® TECHNICAL DESCRIPTION MULTICAL List of Contents General Description ......................7 Mechanical construction ........................8 Technical data ........................9 Approved meter data ..........................9 Electrical data............................10 Mechanical data..........................10 Accuracy..............................10 Materials .............................11 Type overview .........................12 ® Type number, MULTICAL 401......................13 PROG (A-B-CCC) ...........................15 CONFIG, DD-E-FF-GG..........................16 DATA ..............................18 Other functions ...........................18 Dimentional sketches .....................19...
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® TECHNICAL DESCRIPTION MULTICAL Temperature sensors...................... 40 EN 60751 table for Pt100 and Pt500 sensors ..................40 Sensor types............................42 Pt500 sensor set for pockets....................... 42 Pt500 short direct sensors ........................43 10 Supply modules ......................44 10.1 Built-in D-cell lithium battery....................... 44 10.2 Supply module 230 VAC ........................
401 is delivered either with short direct sensors according to EN 1434-2 or with ø5.8 mm pocket sensors that fit Kamstrup’s stainless steel sensor pockets. The accumulated thermal energy can be displayed in kWh, MWh or in GJ, all including seven significant digits and measuring unit.
® TECHNICAL DESCRIPTION MULTICAL Mechanical construction Figure 1 Transparent top cover with front plate Sealing screw for verification cover Verification cover including push button. The lid of the supply unit can be opened without breaking the verification Supply: Battery, 24 VAC or 230 VAC. Can be replaced without breaking the verification Case for electronics unit Screws for bracket Bracket.
® TECHNICAL DESCRIPTION MULTICAL 2 Technical data Approved meter data MID designation - Mechanical environment Class M1 - Electro-magnetic environment Class E1 Climatic environment 5…55°C, non condensing, closed location (indoor installation) EN 1434 designation Accuracy class 2 or 3, environmental class A Flow sensor types qp 0.6 m /h…qp 15 m...
® TECHNICAL DESCRIPTION MULTICAL Electrical data Supply voltage 3.6 V ± 5% Battery 3.65 VDC, D-cell lithium Replacement interval < 30°C Mounted on the wall 12 years @ t < 40°C Flow sensor mounted 10 years @ t < 30°C ”Fast mode”...
® TECHNICAL DESCRIPTION MULTICAL 3 Type overview 3.1 Type number 66-W?-??X-??? Flow sensor The type number of the flow sensor cannot be changed after programming at the factory. 3.2 PROG (Total prog) A-B-CCC 3.3 CONFIG (Partial prog) DD-E-FF-GG 3.4 DATA (Partial prog) -Customer no.
® TECHNICAL DESCRIPTION MULTICAL PROG (A-B-CCC) Prog. no. Flow sensor placing: Flow According to k-factor table Return Measuring unit, energy Flow sensor coding 3.2.1 Standard CCC codes ® CCC table for MULTICAL Number of decimals on the display CCC no. m³...
® TECHNICAL DESCRIPTION MULTICAL CONFIG, DD-E-FF-GG 3.3.1 >DD< CONFIGURATION OF DISPLAY DD – codes >Primary< Level 1 (13) (15) (17) (20) (22) Energy Volume Hour counter T1, flow temperature T2, return temperature Differential temperature Actual power • 8 • • 8 •...
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® TECHNICAL DESCRIPTION MULTICAL 3.3.2 >E< CONFIGURATION OF MULTITARIF TARIFF TYPE Pil FUNCTION No tariff active No function Power tariff Energy is accumulated in TA2 and TA3 based on the power limites in TL2 and TL3. Flow tariff Energy is accumulated in TA2 and TA3 based on the flow limits in TL2 and TL3. Energy is accumulated in TA2 and TA3 based on the Δt limits in TL2 and TL3.
® TECHNICAL DESCRIPTION MULTICAL DATA Automatic To be stated when ordering Default Serial No. (S/N) and year E.g. 2500000/2003 Customer number Up to 11 digits Customer number = S/N Target date MM=1-12 and DD=1-28 06.01 (1 june) 5 digits 5 digits Peak average time 1…120 min.
® TECHNICAL DESCRIPTION MULTICAL 5 Pressure loss The pressure loss in a flow sensor is stated as the max. pressure loss at q . According to EN 1434 the max. pressure loss must not exceed 0.25 bar, unless the energy meter has a flow controller or functions as pressure reducing equipment.
® TECHNICAL DESCRIPTION MULTICAL 6 Installation Installation requirements ® Before mounting MULTICAL 401, flush the system thoroughly with a fitting pipe mounted instead of the energy meter. Then remove the protection caps from the input and the output of the meter and mount it by means of glands and gaskets.
® TECHNICAL DESCRIPTION MULTICAL ® Installation angle for MULTICAL ® MULTICAL 401 may be installed horizontally, vertically, or at an angle. Figure 6 Important! ® MULTICAL 401 may be turned upwards to max. 45° and downwards to max. 90° in relation to the pipe axis.
® TECHNICAL DESCRIPTION MULTICAL Straight inlet ® MULTICAL 401 does not require either straight inlet or outlet pipe. However, to obtain optimum installation conditions a straight inlet of min. 5 x DN before the flow sensor is recommended. Meter size Recommended DN15…DN50 qp 0.6…qp 15...
® TECHNICAL DESCRIPTION MULTICAL 7 The calculator Measurement and calculation ® MULTICAL 401 uses time based integration, i.e. the calculations of accumulated volume and energy are carried ® out at fixed intervals irrespective of the actual water flow. In normal mode MULTICAL 401 has an integration interval of 28 sec., whereas in ”fast mode”...
® TECHNICAL DESCRIPTION MULTICAL Display functions No matter which indication you have selected in the main menu or sub menu, the display will automatically return to indicate accumulated thermal energy, if the front key has not been activated for 150 sec. Figure 16 The contents of both main and submenus are determined by the configuration selected for the meter (see section ®...
® TECHNICAL DESCRIPTION MULTICAL Information codes ® MULTICAL 401 constantly checks a series of vital functions, whereby serious system errors can be detected. Should one or several serious errors occur in the energy meter, the display will show an ”E” at the left side. In case of short-duration errors the ”E”...
® TECHNICAL DESCRIPTION MULTICAL Reset functions ® MULTICAL 401 includes a “Power On Reset” circuit which is activated every time the supply voltage is switched on. This reset function only resets the internal high-resolution registers and therefore does not influence the display registers.
® TECHNICAL DESCRIPTION MULTICAL Tariff functions ® MULTICAL 401 has two extra energy registers TA2 and TA3, which accumulates energy parallel to the main register on the basis of an entered tariff condition. TA2 and TA3 always have the same measuring unit as the main register (kWh, MWh or GJ), however, except from E=4 [ m °...
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® TECHNICAL DESCRIPTION MULTICAL TARIFF TYPES No tariff active If you do not wish to use the tariff function, select set-up E=0. ® However, the tariff function can be made active by reconfiguring by means of METERTOOL for MULTICAL 401. See section 14.1 Programming with METERTOOL. Power controlled tariff If the actual heat flow rate, in kW, is higher than TL2, but lower than TL3, the thermal energy will be counted in TA2 and in the main register.
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® TECHNICAL DESCRIPTION MULTICAL Figure 20 Figure 21 Figure 22 Cooling tariff ( Δ t) If the actual cooling ( Δ t), in ° C, is lower than TL2, but higher than TL3, the thermal energy is counted in TA2 and the main register.
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® TECHNICAL DESCRIPTION MULTICAL Example 1: After one year a heat installation has used 250 m of district heating water and the average temperatures have been 95 ° C in flow and 45 ° C in return. TA2 = 23750 and TA 3 = 11250. Example 2: It is required that the average temperatures are measured with the annual reading and therefore TA2 and TA3 are included in the annual reading.
® TECHNICAL DESCRIPTION MULTICAL Temperature measurement The temperatures in flow and return are measured by an accurately matched Pt500 and Pt100 sensors. During each temperature measurement MULTICALÒ 401 sends a measuring current through each sensor, approx. 0.5 mA for Pt500 and 3.0 mA for Pt100. 2 measurements are made to suppress any 50 Hz ripple collected via the sensor cables.
Manufacturers of flow sensors have been working with alternative techniques to replace the mechanical principle. Research and development at Kamstrup have proven that ultrasonic measuring is the most viable solution. Combined with microprocessor technology and piezoceramics, ultrasonic measuring is not only accurate but also reliable.
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® TECHNICAL DESCRIPTION MULTICAL In principle, flow is obtained by measuring the flow velocity and multiplying it by the diameter of the measuring pipe: × where: is the flow is the flow velocity is the area of the measuring pipe The area and the length that the signal travels in the sensor are well-known factors.
® TECHNICAL DESCRIPTION MULTICAL Signal paths 0.6…1.5 m³/h 3…15 m³/h Parallel Triangle The sound path is parallel to The sound path covers the the measuring pipe and is measuring pipe in a triangle and sent from the transducers via is sent round from the reflectors.
® TECHNICAL DESCRIPTION MULTICAL ® Guidelines for dimensioning MULTICAL In connection with installations it has proved to be practical to work with pressures larger than the pressures stated below: Nominal flow q Min. operating Max. flow q Min. operating pressure pressure [m³/h] [bar]...
® TECHNICAL DESCRIPTION MULTICAL 9 Temperature sensors EN 60751 table for Pt100 and Pt500 sensors ® For MULTICAL 401 either Pt100 or Pt500 temperature sensors are used according to EN 60751 (DIN/IEC 751). A Pt100 or Pt500 temperature sensor is a platinum sensor with a nominal ohmic resistance of 100.000 Ω and 500.000 Ω...
(see data sheet 5810-337 for further information on sensor sets and sensor pockets): Type Sensor connection Pt100 (Kamstrup does not supply Pt100 sensors) Pt500 Pt500 sensors Pocket sensor with 1.5 m cable Pocket sensor with 3.0 m cable Short direct sensor with 1.5 m cable...
® TECHNICAL DESCRIPTION MULTICAL Pt500 short direct sensors Pt500 short direct sensor is designed according to the European standard for thermal heat meters EN 1434-2. The sensor is designed for fitting directly into the measuring medium, i.e. without sensor pocket, thereby giving an extremely fast response time on temperature changes from e.g.
3 years Table 17 Above battery lifetimes apply to standard installations. The following may reduce the battery lifetime: Warm ambient temperature Frequent data communication Connection of data modules Fast mode For further information, please contact Kamstrup. Figure 30 5512-091 GB/02.2008/Rev. J1...
® TECHNICAL DESCRIPTION MULTICAL 10.2 Supply module 230 VAC This print module is galvanically separated from the mains supply and is suitable for direct mains installation. The module includes a double-chamber safety transformer which fulfils the requirements of double-insulation. The power consumption is less than 1 VA/1 W. Figure 31 National installation requirements must be met.
® TECHNICAL DESCRIPTION MULTICAL 10.5 Mains supply cables ® MULTICAL 401 can be supplied with mains supply cables for either 24 V or for 230 V (l=1.5 m): Figure 33 Supply cable, type 5000-286 (2x0.75 mm²) 5512-091 GB/02.2008/Rev. J1...
® TECHNICAL DESCRIPTION MULTICAL 11 Plug-in modules Type Modules No module M-Bus/pulse inputs (MC 401) Data/pulse output Data/pulse inputs M-Bus/pulse inputs Radio/pulse inputs Radio with external antenna connection/pulse inputs 11.1 Data/pulse output (66-0Q) Figure 34 Figure 35 The module comprises data connection, which e.g. can be used for an external data plug, designed for use with the hand-held terminal MULTITERM, or as a semi-permanent PC connection.
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® TECHNICAL DESCRIPTION MULTICAL The module can also transmit energy pulses to CTS-systems or similar remote accumulation. As energy pulses are not transmitted ”real-time”, they cannot be used for regulation purposes. The pulse output is convenient for connecting electronic counter inputs, while electro-mechanical counters normally require a higher current than 10 mA which the module allows.
® TECHNICAL DESCRIPTION MULTICAL 11.2 Data/pulse inputs (66-0R) Figure 38 Figure 39 The data connection in this module is identical with that described earlier. Two extra pulse signals, e.g. from cold-water and hot-water meters, can also be connected to the meter. Meters with both Reed switch and transistor output can be connected.
The pulse inputs on these modules are identical with the ones described earlier. The Kamstrup M-Bus system is designed to meet the demands in the EN 1434-3 standard. For further information, see the Technical Description for Kamstrup’s M-Bus system (5511-710), and Technical Description for M-Bus module 66-0P (5512-243).
® TECHNICAL DESCRIPTION MULTICAL 11.5 Radio (66-0W) Radio module with connection plug for external antenna to increase the range. Other functions are identical with the ones described earlier. Figure 44 Figure 45 5512-091 GB/02.2008/Rev. J1...
If data cable 66-99-108 or verification equipment 66-99-385 are used, the internal connection are integrated. Kamstrup’s reading head, type 66-99-102, can be connected to Kamstrup’s hand- held terminal, MULTITERM, as well as a standard IBM compatible PC with Windows 98 or newer version installed.
66-CDE. The data strings can be read via an optical reading head or via the data terminals on the plug-in modules. Please note that 300 baud is used at request and 1200 baud at data. For analytical purposes of /#5 monthly data, we recommend Kamstrup software METERTOOL LogView, type 66-99-703. STANDARD DATA 1...
® TECHNICAL DESCRIPTION MULTICAL 12.4 Communication driver ® To develop your own software for data communication, e.g. between a PC and MULTICAL 401, below pseudo code can be used as a draft. The example shows a request for /#1: mscomm1.Settings = "300,E,7,2" mscomm1.InBufferCount = 0 mscomm1.Output = "/#1"...
® TECHNICAL DESCRIPTION MULTICAL 13 Calibration and verification ® In order to be able to carry out test/verification of MULTICAL 401 with a minimum use of time the meter has a testing mode. When the meter is in testing mode the program runs approx. 4 times faster than in standard mode. Testing mode also has some extra functions as described below.
® TECHNICAL DESCRIPTION MULTICAL 13.1 Testing mode Extra display readings In addition to the display readings in standard mode there are two extra testing counters/verification registers for energy and volume respectively. The testing counters appear as extra indications immediately after the main counters for energy (E) and volume (Q).
STUCK Wasser als Wärmeträgermedium”, issued in 1986 by Wirtschaftverlag NW. On Kamstrup’s METERTOOL CD a calculation program for the ”true energy” is found under verification. Please note that before looking up the k-value the following information must be available: – Flow temperature, t –...
® TECHNICAL DESCRIPTION MULTICAL ® 13.4 Pulse Interface for MULTICAL When the meter is in testing mode, verification on rigs with pulse interface, the pulse interface type type 66-99- ® ® 109 is to be used. Type 66-99-109 can be used for both MULTICAL Compact (MCC) and for MULTICAL 401 (MC 401).
Windows and be suitable for printing small self-adhesive label sheets. The printer is connected to the computer’s parallel port, LPT1. Kamstrup A/S recommends a laser printer, but other printer types can also be used. Sheets with original self-adhesive lables, type 2007-084, can be ordered from Kamstrup A/S.
® TECHNICAL DESCRIPTION MULTICAL 14.1.5 Verification equipment type 66-99-385 See section 14.3 Verification with METERTOOL for further information. ® 14.1.6 Reading MULTICAL Connect the serial data communication as described in previous sections and start the program by clicking on the ®...
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Verification See section 14.3 Verification via METERTOOL ® MULTICAL Flow meter Adjustment Is only used when adjusting the 401 flow part (requires a password) Password can be disclosed by Kamstrup A/S Figure 52 Figure 53 Figure 54 5512-091 GB/02.2008/Rev. J1...
® TECHNICAL DESCRIPTION MULTICAL 14.2.5 Options The menu has a few settings which are not used very often: Verification data See section 14.3.3 Verification data . COM port Indicates the choice of COM1...8 14.2.6 Window This function makes it possible to shift between the open dialog boxes. 14.2.7 Help About Includes program numbers and revisions.
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“Verification data”. As this data is of crucial importance for the verification result, they are protected by a password which can only be disclosed by Kamstrup A/S. Figure 57 14.3.4 Permissible error and uncertainty Max. permissible error, indicated as a percentage, and the equipment’s measuring uncertainty must be indicated under each of the three verification points;...
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The following must, however, be executed frequently in order to ensure optimal operation: Recalibration On delivery, a calibration certificate is enclosed issued by Kamstrup A/S. The applied calibrated resistance values must be entered under “Verification data”. The equipment must be recalibrated once a year.
“Flowmeter Adjustment” under the “Utility” menu. This function is protected by a password which can only be ® disclosed by Kamstrup A/S. Data connection between the PC and MULTICAL 401 can be made either by means of a data cable type 66-99-108 or via verification equipment 66-99-385.
® TECHNICAL DESCRIPTION MULTICAL 14.5 Alphabetical register The following alphabetical register explains the terms which appear on the monitor. The register can be read as information and used as a reference, when questions arise. A-B-CCC The calculator’s programming number. Determines the flow sensor’s placement in flow or return, measuring unit and flow sensor size.
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® TECHNICAL DESCRIPTION MULTICAL Print certificate Starts printing the calibration certificate. Preset Starting values for input A and input B. Programming Starts programming the meter. All data displayed will be transmitted to the meter. Read meter Reads the meter’s setting. All the meter’s data are transmitted to the display. Save Customer Stores a setting in the database.
The test reports, project E820068 and E820099, is made by DELTA and forms the basis of type approvals in a number of countries, among these Denmark and Germany. For further information on type approvals and verification, please contact Kamstrup A/S. 27.01 22.52...
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® TECHNICAL DESCRIPTION MULTICAL 16 Trouble shooting ® MULTICAL 401 is constructed with a view to fast and simple mounting as well as long-term, reliable operation at the heat consumer’s. Should you, however, experience an operating problem with the meter, the error detection table below can help you clarify the possible reason.
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MULTICAL 17 Disposal Kamstrup A/S is environmentally certified according to ISO 14001, and as far as possible and as part of our environmental policy we use materials that can be recycled in an environmentally correct way. • Disposal made by Kamstrup A/S Kamstrup are willing to dispose of worn out meters in an environmentally safe manner - please contact us before sending the meters.
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