KROHNE OPTISYS SLM 2100 EN - Manual (Page 35)

ELECTRICAL CONNECTIONS
4
35
OPTISYS SLM 2100
www.krohne.com 03/2014 - 4002737302 - MA OPTISYS SLM 2100 R02 en
4.11 Electrical connection of the external pump
An external pump can be controlled by connecting K3 to a motor protection.
The electrical specification for pump control connector K3 is specified as follows:
• U
ext
≤ 24 VDC / 230 VAC
• I ≤ 0.3 A
4.12 Protection category
IP 68 (sensor), IP 54 (electronic compartment), IP 44 (cable drum compartment).
DANGER!
Never install or operate the device in potentially explosive areas, it might cause an explosion that
can result in fatal injuries.
DANGER!
Never connect an external water pump directly to the OPTISYS SLM 2100 connector K3, the
output connector is only specified as a control output for a motor protection.
Figure 4-9: Connection diagram pump (K3)
1 External voltage
2 PTC resistance (I
max
= 0.3 A)
DANGER!
Do not install the sludge blanket meter in hazardous areas, it can ignite explosive gases!
.book Page 35 Wednesday, April 30, 2014 1:39 PM