Troubleshooting guide

1
Monark 839 E
18
Subject supervision
The ergometer performs automated tests virtually by
itself, requiring minimal intervention by the operator.
This allows the operator to pay careful attention to
the test subject without distraction. The response to
the exercise protocol can be accurately estimated and
appropriate action to assist the test subject, if necessa-
ry, may be given. The user is subjected to considerable
exercise in certain advanced protocol stages. The ef-
fect on the test subject should not be underestimated.
During the testing, the general appearance and heart
rate may be the most crucial factors to monitor. The
testing should be stopped immediately if the test sub-
ject reports chest pain, difficulty breathing, etc. A
system of prompt medical attention should be set up
prior to testing, in case of emergency.
The test subject may also show difficulty in regulating
the speed of the ergometer. The power will be pro-
perly regulated regardless of the speed, assuming that
the protocol work type is not force and that the speed
is maintained above the rpm low setting (default is
30 rpm).
In addition, some test subjects may become sensitive
to the display on the handheld remote controller. If
this is suspected, the controller may be removed from
its cradle and located out of view. Similarly, the pulse
LED may disturb the test subject and may be disab-
led.
Fig: Placement of the chest belt
Fig: Electrodes on the back of the chest belt (1)
Heart Rate (telemetry system)
A person's heart rate can be measured with a chest
belt that senses the electronic output of the heart. The
chest belt is standard equipment.
Fuss-free HR measurement requires that the belt is
correctly placed. When it is correctly fitted the logo
on the belt will be central and readable, outward
and upright, by another person. Before putting on
the belt, clean the skin where the belt is to be placed.
The chest belt should be secured at a comfortable
tension around the mid section, just below the breast
muscle, see Fig: Placement of the chest belt. Moisten
the electrodes before use, see Fig: Electrodes on the
back of the chest belt. To make contact with the HR
receiver on the bike, the distance should not be more
than 100 cm. It is especially important when first used
to identify the chest belt with the sensor, by standing
close to get the HR (maximum 60 cm). This relates
especially to the Polar heart rate belt.
NOTE! Electromagnetic waves can interfere with the
telemetry system. Cellular phones are not allowed to
be used near the bike during test.
In case of problems, turn off WiFi, Bluetooth and
similar on computers nearby.