X3-SUB Submersible Data Logger

The X3-SUB is a rugged, self-powered remote data logging and telemetry system specifically designed for offshore use without fear of accidental flooding.

Features

Rugged

The X3-SUB is designed with Type 316 stainless steel, shock-mounted electronics and redundant seals. It can withstand extreme wave action, floods and underwater deployment to 100m.

Close-up of the X3-SUB submersible data logger.

Rugged

The X3-SUB is designed with Type 316 stainless steel, shock-mounted electronics and redundant seals. It can withstand extreme wave action, floods and underwater deployment to 100m.

Wet-Mate Connectors

All connections are made with MCIL/MCBH wet-mate connectors. This removes the complications and errors associated with connecting individual wires.

Wet-Mate Connectors

All connections are made with MCIL/MCBH wet-mate connectors. This removes the complications and errors associated with connecting individual wires.

Multiple Power Options

The X3-SUB is available with an internal sealed lead acid battery for use with the CB-75 Data Buoy's solar panels. Alternatively, a 20 D-cell alkaline battery pack can power the system.

A NexSens CB-75 data buoy with an X3-SUB data logger installed.

Multiple Power Options

The X3-SUB is available with an internal sealed lead acid battery for use with the CB-75 Data Buoy's solar panels. Alternatively, a 20 D-cell alkaline battery pack can power the system.

Device-to-Web

When communicating via wireless telemetry, measurement data streams directly to the WQData LIVE Web Datacenter.

A phone, tablet, laptop, and computer all connected to WQData LIVE which is receiving data from an X3-SUB data logger.

Device-to-Web

When communicating via wireless telemetry, measurement data streams directly to the WQData LIVE Web Datacenter.

Communication Options

Real-time telemetry options include 4G LTE cellular and Iridium satellite. All communication modules are securely housed within the submersible enclosure, and a waterproof antenna is integrated on the top of the device.

Close-up of the NexSens X3-SUB logger ports.

Communication Options

Measurement Versatility

The X3-SUB is configured with three sensor ports to interface with multi-parameter sondes, water quality sensors, temperature strings, Doppler velocity meters, water level sensors, and more. Supported sensor interfaces include SD-12, RS-485 and RS-232.

A variety of environmental sensors that easily pair with the NexSens X3-SUB data logger. Included is the YSI EXO3s, TriOS NICO, Seametrics PT12, NexSens thermistor, and a Gill MaxiMet

Measurement Versatility

Buoy Integration

The CB-75 data buoy is designed to accommodate the NexSens X3-SUB submersible data logging system for unattended deployment in lakes, rivers, and coastal waters.

Close-up of the X3-SUB data logger installed in a CB-75 data buoy.

Buoy Integration

The CB-75 data buoy is designed to accommodate the NexSens X3-SUB submersible data logging system for unattended deployment in lakes, rivers, and coastal waters.

Documents

Data Sheet

Drawing

Bid Specs

Knowledge Base

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Tech Specs

Material: Type 316 stainless steel
Weight: 8.2 lbs. (3.72kg); 12.2 lbs. (5.53kg) with rechargeable battery; 14.1 lbs. (6.40kg) with alkaline battery
Dimensions: 5.5" (13.97cm) diameter with 7.25” (18.42cm) flange x 10.30" (26.16cm) height
Internal Power Options: 6 A-Hr SLA rechargeable battery or 20 D-cell alkaline battery pack
External Power Requirements: 10.7 to 16.8 VDC +/-5%; includes reverse polarity protection, over voltage protection (OVP), and under voltage lock out (UVLO) protection
Current Draw (Typical @ 12VDC): Sleep: 450uA; Active: 55mA; 100mA; Cellular transmitting: 300mA; Iridium satellite transmitting: 170mA
Peak Current: Power supply must be able to sustain a 500mA 1-second peak current (@ 12V)
Operating Temperature: -40°C to 70°C

See Full Specs

Rating: IP68; X3-SUB (no telemetry) depth rated to 328 ft. (100m)
User Interface: Wireless Bluetooth or wired RS-485 via USB adapter to CONNECT Software; WQData LIVE Web Datacenter with optional wireless telemetry; Status beeps
Real Time Clock (RTC): <30sec/month drift1; Auto-sync weekly2; Internal backup battery
Data Logging: 8 MB non-volatile flash memory; >1 year storage with 20 parameters at 15-minute interval; Max 200 parameters per log interval (170 parameters per instrument)
Log Interval: User configurable from 1-minute (10-minute default)3; Unique interval per sensor
Transmit Interval: User configurable from 5-minute (10-minute default)
Transmission Trigger: Time-based; Selective parameter upload option
Sensor Interfaces: RS-232 (3 Channels), SDI-12, RS-485, Pulse Count
Sensor Power: (2) independent switches from input supply4,5
Built-in Sensors: Temperature (-40° to 100°C, 0.016°C resolution, ±0.3°C accuracy); Humidity (0% to 100%, 0.03% resolution, ±4% accuracy from 5 to 95% RH; System voltage; System current; System power; Real-time clock (RTC) battery voltage
Sensor Ports: (3) MCBH-8-MP for sensor interface (RS-232, RS-485, SDI-12, Power, GND)
Power Port: (1) MCBH-6-FS for power and communication (12V Solar In, Power Switch, RS-485 Host, GND)
Telemetry Options: 4G LTE global cellular or Iridium satellite
Antenna Port: Type N female

Notes

¹ Assumes 25ºC operating temperature

² Requires the X3-SUB to be connected to the internet

³ Minimum log interval dependent on sensor limitations and processing time

⁴ Cumulative concurrent current limit of all three channels is 2A

⁵ Logger power supply must be able to support current requirements of sensors

Q&A

What sensors are compatible with the X3-SUB data logger?

The X3-SUB data logger is compatible with sensors that support a native SDI-12, RS-485, or RS-232 output. The X3-SUB also supports tipping bucket rain gauges. Analog sensors (0-5 VDC, 4-20mA, etc.) can be integrated using an analog-to-digital adapter (mV-RS485-MC).

How are sensors connected to the X3-SUB data logger?

The X3 data logger utilizes industry-standard MCIL/MCBH wet-mate connectors. The sensor ports are 8-pin male (MCBH-8-MP), so a 8-pin female (MCIL-8-FS) connector is needed on the sensor cable. If sensor cables aren't already terminated with this connector, customers can send in their sensor cable for a connectorization service (MCIL-8-FS-X). Alternatively MCIL-8-FS-1 pigtail cables are available for customers to wire/splice at their facility.

What power options are available for the X3-SUB data logger?

The most common power scenarios for the X3-SUB data logger are internal SLA battery (BAT-A04) with solar charging from a CB-75 data buoy, internal 20 D-cell alkaline battery pack (BAT-20D), or external 12VDC power from a flying lead cable (MCIL-6-MP-x). For shore-mounted applications, a SA2122 power adapter cable is available to work with any of the X3 data logger power accessories including SP-Series solar power packs, UW6-PW AC power adapters, and UW6-BB battery backups.

Can the X3-SUB data logger be integrated on a data buoy?

The X3-SUB is IP68 waterproof rated and designed to be integrated on the CB-75/CB-75A data buoys. The data logger could also be integrated on 3rd party data buoy platforms using the internal alkaline battery pack or external 12VDC power.