Technical Information / Functioning / Parameters; Adjustable Parameters - IFM Electronic LK7 Bedienungsanleitung

Technical information / Functioning / Parameters

Adjustable
parameters
Switch-on point: Upper limit value at which the output changes its switching status.
• indicated in cm or inch
setting range
LK0022 / LK7022
LK0023 / LK7023
LK0024 / LK7024
Switch-off point: Lower limit value at which the output changes its switching status.
• indicated in cm or inch
setting range
LK0022 / LK7022
LK0023 / LK7023
LK0024 / LK7024
Dependence between rPx and SPx:
1. rPx is always lower than SPx. The unit only accepts values which are lower than SPx..
2. If the difference between rPx and SPx is small (approx. 3 x steps), increasing the switch-on
point also increases the switch-off point (the difference SPx - rPx remains constant).
3. If the difference between rPx and SPx is great, rPx remains at the set value even if SPx is
increased.
4. If SPx is set to the minimum value and then increased, rPx is also set to the minimum
value and increased proportionally.
Switching functions of the transistor outputs:
4 settings can be selected: Hno = hysteresis / normally open
Offset (basic value for display and measured value):
The area between the bottom of the tank and lower face of the measuring probe can be ente-
red as offset value. Thus the display and switch points refer to the real tank level.
setting range
LK0022 / LK7022
LK0023 / LK7023
LK0024 / LK7024
Display unit:
2 settings can be selected: EU = display in cm (Europe)
Select the display unit before setting the switch points (SPx, rPx).
This avoids rounding errors generated internally during the conversion of the units and enables
exact setting of the values.
Min-Max memory:
• HI: Displays the highest measured level
• LO: Displays the lowest measured level
Erase the memory
- Press the "Mode/Enter" button until "HI" or "LO" is displayed.
- Press the"Set" button and keep it pressed until "- - -" is displayed.
- Then press the "Mode/Enter" button briefly.
Page 22
Programming menu
cm
2.5 ... 20.5
4.0 ... 41.5
6.0 ... 61.0
cm
2.0 ... 20.0
3.5 ... 41.0
5.0 ... 60.0
Hnc = hysteresis / normally closed
Fno = window function / normally open
Fnc = window function / normally closed
cm
0 ... 78
0 ... 57
0 ... 186
inc = display in inch
→
fold-out page
inch
1.0 ... 8.0
1.4 ... 16.2
2.5 ... 24.0
With OFS > 0 the OFS value is added to these values.
inch
0.8 ... 7.8
1.2 ... 16.0
2.0 ... 23.5
With OFS > 0 the OFS value is added to these values.
inch
0 ... 30.6
0 ... 22.4
0 ... 74.5
in steps of
0.5cm / 0.2inch
0.5cm / 0.2inch
1.0cm / 0.5inch
in steps of
0.5cm / 0.2inch
0.5cm / 0.2inch
1.0cm / 0.5inch
in steps of
0.5cm / 0.2inch
0.5cm / 0.2inch
1.0cm / 0.5inch