Total active energy(kWh)
Display format:0000.00
Import active energy(kWh)
Display format: 0000.00
Export active energy(kWh)
Display format: 0000.00
Voltage (V)
Current (A)
Active power (W)
Frequency (F)
Power factor (PF)
Modbus Address or Primary address
Default: 001Baudrate Default : 9600bps
Parity
Even/Odd/None are optional
Primary current 1A-9999A
Default: 5 (sample shows 100A)
CT 2
Secondary current 5A
Software version
1. Introduction
This document provides operating, maintenance and installation instructions
of A-45 series. The unit measures and displays the characteristics of single
phase two wires application. It provides voltage, current, power, frequency,
power factor and energy information. A-45 series has both direct connect types
and 5A CT operated types. The direct connect type can work with direct load
45A. Two Pulse outputs and 1 remote communication port is provided.
This series covers 3 models:
2.Specifications
2.1 General Specifications
Voltage AC (Un).........................
Voltage Range...........................
Current Input............................
Power consumption.................
Frequency.................................
AC voltage withstand...............
Impulse voltage withstand......
Overcurrent withstand............
Pulse output rate......................
Display........................................
Max reading...............................
230V
176~276V AC
0.25~5(6)A
<2W/10VA
50/60Hz (50Hz only for MID version)
4KV for 1 minute
6KV-1.2uS wavform
20Imax for 0.01s
1000imp/kWh (default)
100/10/1 imp/kWh/kVarh (configurable)
LCD with white backlit
999999 kWh
2.2 Accuracy
Voltage...................................
Current..................................
Frequency..............................
Power factor..........................
Active power..........................
Reactive power......................
Apparent power....................
Active energy.........................
.........................
Reactive energy.....................
0.5% of range maximum
0.5% of nominal
0.2% of mid-frequency
1% of Unity
1% of range maximum
1% of range maximum
1% of range maximum
Class 1 IEC62053-21
Class B EN50470-3 (MID product only)
1% of range maximum
2.3 Environment
Operating temperature...............................
Storage and transportation temperature.
Reference temperature...............................
Relative humidity..........................................
Altitude..........................................................
Warm up time...............................................
Mechanical Environment.............................
Electromagnetic environment....................
Degree of pollution......................................
-25
°c
to +55
°c
-40
°c
to +70
°c
23
°c
±2
°c
0 to 95%, non-condensing
up to 2000m
3s
M1
E2
2
2.4 Mechanics
Din rail dimensions................
Mounting.................................
Sealing.....................................
Material...................................
18x119x62 (WxHxD) DIN 43880 DIN rail
35mm
IP51 (indoor)
self-extinguishing UL94V-0
3. Display
3.1 Initialization Display
When it is powered on, the meter will initialize and do self-checking.
1
2
3
Full Screen. It will last for 3 seconds
Software version. It will last for 3 seconds
Total active energy (kWh)
After the self-checking program, the meter display will show the total active
energy (kWh)
3.2 Scroll Display Button
After the self-checking program, the meter display will show the total active
energy (kWh)
Click the button, the LCD display will scroll the
measurements.
1
1-1
1-2
2
3
4
5
6
7
8
9
10
11
12
Model
A-45P
A-45M
A-45CTM
Current Input
Direct connect 45A
Direct connect 45A
5A CT operated
Communication
Pulse output only
Pulse plus Modbus
Pulse plus Modbus
A-45 SERIES
MID Approved B and D
Measures kWh, Kvarh, KW, Kvar,
KVA, PF, Hz, dmd, V, A, etc.
Bi-directional measurement IMP
& EXP
Two pulse outputs
RS485 Modbus
Din Rail one Module width (18mm)
45A direct connected
5 Amp C.T operated
Better than Class 1 accuracy
Autometers Systems Ltd. 4B Albany Road, Chorlton-cum-Hardy, Manchester M21 0AW
Email: [email protected] Phone: 00(44) 0161 861 9056 Fax: 0161 881 3745 www.autometers.co.uk
Ref. A-45Series.06.2021
Product development is continuous and Autometers Systems Limited reserves the right to make alterations and manufacture without notice. Products as
delivered may therefor differ from the descriptions and illustrations in this publication
