Stable temperature yields precise measurements.

Temperature-stabilized measurement
With AwTherm, ROTRONIC offers a professional, high-end laboratory unit for temperature-stabilized measurement of water activity in the foodstuffs, cosmetics, or pharmaceutical industries.
The wide control range permits measurements to be integrated directly in the tempered manufacturing or storage process. Water-activity measurement reacts very sensitively to variances in temperature. Stabilizing the temperature prevents imprecise results due to external temperature influences.

Exchangeable measuring head
A further advantage of AwTherm is that the measuring head is removable, which means that the probe can be temperature-calibrated or adjusted to give high precision.

User-friendliness
The AwTherm shows its paces in island-operation mode, with its simple handling and clarity. No laboratory should be without the device in conjunction with the ROTRONIC HW4 software

Why measure water activity?
The free water in a product influences its microbiological, chemical and enzymatic stability. If there is too much free water present, the products spoil; too little water can be detrimental to the product characteristics.

Measuring water activity provides useful information about characteristics such as cohesion, storage lifetime, clotting or pourability of powders, tablets, etc., or the adhesive properties of coatings.

Features:

• ROTRONIC HYGROMER® IN-1
• Highest precision through exact stabilization of temperature
• Wide temperature-control range
• Excellent reproducibility
• Excellent long-term stability
• Variable size of sample container
• Reference probe exchangeable for calibration or cleaning
• Quickest measurements with the AwQuick function
• Simple operation via Touch Interface
• Conforms to ISO 21807 / EMC 2008/108/EC / IEC EN 61010-1:2010

AWTHERM Catalogue Page
AWTHERM Manual V1.1

ROTRONIC provides a high-end laboratory device – the HygroLab C1 – for water activity measurements with up to four probes. Connect station probes and insertion probes for measuring water activity in cheese, meat, tobacco, building materials, animal feed, pharmaceuticals products and much more.

Validated software
Easy-to-use and intuitive, the laboratory grade indicator can be used by anyone. HW4 running on a PC provides remote monitoring with charting and data recording functions.

Features:

• 4 input channels for HC2 station probes or HC2 insertion probes can be connected for measurement of water activity, relative humidity and temperature
• Aw Quick function for fast measurement results (typically 4-5 minutes)
• Audible alarm to indicate completed measurement
• Saves up to 2,000 data records with %RH, °C/°F, date and time

HygroLab C1 Catalogue Page
HygroLab C1 Manual V1.11
HygroLab C1 Short Instruction Manual

The ROTRONIC Aw starter kits include everything needed for measurement and calibration.

Bench-top kit HygroLab C1-SET-40
Set content:

• Bench top display device (including power adapter AC -> DC 12V & HW4 software with Aw-Quick) : HygroLab C1
• Measurement probe: HC2-AW
• USB-Cable for PC connection: AC0002
• Sample holder: WP-40
• Disposable sample container (100 pc.): PS-14
• Disposable sample container (100 pc.): PS-40
• Humidity standards 0.5 %RH: EA00-SCS
• Humidity standards 10 %RH: EA10-SCS
• Humidity standards 35 %RH: EA35-SCS
• Humidity standards 50 %RH: EA50-SCS
• Humidity standards 80 %RH: EA80-SCS

HygroLab C1 Catalogue Page

Water Activity Sets Catalogue Page

In many situations it can be very useful to measure water activity in production or storage rooms, e.g. inspection of bulk materials to ensure they meet specifications. The HygroPalm 23-AW-A is ideal for measuring water activity in production processes such as random checks of cheese, meat, tobacco, building materials, animal feeds, bakery products, paper, medicines, horticulture, agriculture, etc.

Applications
The HygroPalm HP23-AW-A offers the perfect solution for on-site water activity measurements to confirm product stability and indicate shelf life. The HP23-AW-A is suitable as a mobile laboratory unit. Equal to the HygroLab C1 the HP23-AW-A is perfect as a portable analyzer with two probe inputs for any suitable HC2 probe. The HP23-AW-A can also be used in conjunction with HW4-P-QUICK-Vx.

Portable and convenient
Handheld instrument specially configured to suit the water activity user. It includes many of the advanced features of the HygroLab C1, but in a convenient portable configuration.medicines, horticulture, agriculture, etc.

Features:

• 2 input channels for HC2 station probes or HC2 insertion probes can be connected for measurement of water activity, relative humidity and temperature
• AW Quick function for fast measurement results (typically 4-5 minutes)
• Audible alarm to indicate completed measurement
• Saves up to 10,000 data records with %rh, °C, date and time
  Battery charging function

HP23-AW-A Catalogue Page
HP23-AW-A Manaual V2.14

The HygroPalm AW sets are the perfect solution for on-site measurements. They are supplied in a tough, lightweight ABS carry case and include everything needed for measurement and calibration.

With 14 mm sample holder.

Set consists of:

• Handheld instrument: HP23-AW-A
• Measurement probe: HC2-AW
• Sample holder: WP-14-S
• Disposable sample container (13 pc.): PS-14
• Humidity standard 10 %rh: EA10-SCS
• Humidity standard 35 %rh: EA35-SCS
• Humidity standard 50 %rh: EA50-SCS
• Humidity standard 80 %rh: EA80-SCS
• Case: AC1124

Water Activity Sets Catalogue Page

The HygroPalm AW sets are the perfect solution for on-site measurements. They are supplied in a tough, lightweight ABS carry case and include everything needed for measurement and calibration.

With 40 mm sample holder.

Set consists of:

• Handheld instrument: HP23-AW-A
• Measurement probe: HC2-AW
• Sample holder: WP-40
• Disposable sample container (10 pc.): PS-40
• Humidity standard 10 %rh: EA10-SCS
• Humidity standard 35 %rh: EA35-SCS
• Humidity standard 50 %rh: EA50-SCS
• Humidity standard 80 %rh: EA80-SCS
• Case: AC1124

Water Activity Sets Catalogue Page

ApplicationsFor water activity measurements in bulk materials such as flour, grain, spices, etc. For solid and pasty products such as meat, sausage as well as oils, fats, etc.

Features:

• On/Off switch
• UART interface for direct connection to a PC
• Power supply via UART interface
• Adjusted at 23 °C and 10, 35, 80 %rh
• For use with HygroLab C1, HP23-AW-A

HC2-AW Catalogue Page
HC2-AW Short Instruction Manual

The new station probe HC2-AW-USB offers new possibilities. The USB probe can be directly connected to a PC running HW4-P-QUICK-Vx software enabling water activity measurement capability. The HC2-AW-USB is the perfect device for a multi station application, as multiple probes can be attached to a single PC.

USB station probes
USB probes can be ordered as single probe or as a set including the HW4 software with Aw Quick function. The set offers all possibilities to measure water activity.

Features:

• Complete set of probe and HW4 including Aw Quick function available
• Measurement range: 0.00…1.00 Aw (0…100 %RH), -40…85 °C (-40..185 °F)
• USB interface for direct connection to a PC (HC2-AW-USB)

HC2-AW-USB Catalogue Page
HC2-AW-USB Manual V1.11
HC2-AW-USB Short Insutrction Manual

Handheld Probe for Measuring Bulk Packaged Materials
The insertion probe is suitable for measurement in bulk materials, bricks, concrete, etc. It measures humidity and temperature and calculates the dew/frost point.

Applications
10 mm insertion probe: measurements in dusty bulk materials such as flour, sugar, etc.

Features:

• Range of application: -40…85 °C / 0…100 %rh
• Digital interface (UART) and scalable analog outputs, 0…1 V
• Standard output scaling: 0…1 V = -40…60 °C / 0…100 %rh
• Adjusted at 23 °C and 10, 35, 80 %rh

AW Insertion Probes Catalogue Page

The insertion probe is suitable for measurement in dust-free bulk materials, bricks, concrete, etc. It measures humidity and temperature and calculates the dew/frost point.

Applications
Water activity measurement, mobile measuring units with handheld instruments and data loggers

Features:

• Range of application: -40…85 °C / 0…100 %rh
• Digital interface (UART) and scalable analog outputs, 0…1 V
• Standard output scaling: 0…1 V = -40…60 °C / 0…100 %rh
• Adjusted at 23 °C and 10, 35, 80 %rh

AW Insertion Probes Catalogue Page

The stainless steel sample holders were developed specifically for the water activity probes HC2-AW / AW-DIO. There are 2 sizes available WP-14S for 14mm deep and WP-40 40mm deep. Both products provide excellent sample containment and optimum temperature stability. The WP40-TH can be used with both dispoable sample holders.

Materials:

• WP-14S & WP-40: V2A Steel
• WP-40TH: Brass, nickel-plated

AW Accessories Catalogue Page

The disposable sample containers ensure the optimum sample volume is introduced. 2 sizes are available PS-14(14mm cups) for the WP-14S, PS-40(40mm cups) for the WP-40 / WP-40TH sample holders. They prevent the sample holders from coming into direct contact with the product being tested, thereby preventing soiling or cross contamination. The sample containers also provide a convenient means of collecting and storing samples.

AW Accessories Catalogue Page

In the case of very dry or very moist samples additional mechanical sealing of the AW measurement station and sample holder may be necessary to prevent external conditions influencing the sample. The AW-KHS provides a strong mechnical seal and is compatible with the WP-40 & WP-40TH sample holders

AW Accessories Catalogue Page

Visualization of multiple loggers and measured values Monitoring (1 instrument at a time), data logger programming, data retrieval, scaling, instrument settings, alarm function, service and configuration tool for ROTRONIC instruments, time synchronization, adjustment and calibration of ROTRONIC probes. No password protection.

Supported operating systems
Microsoft Windows XP Service Pack 2, Vista, Windows 7, Windows 8, Windows 10

Software Catalogue Pages

ROTRINIC humidity standards are delivered in packs of five ampoules of the same humidity value. Every ampoule is marked with its humidity value and a serial number. The most frequently used values are 35 & 80%rH, which are used for two point calibration. All ampoules except the 0%rH standard contain an unsaturated salt solution; the 0%rH standard consists of a highly porous molecular seive. An SCS certificate documenting traceability to national standard and specifying the uncertainty of humidity standard is enclosed with every pack. They different national agencies for metrology recognise each others' certificates reciprocally through the ILAC Mutual Recognition Agreement. As a result, an instrument calibration certificate from Switzerland (SCS) is accepted worldwide by local certification bodies.

SCS Humidity Standards Catalogue Page
SCS Humidity Standards - Materials Safety Data Sheet (MSDS) Rar File

ROTRONIC calibration devices are small, airtight chambers that precisely fit ROTRONIC probes. The lower part of the device consist of a screw on lid into which the humidity standard is poured onto an absorbent textile pad. The specified humidity is generated in the calibration device after a stabilisation period of 30 to 180 minutes. The probe can then be calibrated or adjusted in comparison with the reference value of the humidity standard.

Calibration devices preform at their best only if they are properly maintained. Wash the calibration devices carefully after each use, and let them dry. Make sure that no salt deposits form inside the device or threads, as this may cause errors. Worn O-ring should be replaced

Calibration Procedures
Calibration Devices Catalogue Page

Pryde Measurement Pty. Ltd.,
ACN 112 029 777
National Customer Service - Free Call: 1800-688-211