AT1-ADPS & EDPS – Differential pressure switch for low ranges ATEX/IECEx Exd approuved

Sintesi

ATEX_WEB_COMHAS     logo_iecex     logo_comhas
• ADPS & EDPS differential pressure switch now available from Comhas as single
instrument Atex/IECEx approuved
• Ranges from 20 to 4000 Pa

ENG - Datasheet

Atex:
II 2G Ex d IIC T6 Gb
II 2D Ex tb IIIC T85°C Db, -60°C≤Tamb≤+60°C

IECEx:
Ex d IIC T6 Gb
Ex tb IIIC T85°C Db
Certificato: IECEx EPS 14.0082

Esecuzione:
IP66 (IP65 with option OPV)

CARATTERISTICHE TECNICHE

  1. Service: air and compatible gases and dry gases.
  2. Wetted materials:
    ADPS: Diaphragm material: Silicone
    Housing material: POM
    Switch body: PA 6.6
    Cover: Polystyrene
  3. Wetted materials EDPS:
    • Diaphragm material: Silicone
    • Housing material: switch body PA 6.6
    • Cover: Polystyrene
    • Materials UL94 V-0 rated
  4. Temperature limits:
    • Pressure switch ADPS/EDPS: from -20 to 85°C
    • Case: -76 to 140°F (-60 to 60°C)*
  5. Pressure limits: max operating pressure 10 kPa.
  6. Switch: type SPDT.
  7. Electrical rating: max. frequency 6 cycles/min.
  8. Electrical wiring: 3 screw type, common, normally open and normally closed.
  9. Set point adjustement: hand knob on pressure switch ADPS inside case (de-energise before opening case).
  10. Installation: diaphragm in vertical position.
  11. Housing material: aluminium (stainless steel optional).
  12. Finishing: texture epoxy coat RAL7038 (only aluminium case).
  13. Pressure connections: 1/8” NPT F brass (stainless steel optional). In presence of acetylene it is necessary to use stainless steel.
  14. Electrical connections: 2 x 1/2” NPT F standard (cable gland not included).
  15. Dimensions:     see drawing below
  16. Weight: 3,2 Kg ab. (blind).

CAUTION FOR USE ONLY WITH AIR OR COMPATIBLE GASES!
CONTACT FACTORY FOR USE WITH GASES, OTHER THAN AIR AND NITROGEN..

Important notes for installation:
• Cables must be fitted through 1/2” NPT cable gland or Atex/IECEx conduit (not supplied withinstrument).
• Make sure after cabling to close tight cover and cable gland, in order to keep IP66 rating (IP65 with option OPV, pressure reliev valve).
• Open cover only after de-energising instrument.
• Attention: check local safety rules and warnings on unit and manual for a correct use of the instrument in hazardous area.

*Operating ambient temperature is defined also according to the options and pressure instrument choosed.