Metermade N3-001 - Ultra low power, cellular, flow-metering data logger
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Sold by ConnectM2M Ltd
Description
The Metermade® N3 Meter Interface Unit (MIU) is an ultra-low power device, designed to operate in the field for up to 5-10 years on a single set of batteries (based on one report per day). It’s housing meets the IP68 rating, permitting direct installation onto a flow meter and is capable of surviving submersion to a depth of four metres for four days.
The Metermade® N3’s flexible device configuration enables the measurement of digital and pulse counter signals. This data is stored internally on non-volatile flash memory with upstream communications provided using an internal 4G cellular modem, permitting use on CAT-M1and NB-IoT networks worldwide.
The Metermade® N3 is the lowest cost option to provide highly reliable billing revenue data, directly to a host database using the industry standardDNP3 or FTP protocol. Remote configuration and device management is supported via leading industry SCADA applications, remote firmware download capability is provided via FTP file transfer.
The N3 is equipped with both digital inputs and a user configurable Modbus Master communications port, providing interface capability with virtually all flow meters in the market place.
The N3 provides Forward/Reverse/Nett Totalisers and instantaneous flow calculation from Digital Inputs. User configurable Modbus table permits download of pre-defined or ad-hoc Modbus data table profiles to support smart flow meters.
A ‘magnetic swipe’ function is provided to allow on-demand meter reads and data updates by field personnel.
Specifications
Approvals
- Build: RoHs
- Production: Proudly made in Australia
- Standards: RCM (AUST/NZ), EMC compliance, other export standards on request
Factory Accessories
- Optional Accessories: A comprehensive range of factory manufactured or sourced accessories to ensure reliable and swift solution deployment. Visit 37s.com.au
- Standard Accessories: Each device is supplied with a battery, stainless steel quick release mounting bracket and installation accessories kit
General
- Current Draw: 50 µA sleep, 5 mA active, 200 mA cell communications, 2 A (peak) cell network detect, (measured at 3.6V DC)
- Environmental: IP68 (4 metres depth/4 days duration)
- Mounting: 90 mm (h) x 125 mm (d, nominal) / 155 mm (d, maximum), supplied with stainless steel mounting bracket
- Programming: Windows based Configurator M+ configuration software, Remote device management via DNP3, Remote firmware download via FTP, local programming port, live local diagnostics
- Real Time Clock: Internal – Year, month, day, hour, minute, second, Automatic DNP3 time synchronisation from DNP3 master, Automatic cellular network time sync when using FTP data export mode
- Supply Voltage: 3.5 – 8.5V DC, High-capacity, internal Lithium battery pack (field replaceable)
- Temperature: –20°C to +85°C Celsius
IO Interfaces
- Digital Input: 2 x low-current dry-contact binary inputs (non-isolated), each input supports pulse counting, up to 3Khz (sleep/wake mode dependant), Forward/Reverse/Nett Totalisers with 32-bit rollover
- Serial Comms: 1 x Modbus Master (3-Wire RS232 or 2-Wire RS485, user selectable)
- System Input: Internal measurement of Cell Network RSSI, MIU temperature, MIU battery voltage and session status code
Telemetry
- 4G Cellular: Supports World-wide 4G/LTE Cat-M1 / NB-IoT Bands: B1, B2, B3 (1800 MHz.), B4, B5, B8, B12, B13, B18, B19, B20, B25, B26, B27, B28 (700MHz.), B66, B71, B85. Class 3 Output Power (+23dBm)
- Antenna: Internal antenna / External SMA Female connector (user selectable)
- Data Protocols: DNP3.0 Slave unsolicited mode, FTP data export
- Host Support: True TCP support to DNP host (supports three Master IP addresses)
- Security: CHAP or PAP authentication, SIM credentials, configurable username, password and APN, built in IP firewall, 512-Bit AES Encrypted firmware download
- SIM Card: 1.8 and 3V UICC (Standard size SIM card)
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