Circutor AMk-ITF Manuel utilisateur
3 PHASE ENERGY ELECTRONIC METERS
AMk-ITF & AM2k-ITF
(Code 7 71 042 - 7 71 044)
INSTRUCTION MANUAL
( M 981 189 / 00 A )
(c) CIRCUTOR S.A.
----- AMk-AM2k -400 V- ELECTRONIC METERS -------- M-981 189 --- Page Nº 2
3 PHASE ACTIVE & REACTIVE ENERGY ELECTRONIC METERS
1.- BASIC INSTRUCTIONS
1.1.- Delivery spot check
This manual is issued to help all the ENERGY METERS users to install and use
them in order to get the best from them. After receiving the unit please check the
following points:
(a) Does this device corresponds to your order specifications?
(b) Check if any damage was done during the shipment process.
(c) Verify that it includes: One instruction manual .
1.2.- Safety considerations
This manual contains information and warnings that must be followed for operating
the ENERGY METER safely and maintaining the instrument in a safe operating
condition.
2.- MAIN CHARACTERISTICS
Three phase electric energy meters for low voltage networks at 400 V a.c. , provided
with mechanical rotary display, that are designed to measure the electric energy
consumed by any three phase circuit ( 3 or 4 wires ). Those are suitable for such
installations where a partial energy consumption analysis is required. Direct
connection for the voltage signal ( 3 x 400 V a.c ) and current signal input through
external .../5A current transformers.
----- AMk-AM2k -400 V- ELECTRONIC METERS -------- M-981 189 --- Page Nº 3
AVAILABLE MODELS:
- Meter type AMk- ITF (code 7 71 042 ) :
3 phase active energy meter single tariff, input isolated by transformer
( ... 5 A a.c. ). Display by means of an electromecanic integrating meter in kW.h.
- Meter type AM2k- ITF (code 7 71 044 ) :
3 phase active energy meter double tariff, input isolated by transformer ( ... 5 A a.c. )
Display by means of two electromecanic integrating meters in kW.h. The energy will
be accumulated by one or the another meter according to the state of the “tariff
changing” input provided in the own meter.
Common features:
- All energy meters have one pulse outputs. This output permit a remote
transmission of the measurement of the kW.h consumed.
Pulses: open collector type : 100 ms of duration - 24 V d.c. / 30 mA.
Ratio : 1 pulse / 1 kW.h
- Current transformer ratio is user-selected by means of mini-dips in the rear side
of the energy meter. SEE PARAGRAPH 3.1.-
- All energy meters operate over two quadrants: consumed power.
----- AMk-AM2k -400 V- ELECTRONIC METERS -------- M-981 189 --- Page Nº 4
- The meter has a LEDS at its frontal cover :
•a Led of “POWER” : indicates that the meter is connect to supply.
•a Led ( two for the AM2-ITF model ) for the metrology control and the energy
flow visualisation. Such led blinks each 1 kW. h
Particular features of the double tariff meter ( AM2 - ITF )
- It has an electric input for "tariff change action", that set the energy to be
accumulated by one or another meter. This is an optocoupled input ( 4 kV with
respect to the electric network ).
The first tariff is assigned by voltage lack between those terminals. Second tariff is
selected by applying a 230 Va.c. ±10 voltage between those terminals.
----- AMk-AM2k -400 V- ELECTRONIC METERS -------- M-981 189 --- Page Nº 5
3.- INSTALLATION AND STARTUP
The manual you hold in your hands contains information and warnings that the user
should respect in order to guarantee a proper operation of all the instrument
functions and keep its safety conditions.
The instrument must not be powered and used until its definitive assembly on the
cabinet’s door.
Whether the instrument is not used as manufacturer’s specifications, the
protection of the instrument can be damaged.
When any protection failure is suspected to exist (for example, it presents external
visible damages), the instrument must be immediately powered off. In this case
contact a qualified service representative.
3.1.- INSTALLATION
Before applying AC power to the, check following points :
(a) Power supply is taken from own phases L2-L3 at 400 V a.c. ±15 %
----- AMk-AM2k -400 V- ELECTRONIC METERS -------- M-981 189 --- Page Nº 6
(b) Current input of 5 A a.c. ( maximum current of 6 A a.c. ).
(Overload current of 100 A for half a second).
(c) Frequency : 45 ... 65 Hz
(d) Instrument burden : 0,5 VA
(e) Operation conditions :
- Operating temperature : 0º C / +50º C
- Humidity : 25 to 75 % R.H. noncondensing
(f) Safety : Designed to meet protection class II as per EN 61010.
Mounting:
Instrument is to be mounted onto a DIN rail.
All connections keep inside the cabinet.
Note that with the instrument powered on, the terminals could be dangerous to
touching and cover opening actions or elements removal may allow accessing
dangerous parts. Therefore, the instrument must not be used until this is completely
installed.
The instrument must be connected to a power supply circuit protected with gl type
(IEC 269 ) or M type fuses rated between 0.5 and 2 A. This circuit should be
provided with an automatic switch ( ON / OFF ) or any equivalent element to
disconnect the instrument from the power supply network. The supply and measuring
voltage circuits will be both connected through a wire with a minimum cross-section
of 1 mm2. The line of the current transformer secondary will have a minimum cross-
section of 2,5 mm2.
----- AMk-AM2k -400 V- ELECTRONIC METERS -------- M-981 189 --- Page Nº 7
3.2- CURRENT TRANSFORMER RATIO
As the rear side of the meter a 22 bridges have been built-in to select the
current transformer ratio really existing in the installation :
----- AMk-AM2k -400 V- ELECTRONIC METERS -------- M-981 189 --- Page Nº 8
Configuration of the standards current transformer ratios (see table below - 400 V ):
5 / 5
10 /5
25 /5
75 /5
50 /5
100/5
125/5
150/5
200/5
9 8 7 6 5 4 3 2 1
22 <---------------------------------------------------- 1
250/5
300/5
400/5
500/5
600/5
800/5
1000/5
----- AMk-AM2k -400 V- ELECTRONIC METERS -------- M-981 189 --- Page Nº 9
3.3- ENERGY METER connection terminal
Terminal Nr Designation Concept
1+Pulse output (+) for active energy
2-- Pulse output (--) for active energy
3I1 - Current input 1S2
4 I1+ Current input 1S1
5I2 - Current input 2S2
6 I2+ Current input 2S1
7I3 - Current input 3S2
8I3 + Current input 3S1
9NNeutral N voltage input
10 VL1 Phase 1 voltage input
11 VL2 Phase 2 voltage input
12 VL3 Phase 3 voltage input
13 +AM2- ITF : a.c. voltage input for tariff change
14 -- AM2- ITF : a.c. voltage input for tariff changing
15 al 28 Not used
¡ WARNING ! Check following points:
- Correct polarity? Reverse the current transformer placed at this phase.
- Assure that L1, L2 and L3 phases coincide in voltage and current.
----- AMk-AM2k -400 V- ELECTRONIC METERS -------- M-981 189 --- Page Nº 10
3.4.- Connection drawing of the THREE PHASE ENERGY METER in a three
phase low voltage mains ( with or without neutral wire )
Ce manuel convient aux modèles suivants
1
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