ASL453/24 Công tắc lưu lượng khí điện tử Fema, Đại lý Fema Viet Nam

ASL453/24 Công tắc lưu lượng khí điện tử Fema, Đại lý Fema Viet Nam ĐẶC ĐIỂM KỸ THUẬT: Đầu ra SPDT: 230V 8A Nguồn điện: 24V Nhiệt độ: -20…+100°C Độ chính xác: <2%
Nhà sản xuất: FOTOELEKTRIK-PAULY
0

ASL453/24 Công tắc lưu lượng khí điện tử Fema, Đại lý Fema Viet Nam

Model:  ASL453/24

Hãng: Fema

ĐẶC ĐIỂM KỸ THUẬT:

Đầu ra SPDT:  230V 8A
Nguồn điện:  24V
Nhiệt độ: -20…+100°C
Độ chính xác: <2%
 
 
Hotline: 0933.911.903
Liên hệ với chúng tôi để có thêm thông tin và giá tốt nhất!
 

ASL453/24

Electronical air flow switch for air (SLF + ASL)
Evaluation Units for SLF3 sensor
Evaluation Unit, output SPDT 230V 8A, Power supply 24V

SWL 
Air flow monitoring
 
The SLF... sensor can be used in combination with an ASL… evaluation device to monitor the flow in the air (e.g. in air-conditioning systems). 
The switching point is adjustable. While the fan starts up the switch-on bypass is active. The bypass duration (2 – 60 s) is adjustable.
 
Function 
The air flow monitors work according to the calorimetric principle. A thermistor is heated up. As heat is withdrawn by the flowing air, the thermistor resistance alters. The change in resistance is evaluated. As the resistance also depends on the temperature of the medium, the difference must be determined by a second thermistor. The difference is compensated and in this way the switching point is kept stable. Suspended materials adhering to the sensor can have an insulating effect and so affect the measurement result and hence the defined switching point. Therefore it is advisable to remove any dirt during routine maintenance operations. 
 
Switch-on bypass 
While the plant is being started up (still no airflow present), the output contact is activated and the flow condition signaled. The time for the switch-on bypass is adjustable from 2-60 s. The start-up or switch-on bypass starts when the unit is switched on. If an external start button (normally closed contact) is connected (to the Z-Z terminals), the start-up bypass begins when the (locking) button is pressed.

 

Type                                         Supply voltage

SLF3 Sensor, 35 mm                
SLF15 Sensor, 150 mm            
ASL453 Evaluation unit             230 V AC
ASL453/24 Evaluation unit        24 V AC/DC

Technical data of sensor:
 
General
Fast-reacting air flow sensor with movable flange for installation in air ducts. With
temperature compensation, suitable for media with rapid temperature changes.
Medium temperature -20…+100°C
Compensation behavior (Reaction speed on change in medium temperature) fast, approx. 0.3 s
Installation depth 35 resp. 150 mm
Sensor tube diameter 10 mm
Sensor tube material nickel-plated brass
Measuring element
Insensitive to moisture (can be cleaned inwater). Sensitive to mechanical deformation (care must be taken when cleaning with hard objects).
Protection class IP67
Electrical connection
Terminal strip accessible after removal of cover. 3-wire connection to evaluation unit
Mounting conditions
The sensor tip should be placed in the midst of the pipe and must be bathed completely from the medium. Please provide a straight pipe: 5x the pipe diameter before and after the sensor device.
 
Technical data of evaluation unit:
 
Power supply  230 VAC or 24 VAC/DC
(see Product Summary)
Power consumption approx. 3 VA
Contact load
Relay, single pole 8 A, max. 250 VAC
Ambient temperature 0 – 60°C
Flow rate
Adjustable from 0.1 to 20 m/s for gaseous media
Response time 1…5 s
Temperatures > 80 °C, degree of contamination and flow velocity will reduce the response time.
Repetition accuracy
<2%, relative to the flow rate directly on the sensor.
Switching hysteresis approx. 2% of overall range
Max. cable length between sensor and evaluation unit
100 m, for shielded cable 1.5 mm2
Sensor protection
In case of breakage or interruption of the
sensor wires, the unit switches off or an
interruption of flow is signaled.
Type of construction Standard housing N 45
Weight approx. 0.35 kg

 

SLF3

Electronical air flow switch for air (SLF + ASL) Price -

ASL453

Evaluation Units for SLF3 sensor Price -

ASL453/24

Evaluation Units for SLF3 sensor Price -

SWF62

Electronical flow switch for liquid and air (SWF + ASW) Price -

SWF62L

Electronical flow switch for liquid and air (SWF + ASW) Price -

ASW454

Evaluation Units for SWF62 sensors Price -

ASW454/24

Evaluation Units for SWF62 sensors Price -
 
CÁC MODEL CÙNG DÒNG:
 
 BZE7-2RN-PG FEMA
 Limit Switch BZE6-2RQ FEMA
 Limit Switch 18CX10 FEMA
Fema  Txb 490 FEMA
 FEMA DCM 3 Potentiometer 200SF1D502 FEMA
 FEMA pressure switch DCM10 FEMA
FEMA SN40-280 FEMA
Fema  vcm 4156 FEMA
FEMA  pressure switch DWR 6 FEMA
 FEMA asl453/24 ASL 453/24 FEMA
VCMV095  Fema Pressure Switch FEMA
FEMA  DCM 16 FEMA
 DCM3 0,2-2,5 bar FEMA
FEMA/ DNS 025-201 FEMA
FEMA/ DNS 025-201 FEMA
FEMA  DDCM16 FEMA
Fema  TXB 490 FEMA
 FEMA VCM 101, 0246627011757 0546 FEMA
 FEMA DWR3-206 FEMA
DWR06 FEMA
DWR06-203 FEMA
DWR06-206 FEMA
DWR06-363 + ZF1970 (0.2BAR FALLING) FEMA