Contrel EMM-mD3m-TT Instruction Manual

INSTRUCTION MANUAL
IM391-U v0.7
EMM-µD3m-TT
EMM-µD3m-485-TT
DIGITAL MULTIFUNCTION METER FOR ELECTRICAL PARAMETERS
GENERAL
The digital multimeters series EMM-µD3m allow monitoring the main electrical parameters
present on a distribution line. The local display of the various electrical parameters is carried out
by 3 displays with red LED, granting a good and simultaneous reading of various values. A
simple front panel completes the intuitive selection of several electrical parameters, in order to
provide full information.
This instruments have a active energy counter for each phase (three single phase energy
counters), separated for positive (exported) and negative (imported) plus the counters for
system energy active (exported / imported) and reactive.
These instruments store and display several parameters (see table STORED VALUES (max/max-avg
PARAMETERS section.
The multifunction meters EMM replace in a unique device, all the functions of voltmeters, ammeters, energy meters,
cosphimeters, wattmeter's, varmeters, hour meters and frequency meters. This gives a great economic saving, by reducing
space and time, optimising also the purchase management of instruments, since one model meets most demanding
requirements for local measuring in electrical boards, switch-boards, MCC's, Gen-sets, etc.
AVAILABLE TYPES
Among the large range of the EMM multimeters family, find here below the available EMM-µD3m-TT types:
EMM-µD3m-TT base version.
EMM-µD3m-485-TT as EMM-µD3m-TT but with RS485 port.
The auxiliary supply for all types, is available with following voltages:
- 230V (rated) 50-60Hz
- 110V (rated) 50-60Hz
- 400V (rated) 50-60Hz
OPTIONS
Options: Auxiliary supply and measuring voltages, other than standard (under request)
TT or TTA current sensors to choose between available models
INTRODUCTION
The auxiliary supply is connected to 2 terminals, separated from the measuring voltage inputs.
The current inputs are fitted only for TT-sensors series.
No other types of transducers or CT can be connected to the current inputs of this instruments. The multimeter is
shipped with current inputs configured for the TT-sensor and cannot be changed by the user.
All types can be set to have energy counters operating in two modes:
- Bidirectional counters mode, with energy counters to count imported and exported active energy
 (
/
- Total / partial counters mode, with energy totalize and resettable counters; in this mode ONLY the exported energy is
counted
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EMM-µD3m-TT EMM-µD3m-485-TT
standard version
optional version
optional version
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instruction manual
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