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Summary of Contents for GANN HYDROMETTE BL
- Page 1 Version 2.0 Operating Instructions HYDROMETTE BL COMPACT RH-T RH-T flex Hydromette BL Compact RH-T...
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Page 2: Table Of Contents
Minimum Value Display ........... 17 2.3.5 Saved Menu .............. 18 Other Functions ............... 19 2.4.1 Automatic Switch-off ..........19 2.4.2 Battery Monitoring ............ 19 Specifications ................20 Technical Data................. 20 Prohibited Environmental Conditions........20 Measuring Ranges..............21 Hydromette BL Compact RH-T... - Page 3 Building and Insulation Materials ......35 4.4.2 Wood ................39 Appendix ..................41 Material Table ................41 References ................42 General Concluding Remarks ..........42 Graphical short operating instructions in the centre p. 22-23 Hydromette BL Compact RH-T...
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Page 4: Publication Statement
Mess- u. Regeltechnik GmbH . Subject to technical and documentary changes. All rights reserved. This document was prepared with the required care. Gann Mess - u. Regeltechnik GmbH accepts no liability for errors or omissions. GANN Mess- u. Regeltechnik GmbH, Gerlingen, Germany. -
Page 5: General Notes
Operational reliability and functionality are no longer ensured if the device is modified or adapted. Gann Mess - u. Regeltechnik GmbH is not liable for any damage arising from such modifications or adaptations. The risk is borne by the user alone. -
Page 6: Weee Directive 2002/96/Ec Law On Electrical And Electronic Equipment
Keep the device and accessories out of the reach of children! Gann Mess- u. Regeltechnik GmbH accepts no liability for damage resulting from non-adherence to the operating instructions or by not taking proper care during transport, storage or operation of the device, even if this requirement for care is not specifically addressed in the operating instructions. -
Page 7: Introduction
3-line LCD screen for the simultaneous display of air humidity, air temperature and dew point. The Hydromette BL Compact RH-T flex T model has a flexible sensor tube (6.5 mm diameter, swan neck) and is therefore excellent for measurements of points that are difficult to access. -
Page 8: Device Layout And Button Assignment
Introduction Device Layout and Button Assignment Sensor Display Up button On/off button Measurement button Down button Hydromette BL Compact RH-T... -
Page 9: Display Symbols
Main menu symbols Air humidity in % Measured value is held; ready for measurement Temperature in °C Dew point (Dp) in °C Other symbols Min/Max display Air humidity in % Dead battery Temperature in °C Memory location 1 Hydromette BL Compact RH-T... -
Page 10: Basic Functions
After the start phase, the main menu appears in the "rh" measuring mode (see also section 2.3.2) Last value mease 8(s)] TJ .-.3.58 272.67 Tm1 0 0 Hydromette BL Compact RH-T Lare ue55 t9-29Tfn Tft1( )-)7855t) m e a s u r e m e n... -
Page 11: Display In Measuring Mode
Press the "M" button again to start a new measurement. Approx. 40 seconds after releasing the measurement button, the device switches itself off automatically to save battery power. If the device is switched on again, the last value measured is shown on the display. Hydromette BL Compact RH-T... -
Page 12: Setting Menus
"Max" flashes on the display. If the value is not to be saved, the "M" button must be pressed b riefly. If the value is not to be saved, a new measurement is started with a long press on the "M" button without changing the previous maximum values. Hydromette BL Compact RH-T... -
Page 13: Measuring Mode Selection Menu (Ring Menu)
The BL Compact RH-T has 7 different setting modes, which are run through in the following increasing sequence: Building material 11-25 Relative humidity Wood 32-33 Absolute humidity Water activity Enthalpy Wet-bulb thermometer Figure 2-3: measuring mode selection menu Hydromette BL Compact RH-T... - Page 14 (in %) and the ab solute humidity (in g/m³ i.e. grammes of water in 1m³ of air) Measuring mode "En" (enthalpy): the relative humidity (in %) and the enthalpy (in kJ/k) are displayed Hydromette BL Compact RH-T...
- Page 15 (in °C) and the selected b uilding material are displayed For information on the building material types, see Chapter 5.1 Information and explanations on the individual measuring modes can be found in Chapter 4 "Application instructions" Hydromette BL Compact RH-T...
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Page 16: Maximum Value Display
With a further short press of the "M" button, the entry is confirmed and the device returns to the Ready mode. With the "M" button, a new measurement can then be carried out immediately. Figure 2-5: deleted max. value Hydromette BL Compact RH-T... -
Page 17: Minimum Value Display
With a further short press of the "M" button, the entry is confirmed and the device returns to the Ready mode. With the "M" button, a new measurement can then be carried out immediately. Figure 2-7: deleted min. value Hydromette BL Compact RH-T... -
Page 18: Saved Menu
With a short press of the "M" button, the next memory location "r2" is selected and the value contained there is displayed. After reaching the 5th memory location, the first is shown again. The menu can be exited with the up and down buttons. Hydromette BL Compact RH-T... -
Page 19: Other Functions
2.4.2 Battery Monitoring If the battery symbol appears in the display, the battery is dead and must be renewed A list of battery types that can be used can be found in the "Technical data" chapter. Hydromette BL Compact RH-T... -
Page 20: Specifications
Condensation, humidity continuously high (> 85 %) and damp Permanent presence of dust and combustible gases, fumes and solutions Environmental temperatures continuously too high (> +50 °C) Environmental temperatures continuously (< 0 °C) Hydromette BL Compact RH-T... -
Page 21: Measuring Ranges
Specifications Measuring Ranges Measuring ranges: Air: Humidity: 0 to 100% RH 10 to 90% r.H. (+2% RH) Temperature: -20 to +80 °C 0 to +50 °C (+0.3 °C) Hydromette BL Compact RH-T... - Page 22 Legends On/Off button: Device deactivates Hold measurement button itself after 40 s inactivity pressed longer than 2 seconds. Press measurement button any length of time. >2 s Press measurement button briefly. Release measurement button <1 s Hydromette BL Compact RH-T...
- Page 23 Press up or down button displayed Hold measurement button pressed as long as wanted to carry out a measurement <1 s Up or down for menu selection Release measurement button. Measured value is held ("Hold" appears in display) Hydromette BL Compact RH-T...
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Page 24: Application Instructions
Moisture Saturation Moisture saturation is the maximum amount of water that can be contained in a certain volume of air. The higher temperature the larger the amount of water that can be held in the air. Hydromette BL Compact RH-T... -
Page 25: Relative Air Humidity
0 and 1 aw. The water activity is a measure of the degree of freedom of the free water (of various types) bound in a material. Hydromette BL Compact RH-T... -
Page 26: Wet-Bulb Temperature
The wet-bulb temperature (in the drawing (T2)) is determined with a psychrometric measurement with a thermometer provided with a damp material cover. The wet-bulb temperature is mainly of interest where large amounts of liquids evaporate, such as in wood drying machinery. Hydromette BL Compact RH-T... - Page 27 Application Instructions Figure 4-1: aspiration psychrometer Hydromette BL Compact RH-T...
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Page 28: Enthalpy
The setting time of the air temperature sensor in moving air is approx. 3 minutes for 90 % of the temperature difference. The air temperature sensor adapts to the surrounding temperature even when stored (not switched on). Hydromette BL Compact RH-T... -
Page 29: Dew Point
The water vapour partial pressure is calculated as follows: Further information can be found in the Internet. Hydromette BL Compact RH-T... -
Page 30: Dew Point Dependent On The Air Temperature And The Rel. Humidity For Condensation Calculation
4.2.2 Dew Point Dependent on the Air Temperature and the Rel. Humidity for Condensation Calculation Dew point in °C at a relative humidity of: temperature Moisture saturation = °C amount of water °C °C °C °C °C °C °C in g/m³ 30.4 10.5 14.9... -
Page 31: Handling The Hydromette
Application Instructions Handling the Hydromette The Hydromette BL Compact RH-T is mainly used for measuring the relative air humidity in bulk goods and solid materials (e.g. masonry, concrete, etc.). To do so, hold the Hydromette at the measuring location in the air, or insert into the building material, and commence the measurement. -
Page 32: Sorption Isotherms
Britain and the Scandinavian countries. Compared to the non - destructive measurement or the resistance measurement, it is, however, more time-consuming and requires suitable drilled holes. However, it provides very reliable results when an equilibrium moisture content is sought. This method also increases the Hydromette BL Compact RH-T... - Page 33 Measurement errors Measurements under 20 % r.h. and above 80 % r.h. should not be carried out over a long period where possible (continuous measurements). Other false measurements can arise from Hydromette BL Compact RH-T...
- Page 34 Warning: The sensor is not designed for continuous measurements at above 80 % r.h. (longer than approx. 36 hours at once without regeneration at 30-40 % r.h. in the same period) Hydromette BL Compact RH-T...
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Page 35: Building And Insulation Materials
The air humidity values in living areas in central Europe in the summer are approx. 45 - 65 % rel. humidity and in winter approx. Hydromette BL Compact RH-T... - Page 36 In percent by volume, with double the density the display will be twice as high. For materials not included in the BL Compact RH-T, there are currently no sorption isotherms confirmed or checked by us Hydromette BL Compact RH-T...
- Page 37 11,0 - 12,0 18,0 Elastizell screed 1,8 - 2,2 Anhydrite screed 0,6 - 0,7 Concrete (200 kg cement/m3 sand) 1,6 - 1,7 Concrete (350 kg cement/m3 sand) 1,8 - 2,0 Concrete (500 kg cement/m3 sand) 2,0 - 2,2 Hydromette BL Compact RH-T...
- Page 38 Application Instructions 4.4.1.3 Comparison Graphic of Air Humidity - Material Moisture Hydromette BL Compact RH-T...
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Page 39: Wood
On reaching the equilibrium moisture content, the wood no longer loses moisture if the surrounding conditions remain the same and also does not take up any moisture. Hydromette BL Compact RH-T... - Page 40 Below are some equilibrium moisture content values that are reached with wood in the conditions given: Equilibrium w ood m oisture content Air tem perature in °C °C °C °C °C °C Relative air humidity Wood m oisture content 4,70% 4,70% 4,60% 4,40%...
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Page 41: Appendix
Appendix 5 Appendix Material table Material identifier Description Code Cement screed Anhydrite screed Concrete Cement mortar Gypsum plaster Lime sand brick Lime cement mortar Insulation wood fibre insulating board Mineral wool insulation Brick Hardwood/beech Softwood/pine Hydromette BL Compact RH-T... -
Page 42: References
Appendix References We would like to specifically draw your attention to the fact that the literature mentioned is only an extract and is not complete. The Hydromette BL Compact RH-T... - Page 43 When claiming under the guarantee, the device must be sent post- free to Gann Mess - u. Regeltechnik GmbH or the supplier with details of the claim and accompanied by proof of purchase. The guarantee is void if repairs or other manipulations have been carried out by the owner or a third party.
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