Moisture Sorption
SPS23 - 100n

The SPS series offers fully automated multi-sample analysis for gravimetric water vapor sorption. The SPS23-100n with its ultra-precise 100 nanogram resolution is specially designed for  applications with very small quantities of sample mass like in pharmaceutical preformulation.

SPSx-1µ Advance

The SPS series offers fully automated multi-sample analysis for gravimetric water vapor sorption. The SPSx-1µ Advance combines the highest resolved sorption measurements with extended temperature range ideal for versatile applications in the pharmaceutical, food, and chemical industries.

SPSx-1µ High Load

The SPS series offers fully automated multi-sample analysis for gravimetric water vapor sorption. The SPSx-1µ High Load enables analysis of large sample quantities up to 220 g with very high resolution and is compatible with all Hardware accessories of proUmid.

SPS11-10µ

The SPS series offers fully automated multi-sample analysis for gravimetric water vapor sorption. The SPS11-10µg with its 11 large sample positions and wide load range it is perfect for analyzing bulky or heavy samples.

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Current selection:SPS23 - 100nSPSx-1µ AdvanceSPSx-1µ High LoadSPS11-10µ

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  • Ultra-high precision with 0.1 µg resolution
  • 23 samples simultaneously (⌀ 18 mm)
  • Minimal sample mass from 3 mg
  • Specialized for pharmaceutical preformulation
  • Versatile: 23 samples (⌀ 33 mm) or 11 samples (⌀ 50 mm)
  • Extended temperature range up to 60 °C
  • 1µg resolution for highest accuracy
  • Ideal for pharmaceutical, food, and chemical industries
  • Large sample quantities up to 220 g analyzable
  • Versatile: 23 samples (⌀ 33 mm) or 11 samples (⌀ 50 mm)
  • Dual-stage resolution: 1 µg up to 22 g, 10 µg up to 220 g
  • Ideal for testing samples with higher density and low sorption rates
  • 11 large sample positions (⌀ 50 mm)
  • High capacity up to 220 g per sample
  • Dual-stage resolution: 10 µg up to 111 g, 100 µg up to 220g
  • Ideal for chemical, food and wood industry, building physics and permeability measurements

  • Multi-Sample Instrument

    Fully automated high throughput test system to measure up to 23 samples simultaneously

  • Unique Comparability of Samples

    Direct sample comparison under the same climate conditions in one measurement

  • Outstanding Precision and Long-Term Stability

    No drift effects and precise closed loop temperature and humidity regulation

  • User-Friendly Handling

    Easy handling, easy to clean, easy access to measurement chamber

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Key Features of the SPS Instruments

The sorption analysis systems of the SPS series are fully automated multi-sample systems for gravimetric water vapor sorption. The SPS series combines easy operation with a robust design to deliver reliable, highly sensitive measurements. With a range of unique features, the SPS systems clearly stand out from conventional single-sample instruments.

Closed SPS against grey background

High Precision and Easy Sample Handling

The multi-sample capability of the SPS enables the analysis of up to 23 samples in a single measurement. The sample dishes are arranged in a circle on a sample tray. An autosampler continuously places the samples one after the other on the balance for weighing. Additional Sensors like Raman or Camera are contributing their data software controlled during the measurement.

Close-up of the SPS scale

Advanced Balance Technology

Their top loading function utilizes reliable multisample handling and easy accessibility.

  • Long Term Stability of the Balance

    An internal reference compensates any drift of the micro balance and thus providing excellent balance stability even for long term measurements (>> 24h).

  • Wide Dynamic Load Range

    The dynamic weighing range of the micro and ultramicro balances allows the full range of sample weights from min weight to max load without any adjustments or counterweights. The individual samples used in a measurement can completely differentiate in mass.

  • Excellent Gravimetric Resolution

    The micro and ultramicro balances of the SPS series are available with a gravimetric resolution ranging from 100 ng to 10 µg. The requirements for the precision and resolution of the balance as well as the required balance load range are set by the size, mass and expected water uptake of the samples to be analysed. Small amounts of powder with low sorption capability require a high resolution and excellent repeatability for the acquisition of high value measurement data. For large, bulky and heavy samples, a balance with a high load range is required. For some applications a combination of an extended load range and high resolution is required.

Opened SPS against grey background

Wide Temperature and Humidity Range

For many applications, the sorption behaviour of materials at temperatures and climatic condtions far from room conditions is of interest. The wide temperature range of the SPS enables to conduct vapor sorption analysis at extreme conditions from cool 5 °C to hot 60 °C. Relative humidity can be precisely set and adjusted over the whole range from completely dry 0 % up to 98 % RH close to condensation.

Close-up of the SPS lid

Calibration and Validation

  • Gravimetric Calibration

    The micro or ultramicro balance is easily calibrated with an automated routine using internal reference weights.

  • Humidity Validation

    Calibration of the humidity sensor is accomplished by using salt standards. For a frequent and quick validation of the humidity calibration, proUmid provides a certified reference material.

  • SPS23 - 100n

    humidity range* 0 % RH - 98 % RH 
    (±0,5 % RH bei 10 … 30 °C)
    water supply removable tank
    700 ml
    gas supply compressed air / nitrogen
    2,5 bar to 10 bar
    dry, 
    clean, 
    oil-free 
    (class 1, 
    ISO 8573-1:2010)
    dimensions & weight Width 488 mm
    Depth 630 mm
    Height 437 mm 
    (1024 mm open Lid)
    Weight 62 kg
    application examples Pharmazeutische 
    Forschung und 
    Präformulierung
    temperature range 5 °C - 40 °C (±0,1 K)
    min sample mass <3 mg
    max sample mass 2000 mg
    number of samples & sample size 23 Proben ⌀ 18 mm
     
    balance resolution 0,1 µg
     
    reproducability** ±1,5 µg RMS
     

  • SPSx-1µ Advance

    humidity range* 0 % RH - 98 % RH 
    (±0,5 % RH bei 10 … 30 °C)
    water supply removable tank
    700 ml
    gas supply compressed air / nitrogen
    2,5 bar to 10 bar
    dry, 
    clean, 
    oil-free 
    (class 1, 
    ISO 8573-1:2010)
    dimensions & weight Width 488 mm
    Depth 630 mm
    Height 437 mm 
    (1024 mm open Lid)
    Weight 62 kg
    application examples Pharma 
    Lebensmittelforschung
    Chemie
    temperature range 5 °C - 60 °C (±0,1 K)
    min sample mass <10 mg
    max sample mass 22 g
    number of samples & sample size 23 Proben ⌀ 33 mm
    11 Proben ⌀ 50 mm
    balance resolution  1 µg
     
    reproducability** ±2 µg RMS
     

  • SPSx-1µ High Load

    humidity range* 0 % RH - 98 % RH 
    (±0,5 % RH bei 10 … 30 °C)
    water supply removable tank
    700 ml
    gas supply compressed air / nitrogen
    2,5 bar to 10 bar
    dry, 
    clean, 
    oil-free 
    (class 1, 
    ISO 8573-1:2010)
    dimensions & weight Width 488 mm
    Depth 630 mm
    Height 437 mm 
    (1024 mm open Lid)
    Weight 62 kg
    application examples Lebensmittel
    Chemie
    Materialprüfung
    temperature range 5 °C - 60 °C (±0,1 K)
    min sample mass <30 mg
    max sample mass 220 g
    number of samples & sample size 23 Proben ⌀ 33 mm
    11 Proben ⌀ 50 mm
    balance resolution 1 µg (bis 22 g)
    10 µg (bis 220 g)
    reproducability** ±5 µg RMS (bis 22 g)
    ±20 µg RMS (bis 220 g)

  • SPS11-10µ

    humidity range* 0 % RH - 98 % RH 
    (±0,5 % RH bei 10 … 30 °C)
    water supply removable tank
    700 ml
    gas supply compressed air / nitrogen
    2,5 bar to 10 bar
    dry, 
    clean, 
    oil-free 
    (class 1, 
    ISO 8573-1:2010)
    dimensions & weight Width 488 mm
    Depth 630 mm
    Height 437 mm 
    (1024 mm open Lid)
    Weight 62 kg
    application examples Bauphysik
    Holzforschung
    Permeabilität
    temperature range 5 °C - 60 °C (±0,1 K)
    min sample mass <50 mg
    max sample mass 220 g
    number of samples & sample size 11 Proben ⌀ 50 mm
     
    balance resolution 10 µg (bis 111 g)
    100 µg (bis 220 g)
    reproducability** ±20 µg RMS(bis 111 g)
    ±100 µg RMS (bis 220 g)

* The full humidity range can only be achieved at a chamber temperature slightly above room temperature.
** Root mean square. The specified values assume that the system is installed in an environment suitable for the operation of micro- or submicrobalances.

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proUmid specializes in the manufacturing and worldwide distribution of systems for measuring the sorption properties of materials, as well as humidity generators for analytical applications. Our devices and instruments are used globally in a variety of different applications for water vapor sorption and for regulating relative humidity in analytical instruments.

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