ĐỒNG HỒ ĐO ÁP SUẤT WIKA 333.50

Standard: EN 837-1

Nominal size (NS): Ø 160 mm [6"]

Accuracy class: 

      0.6

      0.25 (selectable for scale ranges ≤ 400 bar)

      Grade 3A per ASME B40.100 (selectable for scale ranges ≤ 400 bar)

Scale ranges: 0 ... 0.6 bar to 0 ... 1,600 bar [0 ... 10 psi to 0 ... 20,000 psi] other units (e.g. psi, kPa) available or all other equivalent vacuum or combined pressure and vacuum ranges

Scale: 

      Single scale

      Mirror band scale

Zero point setting:

      Without

      From outside through adjustable dial

Pressure limitation:

      Steady: Full scale value

      Fluctuating: 0.9 x full scale value

      Short time: 1.3 x full scale value

Connection location:

      Lower mount (radial)

      Lower back mount

Process connection: G 1/2 B others on request

Permissible temperature

Medium:

      +200 °C [+392 °F] maximum with unfilled instruments

      +100 °C [+212 °F] maximum with filled instruments (model 333.50)

Ambient:

      -40 … +60 °C [-40 ... +140 °F] with unfilled instruments

      -20 … +60 °C [-4 ... +140 °F with instruments with glycerine filling (model 333.50)

Temperature effect: When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.4 %/10 K of full scale value

Case filling: 

      Without

      Glycerine

Wetted materials

Process connection: Stainless steel 316L

Pressure element: Stainless steel 316L

      < 100 bar: Copper alloy, C-type

      ≥ 100 bar: Stainless steel 316L, helical type

      ≥ 1,000 bar: Ni-Fe alloy, helical type

Non-wetted materials:

Case: Stainless steel

      Safety level “S1” per EN 837: With blow-out device in case back

      Scale ranges ≤0 ... 10 bar with compensating valve to vent case

Ring:

      Bayonet ring, stainless steel

      Triangular profile ring, polished stainless steel, with clamp

Movement: Stainless steel

Dial: Aluminium, white, black lettering

Pointer: Knife edge pointer, aluminium, black

Window: Laminated safety glass

Ingress protection per IEC/EN 60529: IP65

Adjustment medium

      Liquid for scale ranges > 25 bar; gas for scale ranges ≤ 25 bar

      Gas for all scale ranges