Hontzsch flowtherm Ex Operating Instructions Manual Download Page 1

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U426_flowtherm Ex_B_e_171206

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Operating Instructions

flowtherm Ex

Software status from 1.05

Multifunctional handheld unit with data logger for measuring flow rate,

flow velocity, temperature, pressure and other variables

in explosive atmospheres

Summary of Contents for flowtherm Ex

Page 1: ...____________________________________________________________ U426_flowtherm Ex_B_e_171206 www hoentzsch com 1 34 Operating Instructions flowtherm Ex Software status from 1 05 Multifunctional handheld unit with data logger for measuring flow rate flow velocity temperature pressure and other variables in explosive atmospheres ...

Page 2: ...sensors VA VAT VADi or temperature sensors Pt100 Analog input 4 20 mA Analog input 0 10 V Connector socket cap Close any connections not in use Measured value display Input channel 1 name unit value Input channel 2 name unit value Input channel 3 name unit value Function keys Designation Function keys with variable functions depending on operation menu USB connection type B for connecting to PC or...

Page 3: ... Density correction 15 5 3 4 FA Operating conditions 16 5 3 5 FA Standard conditions 16 5 3 6 FA Pairs of values 16 5 3 7 VA Basic settings 17 5 3 8 VA Measurement settings 17 5 3 9 VA Operating conditions 18 5 3 10 VA Standard conditions 18 5 3 11 VA Pairs of values 19 5 3 12 TA Basic settings 19 5 3 13 TA Measurement settings 20 5 3 14 TA Standard conditions 21 5 3 15 TA Pairs of values 21 5 3 1...

Page 4: ...ove other sensors such as Pt100 if ordered accessories for sensors e g extension rod for FA sensor if ordered CD ROM with PC software HLOG II and USB cable optional adapter plug and USB cable optional various connection and extension cables connectors optional carrying case optional Please check that everything listed in the Delivery Note Technical Data Sheet is included in the delivery 2 1 Descri...

Page 5: ...al Informations Section 1 see Instruction Manual Ex Category 2G Section 8 see Declaration of conformity Section 9 6 EC type examination certificate 7 Operating conditions see General Informations Section 1 see Operating conditions Section 3 1 see Safety Precautions Section 8 2 8 USB connection see Electrical data Section 3 2 und 3 3 see Connector sockets page 2 see Safety Precautions Section 8 2 9...

Page 6: ...og inputs or additional sensors USB for data logger readout configuration and external power supply via PC or mains adapter 3 3 Electrical data Power supply via 4 alkaline manganese batteries exclusively DURACELL Simply MN1500 AA LR6 1 5V Open the battery compartment with a screw driver Always change all 4 batteries at the same time checking for correct polarity To close the compartment press it f...

Page 7: ...st be taken into consideration 4 Initial Operation Startup For installation and operation of the system especially in explosive atmospheres category 2G the national regulations currently in force the recognised standards of good practice and these Operating Instructions apply Always make sure that the connector sockets not in use are firmly capped the sensor plug is screwed on tightly and the USB ...

Page 8: ... wiring diagram Incorrect connection can cause serious damage to the electronics Wiring diagrams with view of solder contacts 4 2 1 Analog input 4 20 mA 2 wire system current for 12V supply A power supply 12V F power supply GND plug shell shielding 4 2 2 Analog input 4 20 mA 3 or 4 wire system current for 12V supply A power supply 12V B power supply GND_D F signal H signal GND_A plug shell shieldi...

Page 9: ...In measured value display view after switch on during measured value display the arrow keys have the following function and shift the display Definition whether the values from 1 2 or 3 input channels are displayed simultaneously Depending on selection the character size of the display value changes and is the display so set that only measured values from 1 or 2 input channels are displayed simult...

Page 10: ...u level lower forwards With return to measured value display With switch off Parameter value selection window With new selection element the selected element flashes here mn With select and save and return to selection list With return to measured value display without saving With return to selection list without saving With switch off Parameter value digit numeric text setting With change digit t...

Page 11: ...2 Standard conditions 5 3 5 Standard temperature 5 3 5 1 Standard pressure 5 3 5 2 Standard density 5 3 5 3 Pairs of values 5 3 6 VA input Basic settings 5 3 7 Type 5 3 7 1 Measurement settings 5 3 8 Section 5 3 8 1 Profile factor 5 3 8 2 Damping 5 3 8 3 Operating conditions 5 3 9 Service temperature 5 3 9 1 Working pressure 5 3 9 2 Standard conditions 5 3 10 Standard temperature 5 3 10 1 Standard...

Page 12: ...3 18 Reset 5 3 18 1 Decimals 5 3 18 2 Display 5 3 19 Sensor 5 3 19 1 Rows 5 3 19 2 Row 1 5 3 19 3 Row 2 5 3 19 4 Row 3 5 3 19 5 Long term measurement 5 3 20 Mode 5 3 20 1 Device 5 3 21 Factory settings 5 3 22 Data logger 5 3 23 Switching on off 5 3 23 1 View 5 3 23 2 Settings 5 3 23 3 Delete 5 3 23 4 Status 5 3 24 Profiles 5 3 25 Switch off 5 3 27 LM Start 5 3 26 Logger Switching on off 5 3 23 1 V...

Page 13: ... specifically matched to the measuring task based on up to 30 supporting points Input or changing the points see under 5 3 6 Distinctive feature of sensors with vane wheel types md3 and ms measuring tube These sensors are always supplied with a special calibration characteristic Therefore always select pairs of values For input or change see 5 3 6 pairs of values 5 3 1 2 Range Setting the vane whe...

Page 14: ...The profile factor PF specifies the ratio of mean flow velocity in the measuring section and the flow velocity measured from the sensor Requirements are centric sensor positioning non rotational inlet flow and adequately dimensioned input output sections See also Documents U117 and U205 Following profile factors are to be set for vane wheel cylinder probes ZS subject to pipe diameter Pipe ID in mm...

Page 15: ...ments arises from a medium density of 1 204 kg m calibration conditions The only slightly deviating actual starting value even with consid erably different working density of the medium in the actual application ensures in good approximation of the following actual starting value specified starting value x root of density during calibration working density of the medium The correction value is now...

Page 16: ... menu or determined with connected sensor 5 3 4 1 Service temperature Measured or entered unit in C 5 3 4 2 Working pressure Measured or entered unit in hPa 5 3 5 FA Standard conditions Menu Settings Sensor FA input Standard conditions Standard conditions for Höntzsch are 0 C 32 F and 1013 hPa 14 7 psia Any standard can be set via the standard temperature and standard pressure parameters 5 3 5 1 S...

Page 17: ... and modifies the basic characteristics KKZ enter as an 8 digit figure in which each digit has a 0 9 A F range hexadecimal 16 possible variables The actual KKZ can be found in the technical data sheet calibration certificate or directly on the sensor Pairs of values special calibration characteristic specifically matched to the measuring task based on up to 30 supporting points Entering or amendin...

Page 18: ...ed value and this value is approximate PF 1 000 must always be set for VADi measuring tubes calibrated with pairs of values 5 3 8 3 Damping The damping rate set here affects the measured value display if VA is selected as sensor in the display settings see 5 3 19 1 Damping s enter the damping time from 01 to 99 seconds Example 10 seconds after every second the arithmetical average from the last 10...

Page 19: ...be greater than the previous one Example for quantity 03 01 000 50m s 00010Hz 02 010 00m s 00350Hz 03 040 00m s 01770Hz If the frequency measured value is greater than in the last pair of values then the velocity value is calculated However this means that the measurement uncertainty increases as this value is then outside the calibrated range Settings for thermal sensors TA 5 3 12 TA Basic settin...

Page 20: ...t output sections See also Documents U232 and U234 Following profile factors are to be set for thermal flow sensors TA10 subject to the pipe diameter Pipe ID in mm PF for thermal sensors TA10 25 0 725 27 2 0 740 35 9 0 790 40 0 810 41 8 0 820 50 0 840 0 840 For measuring in larger free jet as well as larger ducts or measuring tubes with setting PF 1 000 the local punctual velocity will be displaye...

Page 21: ...s display and change of pairs of values A pair of values always consists of a velocity value in m s and a frequency value in Hz The condition being the pairs of values must be ever increasing i e the next velocity and frequency value must always be greater than the previous one Example for quantity 03 01 000 50m s 06000Hz 02 010 00m s 08350Hz 03 040 00m s 12770Hz If the frequency measured value is...

Page 22: ...ively Example 4 20 mA 900 1600 hPA Unit for each of the two inputs a unit of up to 5 digits for measured value display can be entered Example hPa unused digits are marked with an and are not shown in the display and data logger Counter settings 5 3 18 Counter Menu Settings Counter Saettings for the counter 5 3 18 1 Reset Resets counter to 0 5 3 18 2 Decimals Determines the number of decimal places...

Page 23: ...election of unit for measured value display and data logger Selection m s flow velocity in meter second ft min flow velocity in feed minute m3 h flow rate in m hour calculated flow velocity and measuring section FA 5 3 2 2 VA 5 3 8 1 l s flow rate in liter second calculated from flow velocity and measuring section FA 5 3 2 2 VA 5 3 8 1 l min flow rate in liter minute calculated from flow velocity ...

Page 24: ...measuring section see 5 3 13 1 and standard conditions 5 3 14 and the entered standard density 5 3 14 3 Long term measurement settings 5 3 20 Long term measurement Menu Settings Long term measurement 5 3 20 1 Mode Setting measuring mode for long term measurement Selection Start Stop Start Stop mode for long term measurement Start Start mode long term measurement also enter interval s duration seco...

Page 25: ...ds or more the display can be switched to instantaneous value by pressing CURR Pressing AVG again the frozen average of the previous interval is shown again 2 if LM AUTO is pressed before the set number of long term measurement transmissions is reached then long term measurement is aborted and awaits a new input as under 1 If LM AUTO is not activated the measurement period runs to the end of the s...

Page 26: ... The values of customer or application specific measuring tasks as defined in the documents are taken into account Before restoring the factory settings the following confirmation prompt appears Restor factory setting Confirm with Cancel with or MESS Before resetting to factory settings save the actual settings to a profile see 5 3 25 otherwise they will be lost Cancelling the factory settings doe...

Page 27: ...ay 5 3 23 3 Settings Designation freely adjustable measuring point designation with max 8 digits for all subsequently saved data logger values until entering a new measuring point designation 5 3 23 4 Delete Delete the contents of the data logger Before deleting a prompt appears Delete data logger Confirm with Cancel with or MESS All the values saved to the data logger are deleted accordingly Befo...

Page 28: ...rent profiles can be saved Available profile storage locations are marked with an after the profile name Profiles cannot be deleted but may be overwritten Returning to the factory settings see 5 3 22 has no impact on the saved profiles Selection Load loading a saved profile by selecting from the list Save saving the active parameter settings to a profile by selecting from the list in an available ...

Page 29: ...ngs according to details in the Technical Data Sheet Sensor contaminated Clean according to instructions Profile factor set too low Set profile factor to the corresponding value of nominal diameter and sensor type Input output section too short Change sensor position improve flow conditions with a flow straightener Rotational flow Reposition sensor in flow direction use flow straightener Vortex VA...

Page 30: ...category 1G or 1 2G apparatus are required and in areas in which category 1D category 2D or category 3D apparatus are required 8 2 Safety Precautions 8 2 1 General Hazard risks modifications to the device by the customer handling the devices outside the specified operating conditions handling the sensors outside the specified operating conditions improper use of the device Danger when installing t...

Page 31: ...l as the rele vant technical documentation Category 2G apparatus listed under 8 1 is to be used solely in areas in which the temperature of the measured gas the ambient temperature and the maximum permissible overpressure stated on the type plate is not exceeded In explosive atmospheres category 2G however the equipment may only be used in media of temperature class T4 Prevention of voltage hazard...

Page 32: ...V I0 100 mA P0 100 mW Lext 100 µH Cext 10 µF Safety relevant maximum values for connection to the 8 pin interface VA40 Pin 1 2 8 U0 8 7 V I0 35 mA P0 224 mW Lext 100 µH Cext 2 9 µF FA 47k Pin 1 2 U0 7 2 V I0 2 mA P0 3 mW Lext 100 µH Cext 10 µF FAR 47k Pin 1 2 7 U0 7 2 V I0 3 mA P0 6 mW Lext 100 µH Cext 10 µF FA HNV Pin 1 2 8 U0 8 7 V I0 35 mA P0 224 mW Lext 100 µH Cext 2 9 µF FAR HNV 2 Pin 1 2 7 8...

Page 33: ..._________________________________________________ U426_flowtherm Ex_B_e_171206 www hoentzsch com 33 34 8 4 Installation The current European Specifications for Assembly the recognised standards of good practice and this Instruction Manual apply 8 5 Maintenance Any maintenance and repair work is to be carried out solely by Höntzsch GmbH ...

Page 34: ...by this declaration is in conformity with the following standards or normative documents Provisions of the Directive Reference no and date of issue 2014 34 EU Equipment and Protective Systems in potentially explosive atmospheres EN 60079 0 2012 A11 2013 EN 60079 11 2012 2014 30 EU Electromagnetic Compatibility EN 61000 6 4 2007 A1 2011 EN 61000 6 2 2006 Corrigendum 1 2011 2011 65 EU Hazardous Subs...

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