Setting The Limit Switch For Dk32 Dk34 - KROHNE DK37 Handbook

ELECTRICAL CONNECTIONS
4
Connection three-wire reed contact
Figure 4-2: Electrical connection of reed contact limit switch
Strand colours for flowmeters with preassembled cables:
1 Silicone-insulated wire - yellow/green / FEP-insulated wire - red
2 Silicone-insulated wire - brown / FEP-insulated wire - brown
3 Silicone-insulated wire - blue / FEP-insulated wire - blue

4.3 Setting the limit switch for DK32 DK34

Set the pointers to the desired limit values as a min. contact 1 and max. contact 2 using a slip
coupling along the scale.
Figure 4-3: Limit switch settings
Adjusting the limit switch with reed contact:
• Slacken nut 3
• Set reed cartridge to the required value
• Secure with nut 3
Comment
The reed contact is actuated directly by the float magnet. The desired operating point can only be
determined in measuring mode. A reference to the scale and/or pointer cannot be established.
16 www.krohne.com
DK32 - DK34 - DK37
07/2009 - 4000287102 MA DK32-34-37-R04-en