Lovato DME D305T2, Instruction Manual

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CONTENTS PAGE
Introduction ........................................................................................................................................................................................................................................................................................................................ 2
Description ......................................................................................................................................................................................................................................................................................................................... 2
Front button functions ........................................................................................................................................................................................................................................................................................................ 2
Display indications .............................................................................................................................................................................................................................................................................................................. 2
Displaying measurements ................................................................................................................................................................................................................................................................................................. 3
Main page ........................................................................................................................................................................................................................................................................................................................... 3
Front metrology LED ........................................................................................................................................................................................................................................................................................................... 3
Table of display pages ........................................................................................................................................................................................................................................................................................................ 4
Navigating between the display pages ................................................................................................................................................................................................................................................................................ 6
Energy meter indication ...................................................................................................................................................................................................................................................................................................... 7
Tariffs .................................................................................................................................................................................................................................................................................................................................. 7
Hour counter indication ...................................................................................................................................................................................................................................................................................................... 7
Limit threshold status indication (LIMx) ............................................................................................................................................................................................................................................................................. 8
Alarm indication .................................................................................................................................................................................................................................................................................................................. 8
Main menu .......................................................................................................................................................................................................................................................................................................................... 8
Parameters setting (setup) ................................................................................................................................................................................................................................................................................................. 8
Parameter table ................................................................................................................................................................................................................................................................................................................... 9
Commands menu ............................................................................................................................................................................................................................................................................................................... 12
Wiring test .......................................................................................................................................................................................................................................................................................................................... 12
Wiring diagram ................................................................................................................................................................................................................................................................................................................... 12
Terminals arrangement and mechanical dimensions (mm) ................................................................................................................................................................................................................................................ 13
Technical specifications ...................................................................................................................................................................................................................................................................................................... 14
INTRODUCTION
The three-phase energy meter with CT insertion, model DME D305T2, has been designed to combine the utmost ease of use with a wide range of advanced functions. Despite the extremely limited dimensions of the
modular housing (just 4 modules), the energy meter features the same performance as a high-level device. The backlit LCD display permits a clear and intuitive user interface. The DME D305T2 also features 2 static
outputs for pulse generation and a tariff input.
DESCRIPTION
– Three-phase energy meter
– CT insertion
– 4U (72 mm) modular construction for DIN rail
– Backlit LCD display
– 2 static outputs
– AC tariff input
– 3 navigation buttons for functions and settings
– Metrology LED for energy flow indication
– High-accuracy true root mean square (TRMS) measurement
– Active energy measurement according to EN62053-22 class 0.5s
– Active and reactive energy meters, total and by individual phase
– Total and partial energy meters that can be reset
– 1 total hour counter and 4 partial hour counters
– Programmable input (e.g. for tariff selection)
– 2-level password protection for settings
– Backup copy of original settings
– Fitting does not require tools
– Terminal covers that can be lead sealed
– Texts in 6 languages (English, Italian, French, Spanish, Portuguese, German).
KEYBOARD FUNCTIONS
s
and
t
buttons – Used to scroll between screens, select from available options on the display and change (increase/decrease) settings.
When pressed simultaneously (
s
+
t
), they are used to enter or exit the various display and setup menus.
button – Used to scroll sub-pages, confirm selected options and switch between display modes.
DISPLAY INDICATIONS
Main measurements
display
Alarm icon
Sub-page
(measurement
type) indication
Main
measurements
display
Measurement page
indication
Bar graph
Communication
active
Selected
phase(s)
indication
Bar graph full
scale
indication