Specifications,functions
and features of HELPCALLER
Audio help call generation unit
item
specification
remarks
sensitivity
oscillation
90-170
gal or greater
corresponding
to earthquake of scale 5
tilt
20
degrees or greater
output
for help calling
oscillation
lamp
flashing, alarm sound
tilt
lamp
flashing, alarm sound, help call message
battery
type
nickel-cadmium
battery
6
V
lifetime
about
two years
continuous
standby time
about
four days (after being fully charged)
operation
in the event of power failure
continuous
operable time
about
four hours (after being fully charged)
operation
in the event of power failure
radio
wave
receiving
frequency
426MHz
band
receiving
sensitivity
MAX
6dBμV
power
source adapter
AC
input
AC
100V±10V (50/60Hz)
DC
output
DC
9V
appearance
structure
drip-proof
type II (JIS C0920)
waterproofed
for routine use
size
w70mm
x d65mm x h120mm
exclusive
of projections and antenna
weight
about
470 g
inclusive
of battery
functions
and features
The unit is adapted to be mounted outside the house so that
even if the house has collapsed in the event of an earthquake,
the unit will not be buried under debris and can continue to emit
the help call message.
The loudness of the emitted help call message is 100 dB which
corresponds to that of the sound sensed under the railroad overpass.
Help signal transmitting unit
item
specification
remarks
communication
line
used
line
telephone
line (DP line/PB line)
DC
resistance
about
280Ω
help
call message
recording
type
IC
recording
recording
time
CH1-3:
30 seconds/channel
CH4: 70 seconds
recipient
number
of recipients
three
communication channels, three recipients for each communication channel
number
of digits of telephone number
max
20 digits
outside
trigger/ output terminal
capacity of OUT terminal
DC
30V 0.5A
radio
wave
receiving
frequency
426MHz
band
receiving
sensitivity
MAX
6dBμV
power
source adapter
AC
input
AC
100V±10V (50/60Hz)
DC
output
DC
9V
appearance
size
w175mm
x d75mm x h225mm
exclusive
of projections and antenna
weight
about
800 g
functions
and features
Connectable to various types of telephone set
A flash memory is used to permanently store input data and messages,
etc. and thereby eliminate the need for routine maintenance.
The dialing is unlimitedly repeated until connection is made
with all the recipients for each communication channel.
Guidance messages in data setting operation can be provided
in English.
Radio transmitter
item
specification
remarks
battery
type
CR2016
type 3V lithium battery x 2
lifetime
about
two years
in
the case where no transmission is made
possible
number of transmissions
about
300
about
100 operations of the transmission button
radio
wave
transmission
frequency
426MHz
band
transmission
power
1mW
or less
wave
type
F1D
wristband
type
elastic
wristwatch type
width
16mm
appearance
structure
drip-proof
type II (JIS C0920)
waterproofed
for routine use
size
w35mm
x d35mm x h18mm
exclusive
of projections
weight
about
21 g
exclusive
of the band
functions
and features
The hardware structure is designed so as to avoid inadvertent
false operations.
The small power radio wave can allow the transmitted radio
signal to reach a point 100 meters away if there are no obstructions.
Up to 10 radio transmitters can be used in one system.
