GERATHERM DUOTEMP GEF-100 Bedienungsanleitung
INSTRUCTIONS FOR USE
Geratherm Duotemp GEF-100
DIGITAL EAR AND
FOREHEAD THERMOMETER
GB
CONTENTS
THE PARTS OF THE UNIT
Probe On button
LCD panel
Memory button
Probe attachment
(fore forehead use)
Probe
Battery cover
1 - GB
The parts of the unit 1 - GB
Specifications 2 - GB
What is body temperature? 4 - GB
Temperature measurement - Ear 5 - GB
Temperature measurement – Forehead 7 - GB
Measuring water and room temperature 8 - GB
Memory 9 - GB
Changing the temperature scale 9 - GB
Battery replacement and insertion 10 - GB
Fault indication 11 - GB
Warranty 13 - GB
Certificate of guarantee 14 - GB
GB
SPECIFICATIONS
Point of
measurement
Infra-red measurement at
the eardrum or forehead
Measuring range
Ear Mode:
Forehead Mode:
0 - 100 °C (32 - 212 °F)
32.2 - 43.3°C (90 - 109.9 °F)
Operating
conditions
10 - 40 °C (50 - 104 °F),
humidity: 15 - 95 % RH
Storage
conditions
-20 - 50 °C (-4 - 122 °F),
humidity: 15 - 95 % RH
Resolution 0.1 °C or 0.1 °F
Accuracy
(laboratory)
35.5 °C - 42.0 °C: +/- 0.2 °C
(95.9 °F - 107.6 °F: +/- 0.4 °F);
other ranges +/- 2%
clinical
repeatability max. +/- 0.3 °C
Memory Stores up to 10 measure-
ments in the memory
Automatic
switch-off 60 seconds
Reaction time - 1 second
Battery DC 3V lithium battery
CR20322
Battery life More than 12 months if
used for 10 minutes per day
Dimensions 150 mm (l) x 36.7 mm (b) x
44 mm (h)
Weight 47 g (including battery)
Quality guarantee:
The unit conforms to the Council Directive 93/42/EEC concerning medical
devices and the standard DIN EN 12470-5:2003 Medical Thermometers,
Part 5: Standards for Infra-Red Ear Thermometers. Geratherm®is certified
in accordance with Council Directive 93/42/EEC, Annex II and DIN EN ISO
13485 and is entitled to affix the CE-mark CE 0118 (Notified Body: LMET).
2 - GB
GB
3 - GB
• Store out of children’s reach! Measurement
of children’s temperatures must be conducted
under adult supervision!
• If the unit is dropped, false readings
may occur.
• The unit is intended for private household use.
• Do not apply a protective cap!
• The probe tip should be cleaned before each
use. It can be cleaned by wiping it with a cloth
or cotton-wool ball soaked in rubbing alcohol.
• If the lens is dirty, false readings may occur.
• Use of the thermometer is no substitute for
medical treatment!
• The unit has an off-set function to compensate
for the influence of the ambient temperature.
• When it is switched on, the unit conducts an
automatic self-testing procedure. Any faults are
shown on the display.
GB
WHAT IS BODY TEMPERATURE?
Body temperature refers to the internal tempe-
rature of the body (core temperature). ‘Normal’
body temperature fluctuates over the course
of 24 hours. It tends to be lowest in the early
morning and highest in the late afternoon. Body
temperature also varies depending on the part of
the body where the temperature is measured and
also differs with age. Hence, the body tempera-
ture measurement obtained depends on when
and where the temperature is taken and on who
the patient is.
Normal temperature
ranges - by point of
measurement
1)
Axillary
34.7 - 37.3 °C
Oral
35.5 - 37.5 °C
Ear
35.8 - 38.0 °C
Rectal
36.6 - 38.0 °C
Normal temperature
ranges - by age
2)
0 - 2
years
36.4 - 38.0 °C
3 - 10
years
36.1 - 37.8 °C
11 - 65
years
35.9 - 37.6 °C
> 65
years
36.8 - 37.5 °C
1) Chamberlain, J. M. Dr. med., and Temdrup, T. E. Dr.
med., “New Light on Ear Thermometer Readings”,
Contemporary Pediatrics, March 1994.
2) Chamberlain, J. M. Dr. med., and Temdrup, T. E. Dr.
med., “Determination of Normal Ear Temperature with
an Infrared Emission Detection Thermometer”, Annals
Emergency Medicine, January 1995
4 - GB
GB
TEMPERATURE MEASUREMENT - EAR
34.8 C/94.64 F
36.8 C/98.24 F
In order to ensure accurate measurement, the
patient should first rest for 20 minutes in the
same room as the thermometer. Immediately
after exercise or a bath, the temperature may
be raised.
Press the ON button [ON].
Insert the probe into the
auditory canal.
For the temperature to
be measured accurately
in the ear, the tip of the
probe must be directed
towards the eardrum.
5 - GB
GB
Press the ON button and
wait until you hear a beep.
If no beep is heard, press
and release the ON button
again.
As soon as you hear the
beep, remove the probe
from the auditory canal.
Read the temperature
displayed on the LCD
panel.
• It is advisable to take the temperature in the
same ear, since the values measured in the left
and right ear may be different.
• In the case of patients whose auditory canal is
curved, the temperature values measured may
deviate owing to anatomical influences.
• The ear should not be obstructed, for example
by excessive amounts of ear wax.
6 - GB
GB
To switch from forehead mode back to ear
mode, press MEM for 2 seconds.
TEMPERATURE MEASUREMENT -
FOREHEAD
In order to ensure accurate measurement, the
patient should first rest for 20 minutes in the
same room as the thermometer. Immediately
after exercise or a bath, the temperature may
be raised.
Always check that the
probe attachment is fixed
onto the thermometer.
Prior to measurement, the
forehead should be free of
perspiration, make-up, etc.
Press the ON button [ON].
Press MEM for 2 seconds,
it will switch to Forehead
Mode.
Place the probe tip with the
attachment on the patient’s
forehead. The recommended
area is on the left-hand side
above the left eyebrow (or on
the opposite side if you choo-
se the right eyebrow). Press
the ON button (you will hear
a beep) and keep it pressed
down as you slide the thermo-
meter towards the left, moving
it for at least three seconds
over the temporal artery. Then
remove the thermometer from
the point of measurement.
7 - GB
GB
Read the temperature
value displayed on the
LCD panel.
Temperatures measured in forehead
mode are displayed as comparable
rectal temperatures.
• The precise sensing system records the heat
emitted naturally through the skin. If the
thermometer is not moved over the temporal
artery, the temperature recorded may be
lower.
• It is advisable to take the temperature 2 - 3
times and to record the highest value, since
the position of the temporal artery varies from
person to person.
• In some patients the forehead temperature
may differ as a result of environmental factors
and it is advisable to take and record your
forehead temperature when healthy.
• The measurement of forehead temperature is
an excellent point of reference for recognising
raised body temperature.
• If you are in any doubt about the temperature
measured, please measure it again in the ear
and, for the sake of accuracy, record the high-
est value.
MEASURING WATER AND ROOM
TEMPERATURE
• Measurement should be conducted in ear
mode only.
• To measure water temperature, keep the probe
at least 1cm (± 0.5 cm) above the surface of
the water. The greater the distance from
the surface of the water, the less accurate the
measured values will be.
8 - GB
GB
MEMORY
Press the MEM button.
The first memory cell
number (“0”) will then
show the stored tempera-
ture (the last reading).
Press the MEM button
again. Now the reading
before last will be shown.
The other values stored
in the memory can be
viewed by pressing the
MEM button again.
CHANGING THE TEMPERATURE
SCALE
In order to switch over to
Fahrenheit (°F), press the
MEM button and then press
and release the ON button
while the memory cell
number is displayed on the
LCD panel.
9 - GB
ON
MEM
GB
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