Philips Consumer Lifestyle DL7421 用户手册
Feature
Specification
Measure
ment range
Heart rate: 30-200 beats per
minute (bpm).
Resting respiration rate: 5-45
breaths per minute
Accuracy
Heart rate: ± 10 bpm or 10%
(whichever is greater)
Resting heart rate: ± 3 bpm
Total energy expenditure: ± 15%
Resting respiration rate: ± 5
breaths per minute
Steps: ± 5%
Activity recognition (walking,
running, cycling, other): 90%
accurately classified
Normal
operating
conditions
Temperature: 5 °C / 41 °F to 40 °C /
104 °F.
Relative humidity: 15% to 93% RH.
Atmospheric pressure: 700 hPa to
1060 hPa
Storage and
transporta
tion
conditions
Temperature: -20 °C / -4 °F to
60 °C / 140 °F.
Relative humidity: < 93%.
Atmospheric pressure: 700 hPa to
1060 hPa
Net weight
Approx. 25 g / 0.9 oz
External
dimensions
Approx. 200 mm × 24 mm / 7 7/8 x
15/16 in (small)
Approx. 230 mm × 24 mm / 9 1/16
x 15/16 in (large)
Height of housing: 11 mm / 7/16 in
Height of strap: 3 mm / 1/8 in
Accessories
Charger, user manual
Mode of
operation
Continuous operation
Degree of
protection
Type BF applied part
Device
classification
Battery Powered Mode: Internally
Powered ME Equipment. Class II
ME Equipment
Materials
PC, ABS, TPU
Expected
lifetime of
the device
3 years. Earlier signs of failure
could be wear of the strap or
reduced operating time.
Ingress
Protection
IPX5/IPX7 (health band)
IP21 (charger)
Network
connection
type
Bluetooth Low Energy v4 (GATT
and security manager)
Frequency
band
2402-2480 MHz
Modulation
GFSK
Effective
radiated
power
Max. +5dBm
Compliance information
Electromagnetic emissions and immunity
The device is approved according to EMC safety
standard EN 60601-1-2. It is designed to be used in
typical domestic environments.
Wireless communications equipment such as
wireless home network devices, mobile phones,
cordless telephones and their base stations,
walkie-talkies can affect this equipment and
should be kept at least a distance d = 13 cm (5 1/8")
away from the equipment.
standard EN 60601-1-2. It is designed to be used in
typical domestic environments.
Wireless communications equipment such as
wireless home network devices, mobile phones,
cordless telephones and their base stations,
walkie-talkies can affect this equipment and
should be kept at least a distance d = 13 cm (5 1/8")
away from the equipment.
EMC Guidance
- The device needs special precautions regarding
EMC and needs to be installed and put into
service according to the EMC information
provided in this document.
service according to the EMC information
provided in this document.
- Portable and mobile RF communications
equipment can affect the device.
- Wireless communications equipment such as
wireless home network devices, mobile phones,
cordless telephones and their base stations,
walkie-talkies can affect this equipment and
should be kept at least a distance d = 13 cm (5
1/8") away from the equipment.
cordless telephones and their base stations,
walkie-talkies can affect this equipment and
should be kept at least a distance d = 13 cm (5
1/8") away from the equipment.