KROHNE H250 M40 EN - Manual (Page 55)

SERVICE
7
55
H250 M40
www.krohne.com 11/2012 - 4000640702 MA H250 M40 R02 en
7.2.2 Retrofitting float damping
• Take the upper snap ring 1 out of the measuring unit.
• Take the upper float stop 2 and float 5 out of the measuring unit.
• Fasten the snap ring 3 into the lower slot of the float's guide rod.
• Slide ceramic sleeve 4 on to the float's guide rod and attach it to the top slot using the span
ring 3.
• Insert float into the lower float guide in the measuring unit.
• Retrofit the supplied damping cylinder with the integrated float stop 2 into the measuring
unit.
• Insert upper snap ring 1.
7.2.3 Retrofitting limit switch
• Remove ESK4 add-on module (if available).
• Merge contact pointer 2 in the middle.
• Loosen the locking screw 1 on the contact pointer.
• Insert the contact module into slot 3 of the bracket until the semi-circle 1 on the contact
board surrounds the pointer cylinder.
The contact module connecting terminals feature a pluggable design and can be removed in
order to connect the cables.
1 Snap ring
2 Float catcher
3 Spring washer
4 Ceramic sleeve
5 Float
WARNING!
Do not damage the indicating element!
MA_H250_M40_R02_en_640702_PRT.book Page 55 Wednesday, November 28, 2012 12:23 PM