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Moisture meter
User Manual
humimeter RH2
water activity measuring chamber
for determining the water activity of food
78,0 °F | 6,16 % | 456 kg/m
| -27,3 td | 0,64 aw | 51,9 %r.H. | 14,8 % abs | 100,4 g/m
| 09 m/s | 4,90 Ugl | 1
3
2
Always read this user manual before using the humimeter RH2!
Version 2.5
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Table of Contents
Related Manuals for Schaller RH2
Summary of Contents for Schaller RH2
- Page 1 78,0 °F | 6,16 % | 456 kg/m | -27,3 td | 0,64 aw | 51,9 %r.H. | 14,8 % abs | 100,4 g/m | 09 m/s | 4,90 Ugl | 1 Always read this user manual before using the humimeter RH2! Version 2.5...
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Page 2: Your Humimeter Rh2 At A Glance
RH2 aW value measuring chamber user manual Your humimeter RH2 at a glance The main unit Name Connector for external sensor USB port (optional) Display Keypad Rubber protection cover Page 2... -
Page 3: Rear Of The Main Unit
Rear of the main unit Name Battery compartment Page 3... -
Page 4: The Water Activity Measuring Chamber
RH2 aW value measuring chamber user manual The water activity measuring chamber Name Screw-top jar Protective grid Measurement Measuring range Resolution Accuracy aw value 0 to 1 0.001 aw calibration: 0.00 to 0.98 "15.2 Technical data" temperature °C 0 °C to +50 °C 0.1 °C... -
Page 5: The Display Symbols
The display symbols Symbol Name Symbol Name Enter Change input level Down Back Change menu Enter numbers Enter data Enter letters View measurements Continue / go right Delete measurements Left On/off button, display light Save measured value Auto save Hold function The menus The device has three different menus: product selection, Data Log and main menu: Product selection menu... - Page 6 RH2 aW value measuring chamber user manual Data Log menu Name Change menu Display illumination / device on/off Save measured value Show the last recorded values Main menu The main menu comprises the following menu items: • Edit Logs: Manual Logs, Auto Logs,Clear Logs •...
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Page 7: Table Of Contents
Table of contents Your humimeter RH2 at a glance ������������������������������������������������� 2 The main unit ......................2 Rear of the main unit ....................3 The water activity measuring chamber ..............4 The display ....................... 4 The display symbols ....................5 The menus ....................... 5 1�... - Page 8 RH2 aW value measuring chamber user manual Taking a measurement ................17 Switching the device off ................ 17 5� The measuring process ������������������������������������������������� 18 Preparing a measurement ..............18 Taking a measurement ................18 Adjustment behaviour of the sensor ............21 6�...
- Page 9 9� Checking the device’s status ���������������������������������������� 38 10. Configuring the device ������������������������������������������������� 39 10.1 Turning on Bluetooth ................39 10.2 Adjusting the date/time ............... 39 10.3 Setting the emission ratio ..............40 10.4 Selecting a language ................40 10.5 Activating options ................. 41 10.6 Deactivating options ................
- Page 10 RH2 aW value measuring chamber user manual 15� Device information ������������������������������������������������������� 52 15.1 EC declaration of conformity ..............52 15.2 Technical data ..................56 16� Notes ����������������������������������������������������������������������������� 58 Page 10...
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Page 11: Introduction
Introduction Information about this operating manual This operating manual is designed to enable you to use the humimeter RH2 safely and effectively. It is part of the device, has to be stored nearby and must be easily acces- sible to users at all times. -
Page 12: Symbols Used In This Manual
RH2 aW value measuring chamber user manual Symbols used in this manual All of the safety information provided in this manual is shown with a corresponding symbol. CAUTION It is essential to observe this warning. Non-compliance can lead to injury. -
Page 13: For Your Safety
For your safety The device complies with the following European directives: • Restriction of Hazardous Substances in Electrical and Electronic Equipment (RoHS) • Electromagnetic compatibility (EMC) The device corresponds to state-of-the-art technology. However, it is still associated with a number of residual hazards. These hazards can be avoided through strict observance of our safety information. -
Page 14: General Safety Information
RH2 aW value measuring chamber user manual General safety information The following safety information has to be observed at all times to avoid damage to objects and injury to people: • Remove the batteries if the device is not used for a prolonged period of time (4 weeks). -
Page 15: On Receipt Of Your Device
• Battery operated portable thermal printer (only possible together with humimeter USB data interface module) - Described in a separate operating manual • Bluetooth module - Described in a separate operating manual • Wall holder, mounted on humimeter RH2 Page 15... -
Page 16: Inserting Batteries
RH2 aW value measuring chamber user manual Inserting batteries Remove the rubber protection cover. To do so, hold the rubber protection cover at the upper side and pull it over (figure and 2). In case of a sensor being connected,... -
Page 17: Selecting The Product Type
Selecting the product type To do so: The device has to be in the product selection menu. For an overview of the different product types and the criteria for selecting them, please refer to "7. Product types". Press the or button to move from one product to the next Press the... -
Page 18: The Measuring Process
RH2 aW value measuring chamber user manual The measuring process Preparing a measurement To do so: The device has to have nearly the same temperature than the product being measured. It is recommended to let your humimeter device adjust to the surrounding temperature for at least 30 minutes before the measurement. - Page 19 ► The user is responsible to check the media compatibility before using the RH2 aw-value. If necessary, a consultation with the sales partner or the manufacturer has to made.
- Page 20 RH2 aW value measuring chamber user manual Information - Measuring accuracy This rapid and non-destructive measuring procedure allows you to take multi- ple moisture readings of the same sample material. When saving the individual readings, the device will automatically calculate the readings’ average (see "6.2.2 Saving several readings (a measurement series) at the same...
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Page 21: Adjustment Behaviour Of The Sensor
Adjustment behaviour of the sensor In humidity and temperature measurement, several parameters are responsible for the adjustment behaviour (time until the actual measuring value is displayed). The para- meter responsible for the highest measuring error is a temperature discrepancy between the sensor resp. the whole measuring instrument and the material being measured resp. -
Page 22: Saving Your Readings
RH2 aW value measuring chamber user manual Saving your readings Hold function - Freezing the displayed values The device can be configured in such a way that the information being shown on the display will freeze at the touch of a button until a new button is pressed. This function can be used if you want the measuring value to remain on the display. -
Page 23: Saving Your Readings Manually
Saving your readings manually All of the readings can be saved, edited and viewed on the device. The figure below shows the overview screen of a single saved series of measurements. Name Name of the measurement series (editable) Temperature (average) Date &... - Page 24 RH2 aW value measuring chamber user manual » The setting has been saved. Press to leave the Options menu. Press to leave the main menu. Using the manual save function To do so: The device has to be in the Data Log menu (see "Data Log menu"...
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Page 25: Saving Several Readings (A Measurement Series) At The Same Time
6.2.2 Saving several readings (a measurement series) at the same time To do so: The device has to be in the Data Log menu (see "Data Log menu" page Take several readings (see "5. The measuring process"). To save a reading, press as soon as the reading has been taken. -
Page 26: Auto Save Function (Time-Based)
RH2 aW value measuring chamber user manual Auto save function (time-based) The device can be configured in such a way that it will automatically save a reading (log) at a selected time interval. 6.3.1 Activating the Auto save function in the Options menu To do so: The device has to be switched on and be in the product selection menu. -
Page 27: Viewing Individual Readings
Inputting letters: Press and hold to quickly scroll to the required letter and either press it for 3 seconds or press to confirm the selected letter. Inputting numbers: Press and hold to quickly scroll to the required number and either press it for 3 seconds or press to confirm the selected number. -
Page 28: Viewing Individual Readings From A Series Of Measurements
RH2 aW value measuring chamber user manual Viewing individual readings from a series of measurements To do so: You must have saved a series of measurements (e.g. 2 logs). The display will now appear as shown in figure 31. -
Page 29: Deleting Individual Measurement Series
Press to leave the Edit Logs menu. Press to leave the main menu. Deleting individual measurement series To do so: You must have saved a measured value (e.g. 1 log) or a series of measurements (e.g. 3 logs). The display will now appear as shown in figure 39. -
Page 30: Deleting Individual Values From A Single Series Of Measurements
RH2 aW value measuring chamber user manual Deleting individual values from a single series of measurements To do so: You must have saved a series of measurements comprising at least 2 logs. The display will now appear as shown in figure 42. -
Page 31: Product Types
Product types Product type Definition Unit Measuring range absolute Hu- absolute air humidity 0 to 130 g/m³ g/m³ midity °C -55 °C to +60 °C Dew Point Dew Point °F -67 °F to 140 °F relativ Humidity relative air humidity % RH 0 to 100 % 2 to 30 %... -
Page 32: Definition Water Activity
The humimeter RH2 water activity measuring chamber is generally not suited for liquids as well as juices (syrup), acidic food such as onions, fruits and tropical fruits or food and beverages containing alcohol, such as filled chocolates. - Page 33 Materials with a moisture content above the fibre saturation point, this means an aw value above 1, cannot be measured. For such materials only the water content can be determined. The water activity must not be confused with the water content – the percentage of water contained in a product.
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Page 34: Application Range
RH2 aW value measuring chamber user manual Typical sorption isotherms of various foods and materials taken from literature: Application range Within the normal application range (normal range) the accuracy of the device is as indicated. A long-term application beyond the normal application range (max. range), particularly at an air humidity of more than 80%, can lead to higher measuring errors (+3 % after 60 hours). -
Page 35: Using The Logmemorizer Program
Exporting measured values to a computer To do so: LogMemorizer must be installed. And you must have taken and saved one or several moisture readings. Options: You can export moisture readings from the humimeter RH2 or initiate the export at your computer. Page 35... - Page 36 RH2 will now be sent to your computer. Initiating the data export at your computer Connect the humimeter RH2 to your computer using the supplied USB cable. Insert the USB Mini B connector into the humi- meter RH2 (figure 53).
- Page 37 Import most recent manual log (for importing the most recent manually saved log). Name Import all auto save logs Import most recent auto save series Import all manual logs Import most recent manual » The measuring values saved on the humimeter RH2 will now be sent to your computer. Page 37...
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Page 38: Checking The Device's Status
RH2 aW value measuring chamber user manual Checking the device’s status Press twice or hold for 2 seconds. Select Status. To do so, press and confirm by pressing » The display will then show the status indicator humimeter. »... -
Page 39: Configuring The Device
10. Configuring the device 10.1 Turning on Bluetooth The information on Bluetooth is provided in a separate operating manual. 10.2 Adjusting the date/time Press twice or hold for 2 seconds. Select Options. To do so, press and confirm by pressing Select Date/Time. -
Page 40: Setting The Emission Ratio
RH2 aW value measuring chamber user manual 10.3 Setting the emission ratio Press twice or hold for 2 seconds. Select Options. To do so, press and confirm by pressing Select Emission ratio. To do so, press and confirm by pressing Overwrite the current emission ratio. -
Page 41: Activating Options
10.5 Activating options To do so: Some of the options must be deactivated. Press twice or hold for 2 seconds. Select Options. To do so, press and confirm by pressing Select Unlock. To do so, press and confirm by pressing »... -
Page 42: Selecting °C/°F
RH2 aW value measuring chamber user manual 10.7 Selecting °C/°F To do so: All of the options must be activated (see "10.5 Activating options"). Press twice or hold for 2 seconds. Select Options. To do so, press and confirm by pressing Select °C/°F. -
Page 43: Configuring Automatic Switch-Off
10.8.2 Configuring automatic switch-off To do so: All of the options must be activated (see "10.5 Activating options"). Press twice or hold for 2 seconds. Select Options. To do so, press and confirm by pressing Select Auto Off Time. To do so, press and confirm by pressing Select the period of time you want the device to stay switched on (3 minutes, 5 minutes, 10 minutes, 20 minutes, 30 minutes). -
Page 44: Changing The Password
RH2 aW value measuring chamber user manual 10.12 Changing the password To do so: All of the options must be activated (see "10.5 Activating options"). Press twice or hold for 2 seconds. Select Options. To do so, press and confirm by pressing Select Password. -
Page 45: Resetting The Device To Its Factory Settings
10.13 Resetting the device to its factory settings To do so: All of the options must be activated (see "10.5 Activating options"). Press twice or hold for 2 seconds. Select Options. To do so, press and confirm by pressing Select Reset. To do so, press and confirm by pressing »... -
Page 46: Cleaning And Maintenance
RH2 aW value measuring chamber user manual 11. Cleaning and maintenance Regularly cleaning and maintaining the device will ensure that it will have a long service life and stay in good condition. 11.1 Changing the batteries The device constantly monitors the charge level of the batteries. -
Page 47: Checking The Calibration
12. Checking the calibration Requirement: Calibration ampoules (humidity standards art.no.10005). Use for the calibration one of the screw-top jars with a filling quantity of 186 ml. The device, the water activity measuring chamber and the humidity standards must have a tempera- ture between 20.0 °C and 26.0 °C. -
Page 48: Determining The Deviation
RH2 aW value measuring chamber user manual CAUTION Risk of injury Lacerations caused by breaking the ampoules during removal. ► Remove the ampoules from the packaging by their base, as shown in picture 66. ► Avoid putting stress on the predetermined breaking point, as shown in picture 67. -
Page 49: Faults
» It is also possible to run the calibration by yourself using the calibration am- poules: For instructions on how to perform calibration, please contact Schaller Messtechnik GmbH or your distributor. Open the measuring chamber and clean the glass jar with plenty of water. The textile pad must be washed out well and can then be dispossed. - Page 50 RH2 aW value measuring chamber user manual Fault Cause Remedy Wrong product type Check whether you have selected the right product type before taking a reading (see "7. Product types"). Filling volume too low Fill the screw-top jar to at...
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Page 51: Storage And Disposal
14. Storage and disposal 14.1 Storing the device The device must be stored as follows: • Do not store outdoors. • Store in a dry and dust-free place. • Protect the device from sunlight. • Avoid mechanical shocks/loads. • Remove the batteries if the device is not used for a period of 4 weeks or longer. -
Page 52: Device Information
A – 8181 St. Ruprecht Produktbezeichnung: humimeter Product designation: Typenbezeichnung: RH1 ; RH2 ; RH2 AW ; RH5 ; RH5.1 ; RH5.2 ; RH6 ; RHL ; Type designation: Produktbeschreibung: Messgerät zur Bestimmung der rel.Feuchte und abgeleiteter Messgrößen Measuring instrument for determining relative humidity... - Page 53 Für das angeführte Produkt ist eine vollständige Dokumentation mit Betriebsanleitung in Originalfassung vorhanden. For the mentioned product a complete documentation with manual of instruction in original version is available. Bei Änderungen, die nicht vom Hersteller spezifiziert sind, verliert diese Konformitätserklärung die Gültigkeit.
- Page 54 A – 8181 St. Ruprecht Product designation: humimeter Type designation: RH1 ; RH2 ; RH2 AW ; RH5 ; RH5.1 ; RH5.2 ; RH6 ; RHL ; Measuring instrument for determining relative humidity Product description and derived measured variables The designated product is in conformity with the following directives: Electromagnetic Compatibility Regulations 2016 Great Britain •...
- Page 55 For the mentioned product, a complete documentation with manual of instruction in original version is available. In case of any changes not agreed upon with the manufacturer, this declaration of conformity loses its validity. St. Ruprecht a.d. Raab, 31.07.2022 …............Bernhard Maunz Legal binding signature of the issuer Page 55...
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Page 56: Technical Data
RH2 aW value measuring chamber user manual 15.2 Technical data Display resolution 0.1 g/m absolute humidity, 0.1 % rel. air humidity, 0.1 °C / 0.3 °F dew point, 0.1 °C/ 0.3 °F temperature, 0.1 % EMC Wood, 0.01 % EMC POM, 0.001 aw... - Page 57 Display 128 x 64 illuminated matrix display Device dimensions 249 x 75 x 30 mm Dimensions water activity ø 85 x 102 mm (186 ml) measuring chamber ø 85 x 111 mm (245 ml) Device weight 210 g Weight water activity 542 g (186 ml) measuring chamber 556 g (245 ml)
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Page 58: Notes
RH2 aW value measuring chamber user manual 16. Notes Page 58... - Page 59 Page 59...
- Page 60 Schaller Messtechnik develops, produces and sells professional moisture meters and turnkey solutions. Schaller Messtechnik GmbH Max-Schaller-Straße 99, A - 8181 St. Ruprecht an der Raab Tel +43 (0)3178 - 28899 , Fax +43 (0)3178 - 28899 - 901 info@humimeter.com, www.humimeter.com...
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