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1 About this document

1.4 Symbols

1.4 Symbols

1.4.1

Danger levels

Signal word

Danger level

Consequences of non-observance

DANGER

Immediate threat of danger

Serious personal injury, death

WARNING

Possible threat of danger

Serious personal injury, invalidity

CAUTION

Potentially dangerous situation

Slight personal injury

ATTENTION

Potentially dangerous situation

Material damage

1.4.2

Danger signs

Meaning

Source and possible consequences of non-observance

Electrical voltage

Electrical voltage causes serious physical injury or death.

1.4.3

Symbols in this document

Meaning

Warning personal injury

Safety instruction

Request for action

1.

2.

3.

Multi-step instructions for actions

Action result

Cross-reference

4

OIE 12en-GB Edition 2020-03

Operating instructions

Содержание BEM 500

Страница 1: ...Operating instructions KRAL display and processing unit BEM 500 SW 3 004 OIE 12en GB Edition 2020 03 Original instructions www kral at...

Страница 2: ...6 4 Mounting the electronic unit at the pipe flowmeter 17 7 Connection 18 7 1 Dangers during connection work 18 7 2 Connecting cables to the tension spring terminals 18 7 3 Connect the pick ups and t...

Страница 3: ...rk properly due to their training knowledge and experience and on the basis of the relevant provisions Information on the qualification of the personnel is provided separately at the beginning of the...

Страница 4: ...erous situation Slight personal injury ATTENTION Potentially dangerous situation Material damage 1 4 2 Danger signs Meaning Source and possible consequences of non observance Electrical voltage Electr...

Страница 5: ...ly carried out by qualified personnel trained personnel o Wear personal protective equipment and work carefully o Observe the operating instructions of the flowmeter and of the sensors 3 Technical dat...

Страница 6: ...Chronological phase shift min for direction detection in Encoder mode s 0 2 Temperature input Three wire Pt100 Range min max C 40 200 Resolution C 0 1 3 3 4 Analog output pulse output and relay outpu...

Страница 7: ...125 Flow direction detection in the Encoder mode possible Relay output Potential free change over contact Fuse protection by customer required Nominal load voltage V AC 250 V DC 30 Switching current...

Страница 8: ...r supply 24 V DC 10 Pulse output 1 24 V 2 Modbus interface RS 485 11 Pulse output 2 24 V 3 Serial interface RS 232 12 Temperature input A Pt100 4 Analog output 1 4 20 mA 13 Temperature input B Pt100 5...

Страница 9: ...se output Pulse output 1 Signal 1 Gnd 2 Pulse output 2 Signal 34 Gnd 35 Relay output Relay output 1 bypass valve filling valve NO contact 9 Switching contact 10 NC contact 11 Relay output 2 group erro...

Страница 10: ...is supplied with settings in accordance with the operating data 4 1 2 Volume measurement Each positive edge of the pulse signal starts a period measurement and at the same time stops the previous mea...

Страница 11: ...ts at differential measurement with the option A B for values A A B 1 so that the value A A B can also be used to judge the reliability of a differential measurement For the case A A B 1 for example i...

Страница 12: ...tions Different extension stages of the electronic unit are presented on the basis of the following examples This allows the required functional scope to be selected in accordance with the requirement...

Страница 13: ...flow measurement o Temperature compensation o 2 relay outputs o 2 analog outputs o 2 pulse outputs 000141 Basic flow direction detec tion o 2 flowmeters o 2 pick up each o 1 BEM 500 electronic unit o...

Страница 14: ...e Data value unit rate 0103 4016 0001 700E 2 06 Unit total 4015 1 1 9 0 See Data value unit total 0103 4015 0001 800E 2 07 Unit temperature 4017 1 1 2 0 See Data value unit temperature 0103 4017 0001...

Страница 15: ...t at least during initialization of the elec tronic unit i e during switch on because these values can be modified manually Notice For parameter settings of the electronic unit via Modbus function 10...

Страница 16: ...5 6 117 117 3 117 117 1 Electronic unit 2 Front frame 3 Control cabinet section 4 Sealing frame 5 Seal with cable entries 6 Housing cover Requirement Control cabinet with plate thickness 0 5 5 0 mm Mo...

Страница 17: ...Personnel qualification o Electrician Personal protective equipment o Work clothing Aids o KRAL tool set The electronic unit can be mounted to the pipe or on the flowmeter by means of the universal mo...

Страница 18: ...s 48 V to the potential free relay outputs orange terminals 9 11 and or 42 44 is required Before wiring these potential free relay switch contacts ensure that all wires for this purpose are potential...

Страница 19: ...unit 5 Connect the cables for temperature sensors in accordance with the wiring plan at flowmeter A and B 6 Check the resistance values at cables for temperature sensors on the side of the electronic...

Страница 20: ...ersonnel qualification o Electrician Personal protective equipment o Work clothing Aids o KRAL tool set o Diagonal cutter o Wiring diagram ATTENTION Device damage through incorrect connection Observe...

Страница 21: ...r 1 Disconnect the cables at Connections 3 4 and 5 or 36 37 and 38 of the electronic unit 2 Check the resistance of the Connection Page 18 and observe the re marks in the wiring plan Electronic unit 1...

Страница 22: ...2 Total flow flowmeter B since last reset with password protection Rho Density f Frequency K K factor 10 1 2 Units In order to make extensive conversions by the user superfluous various country specif...

Страница 23: ...ral operating steps The following table describes the input and modification of the password as well as general operating steps such as the changing of values and units The password is included in the...

Страница 24: ...ccepted Changing the value Requirement 2 01 Setting Enable Password Set to No 1 Press Flashing cursor indicates the active input field 2 With or Change the position within the number input 3 With or I...

Страница 25: ...rd and Press Total value 2 is reset Select the lan guage see 1 13 Setting Select Language Call up menu item Press simultaneously Select the language 1 Press Flashing cursor indicates the active input...

Страница 26: ...ntrast o 1 13 Setting Select language o 1 30 Setting Enter password o 1 31 Help on operation 2 General settings o 2 01 Setting Enable password o 2 02 Setting Change password o 2 03 Setting Select mode...

Страница 27: ...K factor Volumeter A Point 7 5 K factors flow meter B o 5 01 K factor Volumeter B Point 1 o o 5 07 K factor Volumeter B Point 7 6 Density table 1 density calculation o 6 01 Density table 1 Point 1 o...

Страница 28: ...A1 and TA2 of the flowmeter A since the last reset 1 05 Display Volu meter B Shows flow QB and temperature TempB If the temperature lies outside the permissible range or if a temperature sensor is not...

Страница 29: ...g task o Changes only possible with password o Operation Page 22 Menu item Description 2 01 Setting Enable Password Factory settings o Password 1000 o Password protection Yes Yes o Password protection...

Страница 30: ...able o NPN o PNP o Namur For push pull pick ups you can either use NPN or PNP Note With this setting you can also switch the supply voltage for the pick up Technical data Page 5 2 13 Setting Function...

Страница 31: ...ation in Menu 4 and Menu 5 2 19 Setting Minimum temperature volumeter Set the smallest permissible operating temperature of the flowmeter This temperature is limited mainly by the selection of the pic...

Страница 32: ...0 In the process the old measured value is weighted higher by the averaging value than the new measured value Averaging of the dis play is also active on the Modbus 3 07 Setting Function pulse output...

Страница 33: ...e output Set to Independent Note After the setting has been changed the electronic unit has to be restarted 3 11 Setting Scale pulse output 2 The scale of the pulse output is used to set the pulse sig...

Страница 34: ...14 Setting Limit value bypass The function allows the automatic activation of a bypass valve when a flowmeter blocks The limit value is selected smaller than the smallest minimum flow rate occurring d...

Страница 35: ...o 0 Hz or to Hz via the first or last two linearization points resp and mirrored into negative values 11 7 Menu 5 K factors flowmeter B o Entry of the K factors of the flowmeter B with increasing freq...

Страница 36: ...by the input of the density value 0 A density value for the minimum and maximum temperature respectively is added automatically to the density table The value for the minimum temperature 40 C is dete...

Страница 37: ...the density value 0 A density value for the minimum and maximum temperature respectively is added automatically to the density table The value for the minimum temperature 40 C is determined internally...

Страница 38: ...s fault messages as well as their cause and remedy Alarms Fault message Cause and elimination 8 00 No alarm The elec tronic unit is working without problems There is no fault 8 01 Alarm Password inval...

Страница 39: ...output 1 or 3 11 Setting Scale pulse output 2 o Correct the pulse width see 3 12 Setting Pulse output pulse width setting The maximum frequency of a pulse output amounts to o Mode Encoder 1 4 x pulse...

Страница 40: ...21 Alarm Max Flow B exceeded Check pick up The maximum permissible flow rate was exceeded in flowmeter B o Limit the flow rate o Check flowmeter o Use a larger size o Check and eliminate an electroma...

Страница 41: ...it and power pack o Shield the lines to the pick ups and terminate the shield to Gnd chassis or ground POWER FAIL no counting Falls below supply voltage 17 5 V Keyboard background illumination flashes...

Страница 42: ...icle No Suitable for Wall mounting UZA 20 BEM 300 BEM 500 117 2 96 96 70 70 117 100 100 8 5 9 Fig 3 Mounting dimensions of universal mount UZA 20 Mounting M8 15 1 3 Fixing kit for pipe mounting mounti...

Страница 43: ...erature sensors have to be replaced by temperature sensors with Pt100 out put These temperature sensors are available from KRAL During conversion observe setting the tem perature sensor units Notice D...

Страница 44: ...ted by NTC in heated state higher Overvoltage protection at the input Varistor Fuse Internal fuse T4A 250 V additional external fuse not required Current consumption A typ o 0 25 at 230 V AC o 0 5 at...

Страница 45: ...5 2 5 o Output Ua 2 x 0 5 2 5 o Output GND 2 x 0 5 2 5 Dimensions WxDxH mm 36 x 76 x 94 Weight g Approx 250 Model Sheet steel can be snapped onto a DIN rail TS35 EN 60715 or can be screwed on Tab 11 T...

Страница 46: ...akes place for diesel temperature 70 C Density calculation takes place for heavy fuel oil Density determination o The current density is determined by means of the temperature measurement either via o...

Страница 47: ...square wave form Relay output o Potential free change over contact Return line o Line from the consumer back to the reservoir Group error message o Message that indicates the occurrence of at least on...

Страница 48: ...KRAL GmbH 6890 Lustenau Austria Tel 43 5577 86644 0 E Mail kral kral at www kral at...

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