AKO-575022 V3 Gas Transmitter
Product Information: V3 Gas Transmitter
The V3 Gas Transmitter is a device designed for detecting and
supervising gas concentration levels in industrial refrigeration
systems. The transmitter is equipped with a gas sensor that detects
gas concentration levels and displays the type of gas detected on
the device’s display. The device is designed to detect gases that
are heavier than air and always concentrated in the lowest part of
the refrigerated room or space.
The device comes with a warning that it 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 device is not suitable for areas classified as
potentially explosive. It also supervises a point and not an area.
If perimeter supervision is required, several sensors should be
installed around that area.
The device has working conditions that need to be followed, such
as avoiding handling refrigerant gases near the sensor. If this is
unavoidable, use Set Hold or Maintenance mode. The sensor should be
installed away from smoke outlets located in confined spaces or
from engines, generators, or motorised machinery (fork-lift trucks,
etc.). The detector should usually be installed in an area where
gas may concentrate, near places where gas leaks could start.
Product Usage Instructions
Before using the V3 Gas Transmitter, ensure that you have read
and understood all the warnings, working conditions, and
installation guidelines provided in the user manual.
- Choose an installation site that is protected from vibrations,
water, and corrosive gases and where the ambient temperature does
not exceed the value indicated in the technical data. - Avoid installing the device in areas classified as potentially
explosive. - If perimeter supervision is required, install several sensors
around that area. - 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. - Install the sensor away from smoke outlets located in confined
spaces or from engines, generators, or motorised machinery
(fork-lift trucks, etc.). - Install the detector in an area where gas may concentrate, near
places where gas leaks could start. - Leave a distance of around 50 cm free when choosing the
installation site.
Pressing once will mute the gas Pre-Alarm or Alarm sound if it
sounds (See parameter b03). 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.
For more information, visit www.ako.com
5753H012 Ed.02 en
V3 Gas transmitter
Quick guide
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.
DIG. IN
DI1 Gnd DI2
AKO-575022 AKO-575134A AKO-575404A AKO-575410A AKO-575507A AKO-575744
Remote Remote mute Set Hold
A B
Always disconnect the power supply to do the wiring. The wiring between the transmitter and the station must NEVER be installed in a 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)
Tr+ TrGnd 15V S Gnd 15V In Gnd Tr+ Tr-
Gnd 15V S Gnd
Tr+ TrGnd
o00=0: Connection to alarm station RS485 Pre-Alarm Alarm
NC C NO NC C NO
B
Gas
Gas
Pre-Alarm Alarm
Alarm station Input x
GAS
o00=1: Independent operation RS485 Pre-Alarm Alarm
NC C NO NC C NO
B
Gas Gas Pre-Alarm Alarm
12 – 30 Vdc
Detail of MODBUS connection (Wire ferrules included)
Description
Display
Gas sensor
Keypad
Fixed: Gas pre-alarm activated. Flashing: Gas alarm activated.
Fixed: Set Hold mode activated Flashing: Maintenance mode activated
The display shows the type of gas detected.
Fixed: CAMM module in operation Flashing: Malfunction in CAMM module
Bluetooth activated (CAMM module only)
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.
AKO ELECTROMECÁNICA , S.A.L. Avda. Roquetes, 30-38 08812 · Sant Pere de Ribes. Barcelona · Spain.
www.ako.com
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.
355753012 Rev.01 2022
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.
Operation
Parameters
Without alarms The display shows the current gas concentration in ppm. Parameter b02 allows you to fix a value below which the display will
The unit operating parameters are organised in different groups or families according to their function. The Def. column indicates the default parameters set in the factory. In order to access the programming menu, hold the SET key for 6 seconds, or until `’PRG” appears on the display. To modify the Pre-Alarm and Alarm levels, press SET for 3 seconds or until “Al3” appears on the display (Only if AL1=1).
always show zero.
This allows you to scroll through the different levels, or
This accesses the level shown on the display or,
This exits the parameter without saving changes,
Alarms
when setting a parameter, to change its value.
when setting a parameter, it accepts the new value.
returns to previous level, or exits programming.
The transmitter emits an acoustic alarm, the alarm indicator flashes and
activates the relays when certain gas concentration levels are exceeded. If the transmitter is connected to a station, the station will emit the acoustic alarm. The relays will be activated in both devices. There are two alarm levels depending on the concentration of gas detected: Pre-Alarm and Alarm. Both are factory preset but can be modified by means of parameters AL3 and AL6. These values comply with domestic and international regulations. However, please ensure that these values comply with current local regulations. In order to modify these values, parameter AL1 should be configured to 1.
AL
Level 1
Level 2
ALARM CONFIGURATION
Description
Values Def. Def. Max.
AL1 Alarm levels:
0: According to regulation 1: Set by user
AL2 Pre-Alarm 0: Disabled; 1: Enabled
AL3 Pre-Alarm Level (1)
AKO-575744 Other models
AL4 Pre-Alarm Differential
AL5 Pre-Alarm Delay (0: Disabled)
011
011
PPM
b02 / 4000 AL4+1 500
AL6
PPM 10 100 200
min. 0 0 15
{n0
Level 1
Level 2
INPUT AND OUTPUT CONFIGURATION
Description
Values Def.
{00
Reset to zero of the sensor (Calibration only) 0: Disabled 1: Reset to zero activated
0
{01
Setting the sensor (Calibration only) 0: Disabled 1: Setting activated
0
{11
Polarity of digital input 1 (Remote Mute) 0: Activates on opening contact; 1: Activates on closing contact
0
{21
Polarity of digital input 2 (Remote Set Hold) 0: Activates on opening contact; 1: Activates on closing contact
0
Def. Max. -1 -1 01 01
Technical specifications
Power supply………………………………………………………………12 – 30 Vdc Consumption Typical…………………………………………………………. 75 mA
AL6 Alarm Level (1) AL7 Alarm Differential
AKO-575744 Other models
8000 10000 PPM AL3
1000 2000 PPM 10 100 200
o00
Type of output 4/20 mA (Reading only) 0: Calibrated for alarm station; 1: Linear
ep Exit to level 1
001
Level 2
Level 1
Maximum…………………………………………………… 125 mA AL8 Alarm Delay (0: Disabled)
min. 0 0 15
INFORMATION (Reading only)
Pre-Alarm/Alarm relay …………………………… SPDT 30 Vdc, 2 A, cos j =1
ep Exit to level 1
Description
Values Def. Def. Max.
Level 2
Level 1
Working ambient temperature:
BASIC CONFIGURATION
PU Programme version
—
AKO-575744 …………………………………….-40 ºC to 50 ºC Other models …………………………………….-30 ºC to 50 ºC
Description Gc1 Type of gas to be measured (Reading only)
Values Def. Def. Max. —
PR Programme revision
—
Storage ambient temperature:
BU Bootloader version
—
AKO-575744 …………………………………….-40 ºC to 60 ºC
Gas to be measured with the Universal sensor (Only if Gc2 Gc1=brd1) ALL; 125; 134A; 404A; 407A; 407F; 410A;
ALL
BR Bootloader revision
—
tid
Other models …………………………………….-30 ºC to 60 ºC Range of maximum moisture permitted .0 – 95 % HR (without condensation)
448A; 449A; 513A; 452A; 32; 23; 455A (2)
PAR Parameter map revision
—
Protection degree……………………………………………………………….. IP 68 Type of sensor………………….. NDIR (Non-Dispersive Infrared Technology) Display range:
AKO-575744 …………………………………0 – 10000 x1 ppm
b01 Display
0: Measurement in PPM 1: Type of gas to be measured
0
Minimum value to be shown on the display (Lower
b02
values are shown as 0) Does not affect the values shown by communication (AKONet or CAMM
PPM
0
01 0 250
PCR CRC value of the programme BCR CRC value of the bootloader EP Exit to level 1
—–
Other models…………………………………..0 – 2000 x1 ppm
module)
Estimated working life………………………………………………………. 7 years Dimensions ……………………………… 202 mm (W) x 82 (H) x 55.5 mm (D)
Function of the mute key (Applicable to Alarm and Pre-Alarm)
MESSAGES
b03 0: Disabled
1: Deactivate acoustic alarm
0 1 3 pal Gas pre-alarm activated. Flashing together with the gas concentration.
bcn
Default parameters
To set the device to factory default, switch off the power supply and switch it on again, press the sequence N, Q and SET within 2 minutes. The display shows the message dFp (default parameters) with a choice of two options:
2: Deactivate relay 3: Deactivate both
b04 Acoustic alarm 0: Disabled 1: Enabled
b10
Access code (password) function 1: Block access to parameters
0: Disabled; 2: Block keypad
b11 Access code (password) b20 MODBUS address
al Gas alarm activated. Flashing together with the gas concentration. 011
scn Initialisation process of the gas sensor. This may last for up to 3 minutes.
002
Error or malfunction of the sensor. The Pre-Alarm relay is activated, the transmitter emits
0
0 99
es
3 alert tones every 2 minutes and the AL icon flashes. Deactivate the power supply and activate it again. If after a few seconds the error persists, please contact your technical
1 (3) 247
support centre.
0: Parameters are not modified 1: All parameters are reset to their default values.
b21 MODBUS speed
0: 9600 bps 1: 19200 bps 2: 38400 bps 3: 57600 bps
b22
STOP bits for MODBUS communication 1: 1 STOP bit, 2: 2 STOP bits
b23
MODBUS communication parity 0: No parity, 1: Odd, 2: Even
0 0 3 tsH The sensor has reached its maximum working temperature. tSl The sensor has reached its minimum working temperature.
112 (1) In order to modify these levels, parameter AL1 should be configured to 1.
0 0 2 (2) R-450A, R-442A, R-454A, R-454C, R-1234YF, R-1234ZE are detected using
EP Exit to level 1
GC2=ALL.
(3) The MODBUS address will be shown on the transmitter label by default.
Industrial refrigeration: control and safety | AKO Group
