{"title":"Handhelds and data loggers for strain gauge sensors and load cells","description":"\u003cp\u003e\u003cstrong\u003eHandhelds and data loggers for strain gauge sensors and load cells\u003c\/strong\u003e are a complete measuring chain in your hand: plug in the sensor, read the value, record it. No control cabinet, no laptop, no parameterization in an engineering tool required. Versions with integrated data loggers save the history with a time stamp on an SD card. Load cells and force transducers can be connected, as well as individual strain gauges, thanks to bridge completion for 120, 350, and 1000 ohms.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eWhy use handhelds or data loggers for strain gauge sensors and load cells instead of a display unit?\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003eWeighing indicators and transmitters are intended for fixed installation: they are mounted and scaled once and then run. A handheld is built for the opposite case, namely when the measuring point is different every day.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe technician takes the device and sensor along, connects, measures, documents, and packs up again. Consequently, other features count: battery operation, robust housing, quick scaling without a manual, peak value memory, and a display that is readable even in poor light.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eThe decisive difference: bridge completion\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003eMost weighing devices expect a complete strain gauge full bridge, i.e., a load cell. In practice on site, however, often only a single strain gauge is available, glued directly onto the component of interest.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eDevices with integrated bridge completion for 120, 350, and 1000 ohms accept exactly that: quarter bridges with standard strain gauge resistances, without you having to solder external completion resistors together. This turns any component into a measuring point, and the handheld becomes a real measuring instrument rather than just a display.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eOn request, we can apply the \u003ca href=\"\/en\/pages\/dehnungsmessstreifen-dms-applikation\"\u003estrain gauges\u003c\/a\u003e ourselves, whether glued or welded, and supply the matching device including scaling.\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003eData loggers: recording without a laptop\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003eVersions with an integrated data logger record the progression within the device to be read out later. This solves two tasks for which one would otherwise need a laptop on site.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eFirst, \u003cstrong\u003eunattended measurement\u003c\/strong\u003e: connect the device, let it run, and come back hours or days later. Second, \u003cstrong\u003edocumentation\u003c\/strong\u003e: instead of manually transcribed values, you get a file with a time stamp that can be added to the test report.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003eThe most common application: troubleshooting scales\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eIf a scale provides incorrect values, the question is always: sensor or electronics? With a handheld, you can measure the sensor's signal in mV\/V directly at the junction box and have the answer in two minutes. If there are several cells under a container, you can also identify the individual defective or drifting cell without emptying the system.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe same applies to commissioning: before spending hours parameterizing a system, check with the handheld whether the zero point and characteristic value of the cells are plausible.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003eFurther typical uses\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eAcceptance and load tests on hoists and structures. Testing of lifting gear, ropes, and guying. Mobile force measurements in service. Strain measurements on components to assess operational loads. Control measurements in quality assurance. Training and experimental setups, because a handheld works without infrastructure.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eFor some of these cases, a wireless system is the better choice, for example if the sensor is hanging on a crane hook or is moving. In that case, the handheld unit takes on the role of the receiver; take a look at our \u003ca href=\"\/en\/collections\/funk-messtechnik\"\u003ewireless measurement technology\u003c\/a\u003e. If you prefer the smartphone to be the display unit, \u003ca href=\"\/en\/collections\/bluetooth-messtechnik\"\u003eBluetooth measurement technology\u003c\/a\u003e is the more cost-effective option.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003eWhat you should look for when choosing\u003c\/h3\u003e\n\u003cul dir=\"ltr\"\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eBridge types and resistances\u003c\/strong\u003e, i.e., only full bridge or also quarter and half bridge with completion\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eSupply voltage\u003c\/strong\u003e and whether it matches the connected cell\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eResolution and measurement rate\u003c\/strong\u003e, suitable for static or fast measurement\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eField functions\u003c\/strong\u003e: tare, zeroing, peak value, minimum and maximum, hold function for fluctuating loads\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eScaling\u003c\/strong\u003e, either theoretically via the characteristic value and nominal load from the data sheet or in reality using test weights\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eMemory and export\u003c\/strong\u003e, how many measured values and in what format\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eBattery and runtime\u003c\/strong\u003e, replaceable or permanently installed\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eProtection class\u003c\/strong\u003e, because a mobile device will eventually be dropped and get wet\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003eWhere the limits lie\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eFor permanent connection to a controller, choose a \u003ca href=\"\/en\/collections\/waegetransmitter\"\u003eweighing transmitter\u003c\/a\u003e; for a fixed display at a weighing station, a \u003ca href=\"\/en\/collections\/waegeindikatoren\"\u003eweighing indicator\u003c\/a\u003e. For dynamic tests with many synchronous channels and high sampling rates, \u003ca href=\"\/en\/collections\/dms-messverstaerker\"\u003euniversal measuring amplifiers\u003c\/a\u003e are the appropriate class. Handhelds are not intended for legal-for-trade applications.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003eSensor, device, and calibration from a single source\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eYou can find the appropriate sensors under \u003ca href=\"\/en\/collections\/waegezellen-kraftaufnehmer\"\u003eload cells and force transducers\u003c\/a\u003e and in \u003ca href=\"\/en\/collections\/dehnungsmessung\"\u003estrain measurement\u003c\/a\u003e. If you order the device and sensor together, we will deliver the combination already matched so that you measure in kg or kN and not in mV\/V. On request, we can calibrate the measuring chain \u003ca href=\"\/en\/pages\/kalibrierung-waegezelle-kraftmessdose-kraftaufnehmer-iso17025\"\u003eaccording to ISO 17025\u003c\/a\u003e in our own laboratory.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eIf you don't need a device but rather a measurement result, we can perform the \u003ca href=\"\/en\/pages\/dienstleistungen-vorort-messungen\"\u003emeasurement directly in your facility\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"ehaa-handheld","title":"EHAA handheld","description":"\u003cp\u003eThe \u003cstrong\u003eEHAA\u003c\/strong\u003e is a professional handheld with a data logger for strain gauge transducers, type \u003cstrong\u003eAE-Star\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt measures force, weight, pressure, torque, and displacement with a single device and is suitable for measurements on test benches, in the field, and during service.\u003c\/p\u003e\n\u003cp\u003eThe analog input is designed for transducer signals of \u003cstrong\u003e±2 mV\/V\u003c\/strong\u003e and resolves with \u003cstrong\u003e24 bits\u003c\/strong\u003e into \u003cstrong\u003e±50,000 divisions\u003c\/strong\u003e. The sampling rate is between \u003cstrong\u003e5 and 4,800 Hz\u003c\/strong\u003e, the accuracy at the external input is \u003cstrong\u003e±0.01% FS\u003c\/strong\u003e, and the relative linearity error is \u003cstrong\u003e≤ ±0.01% FS\u003c\/strong\u003e. The transducer supply is \u003cstrong\u003e5 V DC\u003c\/strong\u003e, the input resistance for half and quarter bridges is \u003cstrong\u003e350 Ω or 700 Ω\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe data logger stores up to \u003cstrong\u003e130,000 readings\u003c\/strong\u003e, and up to \u003cstrong\u003e7 transducers\u003c\/strong\u003e are automatically recognized. The functions ZERO, HOLD, PEAK, and a digital filter are available; the backlit graphical display can be rotated by \u003cstrong\u003e180°\u003c\/strong\u003e. Data transfer and charging occur via the \u003cstrong\u003eUSB\u003c\/strong\u003e interface. The aluminum housing with silicone protective cover measures \u003cstrong\u003e176 x 79 x 32 mm\u003c\/strong\u003e, weighs approximately \u003cstrong\u003e0.7 kg\u003c\/strong\u003e, and is protected according to \u003cstrong\u003eIP40\u003c\/strong\u003e per EN 60529. The internal Li-ion battery achieves approximately \u003cstrong\u003e24 hours\u003c\/strong\u003e of operating time, and the operating temperature range extends from \u003cstrong\u003e+10 °C to +50 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eHandheld with data logger for strain gauge transducers\u003c\/li\u003e\n\n\u003cli\u003eInput signal ±2 mV\/V, 24-bit resolution, ±50,000 divisions\u003c\/li\u003e\n\n\u003cli\u003eSampling rate 5 to 4,800 Hz\u003c\/li\u003e\n\n\u003cli\u003eAccuracy ±0.01% FS at the external input\u003c\/li\u003e\n\n\u003cli\u003eData logger for up to 130,000 readings\u003c\/li\u003e\n\n\u003cli\u003eUp to 7 transducers are automatically recognized\u003c\/li\u003e\n\n\u003cli\u003eFunctions ZERO, HOLD, PEAK, and digital filter\u003c\/li\u003e\n\n\u003cli\u003eProtection class IP40, aluminum housing with silicone cover\u003c\/li\u003e\n\n\u003cli\u003eLi-ion battery for approx. 24 h, charging via USB\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":56812564545862,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/EHAA_AE-Star_titelbild.png?v=1788183072"},{"product_id":"ehoa-mobiler-messverstaerker-mit-datenlogger","title":"EHOA portable amplifier with data logger","description":"\u003cp\u003eThe \u003cstrong\u003eEHOA\u003c\/strong\u003e is a mobile measuring amplifier with data logger for strain gauge transducers in a handheld device, type \u003cstrong\u003eEOD\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is suitable for measurements on test setups, in the field and in service, where readings are recorded independently of the mains.\u003c\/p\u003e\n\u003cp\u003eFull, half and quarter bridges, potentiometric transducers and voltage signals from \u003cstrong\u003e0 to 10 V\u003c\/strong\u003e can be connected to the \u003cstrong\u003e15-pin Sub-D socket\u003c\/strong\u003e; bridge completion for \u003cstrong\u003e120, 350 and 1,000 Ω\u003c\/strong\u003e is built in. The input sensitivity is selectable in steps of \u003cstrong\u003e1.0 \/ 2.0 \/ 3.5 mV\/V\u003c\/strong\u003e, the bridge excitation is \u003cstrong\u003e2.5 or 5 V\u003c\/strong\u003e. The resolution is \u003cstrong\u003e24 bit\u003c\/strong\u003e, the accuracy class is \u003cstrong\u003e0.05 %\u003c\/strong\u003e and the relative linearity error is \u003cstrong\u003e0.02 % FS\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe data rate ranges from \u003cstrong\u003e0.3125 to 3,000 Hz\u003c\/strong\u003e, recording to the SD card is up to \u003cstrong\u003e1,000 Hz\u003c\/strong\u003e; six sensor configurations are available. The analog output outputs \u003cstrong\u003e-5 to 5 V\u003c\/strong\u003e, \u003cstrong\u003eUSB 2.0\u003c\/strong\u003e Full Speed serves as the interface. The aluminum housing measures \u003cstrong\u003e164 x 105 x 32 mm\u003c\/strong\u003e and is protected according to \u003cstrong\u003eIP51\u003c\/strong\u003e, optionally according to \u003cstrong\u003eIP65\u003c\/strong\u003e. The power supply is \u003cstrong\u003e10 to 29 V\u003c\/strong\u003e, the operating temperature range extends from \u003cstrong\u003e-20 °C to +70 °C\u003c\/strong\u003e. The scope of delivery includes an SD memory card, plug-in power supply, Sub-D mating connector, USB cable, software and manual.\u003c\/p\u003e\n\u003ch3\u003eAdvantages at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eMobile measuring amplifier with SD card data logger\u003c\/li\u003e\n\n\u003cli\u003eFull, half and quarter bridge, potentiometric and 0 to 10 V\u003c\/li\u003e\n\n\u003cli\u003eBridge completion for 120, 350 and 1,000 Ω built in\u003c\/li\u003e\n\n\u003cli\u003eResolution 24 bit, accuracy class 0.05 %\u003c\/li\u003e\n\n\u003cli\u003eData rate 0.3125 to 3,000 Hz, recording up to 1,000 Hz\u003c\/li\u003e\n\n\u003cli\u003eSix sensor configurations available\u003c\/li\u003e\n\n\u003cli\u003eReal-time clock and battery operation\u003c\/li\u003e\n\n\u003cli\u003eProtection class IP51, optionally IP65\u003c\/li\u003e\n\n\u003cli\u003eUSB 2.0 and analog output -5 to 5 V\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"octogon GmbH","offers":[{"title":"Default Title","offer_id":56812564578630,"sku":null,"price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/EHOA_EOD_titelbild.png?v=1788183073"},{"product_id":"ehob-handheld-fuer-waegezellen","title":"EHOB handheld for load cells","description":"\u003cp\u003e\u003cspan\u003eThe EHOB \u003cstrong\u003ehandheld\u003c\/strong\u003e combines measurement, curve, and peak value display in one handy device\u003c\/span\u003e\u003cspan\u003e. It accepts any Wheatstone full bridge—such as those from \u003cstrong\u003eload cells\u003c\/strong\u003e and force transducers—via an M12 socket and displays the measured value on a color LCD as a numerical value, live curve, or saved data record\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\u003ch3\u003eKey features at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eColor LCD display:\u003c\/b\u003e Equipped with a 3.5-inch color LCD with a resolution of 320x480 pixels\u003c\/span\u003e\u003cspan\u003e. The display offers various modes such as real-time data, live curves, historical graphs, and an overview of saved data records\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eHigh sampling rate \u0026amp; precision:\u003c\/b\u003e Supports full bridges from 88 ohms to 5 kOhm with a high measurement accuracy of 0.05%\u003c\/span\u003e\u003cspan\u003e. The sampling rate is adjustable in steps of 50, 200, 800, up to 3,200 Hz\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eStorage \u0026amp; alarm function:\u003c\/b\u003e Peak and valley values are automatically recorded, with up to 200 corresponding data records saved in the device\u003c\/span\u003e\u003cspan\u003e. Additionally, two alarm points can be set for upper\/lower limits or a 20 percent overload\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eMobility \u0026amp; power:\u003c\/b\u003e Powered by an integrated, rechargeable 3,200 mAh battery, which is conveniently charged via USB-C\u003c\/span\u003e\u003cspan\u003e. Weighing 290 g and featuring IP65 protection, the handy device is ideal for mobile use\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eSensor compatibility:\u003c\/b\u003e Wheatstone full bridge 88...5000 ohms\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eExcitation voltage:\u003c\/b\u003e 3 V DC\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eMeasuring range \u0026amp; units:\u003c\/b\u003e Measuring range of 4mV\/V\u003c\/span\u003e\u003cspan\u003e Supported units are lb, N, g, Nm, mV\/V, kN, and kg\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eInterfaces \u0026amp; protocols:\u003c\/b\u003e Equipped with USB-C and RS485\u003c\/span\u003e\u003cspan\u003e. Supports Modbus-RTU, ASCII active upload, and HEX custom upload protocols\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eConnection:\u003c\/b\u003e 5-pin M12 socket\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eOperating conditions:\u003c\/b\u003e Operating temperature of -20...+50°C \u003c\/span\u003e\u003cspan\u003e IP65 protection class\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e \u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eDimensions:\u003c\/b\u003e 132 mm width and 20 mm depth\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e","brand":"octogon Shop","offers":[{"title":"Default Title","offer_id":56812564611398,"sku":null,"price":540.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/files\/EHOB_EOE_-_EPE__octogon-EPE-solo_af44f493-50e9-4f30-a58c-e854be754607.png?v=1789021158"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5558\/6374\/collections\/Elektronik_-_Handheld.webp?v=1782471676","url":"https:\/\/octogon.org\/en\/collections\/handhelds-data-loggers-load-cells.oembed","provider":"octogon GmbH","version":"1.0","type":"link"}