Heat / Chill Meter PolluCom M Installation and Operating Instructions. PolluCom M. Installation and Operating Instructions. M H 1210 INT, Page 1

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1 PolluCom M Installation and Operating Instructions M H 1210 INT, Page 1

2 The compact meter PolluCom M is suitable for the measurement of energy consumption in heating or chilling plants filled with the energy carrier liquid water. The use of water with anti-freezer agent is possible with the uncalibrated version of PollluCom M and programmed correction factor. These installation and operating instructions specify the installation and the operation of the compact meter PolluCom M and its variants. It is an essential part of the delivered items and has to be handed over to the final user. PolluCom M Delivered items 1 wall adapter, 2 screws, 2 dowels 1 self-adhesive foil 2 gaskets sealing material these installation and operating instructions Content 1. Important directions Technical data Installation of the meter Installation of the temperature sensors Direct installation in heating or cooling liquid Installation in well Display options User menu (example) Target day menu (example) Archive menu (example) Service menu (example) Control menu for tariff purposes (example) Parameter menu (example) Function test, sealing Potential error situations Optical interface and optional modules Optical interface M-Bus option acc. to EN Mini-Bus option remote reading option for heat consumption pulses M-Bus option / Mini-Bus option with two contact inputs Optional integrated data logger...10 Annex: EC conformity declaration Important directions The installation of PolluCom M requires adequate professional knowledge and should be carried out by specially trained persons only. The technical data specified in chapter 2 must not be exceeded during operation. During the installation of PolluCom M, the well or ball valve, particular care is to be taken that they are perfectly mounted, because otherwise there might be the danger of being scalded by leaking heating liquid. Therefore, first of all, the stop cocks are to be closed before removal. Depending on manufacturing conditions the brass connection threads might be sharp-edged. Therefore we recommend wearing protection gloves. Heat or chill meters are measuring instruments and have to be handled with care. In order to protect them against damages and soiling they should only be taken from the package immediately before installation. The instrument must not be carried by the cable. For cleaning purposes use nothing else but a cloth moistened with water. Within the instrument there is a lithium battery, which must not be opened by force, come into contact with water, be short-circuited or exposed to temperatures exceeding 80 C. Empty batteries, no longer needed electronic instruments or components are hazardous waste and to be disposed of at suitable collecting points. If several meters are used in the same billing unit, equal instrument types and fitting positions should be chosen in the interest of the fairest possible consumption billing. M H 1210 INT, Page 2

3 2. Technical data Meter size q p 3.5 q p 6 q p 10 Nominal flow rate q p in m³/h Minimum flow rate q i in m³/h (acc. to approval) Accuracy class 2 or 3 acc. to EN 1434 Ratio q i /q p 1:25, 1:50 or 1:100 Maximum flow rate q s in m³/h (short peaks) Temperature measuring C range ( C for wateranrifreezer liquids, uncalibrated) Temperature difference K range Cut-off threshold 0.15 K Admissible temperature C in the flow sensor Flow rate at 0.1 bar ca. 2.5 ca. 3.8 ca. 6.3 pressure loss in m³/h Pressure loss at q p in bar ca ca ca k vs -value ca. 8.1 ca ca (flow rate at 1 bar pressure loss in m³/h) Admissible operating 16 pressure in bar Overall length in mm for horizontal mounting Overall length in mm for riser or down pipe Nominal diameter R 1 DN 25 R 1 DN 25 R 1 ½ DN 40 R 1 ¼ DN 32 Connection thread G 1 ¼ B G 1 ¼ B or or G 2 B G 1 ½ B Length of the connection ca. 1.2 m cable for split instrument Admissible environmental temperature during C operation Storage temperature C Environmental humidity < 93 %, noncondensing (relative air humidity) (dew formation on the outer surface of the flow sensor admissible) Elektromagnetic class E 1 environmental condition Mechanical class M 2 environmental condition Protection class integrator: IP 54 flow sensor: IP 65 Battery lifetime standard version: 6 years + 1 year storage reserve or 10 years (as special version) 3. Installation of the meter PolluCom M can be used as heat and chill meter. For combined heating / chilling plants (automatic switch-over between heat and chill metering) the version PolluCom M H has to be used. Because of the different possibilities of application below terms are used in the following text: Return pipe of heating plants: Supply pipe of heating plants: Return pipe of chilling plants: Supply pipe of chilling plants: Installation in heating plants: colder line warmer line warmer line colder line Usually the flow sensor of PolluCom M is installed in the colder line. For installation points in the warmer line the versions PolluCom MX or PolluCom MX H are available. X implies that the integrator has been adjusted for flow sensors in the warmer line. Installation in chilling plants: It is recommended to install the flow sensor in the warmer line (return pipe) of the chilling plant, because of the reduced dew formation effects. Because of the low temperature difference it is also admissible to use PolluCom M instead of PolluCom MX. In chilling plants and combined heating / chilling plants the integrator is to be removed from the flow sensor and to be mounted separately. The integrator is removed from the flow sensor (pulling it upwards) and mounted separately at a suitable place by means of the delivered wall adapter. The integrator of PolluCom M can be turned through 330 degrees to a perceptible stop. Forced further turning causes the damage of internal components and the loss of warranty entitlement. The flow direction of the heating or cooling liquid is marked by an arrow on the flow sensor. Additional straight inlet or outlet pipes are not required. The flow sensor and the two temperature sensors have to be installed in the same circuit of the heating or cooling plant. It is to be considered that the admissible mounting position of the flow sensor depends on the meter variant: horizontal (integrator shall point upwards) downpipe riser pipe M H 1210 INT, Page 3

4 Before the flow sensor (or at another suitable point in the heating or cooling circuit) a dirt trap is to be installed, as well as a stop cock before and behind the flow sensor in order to be able to dismount the meter after expiry of the verification period without being compelled to empty the pipeline. Before installing the meter rinse the pipeline throroughly, remove the fitting piece (included in the standard mounting kit) or the old meter and then mount the PolluCom M using new gaskets. Examples of installation: Fig. 1: In new installations DN 25 (R 1 ) both temperature sensors have to be installed directly in the heating or cooling liquid supply line 4. Installation of temperature sensors As far as possible a cable conduit or a cable pipe should be used for laying the cables. In order to achieve the most accurate temperature measurement possible, the tip of the temperature sensor is to be positioned in the middle of the pipe diameter. The cables are to be laid keeping a minimum distance of 0.3 m from electromagnetic influences (generators, motors, frequency converters, etc.) as well as from cables carrying > 50 V. 4.1 Direct installation in the heating or cooling liquid wall adapter ball valve For this type of installation for nominal size DN 25 (R 1 ) the Sensus ball valve with order number is provided. This ball valve is also included in the standard mounting kit DN 25 (R 1 ) for PolluCom M. It is also used for shutting off the pipeline, so that the temperature sensor can be dismounted without having to empty the pipeline. 4.2 Installation in well return line Fig. 2: Installation of the temperature sensors in wells for new installations DN 32 (R 1 ¼ ) and DN 40 (R 1 ½ ) as well as existing installations (verification exchange) DN 25 (R 1 ) to DN 40 (R 1 ½ ) supply line well in tee In order to achieve a correct temperature measurement it is required that the well tip is positioned in the middle of the pipe diameter. Before the temperature sensor can be put into the well, the pressing screw has to be put over the sensor cable at first. Then the two delivered metal half-shells, which are held together by an O-ring, are put onto the sensor from below until they click into the circular groove at the upper end of the sensor (see fig. 3). Please take care without fail that the two half-shells are positioned correctly, and that the chamfer points towards the tip of the temperature sensor. Then insert the sensor into the well up to the stop and screw the pressing screw in. wall adapter return line M H 1210 INT, Page 4

5 5. Display options Temperaturfühlerkabel Temperature sensor Druckschraube Pressing screw Halbschalen Half-shells with mit O-ring O-Ring Temperaturfühler Temperature sensor Tauchhülse Well The different display options of PolluCom M are divided up into six menus. Depending on the meter version and the display masking, some of the display items marked with an asterisk (*) can be shielded. If required, the masking can be changed with the help of the service software MiniCom 3 via the meter s optical data interface. In normal condition the display switches on for one second in intervals of 4 seconds and shows the accumulated heat consumption. By a stroke on the red key, the first display item in the user menu (accumulated heat consumption) is activated. The other five menus can be obtained by depressing the red key for 8 seconds. The selection menu L1 to L6 will appear. Fig. 3: Installation of the temperature sensor in well User menu Target day menu * Pressing screw Archive menu * Service menu Control menu for tariff purposes * Parameter menu * Fig. 5: Change of display menu Fig. 4: Mounted and sealed temperature sensor The menus can be selected by short strokes on the red key in the above sequence. As soon as the desired menu is displayed, depress the red key for 2 seconds in order to get to this menu. The single display items in the menus are activated one after the other by short key strokes. If the key is not operated for 4 minutes, the display will automatically return to the normal condition. In all menus received volume pulses are shown by a blinking impeller symbol (left bottom display corner). M H 1210 INT, Page 5

6 5.1 User menu (example) Error message (only in case of error) Accumulated heat and/or chill energy Target day consumption incl. corresponding date * Accumulated volume Segment test Pulse rate of flow sensor Tariff consumption 1 * (if activated) Tariff consumption chill * (if activated) Consumption pulse meter 1 * (optional) Consumption pulse meter 2 * (optional) Instantaneous flowrate * Instantaneous power * 5.2 Target day menu (example) Customer s reference number * Primary M-Bus address (preset in factory to: 0) * Secondary M-Bus address (preset in factory to: serial number) * All display items are marked with an arrow symbol. Display of all stored values on an adjustable annular target day. Target day value for heat and/or chill energy * Target day value for volume * Target day value for tariff 1 (if activated) * Target day value for tariff chill (if activated) * Target day value for pulse meter 1 (optional) * Target day value for pulse meter 2 (optional) * Return to selection menu (depress for 2 seconds) * Temperature in the warmer line * Temperature in the colder line * Temperature difference * 5.3 Archive menu (example) All display items are marked with a calender sheet symbol. Starting from the current date the values of the turns of the past 16 months are displayed (six-digit date in the form of dd.mm.yy below the main display). Moreover the values for the current month can be called to the display, for this purpose the month to be selected is today. M H 1210 INT, Page 6

7 Selection of the desired month by short keystroke, then depress key for 2 seconds * Heat and/or chill energy * Volume * Tariff consumption 1 (if activated) * Tariff consumption chill (if activated) * Consumption pulse meter 1 (optional) * Consumption pulse meter 2 (optional) * Absolute maximum flow rate incl. date (averaged) * Absolute maximum flow rate incl. time (averaged) * Absolute maximum power incl. Date (averaged) * Absolut maximum power incl. time (averaged) * Absolute maximum temperature in the warmer line incl. date * Absolute maximum temperature in the colder line incl. date * Current date * 5.4. Service menu (example) Maximum flow rate in the selected month incl. date (averaged) * Maximum flow rate in the selected month incl. time (averaged) * Maximum power in the selected month incl. date (averaged) * Maximum power in the selected month incl. time (averaged) * Hours of error condition * Return to month selection (depress for 2 seconds) * Each display item is marked with a man symbol. The service menu shows maximum values and settings of the meter. Current time * Next target day * Operating days * Battery voltage * (calculated) Accumulated failure hours* Primary M-Bus address (preset in factory to: 0) * Secondary M-Bus address (preset in factory to: serial number) * Data communication mode (length and structure of M- Bus protocol) * Version of firmware M H 1210 INT, Page 7

8 Check sum High-resolution energy display * High-resolution volume * Return to selection menu (depress for 2 seconds) * 5.5 Control menu for tariff purposes (example) Each display item is marked with the letters CTRL. Here the tariff functions settings can be controlled. Set averaging interval for flow rate and power * Power in current averaging interval * Flow rate in current averaging interval * Set tariff 1 start time (if activated) * Set tariff 1 end time (if activated) * Switch-over temperature for chill metering (if activated) * Switch-over point for negative temperature difference chill metering (if activated) * Correction factor for waterantifreezer mixtures * Return to selection menu (depress for 2 seconds) * 5.6 Parameter menu (example) Each display item is marked with the tool symbol. This menu is protected by password. The password corresponds to the last three digits of the eight-digit serial number on the meter body. At first 000 appears. Then depress the key for ca. 2 seconds, and the left zero starts blinking. By continuously depressing the key the value of the blinking digit can be changed. As soon as the desired value is obtained, release the key. A short keystroke confirms the set value and switches to the next digit. Here repeat the same procedure. As soon as the last digit has been set, the menu will be released. Now the desired items can be selected by short keystrokes. The values can be set analogical to entering the password. Password enquiry * Setting primary M-Bus address * Setting secondary M-Bus address * Setting customer s reference number * Setting averaging interval for flow rate and power * Setting data communication mode (One, All, F length) * Pulse rate of the first external meter (0.25 to 10,000 l/pulse) * Pulse rate of the second external meter (0.25 to 10,000 l/pulse) * Set date * Set time * Set target day * M H 1210 INT, Page 8

9 6. Function test, sealing Reset absolute maxima * Reset failure hours * Reset power failure hours* Return to selection menu (depress for 2 seconds) * Slowly open the stop cocks and check the installation for leaks. For control purposes the current values of flow rate, power as well as supply flow and return flow temperature can be called to the display according to chapter 5.1. In order to protect the meter against tampering, the delivered self-lock seals have to be applied to the following points: unions of the flow sensor installation point of the separately mounted temperature sensor (see also chapter 4). 7. Potential error situations PolluCom M is equipped with an automatic selfchecking function. In case of error the display shows a four-figure error code in the form Err XYZW. For decoding below allocation can be applied: X: Check of temperature sensors Y: Check of the integrator Z: Error statistics W: Failure in flow sensor Extract: Err 1010 Err 2010 Err 4010 Err 8010 Code Decoding Temperature sensors mixed up or temperature in the colder line exceeds temperature in the warmer line One or both temperature sensors is/are short-circuited Cable failure of temperature sensor for colder line Cable failure of temperature sensor for warmer line In most cases the error situation Err 1010 is caused by temporary plant conditions, as soon as the temperature in the warmer line drops by at least 3 K below the temperature in the colder line. In case of all other error situations please contact our Customer Service. 8. Optical interface and optional modules 8.1 Optical interface All meters are equipped with an optical data interface. Via an optical data coupler (e.g. order number for RS 232 connection or order number for USB connection) set parameters can be changed with the use of the service software MiniCom 3, or the meter can be read out via the readout system DOKOM Mobil. The data interface is activated for an hour by a short keystroke. By every meantime data communication this period of time starts again, so that e.g. a logger readout in 15-minute or hourly intervals is possible during a longer time. 8.2 M-Bus option acc. to EN This option allows a readout of the meter via its primary or secondary address by means of an M- Bus level converter (300 and 2400 Baud, automatic recognition). Both addresses can be set in the parameter menu (see chapter 5.6) or with the help of the service software MiniCom 3 (Please note: The secondary address preset in the factory corresponds to the serial number on the meter body). The primary address can be set between 0 and 250 and has been preset in the factory to 0. The optional two-wire cable is integrated in the M- Bus system at a suitable place. The polarity of the two wires can be disregarded. M H 1210 INT, Page 9

10 8.3 Mini-Bus option This option allows the meter to be connected with an inductive readout point (MiniPad, order number ). The total length of the two-wire cable between meter and readout point must not exceed 50 meters. The polarity of the two wires can be disregarded. The transferred protocol corresponds to the M-Bus protocol, and the meter can be read out via the MiniReader (order no ) or with the help of the readout system DOKOM Mobil. 8.4 Remote reading option for heat consumption pulses The four-wire cable is connected as follows: White = external meter 1 / positive pole Brown = external meter 1 / negative pole Green = external meter 2 / positive pole Yellow = external meter 2 / negative pole Specification of contact inputs: Required closing time: Input frequency: Terminal voltage: > 125 ms < 3 Hz 3 V The required programming regarding: Pulse rate: Closing time: Bounce time: Max. voltage: Max. current: 10 kwh 125 ms none 28 V DC or AC 0.1 A meter type physical unit and rate of input pulse initial meter reading The two-wire cable is connected to a suitable pulse totalizer or to the contact input of a house control system. The polarity of the two wires can be disregarded. 8.5 M-Bus option / Mini-Bus option with two contact inputs In addition to the module specified in chapter 8.2 or 8.3 two external consumption meters (cold water, warm water, electricity, gas, others) with passive remote reading contact (Reed switch or open collector) can be connected. This option has altogether two connection cables ( 1 x two wires, 1 x four wires). The two-wire cable (white and brown wire) is integrated at a suitable place in the M-Bus or Mini-Bus system, the polarity can be disregarded. meter number and M-Bus addresses is carried out via service software MiniCom Optional integrated data logger The integrated data logger stores consumption values and instantaneous values (power, flow rate, temperatures) in a selectable time interval (3 to 1440 minutes). The logger data can be read out via the optical interface, M-Bus or Mini-Bus with the help of the service software MiniCom 3. The time interval (preset in the factory to 60 minutes) can also be changed with the help of MiniCom 3. M H 1210 INT, Page 10

11 Annex: EC conformity declaration M H 1210 INT, Page 11

12 Material number: Edition: October 2007 Subject to changes Sensus Metering Systems GmbH Industriestraße 16 D Ludwigshafen Phone: + 49 (0) Fax: + 49 (0) info.de@sensus.com M H 1210 INT, Page 12