Gas sensor
Keypad
Display
Description
Constant:
Gas pre-alarm activated.
Quick flashing:
Gas alarm activated.
Slow flashing:
Gas alarm saved.
Quick-flashing, 3 short beeps every
2 minutes:
Sensor error
Constant:
Set Hold mode activated
Flashing:
Maintenance mode activated
For gas Pre-alarm / Alarm, pressing briefly silences the alarm tone.
During AUTO-CONFIGURATION, enable / disable the audible alarm.
Pressing both keys for 6 seconds:
Activation / deactivation of the second set of Pre-alarm / Alarm levels.
Should there be a sensor error, restart the detector.
Pressing for 3 seconds activates or deactivates Set Hold mode.
Pressing for 6 seconds activates or deactivates maintenance mode.
Second set of Pre-alarm / Alarm levels activated
Audible alarm silenced or disabled
(See AUTO-CONFIGURATION)
Powered via an external power supply
(Independent operation)
Detector initialisation
Each time that the detector is supplied with power, an initialisation process begins, during which the
key flashes. During this process,
the alarms, digital inputs and keyboard are disabled.
After a few moments, the detector begins to operate normally. However, at least 5 minutes should elapse for optimal operation to be reached.
AUTO-CONFIGURATION function
(only in independent operation)
Allows for digital input polarity to be configured and for the audible alarm to be enabled / disabled.
1.- Ensure that both digital inputs are in standby (not activated)
2.- Disconnect the power supply, connect it again and press the ‘AUTO-CONFIGURATION’ push-button 5 consecutive times before 2 minu-
tes have elapsed. The
and
indicators light up alternately.
3.- Press the
key to enable / disable the mute key.
4.- Keep the “AUTO-CONFIGURATION” push-button pressed down for 5 seconds to save the configuration of the digital inputs.
Optionally, we can return the detector to its factory settings. To do so, press the “AUTO-CONFIGURATION” push-button 5 times
before step 4.
Pre-alarm jumper
Allows for Pre-alarm detection to be enabled / disabled. Before using this option, ensure that regulations allow for two alarm levels.
When using the ammoniac (AKO-57613) or CO
2
(AKO-57615) detector, the pre-alarm must be enabled.
Pre-alarm and Alarm delay switch
Define the time elapsed between when the Pre-alarm / Alarm level is reached and the Pre-alarm / Alarm launches (Indicated on Display,
audible alarm and relay activation).
Set Hold mode
Prevents false alarms when charging or cleaning the chambers.
While this mode is activated, pre-alarms will not signal and alarms will signal as pre-alarms when faced with all effects (sound, relay acti-
vation and signalling).
To activate/deactivate this mode, press the
key for 3 seconds. The display will show the
indicator.
You may also activate/deactivate this function remotely using digital input 2 (DI2) if required.
This mode will remain active for a maximum of 5 hours, then will deactivate automatically.
If this mode is activated using the
key, it can only be deactivated using the same key. This is also true when activating the mode using
digital input 2.
Pre-alarm disabled
Pre-alarm enabled
Without delay*
30 s.
60 s.
1 0 s.
8
ON
ON
ON
ON
Maintenance mode
Disables gas pre-alarms and alarms for 1 hour for maintenance tasks.
While this mode is activated, no gas pre-alarm or alarm will sound.
To activate/deactivate this mode, press the
key for 6 seconds. The
indicator will flash.
Pre-alarm and Alarm levels
GASES DETECTED
DEFAULT LEVELS
SECOND SET OF LEVELS
PRE-ALARM
ALARM
PRE-ALARM
ALARM
AKO-57625-1
R-1234ze
500 ppm
1000 ppm
1000 ppm
2000 ppm
In the event of a sensor error, the detector emits 3 alert tones every 2 minutes, the
icon flashes and the Pre-
Alarm relay is activated.
Operation check (Bump test)
EN-378
and
F-GAS
international standards require verification of the correct operation of the transmitter at least once per year.
Please check what current local regulations specify for such cases.
Always ensure that you comply with current local
regulations.
We recommend using
AKO-58110
cable. To carry out this check, follow the instructions included in the kit.
Technical specifications
Power supply ............................................................................................................................................................................12 - 30 Vdc
Consumption Typical ...................................................................................................................................................................75 mA
Maximum.............................................................................................................................................................125 mA
Pre-Alarm/Alarm relay ..................................................................................................................................... SPDT 30 Vdc, 2 A, cos
j
=1
Working ambient temperature ............................................................................................................................................-30 ºC to 50 ºC
Storage ambient temperature .............................................................................................................................................-30 ºC to 60 ºC
Range of maximum moisture permitted .............................................................................................. 0 - 95 % HR (without condensation)
Protection degree .............................................................................................................................................................................. IP 68
Type of sensor ........................................................................................................................... NDIR (Non-Dispersive Infrared Technology)
Full scale ........................................................................................................................................................................................... 2000
Dimensions ........................................................................................................................................ 202 mm (W) x 82 (H) x 55.5 mm (D)
C
NC
NO
Pre-Alarm
