ATEX II 2G/3G control unit, continuous Purging

• Заказные данные
  (2)
• Информационные материалы

  Информационные материалы

  BARTEC Ex p control unit, "continuous purging"

  The APEX 2003.SI control unit controls and monitors the prepurging and operating phases of gas analyzers with containment systems in hazardous zones 1 and 2.

  The control unit redundantly monitors the continuous flow of protective gas through the connected analyzer and thereby dilutes any escaping sample gas to below the lower explosive limit (max. purging gas pressure 25 hPa).

  At the same time, a higher pressure is maintained inside the Ex-p enclosure than in the surrounding atmosphere. If the flow of purging gas or the internal pressure falls below a determined minimum value, the supply voltage to the equipment in the flameproof enclosure is shut down.

  4 programmable relay inputs (8 relay contacts) are available to separate the data lines.

  Чертеж

  

  BARTEC control unit, dimensions in mm

  Схема подключения

  

  BARTEC control unit, continuous purging, gas connection diagram

  

  BARTEC control unit, continuous purging, electric connection diagram

  Технические данные

  Guidelines	EU EMC Guideline 89/336/EEC EC low voltage, RL 73/23/EEC ATEX directive 94/9/EC
  Design	Explosion-protected enclosure (Ex e) with viewing window in the cover
  Degree of protection	IP65
  Terminals	2.5 mm, finely stranded
  Pressure sensors	MIN A = 0 … 25 hPa MIN B = 0 … 25 hPa MAX = 0 … 25 hPa MAX 1 = 0 … 25 hPa DIFF A = 0 … 25 hPa DIFF B = 0 … 25 hPa
  Prepurging time	0 … 99 min; 5 sec dropout delayed
  Weight	10.6 kg
  Electrical data
  Supply voltage	230 V AC (115 V AC) ± 10 %, 48 … 62 Hz
  Power consumption	21 W /230 V
  Relay contacts	K2/3; max. 250 V, 5 A with cos ϕ = 1, K4/K5; supply voltage or floating, max. 250 V, 5 A with cos ϕ = 1
  Communication (for service only)	RS 485 interface
  Temperature switching value (option)	0 … +40 °C
  Explosion protection
  Marking	II 2(1)G Ex de ib [ia Ga px] IIC T4 Gb
  Design examination certificate	DMT 99 ATEX E 082
  Ambient temperature	-20 … +40 °C