AHM1 / AHM3 panel-mounted 96×96 mm network analyzers with memory and communication modules
Country: Spain · Model: AHM1 / AHM3
The AHM1 and AHM3 three-phase panel analyzers in a 96×96 mm DIN case are rated for 3×400/690 V AC and meter active energy to class 0.5S and reactive energy to class 2. They are cut into the doors of incoming and distribution boards of 0.4–0.69 kV networks at industrial plants, in commercial buildings and on ships.
- Rated voltage
- 3×400/690 V AC
- Rated current
- 1 A / 5 A (via CT)
- Accuracy class, active energy
- 0.5S
- Accuracy class, reactive energy
- 2
Technical specifications
| Rated voltage | 3×400/690 V AC |
|---|---|
| Rated current | 1 A / 5 A (via CT) |
| Accuracy class, active energy | 0.5S |
| Accuracy class, reactive energy | 2 |
| Harmonics | up to the 31st, THD U and I |
| Memory | AHM1 — 8 MB (up to 3 years of records); AHM3 — DM1 module 8 MB |
| Communication | RS485 Modbus RTU; Ethernet Modbus TCP, BACnet (AHM1); Wi-Fi, GPRS (AHM3 modules) |
| Supply | 80–270 V AC/DC (AHM3) |
| Case | DIN 96×96 mm, front IP65 (AHM1) |
| Modularity | AHM3 — up to 4 additional modules at once |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The device measures voltage, current, frequency, active, reactive and apparent power, power factor and energy in four quadrants, and records maximum demand in A, kW, kVA and kvar. The current inputs work from CTs with a 1 A or 5 A secondary, and the rating is set in software. The voltage and current error is 0.2 % at 25 °C, and harmonics are calculated up to the 31st together with THD. Among the AHM1 versions there are the AHM1B, AHM1BC, the AHM1-RC for Rogowski coils, the AHM1-4CTS with 4 current inputs including neutral, the tariff AHM1-T, and a version with TCP/IP and BACnet, and the front panel is IP65. The AHM3 is built on a modular principle, has a 250 V/5 A relay output and accepts up to 4 of 13 modules at once, including the Ethernet Modbus/TCP DM11 and the RS485 DM7. The AHM3-SMTP version sends events by e-mail, and CE declarations have been issued for the devices.
How to choose
The AHM1 keeps its own archive and in some versions outputs data over TCP/IP or BACnet, while the modular AHM3 is assembled for the task from a recorder, Wi-Fi, GPRS or RS485. For reports under IEC 61000-4-30 class A with 0.2S metering the AQM2 with 2 GB of memory is better, and a board with dozens of outgoing lines is covered by the SAM3000 set for 32 three-phase circuits.
Request a price and lead time
AHM1 / AHM3 panel-mounted 96×96 mm network analyzers with memory and communication modules. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How much data does the AHM1 keep in its built-in memory?
The 8 MB memory holds up to 32 000 records of instantaneous values or up to 3 years of records of 17 configurable parameters at a 15-minute interval. The AHM1-LP version records an annual load profile.
What overload can the current inputs of the AHM1 and AHM3 withstand?
The input withstands 2 In continuously, 10 In for 5 s and 20 In for 1 s, which gives a margin for inrush currents and short circuits in the network.
Is the AHM3 suitable for a remote site without a cable link?
Yes, the DM13 module sends data over GPRS and sends SMS, the DM12 connects the device to Wi-Fi, and the 8 MB DM1 recorder with a real-time clock stores data between communication sessions.
What voltage does the AHM3 run from?
The auxiliary supply of the AHM3 is 80–270 V AC/DC, so the device can be connected both to an AC network and to a DC control supply circuit.
Similar products
REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.