SLQ-QT500

Measurement of highly viscous liquids with up to 120 ml/min

Specification

Liquid flow
Full scale flow rate (H2O)
120000
ul_min
Accuracy (H2O)
5
%
Repeatability (H2O)
0.5
%
Full scale flow rate (IPA)
120000
ul/min
Accuracy (IPA)
5
%
Repeatability (IPA)
0.5
%
Maximum operating pressure
12
bar
Fluidic connector ports
1/4 tubing
Generic
Supply voltage
3.3 - 3.7
V
Average supply current
5.1
μA
Max. supply current
6.5
μA
Interfaces
Analog voltage, Analog current, I²C, RS485
Package size (LxWxH)
59 x 35 x 29.2
mm³

Technical downloads

Name
Type
Date
File
Size
Datasheet SLQ-QT500
Datasheet
07/2018
PDF
529.0 KB
STEP file SLQ-QT500
CAD
10/2021
STEP
3.6 MB
Datasheet sensor cable SCC1-Analog
Datasheet
10/2017
PDF
616.1 KB
Datasheet sensor cable SCC1-Current
Datasheet
10/2017
PDF
581.4 KB
Operating guidelines liquid flow meter kits (SLx and LPG10)
Application note
09/2020
PDF
671.7 KB
SCC1-Analog configurator
Software
10/2021
MSI
3.6 MB
Calibration certification SLQ-QTxx
Certificate
09/2018
PDF
87.8 KB
Viewer software USB/RS485 (V. 2.91)
Viewer software
10/2021
MSI
1.7 MB
Datasheet SCC1-USB, SCC1-RS485 sensor cable
Datasheet
06/2018
PDF
229.4 KB
Analog cable configurator
Application note
04/2017
PDF
274.2 KB
Chemical resistance
Application note
07/2020
PDF
134.7 KB
Cleaning and clean handling
Application note
06/2019
PDF
159.4 KB
Formation, prevention and removal of biofilms
Application note
07/2020
PDF
294.8 KB
Getting started guide liquid flow
Application note
10/2021
PDF
173.9 KB
Pulsation damping kit
Application note
01/2020
PDF
457.8 KB
Selection guide liquid flow sensors
Application note
08/2020
PDF
281.9 KB
Sensor fluidic ports and tubing connections
Application note
08/2020
PDF
657.4 KB
Toolbox overview liquid flow
Application note
10/2021
PDF
97.0 KB
Quick start guide liquid flow meter kit
User guide
07/2018
PDF
1.0 MB
Quick start guide pulsation damping kit
User guide
01/2003
PDF
86.9 KB
SCC1-RS485 configurator (V. 1.8)
Software
10/2021
MSI
2.2 MB
SCC1-RS485 sensor cable DLL
Software
10/2021
ZIP
908.5 KB
REACH and RoHS declaration SLF
Certificate
07/2021
PDF
97.9 KB
Product brochure LF
Flyer
07/2021
PDF
2.4 MB

Buy the following product to evaluate this sensor

The SLQ-QT500 features a flow range of up to 120 ml/min for water-based and hydrocarbon-based liquids, such as alcohols, solvents, oil, fuel and adhesives. It is the first choice for measurement of liquids containing particles or with a high viscosity. The SLQ-QT500 in combination with one of the SCC1 sensor cables can be easily integrated into demanding coating systems in the semicon industry, as well as into a wide array of dispensing and liquid flow systems in other industries.

The high sensitivity and measuring speed offers new possibilities for the monitoring and control of fast dispensing processes. The sensor is available with calibrations for H2O and isopropanol (IPA). Due to its micro-thermal measurement principle and large inner diameter, the measurement performance of the SLQ-QT500 does not depend on the viscosity itself, and so there is no strict upper or lower viscosity limit (e.g. kinematic viscosities of up to ~1000 mm2/s). It is also ideal for liquids that contain small particles, as long as they do not abrade the quartz glass tube.

For wetted parts, only PFA for the fittings and quartz glass for the inner flow channel have been chosen. As with all other Sensirion liquid flow meters, this reliable device has no moving parts and measures through the wall of a straight flow path.

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