Table of Contents
Advertisement
Quick Links
Digital Active Energy, Dual-Tariff, Export & Import Meter
Last revised: 14.04.2008
Installation and Operating Manual
NORDWESTDEUTSCHE ZÄHLERREVISION
ING. AUG. KNEMEYER GMBH & CO. KG
Heideweg 33
49196 Bad Laer
Stand: 09.01.2008
Phone
+49 (0) 54 24 / 29 28 – 0
Fax
+49 (0) 54 24 / 29 28 – 77
E-Mail
info@nzr.de
Internet
www.nzr.de
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for NZR DHZ Series
Summary of Contents for NZR DHZ Series
- Page 1 Installation and Operating Manual NORDWESTDEUTSCHE ZÄHLERREVISION Phone +49 (0) 54 24 / 29 28 – 0 ING. AUG. KNEMEYER GMBH & CO. KG +49 (0) 54 24 / 29 28 – 77 E-Mail info@nzr.de Heideweg 33 49196 Bad Laer Internet www.nzr.de Stand: 09.01.2008...
- Page 2 NZR. All trademarks and product names mentioned in this manual are the property of NZR Nordwestdeutsche Zählerrevision Ing. Aug. Knemeyer GmbH & Co. KG or the respective proprietors.
-
Page 3: Table Of Contents
Contents Preliminary remarks ................. 5 Safety information ................... 5 Maintenance....................5 Information for the electric power customer............5 Mounting and installation ................. 6 Mounting ......................6 Installation...................... 7 2.2.1 Connection examples..................8 General description ................10 Standards and regulations ..............11 Housing, control and display elements............ - Page 4 Illustrations Housing dimensions ................6 Figure 1: Housing, control and display elements ..........12 Figure 2: Layout of display ................13 Figure 3: Operational diagram of direct-measuring meter ........15 Figure 4: Operational diagram of transformer meter ..........15 Figure 5: System layout –...
-
Page 5: Preliminary Remarks
1 Preliminary remarks This manual describes all model variants and functions of the DHZ, firmware version 3.03 and above. Please note that the meters can be designed differently with respect to configuration data interfaces, input/outputs, etc. Therefore, it is possible that meter features are described that do not apply to the particular meter you are using. -
Page 6: Mounting And Installation
2 Mounting and installation 2.1 Mounting The meters of the DHZ series are designed for mounting on top-hat rails TH 35-7.5 in accordance with DIN 60715. Figure 1: Housing dimensions... -
Page 7: Installation
2.2 Installation The meter must be connected according to the wiring diagram, which you will find in the terminal cover of the meter. Examples of wiring diagrams can be found on page 8. The directly connected model of the DHZ can be connected on the output side to a 3- or 4-phase busbar with left-side N connection. -
Page 8: Connection Examples
Current terminal / Auxiliary Voltage terminals N terminal terminals up to 65 A up to 5 A up to 65 A up to 5 A up to 65 A up to 5 A Terminal dimensions 6.9 x 7.9 3.3 x 3.0 2.7 x 3.0 2.7 x 3.0 d = 2.5... - Page 9 4-wire model, connected to current transformer 4-wire model, connected directly 4-wire model, connected to current and voltage transformer 4-wire model, connected to current and voltage transformer (3 voltage transformers – superposed circuit with 2 current transformers) 4-wire model, connected to current and voltage transformer (superposed circuit with 2 current transformers)
-
Page 10: General Description
3 General description The DHZ is a digital single or dual-tariff meter for measuring positive and negative active energy in 2-, 3- and 4-wire networks. The tariff switching is controlled via an external control input. The applications for the DHZ are primarily the recording of energy data in industrial and building technology, switchgear construction and use in the energy supply sector. -
Page 11: Standards And Regulations
4 Standards and regulations DIN EN 14908-1, -2, Data Communication for Building Automation and -3, -4 Building Management (LON) DIN EN 13757-2, -3 Communication Systems for Meters and their Remote Reading (M-BUS), Compatible Extension of EN 1434-3:1997 DIN EN 50470-1 AC Electricity Meters –... -
Page 12: Housing, Control And Display Elements
Housing, control and display elements 5.1 Overview 9 10 11 12 16 17 Figure 2: Housing, control and display elements Designation Hinged terminal cover LC Display Lead seal hole Neuron ID number (only on meters with LON interface) Protection class II Power network and load classification See enclosed pack Backstop or two-direction meter (... -
Page 13: Lc Display
5.2 LC Display The meter display is a liquid crystal display (LCD) with the following layout: Figure 3: Layout of display Description Phase display L1, L2, L3 illuminated: Phase voltages are present L1, L2, L3 blinking: Phase sequence of voltage is incorrect Display of the active tariff Tariff 1 is active Tariff 2 is active... -
Page 14: Technical Description
6 Technical description 6.1 Technical data Transformer meter Direct measuring meter 5ll1 A / 5 + 1 A and 1 A 5(65) A / 0.25 – 5(65) A 4-wire meter 3x230/400 V, 3x290/500 V, 3x230/400 V, 3x290/500 V Voltage 3x58/100 V, 3x63/110 V 3-wire meter 3x100 V, 3x110 V, 3x400 V, 3x500 V... -
Page 15: Operational Diagram
6.2 Operational diagram 6.2.1 Direct-measuring meter up to 65 A Figure 4: Operational diagram of direct-measuring meter 6.2.2 Transformer connected meter up to 5 A Figure 5: Operational diagram of transformer meter... -
Page 16: Inputs
6.3 Inputs The dual-tariff model of the DHZ is equipped with one control input (system voltage) for switching tariffs. Specifications System voltage 58...230 V AC (Standard) Table 5: Specifications of inputs 6.4 Outputs The DHZ is equipped with a potential-free S0 impulse output (according to DIN 43 864) or potential-free MOSFET impulse output (solid-state relay). -
Page 17: Test Led
This data is output as a standard response and can be displayed by conventional tools such as NZR-VADEV. Other parameters, such as the meter configuration or the editing data, can only be read via manufacturer-specific M-Bus telegrams, such as those supported by the NZR M-Tool. -
Page 18: Rs485 Interface
6.5.3 RS485 interface The electric interface RS485 is a symmetrical two-wire interface (half duplex) and is designed according to TIA/EIA-485 / ITU-T V.11. The data protocol is the M-Bus protocol. The following parameters can be transmitted via the RS485 interface: - Manufacturer ID, optional/freely selectable - Medium - Primary and secondary address of M-Bus... -
Page 19: Battery
6.6 Battery The DHZ can optionally be equipped with an internal battery, which makes it possible to read the meter in voltage-free state. If the meter is operated continuously by battery, the life of the battery is at least 30 hours; in case of voltage-free reading once every month (approximately 5 minutes), the battery will last about 30 years. -
Page 20: Operation Of The Meter
7 Operation of the meter The DHZ is operated via a mechanical button (push button), which is used to control the display and make settings in the editing menu. If the meter is equipped with a battery, the standard menu in the display can be opened when the unit is voltage-free. The test mode, the address menu (on meters with an electric interface) and the editing menu are then not available, however. -
Page 21: Standard Menu
7.1.1 Standard menu In normal operation of the meter, the standard menu is active. The energy value of the active tariff is displayed (standard display). Pressing the button briefly switches to the next menu item. At the end of the standard menu it is possible to switch to test mode, the address menu or to edit mode by holding down the button. - Page 22 Continuation of standard menu U-transformer constant (only for transformer meters) I-transformer constant (only for transformer meters) Power P for all phases Power P for phase 1 In case of negative power display the current transformer connection L1 (terminals 1-3) must be checked. Power P for phase 2 In case of negative power display...
-
Page 23: Test Mode
Continuation of standard menu Current I for phase 3 Output constant in Imp./kWh (only for meters with S0 output) Impulse length in seconds (only for meters with S0 output) Primary address (only for meters with M-BUS/RS485 interface) Secondary address (only for meters with M-BUS/RS485 interface) Baud rate M-BUS (only for meters with... -
Page 24: Test Mode (Only For Calibration)
7.1.2 Test mode (only for calibration) A blinking star in the display indicates that the meter is in test mode. In the standard display of the test mode, if configured, the two tariff registers (T1 and T2) of the currently active energy direction or the last active energy direction are displayed. In a two-direction meter, the last active energy direction is displayed in idle state by a blinking energy direction arrow +P or -P. - Page 25 Continuation of test mode Tariff 1, negative active energy (if configured) Tariff 2, negative active energy (if configured) U-transformer constant (only for transformer meters) I-transformer constant (only for transformer meters) Output constant in Imp./kWh (only for meters with S0-Ausgang) Impulse length in seconds (only for meters with S0-Ausgang) Primary address...
-
Page 26: Address Menu
Continuation of test mode Activation of the to next menu item address menu enter address menu (see Chapter 7.1.3 Address menu) Activation of to standard display edit mode enter edit mode (see Chapter 7.1.4 Edit mode) Table 10: Test mode 7.1.3 Address menu The address menu is available only if the meter is equipped with an M-Bus or RS485 interface. -
Page 27: Address Menu
Editing example: In the following table the value for the primary address is changed by way of example from 001 to 002. The same procedure is used for changing the secondary address and the baud rate. Address menu Menu item Display Button (Pressing the button switches... -
Page 28: Edit Menu
7.1.4 Edit menu The edit menu is available only for non-calibrated meters. After calibration of the meter, the values can no longer be changed in the edit menu. The status of the edit menu is indicated by a hand symbol in the display. blinking hand symbol: edit mode is active, the data can be edited continuously illuminated hand symbol: edit mode is deactivated, but can be activated with a password if the password function is configured... - Page 29 e) Impulse duration The impulse duration can be set to 30 ms, 50ms or 100 ms, depending on the impulse value. 30 ms (f = 16.7 Hz) 50 ms (f = 10 Hz) 100 ms (f = 5 Hz) In the case of a primary impulse output, the impulse value and the impulse duration cannot be changed.
- Page 30 Edit mode Menu item Display Button (Pressing the button switches to the next menu item, unless otherwise indicated) Editing of first digit increase digit by 1 (digit blinks) edit next digit Editing of second digit increase digit by 1 (digit blinks) edit next digit Editing of second digit increase digit by 1...
- Page 31 Output constant in to next menu item Imp./kWh (only for meters with edit value secondary output) Impulse length in seconds to next menu item (only for meters with secondary output) edit value Continued on next page Continuation of edit mode Exit test mode to next menu item and switch to standard...
-
Page 32: Appendix
8 Appendix 8.1 EC Declaration of Conformity The manufacturer Nordwestdeutsche Zählerrevision Ing. Aug. Knemeyer GmbH & Co. KG Heideweg 33 D-49196 Bad Laer hereby declares that the following products Product designation: Electricity meters DHZ… conform to the stipulations of EC Directive 93/68/EEC. Declaration for EMC Directive (89/336/EEC) The electricity meters comply with the requirements of EC Directive "Electromagnetic Compatibility"... -
Page 33: Declaration Of Conformity For The Ec Prototype Certificate
8.2 Declaration of Conformity for the EC Prototype Certificate The manufacturer Nordwestdeutsche Zählerrevision Ing. Aug. Knemeyer GmbH & Co. KG Heideweg 33 D- 49196 Bad Laer hereby declares that the following products Product designation: Electricity meters DHZ… conform to the EC Prototype Certificate DE-07-MI003-PTB011. Declaration for Directive 2004/22/EC The electricity meters comply with the requirements of Directive 2004/22/EC of the European Parliament and of the Council of March 31, 2004 on Measuring Devices (Official Gazette L 135, p.
Need help?
Do you have a question about the DHZ Series and is the answer not in the manual?
Questions and answers