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4.3

W

IRING

Wiring in non-Ex environment

1 2 3 4 5 6

1 2 3 4 5 6

VF04-402-4M-200-00

4…20 mA

I- I+

mV

Test

10 mV 1 mA

1
2

Remove cable entry plug(s) and fit cable gland(s) as required.
Detach the cover of the unit and the VGF-display, if fitted. (See pg. 35)

3 Guide the cable into the housing through the cable gland
4 Remove a 4 mm length of insulation from the wires and

cut away the free part of the shielding.

5 Connect the wires of the current loop to terminals 2 and 3 (any polarity).
6

7

Pull back the cable till a 10 cm cable length remains in the housing
behind the cable gland.
Tighten the cable gland on to the cable.
Check the connection of wires and the tightness of the cable gland.
Re-fit the VGF-display if applicable.

8 Arrange the wires in the housing and screw the cover on the housing.

The 500V AC insulation test should not be performed on the instrument
because of the overvoltage protection inside the electronics.

Connection to the EP network (grounding).

Screw type terminal (EP) on the housing max. cable cross-section:
4 mm².
The housing of the VF04 must be grounded. Grounding resistance R < 1
Ohm
The shield of the signal cable should be grounded only at the control
room.
Avoid coupling of electromagnetic noise by placing the signal cable away
from power-current cables.

Electrostatic discharge (E.S.D.)
VF04 2-wire non-Ex and Ex instrument electronics are shielded up to 4 kV against E.S.D.
Note: E.S.D. cannot be fully solved by the VF04 2-wire internal E.S.D. protection.
It is the customer’s responsibility to avoid E.S.D. by grounding the tank, product and probe installation.

1

D

ANGER OF INJURY

The probe may accumulate an electrostatic discharge during operation;
earth the probe by pushing it against tank wall with a suitably isolated tool
just before touching it to avoid receiving a shock.

2 Earth the entry pipe and product.

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Содержание VF04

Страница 1: ... TRANSMITTERS USER AND PROGRAMMING MANUAL Hycontrol Ltd Larchwood House Orchard Street Redditch Worcestershire UK B98 7DP Tel 44 0 1527 406800 Fax 44 0 1527 406810 Email sales hycontrol com Web www hycontrol com Company registered in England No 1755684 ...

Страница 2: ...2 51 GUIDED MICROWAVE LEVEL MEASUREMENT ...

Страница 3: ...are 20 5 1 1 HyView installation and operation 20 5 1 2 Summary of Parameter functions In HyView 24 5 1 3 Configuration configuration examples 29 5 2 Programming with VGF DISPLAY display unit 35 5 2 1 VGF DISPLAY display unit 35 5 2 2 VF04 s behaviour in manual programming mode 36 5 2 3 Manual programming requires a VGF DISPLAY module 36 5 3 Programming with HART handheld HHC Communicator 37 5 3 1...

Страница 4: ...lectrically conductive rod cable or coaxial probe with a known propagation speed the speed of light As the pulse reaches the surface of the medium or interface of two liquids altered dielectric constant r a part of it is reflected back to the electronic module The size of the reflected signal depends on the dielectric constant r difference of the mediums or layers When measuring to the surface of ...

Страница 5: ...L HOUSING VF04 6 Input data Measured values Between the reference point of the unit and reflection plane material surface distance level and volume Measuring range Depends on probe type and the properties of the measured medium see Technical data of the probes table Probe types and technical data Coaxial twin cable mono cable twin rod and mono rod probes see Technical data of the probes table Hous...

Страница 6: ...TEMPERATURE VF04H 4 6Ex VF04P 4 6Ex Ex ia IIB Ex ia IIC Ex ia IIIC Ex ta tb IIIC Maximum permissible medium temperature at the antenna 80 C 90 C 100 C 180 C 80 C 90 C 100 C 180 C Maximum permissible surface temperature at the process connection 75 C 90 C 100 C 175 C 75 C 90 C 100 C 175 C Temperature class T6 T5 T4 T3 T85 C T100 C T110 C T180 C See Appendix 1 ATEX Safety Guidelines for further ATEX...

Страница 7: ...3 m 0 m Min distance to objects 200 mm 200 mm 0 mm Min medium r 1 8 1 8 1 4 Process connection 11 2 BSP 11 2 BSP 1 BSP 1 NPT 11 2 NPT 11 2 NPT 11 2 BSP 11 2 NPT Probe material 316 316Ti 316Ti Nominal diameter of probe 4 mm 8 mm 28 mm Mass 0 24 kg m 0 8 kg m 1 3 kg m Separator material PFA welded on the cable PTFE GF25 if length 1 5m PTFE If length 1 5m Weight dimensions 40 x 80 mm Weight material ...

Страница 8: ...Ti PP Nominal diameter of the probe 6 mm 6 mm 6 mm 6 mm 12 mm 16 mm Mass 0 16 kg m 0 16 kg m 0 16 kg m 0 16 kg m 0 5 kg m 0 6 kg m Fillet and weight coating material PFA PFA PP Weight dimensions 25 x 100 mm 25 x 100 mm 25 x 100 mm 30 x 183 mm Weight material 316Ti 316Ti 316Ti 316Ti Max medium temp 150 C 150 C 150 C 150 C 150 C 60 C MEDIUM TEMPERATURE TABLE MEDIUM PRESSURE DIAGRAM TYPE FLANGE TEMPE...

Страница 9: ...F04TQ VF04TI 1 Housing 2 Cable gland 3 High temp connection 4 Mono cable probe 5 Weight 6 Twin cable probe 7 Twin cable separator 8 Twin rod separator 9 Twin rod probe 10 Mono rod probe 11 Grounding screw 12 Process connection 13 Coaxial probe ...

Страница 10: ...closure of the unit must be connected to the EP Equipotential circuit 3 5 MAINTENANCE AND REPAIR VF04 does not require maintenance on a regular basis In some very rare instances however the probe may need cleaning to remove deposited material This must be carried out gently without damaging the probe Repairs during or after the warranty period are carried out exclusively at the Manufacturer The eq...

Страница 11: ...ft the instrument by its probe Caution The probe is a critical instrument component Do not damage Handle with care Avoiding blows avoid hard blows jolts impacts etc Caution fragile electronics Avoid bending single rod and coaxial probes Support the probe to avoid bending Avoid cable kinks and fraying Do not coil the cable less than 400 mm or 16 in diameter Cable kinks or fraying will cause measure...

Страница 12: ...st and most economical way is to mount the VF04 2 wire directly on the tank with the 1 1 BSP or 1 1 NPT threaded connection Nozzle height Do not fit a nozzle longer than its diameter especially for single probes and powder applications h Ød where h nozzle height and d nozzle diameter Contact HYCONTROL if this relationship cannot be respected Nozzles penetrating into tank Caution Do not use nozzles...

Страница 13: ...roof deformation 6 Sediment Probes entanglement straightness and tank bottom clearance Cable probes must be straight once inserted into the tank They must also be kept away from other objects e g mixers to avoid entanglement In order to maintain the instrument s operating characteristics it is recommended to avoid touching the tank bottom with the counterweights for cable probes or probe end other...

Страница 14: ...tromagnetic protection for an accurate measurement Use a sunshade if the unit is exposed to direct sunlight Fastening the probe to the tank bottom Flexible probes can be fastened with a chuck ring turnbuckle or similar fastening device to the tank bottom Shortening cable probes If required the cable probe can be shortened but this applies only when used in liquids Procedure 1 Detach socket M6x10 I...

Страница 15: ...l avoid damage due to bending and traction during emptying Traction load is dependent upon the height and shape of the tank product particle size density and the rate at which the tank is emptied The table below gives the load up to which cable probes will hold Probe type Material Probe Length 6 m Probe Length 12 m Probe Length 24 m Mono cable Ø8 mm max load 3 0 T Cement 0 6 T 1 2 T 2 4 T Fly ash ...

Страница 16: ...ion test should not be performed on the instrument because of the overvoltage protection inside the electronics Connection to the EP network grounding Screw type terminal EP on the housing max cable cross section 4 mm The housing of the VF04 must be grounded Grounding resistance R 1 Ohm The shield of the signal cable should be grounded only at the control room Avoid coupling of electromagnetic noi...

Страница 17: ...mA At 4mA U power minimum 4 4 mA x load impedance Uinput minimum 4 U power minimum 4 4 mA x 250 Ohm 18 V 1 V 18 V 19 V At a load impedance of 250 Ohm a power supply voltage of 19 V is sufficient to energize the current device range of 4 to 20 mA Hazardous duty version Refer to pg 50 for ATEX Safety Guidelines Connect the wires of the current loop to terminals 2 and 3 any polarity The intrinsically...

Страница 18: ...d Ex repeater must be HART compatible so that it can be operated with the HyView communication software or the HART communicator The HART adapter should be connected to the intrinsically safe input of the Ex repeater The units with plastic coating can only be used in IIB gas class hazardous area RA non area Ex Ex area VF04 2 wire mA L Ex ia 4 20mA Ex ia ...

Страница 19: ... be allowed once the unit is connected and the power is switched on If the probe length has been shortened since delivery please refer to section 5 1 2 Summary of Parameter Functions user function 1 1 6 Probe length to modify configured probe length 4 5 AVAILABLE USER INTERFACES Programming of VF04 can be done using the following instruments accessories HyView software Accessory shipped with the i...

Страница 20: ... transmitters which use standard HART communication Electrical connections connect the HART adapter can be ordered separately through a load impedance of max 350 Ohm to a serial RS232 port of the PC In hazardous duty systems a HART capable Ex repeater must be inserted in the loop before the interface The HART adapter should be connected to the intrinsically safe input of the Ex repeater Installing...

Страница 21: ...d Network Click Network from the menu then click the Add Network button Choose the communication port Click the Ok button Click the Detect button to start the device selection on the selected communication port ...

Страница 22: ...ning network window appears when the detection starts To select the detected devices tick the checkbox and click Device settings button Parameter reading is in progress Device has been detected and settings are being read ...

Страница 23: ...23 51 Settings have been read ...

Страница 24: ...oint HART the FSK signal is superimposed onto the current loop For a multidrop bus the current output is fixed at a constant 4 mA and up to 15 HART devices can be operated 1 6 2 Polling Address Addresses from 0 to 15 With this function every device connected to a bus is assigned an address between 0 and 15 HART protocol If several devices are connected to a digital bus each device must be assigned...

Страница 25: ...1 max Function 1 5 1 Detection delay and Function 1 7 2 Input table In addition the displayed value will use the selected unit mm 1 2 6 Volume unit Select m l US Gal ft bbl m h ft h kg metric tonnes or tons US Unit for conversion values volume table The selected unit is only used to display the conversion value from the strapping table The unit selected here is also valid for the following functio...

Страница 26: ... values given in Section 5 2 3 The current output can t go inside the dead zone The output unit is set via Function 1 2 4 Length Unit Warning Critical Parameter See Minimum measuring distance Technical data of the probes 1 1 6 Probe length Minimum 100 mm Maximum 24 000 mm Set probe length 100mm This value should be modified when the probe has been replaced or shortened cable probes The output unit...

Страница 27: ... Function 1 3 3 Scale I min up to tank height or the maximum volume table value Input the upper range value corresponding to 20mA The value of this parameter must always be lower than or equal to the value selected under Function 1 1 1 Tank height or the maximum volume table value higher than the value selected under Function 1 3 3 Scale I1 min otherwise an error message will appear during paramet...

Страница 28: ...IZATION SETTINGS Function Input Range Description 1 1 3 Damping Time constant 1 100 s The time constant allows filtering of possible signal fluctuations when the product surface is turbulent 5 s 5 1 2 6 VOLUME LINEARIZATION SETTINGS ...

Страница 29: ...t are listed below Functions Definition HyView HART 1 1 1 2 1 1 1 Tank Height 1 1 2 2 1 1 4 Dead zone 1 5 1 2 1 5 3 Detection delay 1 3 1 4 2 1 3 1 4 Current Output 1 7 0 2 1 7 0 Volume table For volume measurements Example procedures are given on the following pages Each procedure is given in a series of steps in table form and is according to the HyView Configuration parameter list Please refer ...

Страница 30: ...t field for Function 1 1 1 Tank height This field currently reads 10000 mm 4 Type in the new value 9000 5 Save the new configuration to disk by clicking on Save to disk and download it onto the VF04 2 wire using the Send to button n a 6 Press close to exit the configuration menu Tank status screen displayed level now reads 5750 mm Dead zone configuration HyView function 1 1 2 HART Function 2 1 1 4...

Страница 31: ...l need to be created using the HyView program or the HART communicator The strapping table assigns defined volumes to the various levels In the case of non symmetrical tanks e g tanks with dished bottom the accuracy of volumetric measurement will depend on the number of entered level volume pairs The maximum number of pairs points that can be set is 20 The volume is linearly determined interpolate...

Страница 32: ... See table below Input table Point Level Volume 1 0 mm 0 0 m 2 200 mm 0 5 m 3 750 mm 1 0 m 4 1000 mm 1 5 m 5 5600 mm 16 8 m Max level tank height dead zone 6000 mm 400 mm or 19 69 ft 1 31 ft 5600 mm or 18 37 ft equivalent to a volume of 16 80 m or 593 3 ft Note The level can effectively be measured between 200 mm or 8 and 5600 mm or 18 ft When the product level drops below the tip of the probe the...

Страница 33: ...st set of values and click ok Reselect Add new item and enter second value Repeat adding values until all values are entered After table is complete press the send button to transfer the information to the instrument ...

Страница 34: ... Step Action Data entered value selected 1 Click on Outputs menu n a 2 Go to user function 1 3 1 Current 1 item to select measurement function Volume 3 Go to user function 1 3 2 Current 1 range to set fault status 4 20 mA 4 Go to user function 1 3 3 Scale I1 min to enter volume value for the minimum output 4 mA 0 50 m 5 Go to user function 1 3 3 Scale I1 max to enter volume value for the maximum o...

Страница 35: ...vigation in the menu can be done with E buttons 5 2 1 VGF DISPLAY DISPLAY UNIT Display 64x128 Dot matrix LCD glyphs units and bargraph Ambient temperature 20 C 60 C Housing material PBT fiberglass plastic DuPont VGF DISPLAY is a plug in LCD display and programming module Warning The display of the VGF DISPLAY is based on LCD technology do not expose the VGF DISPLAY to continuous direct sunlight to...

Страница 36: ... the external HART master device HART response code 32 Device is busy 5 2 3 MANUAL PROGRAMMING REQUIRES A VGF DISPLAY MODULE The menu structure is similar to the HyView parameter structure Main menu Sub menu HyView param ID BASIC SETUP TANK HEIGHT 1 1 1 DEAD ZONE 1 1 2 CLOSE END BLOCKING 1 5 1 DAMPING TIME 1 1 3 PROBE LENGTH 1 1 6 OUTPUT SETUP CURRENT MODE 1 3 1 FAILURE CURRENT 1 3 2 CURRENT MIN 1...

Страница 37: ...ur HHC manual for wiring instructions when in an explosive atmosphere Displaying readings Use the UP and DOWN arrows to move to the correct line and then select with the RIGHT Arrow 1 HART Communicator 1 Offline 2 Online 3 Frequency Device 4 Utility 2 Online 1 Process Var 2 Config Test 3 Access Rights 4 Watch status 5 HART Variables SAVE F1 F2 F3 F4 F1 F2 F3 F4 Main menu Online menu 3 Process Var ...

Страница 38: ...ecise or reliable Measurement may not be precise in an area less than this recommended value depending on the probe type Warning Critical Parameter See Minimal measuring distance Technical data of the probes 2 1 1 5 SENSOR INFO 2 1 1 5 1 Sensor upper limit Probe length Read only Menu Upper sensor limit 2 1 1 5 2 Sensor lower limit 0 Read only Menu Lower sensor limit 2 1 1 5 3 Sensor min span 1 mm ...

Страница 39: ... of the parameter 2 1 3 1 chosen As per order 2 1 3 5 SCALE I max 20 mA Enter Scale I min to tank height Input the upper range value corresponding to 20 mA depending of the parameter 2 1 3 1 chosen As per order Function Input Range Description 2 1 4 0 USER DATA 2 1 4 1 TAG 00000 01 Tag number of device 2 1 4 2 SERIAL NUMBER Read only menu Each device has its own serial number 2 1 4 3 FRENCH COMMIS...

Страница 40: ...this latter is connected on a HART Multidrop networks The current output drifts to 4 mA 0 4 20 mA output current active 1 15 in multidrop mode 0 2 1 7 0 STRAP TABLE 2 1 7 1 VOLUME UNIT Select m3 l US Gal Ft3 bbl M3 h Ft3 h kg Metric Tons US Tons Unit for conversion values volume table The selected unit is used to define the strapping table values Litre l 2 1 7 2 INPUT TABLE 0 to 20 points This fun...

Страница 41: ...tion 5 8 Descriptor Function 5 11 Tag H P X Space 0 8 A I Q Y 1 9 B J R Z 2 C K S 3 D L T 4 E M U 5 F N V 6 G O W _ 7 5 4 VF04 2 WIRE T D R METER CHARACTERISTICS This subsection explains the four principle configurations for setting up a measurement scale and what the user should be aware of in each case what happens when the tank is full or empty what is the level threshold and how to modify it a...

Страница 42: ...was lost Use HyView Marker diagram display to follow the measurement status of the instrument 1 2 3 4 Zone 1 Dead and detection delay zones Marker Tank full and Level lost is displayed when the product enters the dead zone and no reflection is found This will also occur once the level reflection is within the detection delay zone The instrument assumes the tank is full and displays the maximum lev...

Страница 43: ...when the instrument is searching for the product level A strong return signal will be given a low gain i e Gain 0 or a small amplification However if the signal is very weak then a Gain of 3 i e high signal amplification is given Example of signal amplification Useable signal zone Useable signal zone Gain 2 Useable signal zone Unusable signal increase gain Unusable signal increase gain Signal with...

Страница 44: ...Initial pulse 2 Flange reflection 3 Level signal 4 Interference signal 5 Threshold In the diagram above it can be seen that the level of the threshold is not constant 400 mV at 1000 mm or 3 3 ft and only 250 mV at 10000 mm or 33 ft No attenuation is required at a probe length 3000 mm or 10 ft The form of the threshold is dependent on attenuation and is automatically adjusted by the device over the...

Страница 45: ...be with gain 1 Rod or cable probe with gain 2 Emitted pulse Level signal Emitted pulse Level signal Coaxial probe with gain 1 Coaxial probe with gain 2 The signal from coaxial probes does not include the flange reflection due to the mechanical setup which does not produce any change in impedance at the flange The amplitude of reflection from the product surface increases as the level rises and dec...

Страница 46: ...dure example where the level measured is too low compared to true level Read off displayed peak amplitude using the oscilloscope function modify level threshold value Step Action Data entered value displayed 1 Execute HyView Connect to the instrument as described in section 5 1 n a 2 Select Measurement optimization screen n a 3 The top of the window gives the distance peak amplitude in volts and g...

Страница 47: ...ored This mode may be used with all probe types Example application 1 level measurement of oil 1 liquid in the tank Gas Liquid signal V time ns distance 1 2 With Factory Menu Function 1 1 3 Application Type set to 1 liquid 1 level the VF04 2 wire will search for the return signal with the highest amplitude i e higher than the threshold It will measure the oil level 1 Level measurement signal 2 Thr...

Страница 48: ...l probe This may be also due to installation on a long nozzle which has the effect of attenuating the flange pulse Contact HYCONTROL for the corrective procedure Event Fault Action Delay out of limits status marker on reading is frozen The emitted pulse has not been detected The instrument will not work until it has been found The signal converter may need replacing Please contact HYCONTROL Negati...

Страница 49: ...0 mA and goes immediately back to 22 mA contact your HYCONTROL Service Centre The value at the current output does not correspond to the value at the display HyView or HART communicator The current output settings are incorrect Check the current loop and the connections Configure the output as described in Sect 3 3 3 user sub menu 1 3 of the VF04 2 wire Handbook also try adjusting the threshold in...

Страница 50: ...azardous area see page 8 Ex markings TYPE ALUMINIUM HOUSING VF04 4 5Ex 6Ex 8Ex Ex marking ATEX II 1 G Ex ia IIC T6 T3 Ga II 1 G Ex ia IIB T6 T3 Ga II 1 D Ex ia IIIC T85 C T180 C Da II 1 2 D Ex ta tb IIICT85 C T180 C Da Db Intrinsically safe data Ex ia IIB and Ex ia IIIC Ci 10 nF Li 10 H Ui 30 V Ii 140 mA Pi 1 W Intrinsically safe data Ex ia IIC Ci 10 nF Li 10 H Ui 30 V Ii 100 mA Pi 0 75 W Medium t...

Страница 51: ...51 51 June 2019 Hycontrol reserves the right to change technical data without notice ...

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