AKO-575xxx
Gas transmitter
Quick guide
5750H012 Ed.04
AKO ELECTROMECÁNICA , S.A.L.
Avda. Roquetes, 30-38
08812
•
Sant Pere de Ribes.
Barcelona
•
Spain.
Tel.: +34 902 333 145
Fax: +34 938 934 054
www.ako.com
GB
We reserve the right to supply materials that might vary slightly to those described in
our Technical Sheets. Updated information is available on our website.
Warning
-Transmitters / detectors should be installed in a place protected from vibrations, water and corrosive gases, where the ambient temperature does not exceed the value indicated in the technical data.
-The transmitters / detectors are not suitable for areas classified as potentially explosive.
-Transmitters/detectors supervise a point and not an area. If the gas leak does not reach the sensor, or the level of concentration in that point does not reach the foreseen values
according to the type of gas no alarm will be activated. If perimeter supervision is required, several sensors should be installed around that area.
Working conditions:
-Avoid handling refrigerant gases near the sensor. If this is unavoidable, use Set Hold or Maintenance mode. Do not paint the sensor or place it near solvents or paints. Exposure to acetone vapours may
generate false alarms.
-The sensor should be installed away from: -Smoke outlets located in confined spaces or from engines, generators or motorised machinery (fork-lift trucks, etc.).
-Particularly damp areas or areas with strong ventilation.
-The detector should usually be installed in an area where gas may concentrate, near places where gas leaks could start
-The gases currently used in industrial refrigeration, for which this transmitter has been designed, are heavier than air. They are therefore always concentrated in the lowest part of the refrigerated room or
space. Please take this into consideration when choosing the installation site. It is advisable to leave a distance of around 50 cm free.
B
A
A
Gnd
DI1
DI2
DIG. IN
Remote
Set Hold
Remote
Mute
Description
B
C
C
NC
NC
NO
NO
Gas
Pre-Alarm
Gas
Alarm
Tr
-
Tr+
Gnd
RS485 Pre-Alarm
Alarm
Alarm station
1N{
=
1
: Connection to alarm station
15V
S
Gnd
B
C
C
NC
NC
NO
Gas
Pre-Alarm
Gas
Alarm
Tr
-
Tr+
Gnd
RS485 Pre-Alarm
Alarm
1N{
=
2
: Independent operation
NO
15V
S
12 - 30 Vdc
Gnd
Always disconnect the power supply to do the wiring.
The wiring between the transmitter and the station must
be installed in a
NEVER
conduit together with power, control or power supply cables.
Cables for wiring the relay contact should have an adequate section depending on the unit
to be connected.
Certain international standards maintain that the power supply of the alarm should originate
from a different circuit to that used by the refrigeration and ventilation system.
Please ensure
that you comply with current local regulations.
If connecting to a MODBUS network the double connection strips included must be used
(see box)
3
5
5
7
5
0
0
1
2 R
ev 0
3 2
0
1
8
Gas sensor
Keypad
Display
If the gas Pre-Alarm or Alarm sounds, pressing once will mute the alarm tone (See parameter
b03
).
In the programming menu, it exits the parameter without saving changes, returns to previous
level or exits programming.
Pressing for 3 seconds activates or deactivates Set Hold mode.
Pressing for 6 seconds activates or deactivates maintenance mode.
In the programming menu it allows scrolling around the different levels, or during the setting of
a parameter, changing its value.
Pressing once (< 1 second) will show the type of gas detected, the date and time in sequential order.
Pressing for 3 seconds displays the Pre-Alarm and Alarm levels that have been configured.
In the programming menu it allows scrolling around the different levels, or during the setting of a
parameter, changing its value.
Pressing for 3 seconds accesses the configuration of alarm and pre-alarm levels.
Pressing it for 6 seconds accesses the advanced programming menu.
In the programming menu, it accesses the level shown on the display or, during the setting of
a parameter, accepts the new value.
Fixed:
Gas pre-alarm activated.
Flashing:
Gas alarm activated.
Fixed:
Set Hold mode activated
Flashing:
Maintenance mode activated
Fixed:
CAMM module in operation
Flashing:
Malfunction in CAMM module
Bluetooth activated (CAMM module only)
The display shows the type of gas detected.
The display shows the current gas concentration in ppm (parts per million).
The value displayed should be multiplied by 10.
Gas alarm on mute
Unit in programming mode.
Tr
-
Tr+
Gnd
Detail of MODBUS connection
(Wire ferrules included)
GAS
15V
In
Gnd
Input x
