KROHNE DK 32-DK 34-DK 37 EN - Manual (Page 16)

4
ELECTRICAL CONNECTIONS
16
DK32 - DK34 - DK37
www.krohne.com 06/2014 - 4000287103 MA DK32-34-37-R05-en
4.3 Setting the limit switch
Set the pointers to the desired limit values as a min. contact 1 and max. contact 2 using a slip
coupling along the scale.
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.
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
Figure 4-3: Limit switch settings
MA_DK32_34_37_R05_en_287103_PRT.book Page 16 Friday, June 6, 2014 11:42 AM