MHW 0008 – DK 1695 | Version 002 – 21/08/2019 | custo med GmbH
2
Holter
Hardware, description of device for custo watch
[2] Holter hardware, custo watch |
page 18
2.8
Technical data and system requirements
Technical data custo watch
Number of ECG channels
adjustable, 1 – 3
ECG sampling rate
adjustable, 125 / 250 / 500 / 1000 Hz
Heart rate range
4 to 250 (beats per minute)
Radio frequency band
ISM 2.4 GHz
Radio transmission power
1 mW maximum
Radio performance
Stationary frequency
Radio modulation
GFSK
Radio transmission rate
2 Mbps / 1 Mbps / 250 kbps
Connection to the PC
USB (docking station)
Power supply
Rechargeable lithium-polymer battery with 280 mAh
Battery runtime
1)
approx. 4 days when recording 3 channels
approx. 30 days on standby (400 μA standby current)
Charging time of battery
approx. 3 hours (when fully discharged)
Charging current: max. 130 mA
Display
OLED display (white, 96 * 64 px)
Dimensions
Basic body without straps
approx. 55 * 38 * 15 mm (L * W * H)
Strap standard:
min. 160 mm – max. 200 mm
Strap large:
min. 180 mm – max. 260 mm
Weight
approx. 40 g
Ingress protection rating
IP 65
Operating conditions
Temperature
+10°C ... +45°C
Air humidity
10 ... 95 % rH
Air pressure
700 ... 1060 hPa
Transport and storage
Temperature
-20°C ... +45°C
conditions
2)
Air humidity
10 ... 95 % rH
Air pressure
700 ... 1060 hPa
Classification
Device with internal power supply,
Class IIa, Type BF
Underlying standards
DIN EN 60601-1, DIN EN 60601-1-2,
DIN IEC 60601-2-47
Technical data custo docking station
Connection to the PC
USB (micro USB cable)
Power supply
5 V via PC USB
Dimensions approx.
140
* 92 * 95 mm (L * W * H)
Weight
approx. 308 g
Operating conditions
Temperature
+10°C ... +45°C
Air humidity
10 ... 95 % rH
Air pressure
700 ... 1060 hPa
Transport and storage
Temperature
-20°C ... +45°C
conditions
Air humidity
10 ... 95 % rH
Air pressure
700 ... 1060 hPa
1) The rechargeable battery
runtime is dependent, among other
things, on the distance and obstacles
between the receiver and transmit-
ter (condition of the transmission
path) and the age and condition of
the rechargeable battery. After 300
or more charging cycles, the battery
has a capacity of 80 % of the initial
capacity.
Defi nition of charge cycle:
During a charge cycle the entire
battery power is used, however,
this does not have to occur in a
single charging operation. For
example, you can use a device for
several hours on a particular day,
use approximately half the capacity,
and then fully charge it again. If
the same procedure is repeated on
the following day, this is equal to
just one charging cycle and not two
charging cycles. It can therefore take
a few days for a charge cycle to be
fully completed.
2) If the custo watch is to be
stored for a longer period of time,
it should be recharged regularly.
Recommendation:
every 3 months to approx. 60 %.
