NexSens Terminology

The following NexSens terminology is commonly found in NexSens quick start guides, system integration guides, or in communication with NexSens technical support.


Each data logger contains an engraved tag (e.g., xx1797) on the exterior of its housing for immediate identification. By default, this tag will push to WQData LIVE as the ending of the overall “logger name” (e.g., X2-SDL-C-NA4G-31797).

Claim Code

A unique claim code is included with each data logger to determine ownership of the logger on WQData LIVE. After a user has created a WQData LIVE project and site, they can use the claim code to add the device, and all collected data, to their site.

Communication Protocol

Sensor interfaces on NexSens data loggers include SDI-12, RS-485, and RS-232. Many environmental sensors can use multiple interfaces; thus, it is imperative to know the protocol utilized by the sensor for communication during sensor detection.

Detected Port

Each data logger system has (3) unique sensor ports (i.e., P0, P1, or P2). The Detected Port outlines the sensor port that the sensor must always be connected to before deployment for proper communication.

Log & Sample Interval

The log and sample interval determines the frequency at which sensor data is collected and logged. Averages of sensor measurements can be gathered by setting the log interval as a multiple of the sample interval.

Script Number

Each data logger is pre-loaded with scripts to communicate and read data from common environmental sensors. Scripts for each sensor in the guide will be enabled and used for detection and test measurements before each shipment.

Selective Upload Interval

The selective upload interval determines the frequency in which specific parameter data is uploaded or transmitted to WQData LIVE, regardless of the log interval. Parameter data will log internally; however, only the data point at the SU interval will transmit.

Subscriber Identity Module (SIM ID) & International Mobile Equipment Identity (IMEI)

The SIM ID and IMEI are unique identifiers for the SIM card and modem installed within the data logger for cellular telemetry. The cellular service will be tested in nearly all applications before shipment. If the cellular service is inactive, the user must send the SIM ID and IMEI to their cellular service provider for activation.

Transmit Interval

The transmit interval determines the frequency at which all data collected by the logger is sent to WQData LIVE. The transmit interval can be adjusted via the CONNECT software or WQData LIVE. Only one transmit interval can be set for the entire system.

Universally Unique Identifier (UUID)

The UUID is a 41-character code uploaded to the WQData LIVE web datacenter by a NexSens technician before shipment. The UUID provides a location on the data center where settings and data are transferred between the web and a specific data logger.