to Acuity Central Station)
Input Protection Electrosurgery and defibrillator protected when used with ECG cables
specified in the Welch Allyn Products and Accessories booklet (810-0409-
XX).
Electrosurgery interference suppression Included on all vectors.
Lead Fail Sense Current 70 nA dc typical for active leads.
140-280 nA dc typical for reference electrode, depending on number of
electrodes attached.
Tall T-wave Rejection Meets AAMI (USA) EC13-1992, section 3.1.2.1.c, up through 1.2 mV