Data Critical OODT-4500 OpenNet Transceiver User Manual Manual
Data Critical Corporation OpenNet Transceiver Manual
Owners Manual
DT-4500 Operator’s Manual
1
OPERATOR’S MANUAL FOR DT- 4500
CAUTION
This instrument is intended for use in a hospital or clinical setting by trained and
authorized personnel who are acting on the orders of a physician. Its purpose is the real-time
monitoring of patients over an extended period of time.
The operator should be thoroughly familiar with the information in this manual before using
the instrument. As with all monitors, the system cannot replace skilled nursing care and
proper surveillance. The transmitter power is limited as required by the Federal
Communications Commission and thus has limited range. To insure continuous monitoring,
instruct the patient to remain within the area covered by the antenna system.
WARNING
DO NOT USE THE OUTPUT OF THIS DEVICE AS A SYNCHONIZATION SOURCE
FOR CARDIAC DEFIBRILLATION. DELAYS IN PRESENTATION OF THE R-WAVE
MAY BE AS MUCH AS 40 MILLISECONDS.
DT-4500 Operator’s Manual
2
Information to User
WARNING
This equipment has been tested and found to comply with the limits for a CLASS B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy, and, if not installed and
used in accordance with the instructions contained in this manual, may cause harmful
interference to radio and television communications. However, there is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, then the user is encouraged to try to
correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and the receiver
• Connect the equipment into an outlet on a circuit different from that of the receiver
• Consult the dealer or an experienced audio television technician
NOTE: Connecting this device to peripheral devices that do not comply with the CLASS B
requirement or using an unshielded peripheral data cable could also result in harmful
interference to radio or television reception.
Any changes or modifications to the device that are not expressly approved by the party
responsible for compliance could void the user’s authority to operate this equipment.
To ensure that the use of this product does not contribute to interference, it is necessary to
use shielded I/O cables.
Overview
The DT-4500 Ambulatory Transceiver provides two-way wireless communication
between analog ECG circuitry and the hospital’s data distribution network. The DT-
4500 is connected to the patient through the ECG lead circuitry and is carried on the
patient in a gown or disposable paper pouch. The ambulatory transceiver converts the
analog ECG patient parameters to a digital format, which is then transmitted to an
Access Point transceiver. The Access Point transceiver distributes the digital data to
the hospital’s data distribution network. The transceiver system includes 6 ECG
leads, accurate waveform notification, data port activity, notification of radio
frequency (RF) link to Access Point, battery status, attendant present switch, nurse
call switch, and two I/O ports for attachment to external medical devices.
Equipment Site Selection/Location
The transceiver is worn by the patient and is carried either in a gown pocket or
disposable paper pouch. The typical orientation is against the chest with the front
facing out, which minimizes body attenuation losses.
DT-4500 Operator’s Manual
3
The DT-4500 is IPX7 compliant and can be submerged in 1m of water for 30
minutes without seepage, while remaining in operating condition
Operating Instructions
The DT-4500 ambulatory transceiver is attached to the patient through the ECG lead
system. The ECG circuitry, based on the previous DT-4000 front-end circuitry,
consists of 6 lead wires and 2 I/O interfaces for external medical devices. The
battery-powered transceiver enclosure is carried in a gown pocket or disposable
paper pouch. The digital ECG patient parameters are transmitted to the Access Point
Transceiver, which then transmits the data via Ethernet network system (cable and
hub) to the hospital’s data distribution network. The 9V replaceable battery, or
rechargeable battery, should last at least 48 hours.
Antenna Installation
The DT-4500 transmits in the 608-614 MHz frequency range. The omnidirectional antenna is a part of
the lead set system, with each lead wire paired with an antenna wire. Transceiver output power and
system operation requirements are defined by the FCC. Therefore, it is essential that the antenna
provided not be modified or altered in any way by the end user.