SYMBOL INFORMATION
MESSAGE
WHAT IT MEANS
WHAT TO DO
Appear when ambient
temperature is outside of
the operating temperature
range.
Only operate the thermometer
in ambient temperature range of
10°C to 40°C (50°F to 104°F).
Surface temperature
measured outside of the
measurement range (0.0 to
100.0 °C).
Review the instructions and
re-start the measurement
procedure.
Low or no power.
Replace with new batteries.
Measured temperature
below the measurement
range (below 32.0 °C).
Review instructions and repeat
measurement. Make sure the
distance from forehead is not
greater than 7cm (2”), and that
the forehead is clear.
Measured temperature
above the measurement
range (above 43.0 °C).
Review instructions and repeat
measurement. Consult with a
physician if the problem
persists.
MAINTENANCE
• RT-1242 (TD-1242) has no user serviceable internal parts except battery
replacement.
• Always replace Sensor Cap (or place in cradle) when not in use.
• Store in a dry location free of dust and away from direct sunlight.
• Use a soft dry cloth to clean the plastic housing or a cloth dampened with a
solution of water and mild detergent. Occasionally, 70% isopropanol solution
may be used. Never submerge in liquid.
• The sensor window is recessed to assist in keeping it clean and free of
debris. Inspect the lens and remove any debris. Smudges may be cleaned by
gently wiping the window with a small foam-tipped swab (non-lining)
moistened with 70% alcohol. Wait 10 minutes prior to taking temperatures.
TROUBLESHOOTING
SPECIFICATIONS
Model No.: RT-1242 (TD-1242)
Dimension & Weight: 155.46 (L) x 40.14 (W) x 39.45 (H) mm, 61.8g (without
battery)
Power Source: 2 x 1.5V AAA alkaline batteries
Battery Life: With new batteries, approx. 3,000 measurements.
Displayed Temperature range
• Forehead: 32°C to 43°C (89.6°F to 109.4°F)
• Surface: 0°C to 100°C (32°F to 212°F)
Display Resolution: 0.1°C / 0.1°F
Accuracy: Meet the accuracy requirement specified in ASTM E1965-98 and
ISO 80601-2-56
• Forehead:
±0.2°C (±0.4°F) for the range of 35.0°C to 42.0°C (95°F to 107.6°F) / ±0.3°C
(±0.5°F) for the range of <35.0°C (95°F) or >42.0°C(107.6°F)
• Surface: ±1°C (±2°F)
Temperature Unit: °C (Default) or °F
Operating Temperature range: 10°C to 40°C (50°F to 104°F)
Operating Humidity: below 85% relative humidity
(non-condensing)
Operating Atmosphere Pressure: 700hPa to 1060hPa
Storage / Transportation Temperature range: -20°C to 60°C (-4°F to 140°F)
Storage / Transportation Humidity: below 85% relative humidity
(non-condensing)
Memory Capacity: 30 measurements
Ingress Protection Rating: IP22
Expected Service Life: 3 years
The specifications may be changed without prior notice.
REFERENCE STANDARDS
Device Standard:
Device Corresponds to the requirements of the standard for infrared
thermometers ASTM E1965-98, EN ISO 80601-2-56:2017, EN
60601-1-2:2015, EN 60601-1:2006+A12:2014, EN 60601-1-6:2010
Electromagnetic Compatibility:
Device fulfills the stipulations of the standard EN 60601-1-2.
The stipulations of EU-Directive 93/42/EEC for Medical Devices Class Ila have
been fulfilled.
Electromagnetic environment-guidance
(for home and professional healthcare environment)
Emission test
RF emissions CISPR 11
RF emissions CISPR 11
Harmonic emissions IEC 61000-3-2
Voltage fluctuations / flicker emissions IEC 61000-3-3
Group 1
Class B
Not applicable
Not applicable
Compliance
Manufacturer’s declaration-electromagnetic emissions
RT-1242 (TD-1242) is intended for use in the electromagnetic environment (for home and professional healthcare) specified below.
The customer or the user of the RT-1242 (TD-1242) should assure that it is used in such an environment.
RT-1242 (TD-1242) uses RF energy only for its internal function.
Therefore, its RF emissions are very low and are not likely to
cause any interference in nearby electronic equipment.
RT-1242 (TD-1242) is suitable for use in all establishments,
including domestic establishments and those directly connected
to the public low-voltage power supply network that supplies
buildings used for domestic purposes.
Electromagnetic environment-guidance
(for home and professional healthcare environment)
Electrostatic
discharge(ESD) IEC
61000-4-2
Compliance level
IEC 60601 test level
Immunity test
Manufacturer’s declaration-electromagnetic immunity
RT-1242 (TD-1242) is intended for use in the electromagnetic environment (for home and professional healthcare) specified below.
The customer or the user of the RT-1242 (TD-1242) should assure that it is used in such an environment.
Floors should be wood, concrete or ceramic tile. If floors are
covered with synthetic material, the relative humidity should
be at least 30%
Mains power quality should be that of a typical home and
professional healthcare environment.
Mains power quality should be that of a typical home and
professional healthcare environment.
RT-1242 (TD-1242) power frequency magnetic fields
should be at levels characteristic of a typical location in a
typical home healthcare environment.
Mains power quality should be that of a typical home and
professional healthcare environment. If the user of the
RT-1242 (TD-1242) requires continued operation during
power mains interruptions, it is recommended that the
RT-1242 (TD-1242) be powered from an uninterruptible
power supply or a battery.
Electrical fast
transient/burst IEC
61000-4-4
Surge IEC
61000-4-5
Power frequency(50,
60 Hz) magnetic field
IEC 61000-4-8
Voltage Dips, short
interruptions and
voltage variations on
power supply input
lines IEC 61000-4-11
Contact:±8 kV
Air±2 kV,±4 kV,
±8 kV,±15 kV
Not applicable
Not applicable
Not applicable
Not applicable
30 A/m
50 Hz and 60 Hz
Voltage dips:
Not applicable
Not applicable
Not applicable
Voltage interruptions:
Not applicable
Contact:±8 kV
Air±2 kV,±4 kV,
±8 kV,±15 kV
+ 2kV for power supply lines
+ 1kV for input/output lines
+ 0.5kV, +1kV line(s) to line(s)
+ 0.5kV, +1kV,+ 2kV line(s) to
earth
30 A/m
50 Hz or 60 Hz
Voltage dips:
0 % UT; 0,5 cycle
0 % UT; 1 cycle
70 % UT; 25/30 cycles
Voltage interruptions:
0 % UT; 250/300 cycle
NOTE
UT is the a.c. mains voltage prior to application of the test level.
Separation distance according to frequency of transmitter
m
0,01
0,1
1
10
100
N/A
N/A
N/A
N/A
N/A
0,12
0,38
1,2
3,8
12
0,23
0,73
2,3
7,3
23
Rated maximum output power
of transmitter
W
150 kHz to 80 MHz
d =1,2√P
80 MHz to 800 MHz
d =1,2√P
800 MHz to 2,7 GHz
d =2,3√P
Recommended separation distance between
portable and mobile RF communications equipment and RT-1242 (TD-1242)
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be
estimated using the equation applicable to the frequency of the transmitter, where p is the maximum output power rating of the transmitter
in watts (W) according to the transmitter manufacturer.
NOTE1
At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE2
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
385
380 –390
TETRA 400
Pulse
modulation b)
18 Hz
1,8
0,3
27
27
710
745
780
704 – 787
LTE Band 13,
17
Pulse
modulation b)
217 Hz
0,2
0,3
9
9
5 240
5 500
5 785
5 100 –
5 800
WLAN 802.11
a/n
Pulse
modulation b)
217 Hz
0,2
0,3
9
9
810
870
930
800 – 960
GSM 800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
Pulse
modulation b)
18 Hz
2
0,3
28
28
2 450
2 400 –
2 570
Bluetooth,
WLAN,
802.11 b/g/n,
RFID 2450,
LTE Band 7
Pulse
modulation b)
217 Hz
2
0,3
28
28
1 720
1 845
1 970
1 700 –
1 990
GSM 1800;
CDMA 1900;
GSM 1900;
DECT;
LTE Band 1, 3,
4, 25; UMTS
Pulse
modulation b)
217 Hz
2
0,3
28
28
450
430 – 470
GMRS 460,
FRS 460
FM c)
±5 kHz deviation
1 kHz sine
2
0,3
28
28
Test
frequency
(MHz)
Maximum
power
(W)
Distance
(m)
IMMUNITY
TEST LEVEL
(V/m)
Compliance LEVEL
(V/m) (for home and
professional healthcare)
Band
a)
(MHz)
Service
a)
Modulation
b)
Manufacturer’s declaration-electromagnetic immunity
Test specifications for ENCLOSURE PORT IMMUNITY to RF wireless communications equipment
RT-1242 (TD-1242) is intended for use in the electromagnetic environment (for home and professional healthcare) specified below.
The customer or the user of RT-1242 (TD-1242)should assure that it is used in such an environment.
NOTE
If necessary to achieve the IMMUNITY TEST LEVEL, the distance between the transmitting antenna and the ME EQUIPMENT or
ME SYSTEM may be reduced to 1 m. The 1 m test distance is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50 % duty cycle square wave signal.
c) As an alternative to FM modulation, 50 % pulse modulation at 18 Hz may be used because while it does not represent actual
modulation, it would be worst case.
Electromagnetic environment-guidance
(for home and professional healthcare environment)
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
Compliance level
IEC 60601 test level
Immunity test
Manufacturer’s declaration-electromagnetic immunity
RT-1242 (TD-1242) is intended for use in the electromagnetic environment (for home and professional healthcare) specified below.
The customer or the user of the RT-1242 (TD-1242) should assure that it is used in such and environment.
Recommended separation distance:
d = 1,2 √P
d = 1,2 √
P 80MHz to 800 MHz
d = 2,3 √
P 800MHz to 2,7 GHz
Where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter
manufacturer and d is the recommended separation
distance in metres (m).
Interference may occur in the vicinity of equipment marked
with the following symbol:
Not applicable
Not applicable
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
3 Vrms:
0,15 MHz – 80 MHz
6 Vrms:
in ISM and amateur
radio bands between
0,15 MHz and 80 MHz
80 % AM at 1 kHz
10 V/m
80 MHz – 2,7 GHz
80 % AM at 1 kHz
NOTE1
At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
Portable and mobile RF communications equipment should
be used no closer to any part of RT-1242(TD-1242)
including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
RT-1242 (TD-1242) is intended for use in an electromagnetic environment (for home and professional healthcare) in which radiated RF
disturbances are controlled. The customer or the user of RT-1242 (TD-1242) can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and RT-1242 (TD-1242)
as recommended below, according to the maximum output power of the communications equipment.
Symbol
Referent
Consult instructions for use
This device does not belong to household waste and must be
returned to a collection point for recycling electric and electronic
devices according to local laws. If it contains batteries, the
batteries should be removed and disposed in accordance with local
regulations for separate collection of spent batteries.
Manufacturer
Serial number
Caution
Authorized representative in the European Community
CE mark
FDA mark
Symbol
Referent
Type BF applied part
Temperature limit
Humidity limitation
Resistant to liquid ingress
RoHS Compliance
IP22
0123
