background image

Manual FLOW 38 

 

 

    Page 23 (total 54) 

 

 

       COMAC CAL s.r.o. 

Replacement of tube fuse in the meter 

 
!!! Risk of electric shock! Uncovered components generate dangerous voltages. Before removing the 
cover from the electronics area, make sure that the meter is not under voltage!!! 
 
The instrument fuse is on the power supply PCB and it is replaced as follows: 

1.

 

Switch off power. 

2.

 

Unscrew the rear cover of the meter housing 

3.

 

Remove the protective cover and replace the instrument fuse (use solely T250mA tube fuses for 
230VAC power or T800mA for 24VAC/VDC power)  

4.

 

Proceed in reverse order to recover the function of the meter.  

 

 
 
 
 

 
 
 
 
 
 
 
 
 

 
 

 
 

 

Wiring check 

 
After completion of wiring, it is necessary to check: 
 

-

 

Connecting cables for damage. 

-

 

If the cables used are suitable for given cable entries. 

-

 

Cables for pull relief. 

-

 

Correct tightening of cable entries. 

-

 

Correct connection of cables to terminals. 

-

 

Whether the supply voltage corresponds with the nameplate data. 

-

 

After the meter is closed, tighten the covers properly to the O-rings.

 

 

 

Содержание FL38H15

Страница 1: ...Manual FLOW 38 Page 1 total 54 COMAC CAL s r o FLOW 38 Ver 8 2x Installation and technical conditions Date of issue 31 10 2019...

Страница 2: ...rent output 21 The external button to reset the user volume Vnull 22 Data output 22 Protection degree 22 Replacement of tube fuse in the meter 23 Wiring check 23 Putting into operation 24 FLOW 38 OPER...

Страница 3: ...Manual FLOW 38 Page 3 total 54 COMAC CAL s r o Flow sensor cleaning 52 Servicing 52 Order code 53 Returning the meter to COMAC CAL s r o 54...

Страница 4: ...d optional features Threaded design Electronic evaluation unit with a fixing bracket for wall mounting not for the compact design flow sensor in case of compact design the electronic unit is integral...

Страница 5: ...lift the flanged meters by the transducer head or by the connecting box of the detached design during transportation Use slings and place them round both process connections for transportation of met...

Страница 6: ...ffecting the steady flow must be present in the straight pipeline sections They must be located in the piping after the flow sensor or at the farthest distance before it Sources of disturbances may su...

Страница 7: ...n of empty tube detection in horizontal mounting position operates correctly only if the evaluation unit is oriented upwards see Fig below Alternatively it is not possible to ensure that the activatio...

Страница 8: ...in case of metallic pipes with internal non conductive layer earthing rings are needed Do not install the sensor at the suction side of the pumps this will eliminate the risk of vacuum and possible da...

Страница 9: ...g and similar works are completed The actual installation is performed by the fixation between the counter flanges that are welded to the calming pipeline 5 d before and 3 d after in the direction of...

Страница 10: ...quid again the error message disappears and the flow meter starts taking measurement again Measurement error caused by incorrect mounting installation 1 correct installation flow sensor should be inst...

Страница 11: ...lectrode and or empty piping test electrode 3 4 of the electrode During installation beware of dropping the meter onto the ground and damaging the measuring tube or electronics contamination of the el...

Страница 12: ...s and bolts Table with tightening torques for screws bolts EN 1092 1 Diameter nominal PN 10 PN 16 DN Screws Tightening torque Nm Screws Screws Rubber PTFE PFA ETFE PVDF Rubber PTFE PFA ETFE PVDF 10 4...

Страница 13: ...250 12 x M27 88 120 12 x M30 105 220 300 16 x M27 95 125 16 x M30 115 250 350 16 x M30 115 200 16 x M33 140 400 16 x M33 135 255 16 x M36 165 500 20 x M33 350 430 20 x M36 600 20 x M36 600 740 20 x M4...

Страница 14: ...voided Seal The turned up part of the lining does not carry out the function of sealing so it is necessary to insert the appropriate seal precisely centred between the sensor and the pipeline If the s...

Страница 15: ...equalization This holds true for two phase or two component flows in which the medium is blended badly or its components cannot be blended In general it can be said that using the earthing rings is al...

Страница 16: ...s 0 3 0 6 mm thick After insertion of the sensor remove the metal plates and install the screws bolts High temperature pipeline High temperature medium At temperatures of the medium to be measured ove...

Страница 17: ...sor and the transducer with the same serial numbers The special cable for connection of the detached meter design must not be extended or cut short In case of infringement of these requirements measur...

Страница 18: ...onics to the required position and fix the unit to the bracket by tightening the fastening nut The FRONT F design this design can be positioned again as the compact or detached ones Wall mounting At f...

Страница 19: ...or from the flow sensor is 200mm Meter wiring The evaluation unit consists of two assemblies Front PCB with display unit Input Output PCB along with power supply Evaluation unit terminal board wiring...

Страница 20: ...up resistors for defining the steady state level Configuration 1 The Impulse output is used for remote transmission of volumetric impulses The conversion constant is arbitrarily variable using button...

Страница 21: ...igher than R Ue 0 02 V As standard it is set in such a way that with the maximum flow Qmax the loop current is 20mA and with the zero or negative flow the loop current is 4mA The borders can be set by...

Страница 22: ...er to ensure IP 65 protection after installation in the plant or after a service intervention the following must me met The O rings inserted in sealing grooves must be clean and intact If necessary th...

Страница 23: ...ousing 3 Remove the protective cover and replace the instrument fuse use solely T250mA tube fuses for 230VAC power or T800mA for 24VAC VDC power 4 Proceed in reverse order to recover the function of t...

Страница 24: ...in case of a non standard state or a failure this is displayed by alternating indication of the status and main menu basic data and the operator is warned by a text The meter status is divided into 4...

Страница 25: ...enu it is used to decrement a value The MIDDLE BUTTON a long press makes it possible to go over to settings menu in settings menu it is used to confirm the value ENTER E Special button functions A lon...

Страница 26: ...olume rV Status The order may vary as per meter s settings The customers may select the data to be displayed on the first two lines or change the order in such a manner that corresponds to their requi...

Страница 27: ...and buttons to set the menu item on the display and press the E to edit Implement settings in a standard way using the setting buttons and confirm by pressing the E button It is necessary again to co...

Страница 28: ...dication imp L or L imp and impulse width Note Period ms pulse width ms inter pulse gap ms where gap width The pulse width is selected in steps by scrolling through predefined values with or buttons F...

Страница 29: ...the impulse output to which the volumetric counter will respond volume run in positive direction in opposite direction and in both directions as well as your own impulse constant including its indicat...

Страница 30: ...direction in opposite direction and in both directions as well as your own switching point value Qlimit the number of decimal places is given by DN of the given meter and cannot be changed The status...

Страница 31: ...calibration can be carried out by changing the Offset value Error service is always required Warning setting is out of parameters All warnings errors Q both flow directions 0 l h 12mA Q positive flow...

Страница 32: ...ress can be in the range of 0 255 The MBUS protocol supports the broadcast address 254 If communication was not ordered Idle state basic indications on display Basic indications in idle state can be i...

Страница 33: ...t activation of a button Use the and buttons to select the desired settings from menu Serial number The serial number is registered in the factory and cannot be changed by user Modifications can only...

Страница 34: ...authorized person under production password Zero calibration The date under Zero calibration heading indicates the date when zero flow calibration was performed If you want to recalibrate the zero flo...

Страница 35: ...After termination of flow simulation mode it is necessary to exit Parameters menu by the long press 3sec button The customer can set the value of the simulated flow If you want to activate or deactiv...

Страница 36: ...alue due to saturation by the one right before saturation this flow rate value is held for 10sec max If the amplifier fails to return to normal state within 10sec the error Amp signal limit is declare...

Страница 37: ...hanged the respective measured value will be changed in this counter as well the value is not recalculated In consequence we recommend resetting of the counter changed in this way after reconfiguratio...

Страница 38: ...can be fitted with an expansion module for enhancement with the following function 1 DATALOGER 2 MBus 3 DATALOGGER MBus SDHC CARD DATALOGGER The expansion module is inserted in the slot found in powe...

Страница 39: ...ited to 4096 2MB If the log file is longer a new one is established incremented by 1 The log file name is LOG00 TXT LOG99 TXT In the case of correct data write WRITE is always indicated in the left lo...

Страница 40: ...ast two digits of the serial number Diagnostics Reception and transmission can be diagnosed in SET menu communication line 1 RS485 settings Rx reception on line 1 RS4858 MBus Modbus Tx transmission on...

Страница 41: ...urn the plastic cover along with the electronics PCB 3x 90 at the most While turning pay particular attention to connection cables with the power supply part which is attached to the rear side of the...

Страница 42: ...ctronics cover and replace it with a good one possibly use the PCB with another version of the power supply 6 Connect the flat cable connector and insert the PCB in the electronics cover in proper ori...

Страница 43: ...m s 1 200 Flow meter accuracy up to 0 5 for 0 1 10 m s Repeatability up to 0 2 for 0 1 10 m s Additional electrodes reference earthing and detection for empty pipeline DN 10 DN 600 Empty pipeline det...

Страница 44: ...structure in the Flow sensor technical parameters Table it is a special or non standard design In this case find the information on the sensor nameplate where this information is always indicated or p...

Страница 45: ...pulse constants and current loop factory settings Diameter nominal Impulse output 4 20mA in Qmin Qmax 1 100 range DN Vout imp l Vout pulse width ms Q l h for 4mA Q l h for 20mA 4 10 4 0 600 6 10 4 0 1...

Страница 46: ...2 DN 8 0 04 2 2 DN 10 0 06 0 034 3 4 DN 15 0 13 0 076 7 6 DN 20 0 24 0 142 0 071 14 2 DN 25 0 35 0 21 0 105 21 DN 32 0 6 0 34 0 17 34 DN 40 0 9 0 54 0 27 54 DN 50 1 4 0 84 0 42 84 DN 65 2 4 1 44 0 72...

Страница 47: ...nsor H4 Building height of sensor Weight of detached flow sensor kg H2 Building height of comp meter Compact flow meter weight kg 4 70 157 92 4 182 5 6 70 157 92 4 182 5 8 70 157 92 4 182 5 10 3 8 70...

Страница 48: ...g H1 Building height of comp meter Compact flow meter weight kg 10 15 51 90 110 2 195 3 20 61 90 120 2 205 3 25 71 90 130 3 215 4 32 82 90 140 3 226 4 40 92 110 150 4 236 5 50 107 110 165 4 251 5 65 1...

Страница 49: ...lass and standards 200 86 4 173 5 20 200 86 4 173 5 25 200 91 5 178 6 32 200 96 6 183 7 40 200 101 7 188 8 50 200 109 9 196 10 65 200 119 11 206 12 80 200 126 12 213 13 100 250 139 19 226 20 125 250 1...

Страница 50: ...kg H2 Building height of comp meter Compact flow meter weight kg 10 DN 10 70 180 173 90 4 177 5 15 DN 15 70 175 165 90 4 177 5 20 DN 20 80 175 170 95 4 182 5 25 DN 25 90 175 180 100 5 187 6 32 DN 32 1...

Страница 51: ...Manual FLOW 38 Page 51 total 54 COMAC CAL s r o Nomogram for quick proposal of the measured place Reduction in DN pipe If the pipe s DN is higher than that of the meter selected...

Страница 52: ...be cleaned mechanically with a steel brush and then the cleaning can be completed using diluted hydrochloride acid or citric acid solution The acid removes calcareous layers or black layers of iron co...

Страница 53: ...Manual FLOW 38 Page 53 total 54 COMAC CAL s r o Order code...

Страница 54: ...department If you return the meter to the manufacturing plant adhere to the conditions stated below Clear the meter of contaminations stuck to the sensor and measuring tube eventually to the Evaluati...

Отзывы: