UNICOM 300

The UNICOM 300 is a 2G/4G CAT M1 modem and data logger, designed for easy installation and reliable data communication. It has been specially developed for accurate logging and transmission of gas consumption data.

Thanks to its robust housing and patented corrosion protection, the UNICOM 300 operates reliably outdoors and under harsh environmental conditions.

Main Features

• Direct connection to a gas meter or an electronic volume conversion instrument, such as the UNIGAS 300
• Registration of two pulse inputs and an encoder (incl. automatic initialization and B-telegrams)
• Two pulse outputs for transmitting consumption information to end users
• Data storage every five minutes, up to 155 days
• Serial port for reading the UNIGAS 300
• Plug & Play – fully pre-programmed for quick field deployment

Communication

• 2G/4G modem with fallback from 4G to 2G
• Supports TCP-pull and FTP-push
• Equipped with an external antenna (other wired antennas can easily be installed when signal strength is low)

Versions

🔋 Battery-powered

• Complies with ATEX Zone 0 requirements
• Can be installed directly next to the gas meter or the volume conversion instrument
• Especially suitable for applications with once-daily data transmission
• Smart power management (intelligent call windows + NTP synchronization)
• Battery life up to 10 years

⚡ Mains-powered

• Ideal for installations with frequent data readings
• Available in two variants:
  • UNICOM 300 – for the safe zone, certified for connection to devices in ATEX Zone 0
  • UNICOM 300 Ex ec – more robust housing, suitable for installation in ATEX Zone 2
• Optional backup battery: records meter readings for up to 1,000 hours during power failure

Remote Service

Remote service for the UNICOM 300 – fast, simple and reliable.
With our remote service, your UNICOM 300 remains fully operational at all times:

• Direct contact with experts – through our service hotline you receive immediate support from experienced technicians
• Flexible configuration – settings can easily be changed remotely, without the need for an on-site visit
• Always up to date – regular firmware updates keep your UNICOM 300 technically current and sustainably deployable

UNICOM 300 Features (all versions)

• 2G/4G CAT M1 modem
• Time synchronization via NTP or reading system
• Data transmission via TCP-pull or FTP-push
• Pure Push operation possible via FTP/NTP combination
• Intrinsically safe circuits can be connected to devices within ATEX Zone 0, 1 and 2
• No Ex-grounding required
• Compatible encoders: Itron, GWF, Honeywell, Pietro Fiorentini, FMG, GFO, RMA and RMG
• Pulse outputs can be connected without an additional Ex-safety interface
• Interval logger storing 5-minute data for 155 days
• Suitable for serial reading of UNIGAS 61E / UNIGAS 300
• Protocol: IEC 62056-21, Mode C VDEW 2.0 (also known as 1107)
• Easy installation, prepared for flange, pipe or wall mounting
• Optional external cap or rod cable antenna
• 8 status LEDs for power, status, network and communication

UNICOM 300 Battery-powered Version

• Glass-fiber-reinforced polyester housing, 194 × 120 × 70 mm
• Installation in ATEX Zone 0 possible, together with the UNIGAS 300
• IP65 protection, suitable for outdoor installation
• Battery life up to 10 years with daily reading (depending on application and number of battery packs)
• Energy-efficient; two separately configurable call windows
• Call window control possible via UNIGAS 300
• Part No. N511

Documentation – Battery-powered Version N511

• UNICOM 300 Installation and user manual N511
• EU Declaration of Conformity and safety instructions N511
• ATEX Certificate KIWA N5X

UNICOM 300 Mains-powered Version

• Glass-fiber-reinforced polyester housing, 194 × 120 × 70 mm
• Installation in the safe zone
• IP65 protection, suitable for outdoor installation
• Power supply 230 VAC or 24 VDC (15 V – 32 V)
• Logging functionality maintained by optional backup battery (1,000 hours)
• Part No. N531

Documentation – Mains-powered Version N531

• UNICOM 300 Installation and user manual N531
• EU Declaration of Conformity and safety instructions N531
• ATEX Certificate KIWA N531

UNICOM 300 Ex ec Mains-powered Version

• Extra-robust housing made of glass-fiber-reinforced polycarbonate, 230 × 140 × 95 mm
• Installation in ATEX Zone 2: II (1) 3G Ex ec [ia IIC Ga] IIB T3 Gc
• IP66 protection, suitable for outdoor installation
• Temperature range: −20 °C to +60 °C
• Power supply 230 VAC or 24 VDC (15 V – 30 V)
• Logging functionality maintained by optional backup battery (1,000 hours)
• Part No. N551 – without backup battery
• Part No. N561 – with backup battery

Documentation – Ex ec Mains-powered Version N551–N561

• UNICOM 300 Ex ec – Installation and User Manual N551–N561
• EU Declaration of Conformity and safety instructions N551-561
• ATEX Certificate DEKRA N551–N561

UNICOM 300 general documentation

• UNICOM 300 Brochure
• UNICOM 300 mounting guide
• UNICOM 300 Mounting brackets & instructions
• UNICOM 300 Installation manual external antenne