LT8924 - Electronic level and temperature sensor

Product characteristics

Number of inputs and outputs	Number of digital outputs: 4
Factory setting	2 switching outputs level (OUT1, OUT2); 2 switching outputs temperature (OUT3, OUT4); mineral oils
Probe length L [mm]	728

Application

Media

hydrous coolants; oils; oil-based media; 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

Pressure rating [MPa]

0.05

Note on pressure rating

when mounting with mounting accessories: E43001 - E43007, E43019

Coolants

Medium temperature [°C]	0...35; (with climatic tube E43102 35...55 °C)

Oil

Medium temperature [°C]	0...70
Medium temperature short time [°C]	0...90; (< 1 h)

Water

Medium temperature [°C]	0...35; (with climatic tube E43102 35...55 °C)

Electrical data

Operating voltage [V]	18...30 DC
Current consumption [mA]	< 50
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; IO-Link
Electrical design	PNP/NPN
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

Factory setting	2 switching outputs level (OUT1, OUT2); 2 switching outputs temperature (OUT3, OUT4); mineral oils
Probe length L [mm]	728
Active range A [mm]	585
Inactive range I1 / I2 [mm]	104 / 39

Setting range

Set point SP [mm]	60...590
Reset point rP [mm]	50...580
In steps of [mm]	10
Reference point OP [mm]	200 - 240 - 280 - 310 - 350 - 390 - 420 - 460 - 500 - 530 - 570 - 610 - OFF
Hysteresis, OP [mm]	4

Temperature monitoring

Measuring range [°C]	-20...90
Set point SP [°C]	-19.5...90
Reset point rP [°C]	-20...89.5
In steps of [°C]	0.5
Resolution of switching output [K]	0.5

Accuracy / deviations

Measuring error [% of the final value]	± 5
Repeatability	± 2
Resolution [mm]	10

Temperature monitoring

Switch point accuracy [K]	± 1,5
Resolution [K]	0.5
Dynamic response T09 [s]	90

Software / programming

Parameter setting options	hysteresis / window; normally open / normally closed; SP/rP position; OP position; adjustment OP; medium selection; offset setting; Display unit; process value assignment

Interfaces

Communication interface

IO-Link

Transmission type

COM2 (38,4 kBaud)

IO-Link revision

1.1

SDCI standard

IEC 61131-9

Profiles

Smart Sensor: Process Data Variable; Device Identification, Device Diagnosis

SIO mode

yes

Required master port type

A

Process data analogue

4

Process data binary

4

Min. process cycle time [ms]

4.5

Supported DeviceIDs

Type of operation	DeviceID
default	1532

Operating conditions

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

Tests / approvals

EMC

DIN EN 61000-6-2
DIN EN 61000-6-4

Shock resistance

DIN EN 60068-2-27

15 g (11 ms)

Vibration resistance

DIN EN 60068-2-6

5 g (10...2000 Hz)

MTTF [years]

225

Mechanical data

Weight [g]	499.25
Dimensions [mm]	Ø 16
Materials	stainless steel (304/1.4301); stainless steel (316L/1.4404); FKM; NBR; PBT; PC; PA; PP; TPV
Materials (wetted parts)	PP

Displays / operating elements

Display

Display unit	2 x LED, green (cm, °C)
switching status	4 x LED, yellow (OUT4...OUT1)
measured values	alphanumeric display, 4-digit
parameter setting	alphanumeric display, 4-digit

Remarks

Pack quantity	1 pcs.

Electrical connection

Connection	Connector: 1 x M12; coding: A