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Summary of Contents for EDMI Mk7Mi
- Page 1 Mk7Mi Single Phase Meter Operation & Maintenance Manual Mk7Mi Energy Meter Ver. (TNB) V1.0 25/1/2022 External...
- Page 2 Mk7Mi Energy Meter PAGE 2 OF 30...
- Page 3 The information contained in this document is proprietary and exclusive property of EDMI Limited except as otherwise indicated. No part of this document, in whole or in part, may be reproduced, stored, transmitted, shared or used for design purposes without the prior written permission of EDMI Limited.
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Page 4: Table Of Contents
Table of Contents Introduction ............................7 Using this Manual ......................... 7 Conventions Used in this Manual ....................7 For More Information ........................7 Mk7Mi Meter ............................8 Dimensions and Mounting ......................8 2.1.1 Hanging Extension ........................ 9 External Features ........................11 Under the Terminal Cover ...................... - Page 5 LEDs ............................23 3.3.1 Energy pulse LEDs ......................23 3.3.2 Functional LEDs ......................... 23 System Specifications ......................... 24 Normative References ......................... 26 Load-switching (Relay) Parameters .................... 26 Appendix ..............................28 Mk7Mi Single Phase Meter Operation & Maintenance PAGE 5 OF 30 Manual...
- Page 6 Figure 2.3 Mk7Mi extension clip-on ......................9 Figure 2.4 Mk7Mi Mounting Points ......................10 Figure 2.5 Mk7Mi Front View with Terminal Cover Fitted ............... 11 Figure 2.6 Terminal Block View (after removing Terminal Cover of Meter) ..........12 Figure 2.7 Terminal Block Diagram ......................13 Figure 3.1 Mk7Mi standard version LCD ....................
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Page 7: Introduction
The supply to the metering equipment should be isolated prior to installation or removal. On a simple level, EDMI smart meters are energy meters, measuring the basic quantities of Wh and varh. The meter records consumption data in a load survey, and as time of use data. The meter can also measure a wide variety of instantaneous quantities. -
Page 8: Mk7Mi Meter
2 Mk7Mi Meter This chapter covers the basic installation and physical features of the Mk7Mi meter. 2.1 Dimensions and Mounting Figure 2.1 show a general view of the Mk7Mi meter fitted with a terminal cover. Figure 2.1 Mk7Mi Meter Mk7Mi Energy Meter... -
Page 9: Hanging Extension
Figure 2.2 below gives detailed dimensions for the meter when using the standard terminal cover. Figure 2.2 Mk7Mi with Standard Terminal Cover 2.1.1 Hanging Extension The meter’s top mounting hole can be extended beyond the top of the meter using an extension clip-on. -
Page 10: Figure 2.4 Mk7Mi Mounting Points
4. Insert the remaining two screws (meter base, under the terminal cover) to hold the meter securely. EDMI recommends at least 2cm of air clearance from the Mk7Mi to the meter cabinet or other equipment. Nearby heat-generating equipment should be located such that no equipment’s ambient temperature limit is exceeded. -
Page 11: External Features
2.2 External Features Below figure shows a view of the front of the meter (the specifics of a given label will vary). Figure 2.5 Mk7Mi Front View with Terminal Cover Fitted The major parts visible in above figure include: •... -
Page 12: Under The Terminal Cover
All of the connections to the meter occur under the terminal cover. figures 2.7 shows the terminals available on a meter with 1 I/O(Optional, up to 3) and RJ45. Figure 2.6 Terminal Block View (after removing Terminal Cover of Meter) Mk7Mi Energy Meter PAGE 12 OF 30... -
Page 13: Figure 2.7 Terminal Block Diagram
Figure 2.7 Terminal Block Diagram Figure 2.8 and Table 2.1 list the terminal block connections. All terminals numbered left to right. R J 1 Figure 2.8 Terminal Block Connection Mk7Mi Single Phase Meter Operation & Maintenance PAGE 13 OF 30 Manual... -
Page 14: Terminal Cover Tamper Detect
(figure 2.9). The meter can generate an event and an alarm in the log when the switch is released by removing the terminal cover. Figure 2.9 Terminal Cover Tamper Detect Button Mk7Mi Energy Meter PAGE 14 OF 30... -
Page 15: Connection In Detail
Depending on the configuration ordered from the factory, a Mk7Mi meter may be fitted with an internal 100A disconnect relay, which interrupts the active connection. When fitted, the disconnect relay is UC3 compliant at 100A (SCS). - Page 16 Cable Size Cable Size Main Standard Blade Table 2.3 Mk7Mi Cable Sizing and Terminal Torque If the equipment is used in a manner not specified by the manufacturer, the equipment’s function and internal protectino may be impaired. Mk7Mi Energy Meter...
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Page 17: Wan Port
Meters fitted with serial comm have Tx, Rx and GND line, it is used with external serial device without handshaking signal. Optional 12V power, 6W supply can be fitted to power an external modem. This option is used to pair with EDMI certified cellular modem. RJ45 Pin... -
Page 18: Flag Port
Where frequent power outage is expected in the operating condition, EDMI recommend the meter to be fitted with both supercap and external battery, and supercap usage priority over battery to preserve the battery life for as long as possible. -
Page 19: Lcd/Scroll Button
The meter is not designed for field servicing and has no user-serviceable parts. EDMI does not allow any preventive and repair work to be done by external parties. All repair works for meters will be done at EDMI Service Centers. The meter has no internal fuses. For meter re-calibration or refurbishment, contact EDMI or a local agent. -
Page 20: Lcd Display
3.1 Mk7Mi LCD Figure 3.1 Mk7Mi standard version LCD 3.1.1 Display Pages/Screens The meter displays data on the LCD as a series of pages or screens. Each screen of data shows a single quantity value from the meter. -
Page 21: Select Button
Move from Set A to Set B by pressing and holding the Select button for one second. While in Set B, the meter will display the Set B LCD label (non-blinking). • Set C Mk7Mi Single Phase Meter Operation & Maintenance PAGE 21 OF 30 Manual... -
Page 22: Default Display
If there is an LCD setup, the LCD will display the first display item in display set A when the meter is powered up. 3.2 Display Organisation Mk7Mi LCD display icons are described in the following table. LCD Icon Description Display Meter’s data in Main display area. -
Page 23: Leds
The meter can have 2 LEDs for meter firmware function. Usually one will be configurated as Alarm LED indicates Meter’s tamper / alarm condition depending on Meter’s configuration. Mk7Mi Single Phase Meter Operation & Maintenance PAGE 23 OF 30 Manual... -
Page 24: System Specifications
IEC 62055-31-Annex C, utilization Category 3 (UC3) (suitable for meter’s Imax=100A application) Internal Clock accuracy (at 23 15s / month. Variance: 0.01 * (T-23°C) s / day/ °C Battery Lifetime (meter-powered) = > 15 years Lifetime (meter unpowered) = 5 years Mk7Mi Energy Meter PAGE 24 OF 30... - Page 25 IEC 62053-21 and 62053-23. Magnet Detection Min 200mT (toggle type) Modem Power (WAN Interface) Nominal 12V +/- 10% V Dimensions 220.47 mm (with terminal cover) x 125.5 mm x 69.64 mm Mk7Mi Single Phase Meter Operation & Maintenance PAGE 25 OF 30 Manual...
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Page 26: Normative References
Relay type Internal built-in latching relay Load-switching compliance Complies with IEC 62055-31 UC1,UC2,UC3 standard Coil’s rated voltage Rated operating voltage:12VDC(energizing duration(pulse)of the coil is 100ms) Operating voltage range : 80%~150% of rated operating voltage Mk7Mi Energy Meter PAGE 26 OF 30... - Page 27 Contact Voltage Drop ≤ 100mV 50-60A ≤ 80mV ≤ 60mV 100A ≤ 45mV 200A Electrical life/ endurance ≥ 5000 times (switching cycles) Temperature range -40 ℃ to +85 ℃ Mk7Mi Single Phase Meter Operation & Maintenance PAGE 27 OF 30 Manual...
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Page 28: Appendix
Appendix Mk7Mi Block Diagram Mk7Mi Energy Meter PAGE 28 OF 30... -
Page 29: Document Revision History
Document Revision History Name Description of Change Date Version First Draft Yap Wee Pin 13/10/2020 V0.1 Qiu Pengxuan Amendment 25/01/2022 V1.0 Mk7Mi Single Phase Meter Operation & Maintenance PAGE 29 OF 30 Manual... - Page 30 End of Manual Mk7Mi Energy Meter PAGE 30 OF 30...
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