ĐỒNG HỒ ĐO ÁP SUẤT CÓ TIẾP ĐIỂM ĐIỆN WIKA PGS25

Applications

* General machine building

* Technical and medical gases

* Renewable energies

Special Features

* Non-contact sensor (wear-free)

* Robust stainless steel case

* Scale ranges 0 ... 1.6 bar to 0 ... 400 bar

* NPN or PNP switching outputs

* Both switch points factory-programmable between 5 % and 95 % of the scale range

Specifications
Standard: Bourdon tube pressure gauges EN 837-1 
Nominal size (NS): Ø 50 mm [2"]; Ø 63 mm [2 1/2"] 
Connection location: Lower mount (radial); Centre back mount 
Window: Polycarbonate (PC)
Case Design: Safety level “S1” per EN 837-1: with blow-out device 
Case Material: Stainless steel 1.4301 (304)
Case filling: Without; Silicone oil 
Movement: Copper alloy
Type of measuring element: Bourdon tube, C-type or helical type 
Measuring element Materials (wetted): Copper alloy 
Leak tightness: Helium tested, leakage rate: < 5∙10-5 mbar l/s
Accuracy class: 2.5, 1.6 
Temperature error: On deviation from the reference conditions at the measuring system: ≤ ±0.4 % per 10 °C [≤ ±0.4 % per 18 °F] of full scale value 
Reference conditions: Ambient temperature +20 °C
Unit: bar; psi; kg/cm²; MPa; kPa →Other units on request 
Dial Scale layout: Single scale; Dual scale 
Dial Scale colour: Single scale - Black 
                               Dual scale - Black/red
Material: Aluminium 
Customer-specific version →Other scales, e.g. with red mark, circular arcs or circular sectors, on request 
Instrument pointer: Plastic, black
Process connection
Standard: EN 837; ANSI/B1.20.1; ISO 7 
Size EN 837-1: G 1/8 B, male thread; G 1/4 B, male thread; M10 x 1, male thread 
Size ANSI/B1.20.1: 1/8 NPT, male thread; 1/4 NPT, male thread 
Size ISO 7: R 1/8, male thread; R 1/4, male thread
Materials (wetted) Measuring element: Copper alloy
Output signal: See datasheet
Electrical connection: See datasheet
Operating conditions 
Medium temperature range: ≤ +60 °C [+140 °F]
Ambient temperature range: -20 ... +60 °C [-4 ... +140 °F]
Storage temperature range: -40 ... +70 °C [-40 ... +158 °F]
Pressure limitation:
      Steady: 3/4 x full scale value
      Fluctuating: 2/3 x full scale value Short time
      Full scale value
Ingress protection per IEC/EN 60529: IP65