KROHNE DK 46 I-DK 47 I EN - Manual (Page 20)

5
SERVICE
20
DK46I - DK47I
www.krohne.com 08/2008 • 4000360001 MA DK46I-47I-R01-en
Changing the measuring cone
• Close valve upstream and downstream of the device.
• Close needle valve.
• Push protective cover upwards and remove to front.
• Turn the lock nut in the device base 1 anti-clockwise.
Devices with a top and bottom fitting made of PVDF (DK.../PV) have a tensioning screw in the
device head(Allen key 6mm).
This can be unlocked with approx. 1 full turn.
The measuring glass can be removed to the front.
• Install in the reverse order:
• Fix the measuring glass in position by tightening the lock
nut finger-tight in the device base 1 first of all.
• Use a 3mm pin to tighten the lock nut with 4x ... max. 5x 4x ... max. 5x 4x ... max. 5x 4x ... max. 5x 120° turns clockwise. 2
Before restarting the flowmeter, check leak-tightness by
suitable means.
Figure 5-1: Mainenance
CAUTION!
Residual liquid or gas may leak out!
CAUTION!
To avoid glass breakage, the measuring glass must be
inserted concentrically between the gaskets.
MA_DK46I_47I_R01_en_PRT.book Page 20 Tuesday, August 5, 2008 7:03 AM