testo 300 / testo 300 LL - Combustion Analyzer Instruction manual
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Contents Contents 1 About this document ...................................................................................7 1.1 Symbols .................................................................................................7 1.2 Warning notices......................................................................................7 2 3 4 5 6 Safety and disposal .....................................................................................8 Product-specific safety instructions ...........
Contents 8.2.5 9 Device settings ...................................................................... 29 8.2.5.1 Country version and language ............................. 29 8.2.5.2 Wi-Fi ..................................................................... 31 8.2.5.3 Date/Time............................................................. 32 8.2.5.4 My company address ........................................... 34 8.2.5.5 Bluetooth ..............................................................
Contents 9.6.5 Smoke Number ......................................................................50 9.6.6 Differential pressure...............................................................51 9.6.7 Differential temperature .........................................................51 9.6.8 O2 air (EU regulation) ............................................................52 9.6.9 Clock Meter ...........................................................................52 9.6.
1 About this document 1 About this document • The instruction manual is an integral part on the instrument. • Keep this documentation to hand so that you can refer to it when necessary. • Please read this instruction manual carefully and familiarize yourself with the product before use. • Hand this instruction manual on to any other users of the product. • Pay attention to the safety instructions and warning advice in order to prevent injury and damage to the product. 1.
2 Safety and disposal 2 Safety and disposal Take the testo information document into account (accompanies the product). 3 Product-specific safety instructions The condensate may be acidic. Risk of burns to the hands! CAUTION - Wear acid-resistant safety gloves, glasses and overalls to empty the condensate. • Make sure that the condensate has been fully emptied out of the condensate trap before the measuring instrument is stored for a long time.
5 Specifications 5 Specifications The testo 300 is a measuring instrument for flue gas analysis on applications, such as • residential, commercial and industrial applications (oil, gas, wood, coal) • low-temperature and condensing boilers • boilers, furnaces and gas heaters. Using the instrument, these systems can be adjusted and checked for applicable limit values. The instrument has been verified as a short-term measuring instrument and should not be used as a safety (alarm) device.
6 Product description 6 Product description 6.
6 Product description 6.2 Rear view 1 Attachment point for carrying strap 6.3 2 Magnets Connections 1 Probe connections for additional probes 2 Integrated ambient air probe 3 Flue gas socket 4 Differential pressure measurement connection There must be no more than one extension lead (0554 1202) connected between flue gas socket and flue gas probe.
6 Product description 6.4 Compact flue gas probe 1 Removable filter chamber with window and particle filter 2 Probe handle 6.
7 First steps 7 First steps Commissioning 7.1 Take the information in the testo information document (included with the product) into account for this. Power supply / Battery 7.2 The measuring instrument is supplied with a rechargeable battery. Fully charge the battery before use. If plugged in, the measuring instrument is automatically powered via the power supply. Only charge the battery at an ambient temperature of 32 to 95°F.
7 First steps 7.2.2 Power Supply (AC) operation 1 Connect the instrument plug of the power supply to the power supply socket on the measuring instrument. 2 Connect the power plug of the power supply to an outlet. The measuring instrument is powered via the power supply. If the instrument is turned off and a power plug is inserted, the charging process will start automatically.
7 First steps Description Zooming To make a section of the display larger or smaller, touch the display with two fingers and move them apart or together. Dragging You can move an element by touching it, holding it and dragging it to the required position. Example: Changing the display sequence of the measurement parameters. Keypad 7.4 Some functions require values (figures, numerical value, unit, characters) to be entered. The values are entered via a keypad.
7 First steps 7.5 Switch instrument on and off Current status Action Function Instrument off Press the button for a long time (> 3 s) Instrument is turned on. When the measuring instrument is started for the first time, the setup wizard guides you through the following setting parameters step by step: - Country version (basis of calculations) - Language - Wi-Fi - Date and Time - Own company address - E-mail account* - Product registration A tutorial can be started after the setup wizard.
7 First steps Connect probes 7.6 Flue gas probes Instrument is turned on. 1 Insert the connector plug into the flue gas socket and lock it in place by turning it slightly clockwise (bayonet lock). There must be no more than one extension line (0554 1201) between measuring instrument and flue gas probe. Temperature adapter Instrument is turned on. 1 Insert the connector plug of the probe into the probe socket. System recognizes the probe (info is displayed). When an external “ext.
8 Using the product 8 Using the product 8.
8 Using the product Further symbols on the user interface (without numbering) Refresh measurement One level back One level back One level back Cancel process Print values Save report Save and send report 8.1.1 Main measurement display - List The measurement units and the number and order of the measurement parameters displayed in the Main measurement display – List, can be changed, see section Configure measurement display.
8 Using the product 8.1.2 Main measurement display - Graphics In the Main measurement display - Graphics, the reading progression can be displayed as a line diagram. A maximum of 4 measurement parameters can be set at any one time. Only those measurement parameters can be displayed that are available in the Main measurement display - Graphics. The measurement parameters can be adjusted if necessary: Measurement view is enabled.
8 Using the product 8.1.3 Main measurement display - Hot Spot Search for hot spot: Measurement view is enabled. 1 Call up function: Hot Spot 2 Start search: 3 Perform zeroing. The measurement starts automatically after zeroing. 4 Align the flue gas probe in the flue so that the probe tip is in the hot spot (area of the highest flue gas temperature Max Tstack).
8 Using the product 8.2 Overview of main menu ( ) Main menu Description Customer / Measuring site Create, edit and delete customer and system information. Call up, delete and send measurements that have been performed (various formats possible). Call up and delete measurement report. For flawless operation of the measuring instrument, regular tightness testing of measurement systems (measuring instrument + flue gas probe) is recommended.
8 Using the product Main menu Description Device information Information - Device name - Serial number - Last service date - Free memory - Operating hours - Operating hours since last service - Software version - Firmware version - Firmware date Server information E-Mail Information about the available server Set up e-mail account and the e-mail account can be displayed.
8 Using the product The following functions are available: 1 Search 2 3 Create new Customer / Measuring site View/edit existing data about Customer / Measuring site Search 1 Tap Search operating field. Text cursor flashes. 2 Enter search test using the text editor. Via the search text, only the Customer / Measuring site is displayed that contains characteristics of the search text. 3 Confirm search result: press . Create new customer 1 Tap + New Customer / Measuring site.
8 Using the product 4 Confirm each input with . The Customer/Company Name input field is a required field and must be filled in. 5 Save. Customer is created. To be able to select a customer, at least one measuring site must be created and selected! Create new measuring site A customer is created. 1 Tap Measuring site button. 2 Tap + New measuring site operating field. Measuring site parameters menu is opened. 3 Enter data.
8 Using the product Edit measuring site Customer input screen is open. 1 Tap Measuring site button. 2 Select Measuring site. 3 Edit data. 4 Save. 8.2.2 Tests 1 Call up function: | Tests Tests menu is displayed. 2 Select customer. 3 Open measuring site. 4 Measurements for the selected customer / measuring site can be viewed and deleted . More options for selected measurement : Print readings Save report Save and send report The following information can be selected / added to create a report.
8 Using the product Category Description Format and print Select output format(s): - CSV (comma separated text file, e.g. for Microsoft® Excel) - PDF - ZIV 2.00 (XML file, complying with the regulations of the Guild of Master Chimney Sweeps in Germany). Customer data Enter / add contact details. Comments and pictures Enter comments and Add (opens the Gallery). Pictures are only included when output is in PDF format.
8 Using the product Delete report(s) 1 Touch required report for >2 sec. Report is marked. 2 If necessary, mark more reports by tapping. 3 Delete report(s): tap . Send report(s) 1 Touch report for >2 sec. Report is marked. 2 If necessary, mark more reports by tapping 3 Tap symbol. 4 Tap Send. 5 Send report by e-mail. Sort report(s) 1 Tap symbol. 2 Tap Settings. 3 Disable in ascending order under sort settings. 28 The latest reports are displayed first.
8 Using the product 8.2.4 Gas path check Regular tightness testing of measurement systems (measuring instrument + flue gas probe) is recommended. 1 Call up function: | Gas path check Gas path check starts automatically. 2 Place the black sealing cap on the tip of the flue gas probe. The pump flow is displayed. If the flow rate is less than 0.02 l/min, the gas paths are not leaking, and the measurement is ended. 3 Remove the sealing cap from the probe tip. 4 Back to the main menu: tap . 8.2.
8 Using the product Set country version 1 Tap Country version (basis of calculations) selection field. The available country versions are displayed. 2 Select country version. The query Change country version? is displayed. 3 Tap Next. Configuration of the country version can be ended by cancelling. The display goes back to Device Settings. The selected country version is configured (this may take a few minutes). The Device Settings menu is then displayed.
8 Using the product 8.2.5.2 Wi-Fi A radio link, such as a Wi-Fi, is not needed for performing measurements. Set up a connection to a Wi-Fi router or a Wi-Fi hotspot. The connection allows sending of measurement reports by e-mail. 1 Call up function: | Device Settings | Wi-Fi. 2 Tap Wi-Fi selection field. 3 Enable Wi-Fi: tap Off button or move grey point to the right. Instrument switches to On. The point changes to green. Display of all available Wi-Fi routers or Wi-Fi hotspots in the vicinity.
8 Using the product 8.2.5.3 Date/Time You can set the date, time and time zone in the Date/Time menu. You can choose between the 24 hr or AM/PM formats for the time. If the Wi-Fi has already been enabled, the Date/Time provided by the network is automatically set. 1 Call up function: | Device Settings | Date/Time. Various setting options are displayed.
8 Using the product Set Date/Time manually 1 Tap Date/Time. 2 Tap Autom. Date/Time. 3 Select Off. Autom. Date/Time is disabled. The pop-up window closes automatically. 4 Tap Set Date. 5 Select date via the calendar and confirm with OK.
8 Using the product 6 Tap Set Time. 7 Tap hour and set. 8 Tap minute, set and confirm with OK. 9 Back to the Device Settings menu: tap | | . | | . Set time zone manually 1 Tap Time Zone. 2 Tap Autom. Time Zone and disable ( ). 3 Tap Select time zone. 1 Select desired time zone. 2 Back to the Device Settings menu: tap 8.2.5.4 My company address Enter own company address. This information will be shown on the reports.
8 Using the product 8.2.5.5 Bluetooth Enable Bluetooth to print out or transmit measurement data. 1 Call up function: | Device Settings | Bluetooth® 2 Enable/disable Bluetooth by tapping the selection field. 3 Back to the Device Settings menu: Tap 8.2.5.6 . Hotspot Enable a hotspot to be able to transmit readings to software / industry software. The interface must also be available in the software / industry software.
8 Using the product 8.2.5.8 CO/NO sensor protect Limit values can be set to protect the CO/NO sensors against overload. Sensor protect is enabled if these are exceeded: • Fresh air dilution if exceeded (only for instruments with the "Dilution" option) • Shutdown if exceeded again When dilution is enabled, the CO and CO undiluted values are displayed in a blue font. A “*” is shown on the printout after the name of both values to indicate dilution.
8 Using the product Keypad appears. 3 Enter the value via the keypad. 4 Confirm each input with ✓. 5 Tap [OK]. 8.2.6 Sensor Diagnosis Overview of the sensors fitted and their condition. 1 Call up function: | Sensor Diagnosis 8.2.7 Error List Call up error reports. 1 Call up function: | Error List 8.2.8 Device Information Call up device information. 1 Call up function: | Device Information 8.2.9 Server Information Information about the available server.
8 Using the product 5 Entry of account name (optional) and name which appears with the sent e-mails. The inbox of the e-mail account is opened. If the system does not accept the e-mail address and password combination, but you are certain it is correct, check the following possible solutions: • Open e-mail client, e.g. gmail, on a PC and check e-mail reception. The provider may have sent a security e-mail which has to be confirmed before the e-mail account on the testo 300 is accepted.
8 Using the product Call up e-mail account 1 Call up function: | E-Mail Inbox menu is opened. 2 Create e-mail: tap . Compose menu and the keypad is opened. 3 Enter the e-mail address via the keypad. 4 Fill in subject and create text. If required, additional files can be attached to the e-mail using the paper clip symbol. 5 Send e-mail: tap . E-mail is sent. 8.2.11 My Apps Additional applications 1 Call up function: | My Apps Available Apps are displayed.
8 Using the product 8.2.12 Help 8.2.12.1 Please register your testo 300 1 Call up function: | Help | Please register your testo 300 Testo would like to offer you the best possible customer service. Register your instrument so that, when you call, our employees in Customer Service have all the information they need available at all times, so that they can quickly provide you with further assistance. Register at: https://testo.
8 Using the product 8.2.12.4 Update via USB You will find the current instrument software (firmware) on the Testo homepage www.testo.com under the product-specific downloads. 1 Call up function: | Help | Update via USB 2 Confirm info with OK. Firmware update is started. 3 Insert the connecting cable (0449 0134) into the USB port on the measuring instrument, then connect it to the PC. Your PC identifies the measuring instrument as a removable medium.
9 Performing the measurement 9 Performing the measurement 9.1 Prepare for measurement 1 Check the condensate trap fill level and if necessary empty trap, see Section 10.5 Empty condensate trap. 2 Check the particle filter of the flue gas probe for contamination and replace it in good time. If necessary, see Section 10.10 Check/replace particle filter. 9.
9 Performing the measurement Carry out gas path check 9.3 Regularly check the measurement system (measuring instrument + flue gas probe) for leaks. Too high an O2 value may be an indicator of a leaking measurement system. > 9.4 | Gas path check. Use of flue gas probe Check thermocouple before use > The thermocouple of the flue gas probe must not be touching the probe cage. Bend the thermocouple back if necessary. Align flue gas probe > The thermocouple must be freely exposed to the flue gas flow.
9 Performing the measurement 4 Align the flue gas probe in the flue gas duct so that the probe tip is in the hot spot (area of the highest flue gas temperature Max Tstack). Grey value/grey pointer: Display of current flue gas temperature Orange value/orange pointer: Display of maximum flue gas temperature > Reset values/pointer: 5 End hot spot search: tap 9.5 . Overview of measurement types ( Measurement types Flue Gas Analysis Draft CO Air free Smoke Number Differential pressure 44 .
9 Performing the measurement Measurement types Differential temperature O2 Air Clock Meter Oil flow calculation CO Ambient Pipe Commissioning Pressure Drop test Pretest 9.6 Overview of options ( ) Options Description Config. Measurem. display Add, delete ( ), measurement parameters, display sequences ( ) and edit units (click on Unit). Zeroing Gas Sensors Manually zeroing gas sensors. Menu is only available for measurements with gas sensors.
9 Performing the measurement 9.6.1 Configure measurement display 1 Call up function: | Options | Config. measurem. Display Edit Display menu is opened. 2 Measurement parameter - Add: tap Add to open selection list of measurement parameters. - Delete: tap on . - Edit unit: tap on the measurement parameter you want to edit. Tap on the required measurement unit in the selection list that has been opened. - Change position in the list: Press and hold and drag to the required position.
9 Performing the measurement Display Measurement parameter CO2 Carbon dioxide Eff net Efficiency without consideration of the heat value range Eff Efficiency with consideration of the calorific value range CO Carbon monoxide Draft Flue draft CO AF Undiluted carbon monoxide cCO Corrected CO for environmental regulation ExAir Excess Air CO amb Ambient carbon monoxide ΔT Differential temperature Dew Pt Flue gas dewpoint temperature Δp Differential pressure NO Nitrogen monoxide NOx
9 Performing the measurement 9.6.2 Flue Gas Analysis To maintain the measuring accuracy of the instrument, the correct fuel must be selected or configured. Tap (Fuels) > Select fuel. To achieve usable measurement results, the test time of a flue gas measurement should be at least 3 minutes and the measuring instrument should display stable readings. If a separate CO Air free measurement has not yet been performed, this value is calculated using the readings from the flue gas probe and continuously updated.
9 Performing the measurement For the draft measurement, the minus connection for differential pressure measurement must be free (ambient pressure, not closed). 3 Tap on the draft reading display 4 End measurement: tap or next to it. . 9.6.3 Draft-Measurement A flue gas probe must be connected. 1 Call up function: | Draft-Measurement The minus connection for differential pressure measurements must be clear (ambient pressure, not closed). 2 Start measurement: tap . Zeroing takes place.
9 Performing the measurement 9.6.4 CO Air free A multi-hole probe (0554 5762) must be connected. 1 Call up function: | CO Air free 2 Start measurement: tap . Reading is displayed. 3 End measurement: tap . 9.6.5 Smoke Number The Smoke Number and Oil depos. parameters are only available for oil fuels. The values calculated by a smoke tester can be entered. Edit values All values that can be modified have a dotted underlining. 1 Call up function: | Smoke Number 2 Tap required value.
9 Performing the measurement 9.6.6 Differential pressure WARNING Dangerous mixture of gases! Danger of explosion! - Make sure there are no leaks between the sampling point and the measuring instrument. - Do not smoke or use naked flames during the measurement. The gas pressure kit (0554 1203) must be connected.
9 Performing the measurement 9.6.8 O2 air (EU regulation) An O2 dual wall clearance probe (0632 1260) must be connected. 1 Call up function: | O2 air 2 Start measurement: tap . Reading is displayed. 4 End measurement: tap . 9.6.9 Clock Meter The function is only available if the chosen fuel is a gas. The gas burner capacity is calculated by means of the gas amount consumed. To this end, a gas amount is input, and its consumption read out at the gas meter.
9 Performing the measurement 9.6.10 Oil flow calculation The function is only available if the chosen fuel is an oil. This function is used to calculate the capacity of the burner from the set oil pressure and the oil flow rate of the oil nozzle. 1 Call up function: | Oil flow calculation 2 Set oil flow rate of the oil nozzle and oil pressure. The calculated oil burner energy is displayed (in BTU/h). Edit values All values that can be modified have a dotted underlining. 9.6.
9 Performing the measurement 9.6.12 Pipe Commissioning (EU regulation) The pipe commissioning (using air or inert gas such as CO2 or N2) is a tightness test for pipes, including fittings, but without gas appliances and the relevant regulating and safety devices. The pipe commissioning is performed after a load test has been successfully completed on newly laid gas pipes, or after renovation of existing gas pipes, and is used for the acceptance of these pipes.
9 Performing the measurement Stabilization time is finished. End stabilization time early: tap . Measuring time starts. The readings are automatically saved and displayed after the measurement has been completed. 5 The measuring value result can be assessed. 6 Conclude measurement: tap Next. 7 If applicable, repeat measurement: tap . 9.6.
9 Performing the measurement 2 Set parameters or enter values. All values that can be modified have a dotted underlining. Three circle diameters and three pipe lengths can be entered, which are then used to calculate three partial volumes. The pipe volume is calculated by adding these three partial volumes. 3 Pressurize the system. 4 Start stabilization time: tap . If applicable, follow instructions. Reading is displayed. Stabilization time is finished.
9 Performing the measurement 9.6.14 Pretest (EU regulation) > Insert the connector plug of the hose connection kit (0554 1203) into the flue gas socket and lock it in place by turning it slightly clockwise (bayonet fitting). Performing the measurement The pressure socket of the instrument must be free (depressurized, not closed). Pressure zeroing has been performed. 1 Call up function: | Pretest 2 Set parameters or enter values. All values that can be modified have a dotted underlining.
9 Performing the measurement 9.7 Overview of tests ( Tests Print values Save Finish test ) Feature Print out measuring values via Bluetooth®. Save measuring values, including selected customers / measuring sites. Saved measuring values can be retrieved in the main menu. Create, save and send measurement report, including - Own company data - Format and print - Customer data - Comments and pictures - Select measurements - Signature Saved reports can be retrieved in the main menu. 9.7.
9 Performing the measurement Print current readings The printer is turned on and within wireless range. 1 Tap . Tests menu is opened. 2 Tap Print values. The test is created and sent to the printer. The test is printed. 9.7.2 Save The measurement data from the last measurement performed of each measurement type are saved on the measuring instrument. Measurements that have been performed can be saved to back up the measurement data and for the subsequent creation of a report: 1 Tap .
9 Performing the measurement 2 Tap Finish test. Options for Tests are opened. 3 Enter/select log data: Category Description Format and print Select output format(s): - CSV (comma separated text file, e.g. for Microsoft® Excel), - PDF - ZIV (XML file, complying with the regulations of the ‘Federal Association of Chimney Sweeps in Germany’). Customer data Enter contact details Comments and pictures Enter comments and add pictures.
9 Performing the measurement 4 Print values: tap . To save readings: tap Save and send report: tap . .
10 Maintenance 10 Maintenance 10.1 Service Testo recommends an annual check of the testo 300 which can be performed by a service center authorized by Testo. Please contact Testo at http://www.testo.com for more information. Fr d 10.2 Calibration The measuring instrument is supplied with a calibration protocol as standard. Testo recommends calibration of the measuring instrument once every 12 months. This can be performed by Testo or another certified service center. Please contact Testo at http://www.
10 Maintenance 10.4 Clean the measuring instrument > If the housing of the measuring instrument is dirty, clean it with a damp cloth. Use distilled water, or alternatively mild solvents, such as isopropanol, to clean the flue gas analyzer. CAUTION Improper use of isopropanol! Irritation of the eyes and sensitive mucous membranes! Fumes have a slight narcotic effect! - If using isopropanol, please refer to the instruction leaflet for the product.
10 Maintenance CAUTION Weak mix of acids in the condensate! Minor injuries! - Avoid skin contact. - Make sure that the condensate does not run over the housing. CAUTION Condensate entering the gas path! Damage to sensors and flue gas pump! - Do not empty condensate trap while the flue gas pump is in operation. 1 Open the condensate outlet on the condensate trap. 2 Let the condensate drain out. 3 - Wipe off any drops still on the condensate outlet with a cloth and close the condensate outlet.
10 Maintenance 10.6 Open the measuring instrument Only open the measuring instrument when this is required for maintenance purposes (replacing gas sensors). The measuring instrument must not be connected to a mains socket via the mains unit. The measuring instrument must be turned off. When opening/assembling the instrument, take care not to lose any screws that have been removed. It is advisable to place a cloth on the work surface.
10 Maintenance 5 Place the instrument on its front again. 6 Remove the remaining four screws on the back of the instrument. 7 Lift off the back of the instrument. Assembly Perform in reverse order to assemble. Please note: - Lay hoses and lines in the guides intended for this purpose. - Make sure that hoses and lines do not get jammed. 10.7 Replace sensors A slot bridge (0192 1552) must be inserted in slots which are not equipped with a sensor.
10 Maintenance 10.7.1 Replace O2 sensor Measuring instrument is open, see Section Open measuring instrument. 1 Unlock retaining bracket and open out. 2 Remove faulty sensor from the slot. 3 Insert new sensor in the slot. Make sure that the socket on the sensor circuit board is correctly connected to the contact plug. 4 Close the retaining bracket with an audible "click". 5 Close the measuring instrument.
10 Maintenance 10.7.2 Change CO, CO H2 and NO sensor Measuring instrument is open, see Section Open measuring instrument. 1 Remove faulty sensor and hose connections from the slot. 2 Remove hose connections from the faulty sensor/bridge. For NO sensor: Remove auxiliary circuit board. Do not remove the auxiliary circuit board of the NO sensor until immediately before installation. Do not leave the sensor without auxiliary circuit board for longer than 15 minutes.
10 Maintenance 10.8 Clean modular flue gas probe Disconnect flue gas probe from the measuring instrument. 1 Release probe catch by pressing the key on the probe handle and remove probe module. 2 Blow compressed air through flue gas ducts of the probe module and probe handle (see illustration). Do not use a brush! 3 Fit probe module onto the probe handle and click into place. 10.9 Replace the probe module Disconnect the flue gas probe from the measuring instrument.
10 Maintenance Replace particle filter The filter chamber may contain condensate. This is not a malfunction and will not cause incorrect readings. 1 Open filter chamber: turn slightly counter-clockwise. 2 Remove filter chamber. 3 Remove filter plate and replace it with a new one (0554 3385). 4 Attach the filter chamber and lock it: turn slightly clockwise.
10 Maintenance 10.11 Replace thermocouple 1 Release probe catch by pressing the key on the probe handle and remove probe module. 2 Remove thermocouple plug-in head from the socket using a screwdriver and pull thermocouple out of the probe shaft. 3 Insert new thermocouple into the probe shaft until the plug-in head clicks into place. 4 Fit probe module onto the probe handle and click into place.
11 Technical data 11 Technical data Feature Value Temperature measuring instrument Draft measurement Pressure measurement O2 measurement CO measurement Option: CO measurement (H2-compensated) Option: CO measurement with activated fresh air dilution/measuring range extension Option: CO measurement (H2-compensated) with activated fresh air dilution/measuring range extension -40 to +2192°F -4.01 to +16.06 inH2O -40.15 to 80.29 inH2O 0 to 21 vol.
11 Technical data Feature Power supply Energy storage unit service life Lifetime energy storage Protection class Memory Display Weight Dimensions Certification Value Energy storage unit, USB mains unit 10 hrs > 1000 charging cycles IP 40 1 million measuring values 5.0" touch display, HD 1280x720 pixels Approx. 800 g L: 9.6 inch (including probe connection) H: 2.3 inch W: 3.86 inch TÜV-tested according to 1st German Federal Immission Control Ordinance (BImSchV) EN 50379, Parts 1-3 11.
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