WIKA LSD-30 Specifications
Electronic level switch with display
Model LSD-30
Applications
■
Machine tools
■
Hydraulic aggregates
■
Tank monitoring
■
Machine building
Special features
Level measurement
WIKA data sheet LM 40.01
■
Available with single or dual NPN or PNP solid state
user-programmable switches asily-readable, robust
display
■
High visibility, rugged 14-segment red LED display
■
Independent rotation between the M12x1 electrical
connection and the display to optimize installation position
■
User-friendly, intuitive 3-key operation
■
Programming menu meets VDMA Standards for user
friendly navigation
Description
Award-winning in design and functionality
The successful design and the excellent functionality of
the WIKA switch family were already conrmed by winning
the “iF product design award 2009” for the pressure switch
model PSD-30.
The robust LED display has been designed using 0.37"
(9 mm) high characters (the largest possible) and with a
slight incline in order to make reading the level as easy as
possible from a long way o. A 14-segment display has
been used, so alphanumeric messages are much easier
to understand.
The 3-key operation makes simple, intuitive menu navigation
possible, with no need for additional assistance. The menu
navigation is designed in accordance with the latest VDMA
standard. The VDMA standard for uid sensors (24574-4,
part 4 - level switches) has the aim of considerably simplifying the use of level switches by standardising menu navigation and display.
Electronic level switch with display
Model LSD-30
The control keys have been designed as large as possible
and are arranged ergonomically to ensure fast and easy
adjustments. Operation without any additional assistance is
made easier through the tactile feedback.
Customised installation
The installation of the model LSD-30 level switch can be
exibly adapted to the individual mounting situation. Due to
the almost unlimited rotation of the display and case by more
than 300°, the display can be adjusted independently of the
electrical connection. The display can thus always be aligned
to face the operator, and the M12 x 1 connection positioned
to suit the desired cable routing.
High quality
During development of the WIKA switch family a high
value was placed on a robust design and the selection
of appropriate materials suited for machine-building
applications. For this reason the case and the threaded
connection of the electrical connector are made from
stainless steel. Overwinding or tearing o the connector
is therefore virtually impossible.
Data sheets showing similar products:
Electronic pressure switch with display; model PSD-30; see data sheet PE 81.67
Electronic temperature switch with display; model TSD-30; see data sheet TE 67.03
Page 1 of 5WIKA data sheet LM 40.01 ∙ 01/2016
Measuring ranges
Display
for process connection G ¾ A
Sensor length F (mm) 250 370 410 520 730
Measuring range (mm) 189 309 349 459 669
Measuring range (inch) 7.44 12.17 13.74 18.07 26.34
for process connection ¾ NPT
Sensor length F (mm) 250 370 410 520 730
Measuring range (mm) 205 325 365 475 684
Measuring range (inch) 8.07 12.80 14.37 18.70 26.93
Insertion lengths see “Dimensions in mm”
Specic gravity range of the medium
≥ 0.7 g/cm
3
Output signal
Switching output Analogue signal
SP1 SP2
PNP - 4 ... 20 mA (3-wire)
PNP - DC 0 ... 10 V (3-wire)
PNP PNP PNP PNP 4 ... 20 mA (3-wire)
PNP PNP DC 0 ... 10 V (3-wire)
Optionally also available with an NPN instead of a PNP
switching output.
Switching thresholds
Switch point 1 and 2 are both individually adjustable
14-segment LED, red, 4-digit, character size 0.37" (9 mm)
Display can be turned electronically through 180°
Update
200 ms
Voltage supply
Power supply U
DC 15 ... 35 V
Current consumption
Switching outputs with
■
Analog signal 4 ... 20 mA: 70 mA
■
Analog signal DC 0 ... 10 V: 45 mA
■
without analog signal: 45 mA
Total current consumption
max. 600 mA (incl. switching current)
+
Measuring element
Resistance measuring chain with reed switches and float
Resolution
< 0.24" (6 mm)
Response time
< 700 ms
Switching functions
Normally open, normally closed, window, hysteresis
Freely adjustable
Switching voltage
Power supply - 1 V
Switching current
max. 250 mA per switching output
Adjustment accuracy
0.1" (2.5 mm) steps
Response time
< 200 ms
Lettering (display and analogue signal)
Zero point: max. +25 % of span
Full scale: max. -25 % of span
Oset adjustment (display)
max. +1,500 mm
Load
■
Analogue signal 4 ... 20 mA: ≤ 500 Ω
■
Analogue signal DC 0 ... 10 V: > 10 kΩ
Maximum operating pressure
43.5 psi (3 bar)
Media compatibility
Test following ISO 7620, section 6, table 1
Medium Standard
Mineral oil HLP per DIN 51524
Aqueous solution HFC per VDMA 24317
Organic ester HFD-U per VDMA 24317
Triglyceride (rape oil) HETG per VDMA 24568
Synthetic ester HEES per VDMA 24568
Polyglycols HEPG per VDMA 24568
Accuracy data
Switching output
1 % of span
Display
1 % of span ±1 digit
Analogue signal
≤ ±0.5 % of span
WIKA data sheet LM 40.01 ∙ 01/2016Page 2 of 5
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