Impact / Impact Pro / Impact Pro IR Operating Instructions
29
4�5�2 Using Safelink
Connect the Safelink cable between two instruments. Turn on each instrument and
from the user menu on each instrument select the Safelink mode.
Safelink Mode
Entrant
Attendant
On one instrument select Attendant. When selecting the
Attendant on one instrument the instrument will display
‘locating’ while it attempts to connect with the other
instrument. Once established each instrument will briefly
display ‘Configuring’. The instrument will then show the
readings – ensure that the Safelink symbols appear on
the display. To check the integrity of the communications it is recommended that a
message be sent from the Attendant to the Entrant. Whenever a message must be
responded, the instrument will flash its green LEDs and sound its audible alarm at
a rate of once per second.
Until the Safelink cable is disconnected both instruments will remain in Safelink
mode.
4.5.2.1 Attendant Instrument
020.9
00
02
CO
%V/V
ppm
Flm
H2S
%LEL
ppm
The instrument will display the readings being monitored
on the Entrant instrument. The symbol is used to
indicate the Attendant’s instrument. When the symbol is
static it indicates that Safelink communications are
occurring. When it is flashing the Safelink has become
disconnected and the readings will all show ‘---‘, until the
link is restored or the user exits from Safelink mode. All display modes from the
Entrant’s instrument (peak, STEL, etc) are available to the Attendant.
The status screen shows the duration that Safelink has
been in operation, and the status of the connection as
either Normal, Emergency, or Link failure.
Select Message
Evacuate Area
Message1
Message2
Are you OK?
By pressing the 3 button the Attendant has access to a
menu, to select a message to send to the Entrant. These
are configurable using the PC software.
The Select Message menu gives access to two additional actions:
Emergency, which immediately issues a ‘Get Out’ warning to the Entrant.a)
Exit, to enable termination of the Safelink without removing the cable.b)
4.5.2.2 Entrant instrument
The symbol is used to indicate the Entrant’s instrument. When the symbol is
static it indicates that Safelink communications are occurring. When it is flashing
the Safelink has become disconnected.
Only the instantaneous values are shown, although all alarm conditions will operate
as normal.
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