GERATHERM GEF-100 Instructions For Use Manual - User Manual

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INSTRUCTIONS FOR USE

Geratherm Duotemp GEF-100

DIGITAL EAR AND

FOREHEAD THERMOMETER

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

Speci

cations

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

Certi

cate of guarantee

14 - 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 certi

in accordance with Council Directive 93/42/EEC, Annex II and DIN EN ISO
13485 and is entitled to af

x the CE-mark CE 0118 (Noti

ed Body: LMET).

2 - 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 in

uence of the ambient temperature.

•  When it is switched on, the unit conducts an
  automatic self-testing procedure. Any faults are
  shown on the display.

WHAT IS BODY TEMPERATURE?

Body temperature refers to the internal tempe-
rature of the body (core temperature). ‘Normal’
body temperature

uctuates 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

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

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

TEMPERATURE MEASUREMENT - EAR

34.8 C/94.64 F

36.8 C/98.24 F

In order to ensure accurate measurement, the
patient should

rst 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

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 in

uences.

• The ear should not be obstructed, for example

by excessive amounts of ear wax.

6 - 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

rst 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

xed

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

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

MEMORY

Press the MEM button.

The

rst 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

MEM

When the symbol ap-

pears on the LCD panel,

the battery needs to be

replaced.

Press down on the part

of the cover marked

and push the cover in

the direction of the arrow

shown in the illustration.

Remove the battery.

Attention: Avoid using

any sharp metal object

in this operation.

Insert a new CR2032

lithium battery, taking care

to match the polarities (+)

as indicated.

Replace the battery cover

by pushing it in the direc-

tion indicated by the arrow

in the illustration.

If no signal is received after changing the battery,
insert the new battery again and press the ON
button.
When disposing of the unit and/or batteries, be
sure to adhere to current regulations.

BATTERY REPLACEMENT AND
INSERTION

In order to switch over to
Celcius (°C), press the
MEM button and then press
and release the ON button
while the memory cell
number is displayed on the
LCD panel.

10 - GB

MEM

FAULT INDICATION

FAULT OR

FAULT

SYMBOL

FAULT DE-

SCRIPTION

CORRECTIVE

MEASURE

No display

on the LCD

panel

The battery

has run out.

Incorrect bat-

tery polarity.

Replace the

battery. Ple-

ase note:

The (+) side

of the battery

must face

upwards.

Measurement

not possible

(or an abnor-

mal value is

displayed)

The thermo-

meter is not

ready.

Wait until the

°C symbol is

displayed.

An abnormal

temperatu-

re value is

displayed.

The probe

tip is dirty or

damaged. Did

you hear the

beep after

pressing the

ON button?

Clean the

probe tip or

get it repaired.

Wait until

you hear the

beep before

removing the

thermometer

from the ear or

forehead.

LO or HI

symbol is

displayed

The tempera-

ture measured

is outside the

measuring

range

(0 °C -100 °C

32 °F-212°F)

Low:

temperature

too low

High:

temperature

too high

Check that the

probe tip is

clean and that

the thermome-

ter is properly

inserted into

the ear or

placed on the

forehead.

11 - GB

symbol is

displayed

The battery

has run out.

Replace the

battery.

symbol is

displayed

The thermo-

meter is not

yet ready for

measuring.

The ON but-

ton was not

pressed at the

right time.

Wait until the

°C symbol is

displayed on

the panel.

Then press

the ON button

as soon as

you begin

measuring.

symbol is

displayed

The ambient

temperature

is outside

the operating

temperature

range or is

changing too

fast.

To ensure

accurate

measurement,

let the ther-

mometer rest

at operating

temperature

for 20 minutes

prior to use.

12 - GB

LIMITED WARRANTY

This thermometer is guaranteed for 2 years from
the date of purchase against any manufacturing
defect, conditional upon normal household use.
If your unit does not work owing to defective parts
or assembly, we undertake to repair it without
charge. Apart from the battery, all parts of the
unit are subject to this warranty. Damage to the
unit caused by improper use is not covered by
this warranty. We recommend that the accuracy
of the unit be checked annually by an authorised
laboratory (in Germany this is compulsory). This
checking procedure is not a service provided un-
der the warranty. Use of the unit under operating
conditions outside the range indicated may result
in false readings.
The period of manufacture is indicated by the
LOT number on the unit. The

rst two digits

indicate the month and the third to sixth digits the
year of manufacture.

Manufacturer:

Geratherm Medical AG
Fahrenheitstraße 1
D-98716 Geschwenda
Deutschland

CERTIFICATE OF GUARANTEE

Geratherm

guarantees the infra-red dual

thermometer against any manufacturing defect
for two years from the date of purchase if it is re-
turned to the dealer from whom it was purchased.
During this period the unit will be repaired or
replaced free of charge if the fault is due to defec-
tive design or assembly.

13 - GB

This guarantee does not cover any damage or
defect caused by improper handling resulting
from use that is not in compliance with these
instructions or from unauthorised attempts to
repair it. Your local dealer cannot declare this
manufacturer’s guarantee invalid, but may ex-
pand it by additional guarantees at his discretion
and at his own expense.

Model No.: . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Serial No.: . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Date of purchase: . . . . . . . . . . . . . . . . . . . . . . . .

Dealer’s signature: . . . . . . . . . . . . . . . . . . . . . . .

Invoice No. / Receipt No.: . . . . . . . . . . . . . . . . . .

Name and address of dealer: . . . . . . . . . . . . . . .

Manufacturer:

Geratherm Medical AG
Fahrenheitstraße 1
D-98716 Geschwenda
Deutschland

EAR AND FOREHEAD THERMOMETER

Geratherm

duotemp

GEF-100

14 - GB

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