Neon Remote Logger (NRL) Model 3004 & 3006

The 3004 and 3006 Neon Remote Logger NRLs are small self-contained data logger/RTU with 4 or 6 high-resolution analog channels in a compact case that connects to sensors in the field, collects readings from those sensors and either transmit the collected data to a central server via a cellular network, 2G/3G/4G/LTE, Iridium satellite or can be used as a stand-alone datalogger/RTU.

All Neon data logger/ RTU units routinely collect and log sensor data and periodically connect to a central Neon comms and web server via an IP network using a push data model to upload the logged data. The central Neon server can be cloud-hosted, virtual or physical. The Neon server is offered as a Neon data hosted service using a Unidata Neon server for a monthly fee or customers can purchase a Neon server license and run the Neon software on their own server.

The Neon system receives, processes, displays, stores and reports collected data in many ways. The Neon system also can issue control commands based on pre-set algorithms and issue alarms and notifications via several mediums. Alarm setpoints can be set up on the Neon data logger/ RTU units as well as the Neon central server and alarm notifications can be sent via several methods including email and SMS text messages. Alarm triggers can initiate physical actions in the field such as turning pumps on and off or activating other control functions based on the internal program within the Neon data logger/ RTU.

The Neon system has fully bi-directional communications between the Neon data logger/ RTU units and the central Neon server. This allows for remote diagnosis, remote programming and remote firmware updating for the operation of the remote equipment and thereby reducing costly site visits.

Neon data logger/ RTU units can be configured to read sensors, log data internally to local memory and push data to the central Neon server at user-settable intervals such as once a minute, every few minutes, every hour, once a day. Data to be viewed on the Neon Web server in near real-time from any browser and can be reported to other systems using email, ftp, and web services.

Physical Specifications

Material Powder Coated Aluminium Enclosure
Size 182mm x 110mm x 46mm (LxWxH), 400g
Operating Temperature -20°C to 60°C. Not affected by humidity
Antenna Model dependant, external stub/whip


Integrated Logger 

Storage Memory 7.5Mbytes Flash (non-volatile), 3.75 Million log data points
Memory Expansion SD card, micro size, 32Gbyte maximum capacity, 16 Billion log data points
Scan Rate Programmable from 1 second to 5 minutes
Log Rate Programmable from 1 second to 24 hours
Time Clock Battery Backed Real Time Clock (RTC),
Accuracy +/- 10 seconds/month (non- Neon version),
locked to server time clock (Neon version)
CPU 16 Bit, 20MHz, Ultra-Low Power


Electrical Specifications

External Power 9 to 30V DC (provision for dual power inputs)
Current Draw less than 800μA standby, max 500mA active
RTC Backup Battery 3.6V Li coin cell (5-year life)
Instrument Power 5V regulated, 100mA fused



Analog Channels 3004 4, Single-ended (max) or 2 Differential (max)
Analog Channels 3006 6, Single-ended (max) or 3 Differential (max)
Modbus 1 independent channel, RS485,
RTU or ASCII protocol, 57600 baud (max),
functions 01, 02, 03, 04, 05/15, 06/16
SDI-12 1 independent channel, SDI interface, 16 channels, bi-directional
Counters 3004 4, 2 x 16 bit, DC to 20kHz potential free contacts or 0 to 5V DC digital input (C0,C2);
2 x 16 bit, dc to 300Hz potential free contacts or 0 to 5V DC digital input (C1,C3)
Counters 3006 2, 1 x 16 bit, DC to 20kHz potential free contacts or 0 to 5V DC digital input (C0);
1 x 16 bit, dc to 300Hz potential free contacts or 0 to 5V DC digital input (C1)
Digital Outputs 1, open-drain FET, 30V DC, 250mA max
Relays 1, normally open and normally closed contacts, 1A 30V DC, 0.5A 125V AC
Configuration Port USB-A port, USB-B port
Modem Interface Optional
– internal cellular 2G/3G/4G/LTE Modem, Single SIM card support
– internal satelitte Iridium
Data Interface USB thumb drive port for data download and SD micro card
LCD Display (Optional) 320 x 240, colour, resistive touch panel
Keypad comes with LCD Option Only 5 button membrane keypad
Accelerometer Senses changes in logger orientation
Barometer 260-1260hPa Absolute Digital Output