5750H002 Ed.03
22
13.- Calibration of transmitter
Materials required:
AKO-58110
calibration kit
2000 PPM calibrated gas cylinder* (5000 PPM for AKO-575744)
Check whether current local regulations require a specific calibration frequency.
Always ensure that
you comply with current local regulations.
Ÿ
After initiating the calibration process, ensure that the transmitter
has been operating for at least 20
minutes
.
Ÿ
Reset the transmitter to zero following the instructions on page 21.
Ÿ
Install the
AKO-58110
calibration kit following the instructions on page 18.
Ÿ
Press the
SET
key for 10 seconds to enter the programming menu.
Ÿ
When calibrating an
AKO-575400
universal transmitter, configure parameter
Gc2
to
ALL
.
Ÿ
Access parameter
{01
. The unit will request a confirmation code (
Cod
). Use keys
Q
and
N
to enter code
63 and press
SET
.
Ÿ
Use keys
Q
and
N
to select option 1 and press
SET
. This will start the process.
Ÿ
Open the shut-off valve of the gas cylinder and wait.
Ÿ
During the process, the display will alternate between showing the gas concentration and the
CAL
message
and the illuminated
symbol. This process will last for up to 15 minutes. On completion, if the calibration
process has been successful, the display will show “
End
” and emit a long beep.
Ÿ
Close the shut-off valve of the nitrogen gas cylinder, disconnect the cylinder and remove the calibration kit
from the transmitter.
If any problems have been detected during the calibration process, the transmitter will emit three short
beeps and show one of the following error codes:
The transmitter may take a few moments to go back to showing the concentration values from before
the calibration procedure.
AKO-575400 only:
Once the verification procedure has been completed, remember to adjust
parameter
Gc2
to the value prior to the start of the calibration procedure.
The maintenance mode automatically activates for 5 minutes to prevent activation of alarms after
calibration has finished.
In this case, the maintenance mode cannot be manually deactivated.
*Use a cylinder with a type of gas that is suitable to the sensitivity of the transmitter to be calibrated. When
calibrating the
AKO-575400
universal gas transmitter, use a R134a gas cylinder.
CODE
ERROR
Et
The temperature of the sensor has experienced a variation of greater than 5 °C.
Eto
The maximum time period (15 min) has been exceeded and the reading has not stabilised.
Summary of Contents for AKO-575 Series
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Page 26: ...5750H002 Ed 03 26...
Page 27: ...5750H002 Ed 03 27...
