S520
S520 Portable Dew Point Meter for Compressed Air and Gases (-100… +20 °C Td / -50… +50 °C Td)
Mobile and high reliable on-site dew point measurements in compressed air systems.

Flexible dew point meter for on-site live data

Integrated data logger with mass storage

Measures dew point, temperature and pressure

Smart device with camera for dew point prediction

Low dew point, down to -100 °C Td

Dew point audits according to ISO 8573-1

USB interface for data transfer or on site print-outs

Operating pressure of -0.1 ... 1.5 MPa(g)
The S520 Portable Dew Point Meter offers users a single hand-held unit to easily perform on-site measurements in compressed air and gas systems. With its state-of-the-art dew point technology, the S520 provides dew point monitoring at the point-of-use. The first steps toward maintaining high standard compressed air quality and purity conditions.
Unique Triple-Sensor System
With the combination of a QCM and a Polymer sensor in a single unit, the user can measure the dew point in a range from -100 °C Td up to +20 °C Td. without having any drawbacks in terms of accuracy. The integrated pressure sensor allows converting the measured value into any humidity value needed, for example ppm(v) or atmospheric dew point.
Dew Point Value Prediction
The S520 Portable Dew Point Meter offers a unique dew point end value prediction algorithm as a built-in technology. Based on the dew point measurement curve, our algorithm can predict the end value before actually reaching the end value. This feature enables the user to predict the dew point end value in a minimum amount of time. It helps on-site engineers to save time and to perform faster dew point audits. The dew point end value prediction is a part of the smart features.
Optional Smart Features
Dew point end value prediction is a part of the smart features. With the smart features option, users also get a 5 Megapixel camera and the snapshot function for quick measurement logging. Take a quick measurement snapshot of the current measurement, add the customer information and easily create a printed report. All can be done on the device via touchscreen input.
PDF Report Function according to ISO 8573-1
The S520 enables users to create powerful PDF Reports on-site according to the ISO 8573-1 standard. The reports are based on the recommendations stated in the ISO 8573-1. Additionally, customer related data as well as service provider details can be entered on-screen, making it even easier to perform audits and to create meaningful reports.
PDF reports can be created from any recordings on the device and are copied on the fly to a connected USB drive. The declared pressure dew point in °C is stated as the measured dew point under actual conditions. This refers to reference conditions at 20 °C/7 bar(g), as it is required by ISO 8573-1 standard. This is only possible, thanks to the integrated pressure sensor on the S520.
Two Measurement Range Options
- The standard sensor unit has a measurement range of -100 … +20 °C Td and comes with an integrated pressure sensor.
- The economic sensor unit offer the user a range of -50 … +50 °C Td.
SUTO Exchange Service
For the S520 Portable Dew Point Meter SUTO is offering an exchange calibration service. This eliminates downtimes and enables users to have a seamless record of their dew point measurement. Learn more about our SUTO Exchange Service here.
Please contact us here for further consultation. We are happy to find the best possible solution for your application.
- ISO 8573-1 dew point audits
- Fast and convenient dew point checks
- Check drier performance
- Humidity checks at the point of use
- Measure absolute humidity in units like ppm or mg/m3
MEASUREMENT | |
Dew point | |
Accuracy | ± 1 °C Td (0 ... 20°C Td) ± 2 °C Td (-70 ... 0 / +20 … +50°C Td) ± 3 °C Td (-100 ... -70°C Td) |
Selectable units | %rH, °C Td, g/m³, mg/m³, g/m³ atm. ,mg/m³ atm. , ppmv, g/kg, °C Td atm. |
Measuring range | Sensor A: -100 ... +20°C Td Sensor B: -50 ... +50°C Td |
Repeatability | 0.5 °C |
Sensor | Sensor A: QCM + Polymer Sensor B: Polymer |
Pressure | |
Accuracy | 0.5 % FS |
Measuring range | 0 ... 1.5 MPa (g) |
Sensor | Piezo resistive sensor |
Temperature | |
Accuracy | ± 0.3 °C |
Measuring range | -30 ... +50 °C |
Sensor | PT 100 |
SIGNAL INTERFACE & SUPPLY | |
Supply | |
Power supply | USB charger: 5 V, 3 A Connector: USB-C |
Operating time | 8h |
Data interface | |
Connection | USB |
GENERAL DATA | |
Display | |
Integrated | 3.5” color LCD touch screen |
Data Logger | |
Storage | Integrated mass storage, up to 30 million recorded data sets (4 channels each) |
Material | |
Housing | PC + ABS |
Metal parts | Aluminium |
Miscellaneous | |
Protection class | IP30 |
Approvals | CE |
Weight | 2.7 kg complete set in transport case |
Operating conditions | |
Medium | Air, N2, O2, Argon, CO2 Note: The CO2 measurements with the A1371 sensor are limited to -40 °C Td. |
Medium temperature | -30 ... +50 °C |
Medium humidity | 0 ... 90 %, no condensation |
Operating pressure | -0.1 ... 1.6 MPa (g)* |
Ambient temperature | 0 ... +40 °C |
Ambient humidity | 0 ... 80 % rH |
Storage temperature | -20 ... +50 °C |
Transport temperature | -30 ... 70 °C |
* At least 0.3 MPa(g) is needed for the measuring chamber supplied with the instrument. For low-pressure measurements below 0.3 MPa (g) choose the optional bypass measuring chamber A699 3501. |
“S401: INSTALLTION EINES DURCHFLUSSMESSERS UNTER DRUCK”
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