ENG
13
"Carel emeter" +0300044IE rel. 1.5 - 10.11.2017
emeter3
1.1 Product features
• Class B (kWh) in accordance with EN 50470-3
• Class 1 (kWh) in accordance with EN 62053-21
• Class 2 (kVarh) in accordance with EN 62053-23
• Accuracy ±0.5 RDG (current/voltage)
• Energy meter
• Instant variable readings: 3 DGT
• Energy reading: 6+1 DGT
• System variables: W, var, cosM, Hz, phase sequence
• Single-phase variables: VLL, VLN, A, cosM
• Energy measurements: total kWh and kVarh
• TRMS since wave distortion measurements (voltage/current)
• Self-powered
• Dimensions: 4 DIN modules and 72x72mm
• Protection index (front): IP50
• Display and programming adaptable to the application
• Optional detachable display for programming adaptable to the application (cod. Carel MTOPZD0000)
• Multi-purpose housing: for both DIN rail and panel mounting
1.2 Product description
Three-phase energy meter with detachable front display unit. The same unit can be used either as a DIN-rail mounting or a panel mounting energy meter.
This energy meter is especially suitable for both active and reactive energy metering for cost allocation, but also for measuring and relaying the
main
electrical parameters; with IP50 (front) ingress protection. Current measurements carried out by external current transformers, and voltage measurements
carried out either by direct connection or by voltage transformers. Carel emeter3 is supplied as standard with a pulse output for active energy retransmission.
Carel P/N Description
MT300W1100 Three-phase energy meter without display - to be used with current transformers for power networks with neutral (max baud rate 9600 BPS)
1. INTRODUCTION
2. GENERAL CARACTERISTICS
2.1 Input specifications
Measuring inputs
Current type
System: 3-phase; Not isolated (shunt inputs).
Note: the external current transformers can be earthed individually.
Current range (using CT)5 A from CT
Voltage 3x230 (400) V, three-phase plus neutral
Accuracy (Display + RS485)
(@25°C ±5°C, RH 60%, 50 Hz) In: 5 A, Imax: 6 A; Un: from 160 to 260
VLN (277 to 450 VLL).
Current From 0.002 In to 0.2 In: ±(0.5% RDG +3DGT)From 0.2 In to Imax: ±(0.5% RDG +1DGT)
Phase-neutral voltage In the range Un: ±(0.5% RDG +1DGT)
Phase-phase voltage In the range Un: ±(1% RDG +1DGT)
Frequency Range: 50 Hz;
resolution: ±1Hz
Active power ±(1% RDG +2DGT)
Power factor ±[0.001+1%(1.000 - “cosM RDG”)].
Reactive power ±(2% RDG +2 DGT).
Active energy class B in accordance with EN 50470-1-3; class 1 in accordance with EN 62053-21.
Reactive energy class 2 in accordance with EN 62053-23; In: 5 A, Imax:
6 A; 0.1 In: 0.5 A; Start-up current: 10 mA.
Additional errors
Inuence quantities In accordance with EN 62053-21, EN 50470-1-3, EN 62053-23
Temperature drift ≤200 ppm/°C.
Sampling rate 1600 samples/s @ 50 Hz; 1900 samples/s @ 60 Hz
Display refresh time 1 second
Display
2 lines; line 1: 7 DGT, ine 2:
3 DGT or
line 1: 3 DGT + 3 DGT, line 2: 3 DGT
Type LCD, 7 mm H
Instant variable readings 3 DGT
Energy Total imported: 5+2 DGT (5 whole numbers + 2 decimals), 6+1 DGT (6 whole numbers + 1 decimal) or 7 DGT (7 whole
numbers)
Overload for instant values EEE
displayed when the value being measured exceeds the “continuous input overload” (maximum measurement
capacity).
Max. and min. indications Max. instant variables: 999 (3 DGT); energy: 9 999 999 (7 DGT)
Min. instant variables: 0; energy 0.00;