ĐỒNG HỒ ĐO CHÊNH ÁP CÓ TIẾP ĐIỂM ĐIỆN WIKA DPGS43HP

Applications
* Control and regulation of processes
* Monitoring of plants and switching of electric circuits
* For measuring locations with a high differential pressure overload and/or high working pressures (static pressures), also in aggressive environments
* Easy-to-read, analogue on-site display needing no external power
* Pump monitoring and control, filter monitoring, level measurement on closed vessels
Special Features
* Differential pressure measuring ranges from 0 … 60 mbar
* High working pressure (static pressure) and high overload safety, selectable up to 40, 100, 250 or 400 bar
* Measuring cell liquid dampening against rapid pressure changes
* Instruments with inductive contacts for use in hazardous areas
* Instruments with switch contact for PLC applications
Specifications
Standard:
      EN 837-3: Diaphragm and capsule pressure gauges
      DIN 16003: Pressure measuring instruments for differential pressure
      DIN 16085: Pressure gauges with electrical limit contact devices 
Further version:
      Oil- and grease-free
      Oil- and grease-free for oxygen
      Silicone-free
      Per NACE 1) MR0175 / ISO 15156, use in H₂S-containing environments in oil and gas production
      Per NACE 1) MR0103 / ISO 17945, metals resistant to hydrogen sulphide stress cracking
      With pre-volume deflagration flame arrester 2) for mounting to zone 0 (EPL Ga); model 910.21, see data sheet AC 91.02 
Nominal size (NS): Ø 100 mm [4"], Ø 160 mm [6"]
Window: Laminated safety glass; Polycarbonate
Connection location: Lower mount (radial); Other connection locations on request Case Material: Stainless steel 1.4404 (316L); Stainless steel 1.4571 (316Ti); Stainless steel 1.4301 (304)
Case filling: Without, Silicone oil
Movement: Stainless steel
Measuring element
Type of measuring element: 2 diaphragm elements with transmission fluid
Material Diaphragm element:
      Span ≤ 0.25 bar [3.63 psi]: Stainless steel 316L; Hastelloy C276; Monel 2.4375
      Span > 0.25 bar [3.63 psi]: Stainless steel 316L / NiCr alloy (Inconel); Hastelloy C276; Monel 2.4375
Accuracy class: 1.6, 2.5, 1.0 (application test required)
Zero point setting:
      Instruments with case filling: External setting
      Instruments without case filling: Without 
Unit: mbar; bar; psi; kPa; MPa; mmH2O; inH2O; kg/cm2; oz/cm2; Other units on request
Overload safety and max. operating pressure (static pressure):
      Pressure ratings PN 40 ... PN 400: Max. 40, 100, 250 or 400 bar [580, 1,450, 3,625 or 5,800 psi] On one, both and alternatingly on the ⊕ and ⊖ sides
      Pressure rating PN 650: Max. 400 bar [5,800 psi] on one side and alternatingly on the ⊕ and ⊖ sides Max. 650 bar [9,425 psi] on both sides on the ⊕ and ⊖ sides
Dial Scale layout: Single scale; Dual scale
Dial Scale colour: Single scale - Black; Dual scale - Black/red
Dial Material: Aluminium
Instrument pointer: Aluminium, black
Set pointer: Aluminium, red
Process connection
Standard:
      EN 837-1: 2 x G 1/2, female thread; 2 x G 1/2 B, male thread
      ANSI/B1.20.1: 2 x 1/2 NPT, male thread
      EN 61518: Flange with differential pressure connection
Restrictor: Without; ∅ 0.6 mm [0.024"], stainless steel; ∅ 0.3 mm [0.012"], stainless steel
Material (wetted):
      Measuring flanges with process connection:  Stainless steel 316L; Hastelloy C276; Monel 2.4360
      Seal: FPM/FKM; Further materials on request
      Venting of the media chambers; Stainless steel 316L; Hastelloy C276; Monel 2.4360 
      Diaphragm element: Stainless steel 316L; Hastelloy C276; Monel 2.4375
Material (non-wetted):
      Flange connecting screws: PN 40 ... PN 100 - Stainless steel; PN 250 ... PN 650 - Steel, corrosion-protected
      Measuring chamber: PN 40 ... PN 100 - Stainless steel, stainless steel / Monel, stainless steel / Hastelloy C276; PN 250 ... PN 650 - Stainless steel / chromium steel, stainless steel / chromium steel / Monel, stainless steel / chromium steel / Hastelloy C276
Case:  Stainless steel
Movement, bayonet bezel: Stainless steel 
Dial: Aluminium, white, black lettering

Window: Laminated safety glass; Polycarbonate
Output signal: See datasheet
Electrical connection: See datasheet
Medium temperature range:
      -20 ... 100 °C [-4 ... +212 °F]
      +200 °C [+392 °F] maximum
Ambient temperature range: -20 ... +60 °C [-4 ... +140 °F]
Storage temperature range: -20 ... +60 °C [-4 ... 140 °F]
Pressure limitation: 
      Steady: Full scale value
      Fluctuating: 0.9 x full scale value
Ingress protection per IEC/EN 60529: IP54;  IP65; IP66 (application test required)