ĐỒNG HỒ ĐO CHÊNH ÁP CÓ TIẾP ĐIỂM ĐIỆN WIKA DPGS43.160

Applications
* Control and regulation of processes
* Monitoring of plants and switching of circuits
* For measuring points with increased differential overpressure
* Filter and pump monitoring
* Level measurement on closed vessels
Special Features
* Differential pressure measuring ranges from 0 ... 16 mbar
* High working pressure (static pressure) and high overload safety up to 40 bar
* Also available with liquid-filled case for high dynamic pressure loads or vibrations
* 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
Other versions:
      Oil- and grease-free
      Oil- and grease-free for oxygen 
      For hydrogen
      Silicone-free
      With pre-volume deflagration flame arrester 1) 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,  Lateral connection locations (right, left, front, rear) on request
Case Design: 
      Safety level “S1” per EN 837-1: with blow-out device
      Safety level “S3” per EN 837-1: with solid baffle wall and blow-out back
Case Material: Stainless steel 1.4301 (304 SS),  Stainless steel 1.4571 (316Ti)
Case filling: Without, Silicone oil, Instruments with case filling can be vented and resealed for internal pressure equalisation.
Venting of the media chambers:
      Span ≤ 0.25 bar [100 inH2O]: With venting
      Span ≥ 0.4 bar [160 inH2O]: Without, With venting
Movement: Stainless steel
Type of measuring element: Diaphragm element 
Material of measuring element: 
      Span ≤ 0.25 bar [100 inH2O] Stainless steel 1.4571 (316Ti)
      Span ≥ 0.4 bar [160 inH2O] NiCr alloy (Inconel)
Accuracy class: 1.6, 1.0, 2.5
Zero point setting: Without, External setting
Influence of static pressure: 
      Span ≤ 0.25 bar [100 inH2O]: ±0.3 %/1 bar [14.5 psi]
      Span ≥ 0.4 bar [160 inH2O] ±0.04: %/1 bar [14.5 psi]
Temperature error: On deviation from the reference conditions at the measuring system: ≤ ±0.5 % per 10 °C [≤ ±0.5 % per 18 °F] of full scale value
Switch hysteresis: Depending on the type of contact used, see page 6
Reference conditions: Ambient temperature +20 °C [+68 °F]
Unit: mbar, bar, psi, kPa, MPa, mmH2O, inH2O, kg/cm2, Other units on request
Max. allowable pressure per Pressure Equipment Directive 2014/68/EU: Corresponds to the upper full scale value. Any permanent operation above the maximum operating pressure is not permissible
Overload safety and max. operating pressure (static pressure): The possibility of selection depends on the span. → See separate table on page 5
Dial Scale layout: Single scale, Dual scale
Dial Scale colour: Single scale - Black
                               Dual scale - Black/red
Dial Material: Aluminium 
Set pointer →See type of contact, from page 6
Overload safety and max. operating pressure (static pressure): See datasheet
Process connection
Standard: EN 837-1, ANSI/B1.20.1 → For valve manifolds for an instrument hook-up, see “Accessories and spare parts”
Size EN 837-1: 2 x G 1/4, female thread; 2 x G 1/2 B, male thread 
Size ANSI/B1.20.1: 2 x 1/4 NPT, female thread; 2 x 1/2 NPT, male thread 
Restrictor: Without; ∅ 0.6 mm [0.024"], stainless steel; ∅ 0.3 mm [0.012"], stainless steel
Material (wetted)
Media chambers with process connection: Stainless steel 1.4571 (316Ti)
Venting of the media chambers, if available: Stainless steel 1.4571 (316Ti)
Diaphragm element: 
      Span ≤ 0.25 bar [100 inH2O]: Stainless steel 1.4571 (316Ti)
      Span ≥ 0.4 bar [160 inH2O]: NiCr alloy (Inconel)
Bellows: Stainless steel 1.4571 (316Ti)
Output signal: See datasheet
Output signal: magnetic snap-action contact, model 821 (See datasheet)
Output signal: Inductive contact, model 831 (See datasheet)
Output signal: electronic contact, model 830 E (See datasheet)
Output signal: Reed switch, model 851 (See datasheet)
Electrical connection (See datasheet)
Operating conditions (See datasheet)