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At increasing moisture, the 4 increments are: dry -> optimum -> moist -> wet According to the measured material the evaluation scale differs! Design of GF2 basic device (article no. 12853) external sensors optional USB interface calibration curve...
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Measuring procedure GF2 basic device To switch on the instrument, press the key for three seconds. After showing the logo, the measuring window opens and the current measuring values are displayed. Now you can select the desired calibration curve by pressing .
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The thickness of floor screed can differ. The humimeter GF2 always measures the supreme layer of 30 mm. If the thickness of the floor screed is less than 30 mm, iron gratings, heating pipes and other metal can cause an incorrect measuring value. Therefore please look for a measuring position without any metal in the measuring field.
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Therefore we recommend to find out the wettest area by effecting a large number of measurements with the humimeter GF2. Then knock off the bottom layer of the wettest area and effect a final evaluation by drying in a drying chamber or via a CM device.
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CM method. The accuracy of the CM method depends on various parameters and is not suited for a comparison with the humimeter GF2 resp. for material calibration. In the following chart of producers of CM devices you can find comparative values of measurements in drying chamber in weight% to CM% for some concrete types.
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Concrete brick For measuring concrete bricks, press the humimeter GF2 with its full surface and a pressure of approx. kg on an even area of the brick. Make sure that the whole measuring area of the device rests on the brick! Light concrete bricks: <...
Keypad symbols Menu level overview Measuring window: Type selection menu Rolling Menu Power ON / OFF Switch upper Next calibration curve Previous calibration curve Switch lower Power off Save Store menu Hold Autolog Show last log Watch saved data Enter new log Power off Enter supplier´s data...
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(see picture), press the button to confirm. Hold the humimeter GF2 in one hand up in the air and make sure that nothing stands behind the black measuring plate. Now press the second button ( ) with one finger.
The calibration procedure will take a few seconds. During that time, the instrument has to be held up in the air and the measuring field must NOT be touched. The device is ready when the picture shown on the right disappears automatically. Changing the batteries Your new device is provided with batteries.
If the battery symbol appears in the measuring window resp. if a critical charge of battery is shown in the status (!), the batteries have to be changed IMMEDIATELY. If you do not use your humimeter device for a longer period, remove the batteries.
Switching off Press the key in the measuring window for 5 seconds. The instrument switches off after releasing the key. The instrument switches off automatically after approx. four minutes. (The turn-off time can be modified in menu level Options – Auto Off Time.) Activation of the “super user”...
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Transfer saved data to the PC only possible with optional USB interface) To send your saved logs to the PC, connect the humimeter device to your PC using the USB cable that was delivered with your device. Carefully loose the protection cap on your humimeter and plug in the USB mini B connector.
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For the basic adjustments of the software please look through the LogMemorizer instructions on USB flash drive. Print saved data only possible with optional interface) To print your saved data, connect the device to the printer using the printer cable that was delivered with your device.
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Changing the sensor Plug in the desired sensor (if necessary screw off the other sensor before). The device automatically recognizes which sensor is active and provides the corresponding calibration curves. Info: using 2 sensors at the same time is not possible!! Changing the sensor in detail: If an external sensor is mounted, screw off this sensor and put it into the plastic case again.
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This external conductance electronics is necessary to connect the optionally available conductance sensors to the humimeter GF2. The calibration of the conductance electronics box can only be effected by Schaller GmbH. The electronics box article no. 13141 includes a connection cable article no.
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Calibration curves conductance sensor measuring calibration curve description density range brick 1.0 to 30% gypsum 0.5 to 14% lime mortar 0.5 to 10% approx. lime gypsum plaster 0.1 to 10% 1150kg/m³ approx. lime cement plaster 0.4 to 10% 1250kg/m³ approx. lime plaster 0.8 to 10% 1450kg/m³...
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Measuring value wood moisture At delivery, the humimeter GF2 indicates the wood moisture. This means that no conversion from water content is necessary. On request, the device can also determine the water content. This has to be effected in the factory.
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Design GF2 plug-in electrodes (article no. 13011) conductance electronics 13141 incl. connecting cable 12881 measuring value evaluation calibration curve temperature measuring tips Information for measuring with GF2 plug-in electrodes: The plug-in electrodes are used determining water content of hardened and set building materials.
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Design GF2 pair of flat electrodes (article no. 13012) conductance electronics 13141 incl. connecting cable 12881 calibration curve temperature measuring value evaluation flat electrodes plug-in electrodes 13011 required! Information for measuring with GF2 flat electrodes: The flat electrodes are used for detecting moisture in expansion joints and edge joints.
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Design GF2 hand electrode (article no. 12847) conductance electronics 13141 incl. connecting cable 12881 calibration curve temperature measuring value evaluation measuring tips Information for measuring with GF2 hand electrode The hand electrode can be used for measuring different materials like plaster, gypsum or wood.
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Design GF2 hammer (article no. 12630) calibration curve temperature measuring value conductance electronics 13141 evaluation measuring tips Information for measuring with GF2 hammer hammer used for measuring the water content in timberwork, for example in the roof framework. With this hammer the delivered measuring tips can easily be deeply inserted into the wood.
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Information for measuring with GF2 CO sensor With this sensor resp. calibration curve the air quality can be measured. The measuring range is up to 5000ppm (parts per million). By putting on and tightening the sensor is activated. The CO sensor measures in intervals of 15 seconds.
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Design GF2 infrared temperature sensor (article no. 12513) infrared temperature sensor infrared temperature GF2 infrared temperature sensor Shows the current temperature of the object beamed by the sensor. The sensor has a 1:10 optics, which means a measuring area of 16 cm at a distance of 1 meter.
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Information for measuring air humidity and temperature IMPORTANT: temperature adjustment! To demonstrate the importance of temperature adjustment between measuring device and material to measure, the following chart shows the measuring error at a temperature difference of only 1°C / 1.8°F with various surrounding temperatures.
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This data can also be transmitted to the PC, where it can be filed and evaluated graphically. Design GF2 r.h. sensor (article no. 12514) pluggable r.h. sensor temperature...
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The determination of the dew point temperature can reveal an eventual creation of condensed water at an early stage. Design GF2 r.h. sensor with 2m connection cable (article no. 12032) relative...
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Design GF2 r.h. sensor with 2m cable and 0.3 meter stainless steel tube with steel sinter cap (article no. 12004) relative air humidity temperature r.h. sensor with 2m connection cable Information for measuring with GF2 r.h. sensor with 2m cable and 0.3 meter stainless steel tube with steel sinter cap (article...
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Design GF2 r.h. sensor with 1m cable and plastic sensor tube Ø8mm (article no. 13159) relative air humidity temperature r.h. sensor 8mm diameter Information for measuring with GF2 r.h. sensor with 1m cable and plastic sensor tube Ø8mm (article no. 13159) With the aid of these measuring bushes, the relative air humidity in the floor screed can be determined.
Sorts (calibration curves) GF2 air humidity and temperature sensor measuring calibration curve description unit range relative rel. humidity 0 to 100% air humidity °C -55 to +60°C dew point dew point resp. resp. °F -67 to 140°F wood equilibrium 2 to 30%...
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Technical data humimeter GF2 (article no. 12853) Building moisture sensor: Measuring depth 30 mm Minimum material thickness 30 mm Resolution 0.1% water content ; 0.1°C ; 0.3°F 0% to 100% water content Measuring range (dependent on the material) 0°C to +50°C Operating temperature -20°C to +60°C...
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GF2 Pair of plug-in electrodes (13011) Required accessory: 13141 Resolution of the display: 0.1% water content 0.5°C temperature Measuring range: dependent on the material Weight: GF2 Pair of flat electrodes (13012) Required accessory: 13141, 13011 Resolution of the display: 0.1% water content 0.5°C temperature...
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-10 to +60°C (resolution 0.1°C; ±0.3°C at 25°C) Temperature °F: 14 to 140°F (resolution 0.3°F; ±0.5°F at 77°F) Weight: GF2 r.h. sensor with 2m cable (12032) rel. air humidity: 0 to 100% r.h. (resolution 0.1%) Calibration: 10 to 90% (±2.0% r.h. at 25°C) Temperature °C:...
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GF2 r.h. sensor with 2m cable with stainless steel tube (12004) rel. air humidity: 0 to 100% r.h. (resolution 0.1%) Calibration: 10 to 90% (±2.0% r.h. at 25°C) Temperature °C: -10 to +60°C (resolution 0.1°C; ±0.3°C at 25°C) Temperature °F: 14 to 140°F...
!IMPORTANT! Please read Most common reasons for measuring errors • In case of dew on the measuring device resp. on the external sensor make sure to wait until they are completely dry again. Switching on resp. using a dewy device may lead to wrong measuring results and in the worst case may destroy the device.
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Most common reasons for measuring errors: infrared temperature • Wrong emission ratio: see chart on page 23 or other appropriate source • Polluted sensor: clean the sensor with light compressed air • Incorrect distance to the measuring object and therefore too large measuring spot •...
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