AKO AKO-575 Series, Руководство пользователя

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5750H002 Ed.03
23
14.- Technical specifications
Power supply ......................................................................................................................................12 - 30 Vdc
Consumption
Typical..............................................................................................................................75 mA
Maximum .......................................................................................................................100 mA
Pre-Alarm/Alarm relay ..................................................................................SPDT 30 Vdc 2 A, 30 Vac 2A cos
j
=1
Working ambient temperature .......................................................................................................-30 ºC to 40 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)
Display range AKO-575744.......................................................................................................0 - 5000 x1 ppm
Other models ......................................................................................................0 - 2000 x1 ppm
Estimated working life ...............................................................................................................................7 years
Dimensions ..................................................................................................202 mm (W) x 82 (H) x 55.5 mm (D)
Sensor specifications:
Precision -30 ºC to -20 ºC 7% 8% 7% 8% 8%
See table 2
7%
Precision -20 ºC to 45 ºC 4% 5% 3% 5% 4% 3%
Precision 45 ºC to 50 ºC 7% 8% 7% 8% 8% 7%
Level of concentration
detectable (PPM)
Minimum 20 20 20 40 10 20 20
Maximum 2000 5000
Alarm levels (PPM)*
Less 500 3000
Greater 1000 4000
Alarm response time (seconds)** 60
Full scale response time (seconds) 180
Recovery time (seconds) 300
Working life (years) 7
Recommended verification frequency (years)*** 1
AK
O-57522 (R-22)
AK
O-575134A
(R-134a)
AK
O-575404A
(R-404A)
AK
O-575410A
(R-410A)
AK
O-575507A
(R-507A)
AK
O-575400
(Universal)
* Alarm levels are customisable. The values are shown by default and are acceptable for complying with all local and international regulations
covering the safety of individuals. These values can be excessive for detecting small leaks.
** The response time was indicated for an alarm level at 1000 PPM. The time depends on the alarm value set by the user.
*** It is necessary to use a calibrated gas when carrying out the verification procedure.
The precision values indicated are valid if the transmitter is reset to zero once installed in its definitive location and
with the planned working temperature.
Table 2: Accuracy of AKO-575400 transmitter
AK
O-575744
(CO
)
2
According to the configuration of parameter Gc2
ALL R-134a R-404A R-407A R-410A R-125 R-448A R-449A R-407F
Precision -30 ºC to -20 ºC 32% 6% 10% 8% 10% 10% 12% 12% 12%
Precision -20 ºC to 45 ºC 25% 4% 7% 5% 7% 7% 10% 10% 10%
Precision 45 ºC to 50 ºC 32% 6% 10% 8% 10% 10% 12% 12% 12%