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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
______________________________________________________________________________________
U426_flowtherm Ex_B_e_171206
www.hoentzsch.com
1/34
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Related Manuals for Hontzsch flowtherm Ex
Summary of Contents for Hontzsch flowtherm Ex
- Page 1 _________________________________________________________________________________________________ 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 ______________________________________________________________________________________ U426_flowtherm Ex_B_e_171206 www.hoentzsch.com 1/34...
- Page 2 _________________________________________________________________________________________________ Overview and brief introduction of controls and connections Thermal sensors TA, TADi Always connect just one sensor at a time! Vane wheel sensors FA(R), FT, FA(R)Di or vortex sensors VA, VAT, VADi or temperature sensors Pt100 Connector socket cap Analog input 4-20 mA Close any connections not in use! Analog input 0-10 V...
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Page 3: Table Of Contents
General ....................... 30 8.2.2 Use in explosive atmospheres ................30 Technical Data ........................ 32 8.3.1 Elektrical Data ..................... 32 Installation ........................33 Maintenance ........................33 9 Declaration of conformity handheld unit flowtherm Ex Category 2G ..........34 ______________________________________________________________________________________ U426_flowtherm Ex_B_e_171206 www.hoentzsch.com 3/34... -
Page 4: General Information
Please check that everything listed in the Delivery Note / Technical Data Sheet is included in the delivery. 2.1 Description, type plate The flowtherm Ex is a multifunctional handheld unit with data logger for measuring and storing flow rate, flow velocity, temperature, pressure and other variables, insofar as they are measurable / deducible with connectable sensors: Outside the explosive atmosphere, this storage can be read out via USB socket. - Page 5 _________________________________________________________________________________________________ The following type plate is found on the back of the unit: Description of type plate specifications: Description see Section 2.1 Unit and serial no. Year of production Notified body Marking for use in Ex category 2G see General Informations Section 1 see Instruction Manual Ex Category 2G Section 8 see Declaration of conformity Section 9 EC-type examination certificate...
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Page 6: Technical Specifications
_________________________________________________________________________________________________ Technical Specifications 3.1 Operating conditions Ambient temperature of connection housing in service : -10 ... +50 °C Type of protection : IP65 : Intrinsic safety (ib) EN 60079-11 3.2 Housing and connection Type of protection : Intrinsic Safety (ib) EN 60079-11 and IP65 with battery compartment cover and sensor plug screwed on tightly, connector sockets not in use firmly capped, and USB connection cover tightly sealed Material... -
Page 7: Measurement Uncertainty
_________________________________________________________________________________________________ 3.4 Measurement uncertainty Input FA : +/- 1 Hz Input VA : +/- 1 Hz Input TA : +/- (0.7 % of measured value + 0.02 % FS) Temperature display : +/- 1 Kelvin Analog input 0-10 V : +/- (0.3 % of measured value + 0.02 % FS) Analog input 4-20 mA : +/- (0.3 % of measured value + 0.02 % FS) Input Pt100... -
Page 8: Wiring Diagrams For The 12-Pin Connector Plug
_________________________________________________________________________________________________ 4.2 Wiring diagrams for the 12-pin connector plug Electrical connection must be carried out according to the relevant 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) -
Page 9: Operation
_________________________________________________________________________________________________ Operation 5.1 Key functions Switch on: with the key (also symbol) hold down until text appears in the display. Switch off: with the key (also symbol) press the key for 1 second until the display goes off. Control keys: are keys with variable function, identified in the bottom row of the display depending on user level. - Page 10 _________________________________________________________________________________________________ Examples for key functions in the menus: Menu selection list: With up or down in the list; the selected element is highlighted. With a menu level higher (backwards). With a menu level lower (forwards) = select. With select = a menu level lower (forwards). With return to measured value display.
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Page 11: Setup Menu After Switch On
_________________________________________________________________________________________________ 5.2 Setup menu after switch on Menu Settings Sensor FA input Basic settings 5.3.1 Type 5.3.1.1 Range 5.3.1.2 Material 5.3.1.3 Directional sensing 5.3.1.4 Measurement settings 5.3.2 Medium 5.3.2.1 Section 5.3.2.2 Profile factor 5.3.2.3 Damping 5.3.2.4 Density correction 5.3.3 Operating conditions 5.3.4 Service temperature 5.3.4.1 Working pressure 5.3.4.2 Standard conditions 5.3.5... - Page 12 _________________________________________________________________________________________________ Menu Settings Counter 5.3.18 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...
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Page 13: Parameter Settings
_________________________________________________________________________________________________ Parameter settings Settings for vane wheel sensors FA: 5.3.1 FA - Basic settings Menu -> Settings -> Sensor -> FA input -> Basic settings The connected vane wheel sensor determines the parameter type, measuring range, material and direc- tional sensing to be set. 5.3.1.1 Type Setting the vane wheel type: This can be determined from the serial no. -
Page 14: Fa - Measurement Settings
_________________________________________________________________________________________________ 5.3.2 FA - Measurement settings Menu -> Settings -> Sensor -> FA Input -> Measurement settings The task to be carried out determines the parameter, medium, section and profile factor to be set. 5.3.2.1 Medium Setting the medium: Selecting pairs of values in the basic settings (5.3.1.1) has no impact on the measurement. Selection: = Gases, the characteristic for air/gases is applied = Liquids (Fluids), the characteristic for water/liquids is applied... -
Page 15: Fa - Density Correction
_________________________________________________________________________________________________ 5.3.2.4 Damping The damping rate set here affects the measured value display, if FA is selected as sensor in the display settings (5.3.19.1). Damping/s: enter the damping time of 01 to 99 seconds Example 10 seconds: after every second the arithmetical average of the last 10 seconds is displayed. 5.3.3 FA - Density correction Menu ->... -
Page 16: Fa- Operating Conditions
_________________________________________________________________________________________________ If the working medium density is not known, it can be determined with the formula: W-density = P / (R * T) where P = absolute pressure in Pa, R = specified gas constant in J/(kg*K), T = temperature in K. Here the specific gas constants of some gases: sample gas specific gas constant... -
Page 17: Va - Basic Settings
_________________________________________________________________________________________________ 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. -
Page 18: Va - Operating Conditions
_________________________________________________________________________________________________ Following profile factors are to be set for vortex sensors VA40 subject to the pipe diameter: Pipe ID PF for VA40 Pipe ID PF for VA40 in mm in mm 0.719 0.808 0.729 0.819 0.738 0.830 0.750 0.839 0.761 0.842 0.773 0.845... -
Page 19: Va - Pairs Of Values
_________________________________________________________________________________________________ 5.3.10.2 Standard atmospheric pressure Input value in hPa 5.3.10.3 Standard density Input value in kg/m³ depending on set standard conditions for calculating the mass flow rate. 5.3.11 VA – Pairs of values Menu -> Settings -> Sensor -> VA Input -> Pairs of values If pairs of values is selected (see 5.3.7.1), then the values stored here for determining the measured value are applied as a calibration curve. -
Page 20: Ta - Measurement Settings
_________________________________________________________________________________________________ 5.3.13 TA - Measurement settings Menu -> Settings -> Sensor -> TA Input -> Measurement settings The task to be carried out determines the parameter, section and profile factor to be set. 5.3.13.1 Section Setting the measuring section for measuring in pipelines for flow rate display: Selection: Circular = for pipes with circular section... -
Page 21: Ta - Standard Conditions
_________________________________________________________________________________________________ 5.3.14 TA – Standard conditions Menu -> Settings -> Sensor -> TA Input -> Standard conditions Standard conditions for Höntzsch are +21 °C (70 °F) and 1014 hPa (14.7 psia). Any standard condition can be set via the standard temperature and standard atmospheric pressure parameters. 5.3.14.1 Standard temperature Input value in °C... -
Page 22: Analog Input
_________________________________________________________________________________________________ Analog input settings: 5.3.17 Analog input Menu -> Settings -> Sensor -> Analog input Input: Selection: 4-20mA = current input 4-20 mA is selected 0-10V = voltage input 0-10 V is selected Designation: for each of the two inputs a designation of up to 13 digits for the sensor can be entered. - Page 23 _________________________________________________________________________________________________ 5.3.19.3 Row 1 Selection of which measured value is allocated to input channel 1 and displayed as Row 1. Selection: Date = actual date Time = actual time Unit = unit of selected flow sensor (see 5.3.19.6 and 5.3.19.7) Pt100 input = temperature sensor Pt100 20mA input...
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Page 24: Long-Term Measurement
_________________________________________________________________________________________________ 5.3.19.7 Units for TA sensors Selection of unit for measured value display and data logger Selection: N-m/s = standard flow velocity in meter / second N-ft/min = standard flow velocity in feet / minute N-m3/h = standard flow rate in m³/ hour calculated from flow velocity, measuring section (see 5.3.13.1) and standard conditions (5.3.14) N-l/s = standard flow rate in liter / second calculated from flow velocity,... - Page 25 _________________________________________________________________________________________________ LM Start mode is set: 1. press LM-START to start long-term measurement. The instantaneous value is displayed and the duration of measurement in seconds (e.g. S00010) is displayed continually. The bar above the control key description shows the progress of the measurement period in relation to the set interval. 2.
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Page 26: Device
5.3.22 Factory settings Menu -> Settings -> Factory settings The flowtherm Ex is reset to factory settings, all settings are lost if they have not been previously saved to a profile of their own (see 5.3.25) The factory settings are preset as those found in the shipping documents. The values of customer or application-specific measuring tasks as defined in the documents are taken into account. -
Page 27: Device Status
_________________________________________________________________________________________________ 5.3.23.1 On / Off Selection: Data logger: = On or Off Switch data logger on or off With data logger on the data for long-term measurement (see 5.3.20) is saved to the data logger The data logger can also be switched on from the measured value display with LOGGER (via Selection: Settings ->... -
Page 28: Profiles
_________________________________________________________________________________________________ Device profiles: 5.3.25 Profiles Menu -> Profiles The entire parameter inputs can be saved in the profiles under a freely definable name with up to 8 char- acters and can subsequently be reloaded. For example, all parameter inputs for a specific sensor can be saved to a profile or also to an appointed measuring point. -
Page 29: Troubleshooting
_________________________________________________________________________________________________ Troubleshooting Fault Cause Troubleshooting Device cannot be Dead batteries Insert new batteries switched on Faulty electronics Return to Höntzsch No measured value Sensor contaminated Clean according to instructions display no value Profile factor set at 0.000 Set profile factor to the corresponding value of nominal diameter and sensor type Unit setting (5.3.19.1) does Adjust the setting (5.3.19.1) to the connected... -
Page 30: Instruction Manual Category 2G Handheld Unit Flowtherm Ex
8.1 Apparatus Handheld unit flowtherm Ex for connecting vane wheel flow sensors FA in the design of probe and measur- ing tube, vortex flow sensors VA in the design of VA40 probe and measuring tube VA Di, thermal flow sen- sors TA in the design of TA10 probe and measuring tube TADi, as well as temperature sensors Pt100. - Page 31 The flowtherm Ex with Ex sensors is to be used only in areas in which the ambient temperature is between -10 °C and +50 °C. See also details on the type plate of the flowtherm Ex and sensors as well as the rele- vant technical documentation.
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Page 32: Technical Data
_________________________________________________________________________________________________ 8.3 Technical Data Explosion protection: The handheld unit flowtherm Ex is for use in explosive atmospheres requiring EPL (Equipment Protective Level) Gb (zone 1). All circuits are intrinsically safe with type of protection „ib“. X II 2G Ex ib IIC T4 Gb Marking: 8.3.1 Elektrical Data... -
Page 33: Installation
_________________________________________________________________________________________________ Installation The current European Specifications for Assembly, the recognised standards of good practice and this Instruction Manual apply. Maintenance Any maintenance and repair work is to be carried out solely by Höntzsch GmbH. ______________________________________________________________________________________ U426_flowtherm Ex_B_e_171206 www.hoentzsch.com 33/34... -
Page 34: Declaration Of Conformity Handheld Unit Flowtherm Ex Category 2G
D-71334 Waiblingen bearing sole responsibility, hereby declare that the product handheld unit flowtherm Ex with EC type examination certificate BVS 16 ATEX E 010 referred to by this declaration is in conformity with the following standards or normative documents: Provisions of the Directive Reference no.
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