KROHNE OPTISYS SLM 2100, Handbook, Page: 80 / 88

7
TECHNICAL DATA
80
OPTISYS SLM 2100
www.krohne.com 01/2017 - 4002737304 - MA OPTISYS SLM 2100 R04 en
Inputs and outputs
General All inputs and outputs are electrically isolated from the power supply.
Inputs Control inputs: Three active
control inputs, not polarity
sensitive
U
out
= 8 VDC
I
out
= -10 mA
U
low
≤
2 V
min I
typical
at 2 V = -8.7 mA
U
high
≥
4 V
max I
typical
at 4 V = -6.8 mA
Operating modes Control input 1: Rake guard
switch or external trigger
(switchable via Software)
Control input 2: Rake guard
switch or external trigger
(switchable via Software)
Control input 3: Maintenance
mode
Outputs Current outputs Two outputs (4...20 mA), galvanic
isolated from power supply,
active mode
Output data Current output A: level of fluff
Current output B: level of sludge
blanket or concentration (profile)
Operating data U
max
= 18 VDC
I = 4...20 mA
I
max
≤
22 mA
R
L
≤
550
Ω
Relays Operating modes Relay 1 and 2: Limit switch or
status output
Relay 3: Pump protection
Operating data for all relays U
ext
≤
24 VDC/250 VAC
K1 / K2
≤
1 A
K3
≤
0.3 A
Approvals and certifications
CE
The device meets the essential requirements of the EU directives. The CE marking indicates the
conformity of the product with the European Union legislation applying to the product and providing for
CE marking.
For full information of the EU directives and standards and the approved certifications, please refer to the
EU declaration on the website of the manufacturer.