Products
LL8023

Continuous level sensor with leakage monitoring

LL8023

LL0472B-B-00KVPKG/US

Continuous level sensor with leakage monitoring

LL8023

LL0472B-B-00KVPKG/US

Reliable level detection in containers and tanks
For use in water, oils and coolants
Easy adjustment to the medium to be measured
Clearly visible 4-digit LED display
Two programmable switching outputs for leakage detection

phase-out article

For 8-pole sockets the core colours are not standardised. Please note the wiring of the sensor and the sockets (see data sheet).

Product characteristics

Number of inputs and outputs	Number of digital outputs: 4
Probe length L [mm]	472

Application

Special feature	Gold-plated contacts
Media	hydrous coolants; oils; water; media similar to water
Dielectric constant of the medium	> 2
Cannot be used for	extremely conductive media; adhering media; granulates; bulk material; acids; alkali
Tank pressure [bar]	0.5; (when mounting with mounting accessories: E43001 - E43007, E43019)

Coolants

Medium temperature [°C]	0...35; (LL8023 + E43101: 0...60; For water and hydrous media with temperatures > 35 °C install the unit into a climatic tube.)

Oil

Medium temperature [°C]	0...70
Medium temperature short time [°C]	0...90

Water

Medium temperature [°C]	0...35; (LL8023 + E43101: 0...60; For water and hydrous media with temperatures > 35 °C install the unit into a climatic tube.)

Electrical data

Operating voltage [V]	18...30 DC; ("supply class 2" to cULus)
Current consumption [mA]	< 60
Protection class	III
Reverse polarity protection	yes
Power-on delay time [s]	3
Measuring principle	capacitive

Inputs / outputs

Number of inputs and outputs	Number of digital outputs: 4

Outputs

Total number of outputs	4
Output signal	switching signal
Electrical design	PNP
Number of digital outputs	4
Output function	normally open / normally closed; (parameterisable)
Max. voltage drop switching output DC [V]	2.5
Permanent current rating of switching output DC [mA]	200
Short-circuit protection	yes
Type of short-circuit protection	thermal, pulsed
Overload protection	yes

Measuring/setting range

Probe length L [mm]	472
Active range A [mm]	390
Inactive range I1 / I2 [mm]	53 / 30

Setting range

Set point SP [mm]	40...390
Reset point rP [mm]	35...385
In steps of [mm]	5
Hysteresis [mm]	5
Overflow switch point OP [mm]	139 - 163 - 188 - 212 - 236 - 261 - 285 - 310 - 334 - 358 - 383 -407
Hysteresis, OP [mm]	3

Temperature monitoring

Display range [°C]	-10...100

Accuracy / deviations

Measuring error [% of the final value]	± 5
Repeatability	± 2

Software / programming

Parameter setting options	hysteresis / window; normally open / normally closed; SP/rP position; OP position; adjustment OP; medium selection; offset setting; Display unit; settings for leakage monitoring

Operating conditions

Ambient temperature [°C]	0...60
Storage temperature [°C]	-25...80
Protection	IP 67

Tests / approvals

EMC

EN 61000-4-2 ESD	4 kV CD / 8 kV AD
EN 61000-4-3 HF radiated	10 V/m
EN 61000-4-4 Burst	2 kV
EN 61000-4-6 HF conducted	10 V

Shock resistance

DIN EN 60068-2-29

15 g (11 ms)

Vibration resistance

DIN EN 60068-2-6

5 g (10...2000 Hz)

MTTF [years]

202

Mechanical data

Weight [g]	424
Dimensions [mm]	Ø 16
Materials	stainless steel (304/1.4301); FKM; NBR; PBT; PC; PEI; PP; TPE-V
Materials (wetted parts)	PP

Displays / operating elements

Display

display unit / status	4 x LED, green
switching status	4 x LED, yellow
level	alphanumeric display, 4-digit
parameter setting	alphanumeric display, 4-digit

Remarks

Pack quantity	1 pcs.

Electrical connection

Connection	Connector: 1 x M12; coding: A; Contacts: gold-plated

ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — LL8023-00 — 28.10.2016 —