Specifications

DL700 Holter Monitor
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e) The green operating LED will start to blink at a steady rate to indicate
normal operation. The LED will blink at this rate for up to 15 minutes
allowing time to verify that the signal on each channel is acceptable.
After this startup interval, the LED will begin blinking at a slower rate
to indicate that ECG recording has begun. The final blink rate will vary
somewhat depending on the storage capacity of the flash card and the
patient signal characteristics.
- Warning -
If the LED is NOT BLINKING after the previous step, the unit is NOT
RECORDING. This LED is the only indicator that the recorder is
functioning properly and it should always be blinking whenever the unit
is recording. If it is not, please see the Troubleshooting Guide section.
f) To insure that a good quality patient hookup has been achieved, a test
ECG output strip can be run on an ECG machine. To run a test strip,
connect a standard Test Box to the 3 recorder test jacks shown in Figure
1. Insert the plugs from the ECG machine into the Test Box. Run a test
output strip. Verify that there is an acceptable signal on each channel.
It may be necessary to adjust the gain by using the recorder gain switch
located next to the green LED shown in Figure 1. After selecting the
final gain setting, disconnect the Test Box from the recorder.
g) To abort the standard 15 minute startup interval once the
preparation is complete and it is desired to start the ECG recording,
hold the event pushbutton in until the LED stops blinking (usually about
5 seconds). Release the pushbutton and the LED will start blinking at a
slower rate, as described in Step e) above.
h) Close the top cover of the recorder, place the recorder in the pouch, and
attach the recorder to the patient utilizing either the belt or the shoulder
strap. Caution the patient to avoid getting the recorder wet and to NOT
pull on the electrodes.
i) If there is a need to stop the recorder after the recording session has
begun, please refer to the following section “To Stop Recording”.
DL700 Holter Monitor
14
5.3 To Stop Recording
a) To stop recording after 24 hours, or sooner if desired, remove the
batteries completely.
- Warning -
DO NOT RE-INSERT BATTERIES after removal as this will erase the
ECG data on the Flash memory card.
b) Remove the Flash memory card and patient electrodes. If it is desirable
to remove the leads from the patient input connector, then, due to their
snugness of fit in this connector, it is suggested that the medical
technician carefully grip these leads only at the base whenever
removing them. NEVER pull on the wire itself as this can easily break
the wire inside the insulation causing a noisy and intermittent ECG
recording.
5.4 Analyzing the ECG Data
a) Insert the Flash memory card into the Flash card reader of the
Computer Analysis System on which the ECG analysis is to be
performed.
b) The Computer Analysis System must have special download software
installed to transfer the ambulatory ECG data from the Flash memory
card to the Analysis System.
c) Once the data transfer is complete, the previous patient’s name and any
other information written on the Flash memory card’s label should be
removed and the ECG data should be erased.
d) The Flash memory card is now free to be used for the next patient.