ĐỒNG HỒ ĐO ÁP SUẤT WIKA 333.30

Standard:

      EN 837-1

      See Technical Information IN 00.05 for information on “Selection, installation, handling and operation of pressure gauges”.

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

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)

Process connection:

      G ½ B

      Others on request

Permissible temperature

Medium:

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

      +100 °C [212 °F] maximum with filled instruments (model 333.30)

Ambient:

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

      -20 … +60 °C [-4 ... +140 °F] with instruments with glycerine filling (model 333.30)

Temperature effect: When the temperature at the measuring system deviates from the reference  Temperature +20 °C [+68 °F]: ≤ ±0.4 %/10 °C [≤ ±0.4 %/18 °F] 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 “S3” per EN 837: With solid baffle wall (Solidfront) and blow-out back

Ring:

      Bayonet ring, stainless steel

      Triangular profile ring, polished stainless steel, with clamp

Movement: Stainless steel

Dial: Aluminium, white, black lettering

Instrument pointer: Aluminium, black (knife edge pointer)

Set pointer:

      Without

      Aluminium, red

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