Nominal Case Size
    50 mm (2")

   Accuracy Class
    2.5

   Pressure Ranges
    0-18 bar, 0-80 bar or 0-250 bar

   Pressure Limitations
    Steady pressure:     75% of full scale value
    Cyclic pressure:     30-65% of full scale value
    Temporary:           full scale value;

                         with pressure range 0/250 bar overpressure
                         withstanding up to 300 bar

   Temperature Limitations
    Ambient temperature: -20 / +60 °C (-4 / +140 °F)
    Medium temperature: max. +60 °C (+140 °F)

   Standard Configuration
    Connection
    316 stainless steel (1.4571) bottom (standard) or center back (rm),
    G ¼ B (¼" BSP) (standard) or optional ¼" NPT

   Bourdon Tube
    316 stainless steel (1.4571), argon arc welded,
    pressure ranges 0/18 bar and 0/80 bar in C-form,
    pressure range 0/250 bar helical

   Dial
    Aluminum alloy, black figures, white background

   Pointer
    Aluminum alloy black

   Case
    304 stainless steel (1.4301)

   Window
    Polycarbonate, clipped-in, turnable for limit adjustment

   Safety Features
   Bottom connection:
    Pressure relief with blow-out back part in the back of the case,
    (qualification approval acc. to DIN EN 562)
   Center back connection:
    Blow-out Ø 13 mm at the top of the case, blow-out plug to cut off for
    compensation of internal pressure

    Version free of grease and oil; adjusted with dry air; helium leak detectioned

   Accessories
    A special output unit is required for inductive limit switches.

    For an intrinsically safe circuit we recommend model KFA6-SR2-Ex1, odering number: Z-129004.

   Please specify:

   Model and nom case size: RChE 50

   Ordering number for materialof the wetted parts: – 3

   Code letters for case configuration: see overleaf;
                                         bottom connection (without
                                         additional code letter; = standard)
                         

                                         center back connection = rm

   Pressure range:0-18 bar, 0-80 bar or 0-250 bar

   Process connection: G ¼ B (¼" BSP; = standard)
                          or ¼" NPT, others see above

   Switching function: I1 (breaking at falling pressure)

   Special options: (see above)

   Examples for Ordering Information:
    • RChE 50-3, 0-18 bar, G ¼ B, I1
    • Item 1: RChE 50-3, 250 bar, ¼" NPT, I1
      Item 2: Z-129004 (output unit KFA6-SR2-Ex1.W)

   Dimensional Drawings, Dimensions and Weight