The window function enables the
monitoring of a defined accept-
able range. When the level varies
between the switch-on point
(SP1) and the switch-off point
(rP1), the output is switched
(window function/NO) or not
switched (window function/NC).
The width of the window can be
set by means of the difference
between SP1 and rP1. SP1 =
upper value, rP1 = lower value.
Window function
Technical data
Page 26
Technical information / Functioning / Parameters
Operating voltag [V] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 ... 30 DC
Current rating [mA]
200
Short-circuit protection; reverse polarity protection / overload protection
Voltage drop [V] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 2,5
Current consumption [mA] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 80
Analog output . . . . . . . 4 ... 20 mA (max. 500
Ω
) / 0 ... 10 V (min. 2000
Ω
)
Accuracy of switch point [% of value of measuring range] . . . . . . . . . . ± 5
Repeatability [% of value of measuring range] . . . . . . . . . . . . . . . . . . . ± 2
Maximum speed of the change of level [mm/s]
- LK3022 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
- LK3023 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
- LK3024 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Dielectric constant medium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 2
Maximum vessel pressure [bar] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5
(when mounted with mounting accessories)
Housing material . . . . . . . . . . . . . . . . .EPDM/X (Santoprene); FPM (Viton);
Optalloy-plated brass; NBR (Buna N); PA; Pocan;
PC (Macrolon); PP (polypropylene)
Materials (wetted parts) . . . . . . . . . . . . . . . . . . . . . . . . .PP (polypropylene)
Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IP 67, III
Operating temperature [°C] . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 ... +60
Medium temperature [°C]
- Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0...+65
- Coolant emulsions, water and hydrous media*
- LK3022 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 ... +65
- LK3023 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 ... +60
- LK3024 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 ... +55
Storage temperature [°C] . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-25 ... +80
Shock resistance [g] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Vibration resistance [g] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5
EMC
EN 61000/4/2 ESD: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4/8kV
EN 61000/4/3 HF radiated: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10V/m
EN 61000/4/4 Burst: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2kV
EN 61000/4/5 Surge: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 V/1kV
EN 61000/4/6 HF conducted: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10V
t
P
SP
rP
1
0
1
0
Fno
acceptable range
Fnc
*For water and hydrous media with temperatures > 35°C install the unit into
a climatic tube (order no. E43100, E43101, E43102).
