Water Level Sensors

TD-Diver

The TD-Diver is a submersible water level logger designed for long term uninterrupted, real time water level monitoring.

Manufactured from 316L Stainless Steel and measuring just 22mm in diameter, the TD-Diver incorporates an internal pressure sensor that measures hydrostatic pressure above the sensor diaphragm to calculate total water depth.

The TD-Diver is ideal for various applications including:

• Long term water level monitoring
• Groundwater monitoring
• Surface water monitoring
• Network automation monitoring
• Watershed, drainage basin and recharge areas
• Stream gauging, lake levels and reservoirs
• Wetlands and storm water run off monitoring

TD-Diver Ranges

The TD-Diver is available in the following ranges:

• 10m
• 20m
• 50m
• 100m

Datlogging Capacity

The TD-Diver can store an impressive 72,000 data-points including:

• Date
• Time
• Depth
• Pressure
• Temperature

The TD-Diver incorporates the following sample methods:

• Fixed length intervals
• Event dependent
• Averaging
• Pumping test

Cable options

Various Diver communication cable lengths are available:

• 1m MDC data cable
• 2m MDC data cable
• 3m MDC data cable
• 4m MDC data cable
• 5m MDC data cable
• 7m MDC data cable
• 10m MDC data cable
• 15m MDC data cable
• 20m MDC data cable
• 30m MDC data cable
• 40m MDC data cable
• 50m MDC data cable
• 60m MDC data cable
• 80m MDC data cable
• 100m MDC data cable
• 150m MDC data cable
• 200m MDC data cable
• 250m MDC data cable
• 300m MDC data cable

Divers can also be deployed using Stainless Steel suspension cables.

Baro-Diver Atmospheric Pressure Compensation

To compensate Diver data for atmospheric pressure, the Diver range is complimented by an optional Baro-Diver.

The Baro-Diver records atmospheric pressure & temperature data, at predetermined intervals, which can be combined with Diver data.

Data Download Options

Logged data can be downloaded easily using the Diver-USB Reader Unit.

Simply insert the Diver into a USB Reading Unit and connect using the free Diver Office software.  Once connected the Diver can be programmed, settings can be changed and or data can be read/downloaded.

The Diver-USB Reader Unit connects to a USB port of a PC, Laptop and/or Tablet.

Note: Diver Software (2022) must be installed to be able to communicate with the Diver.

Telemetry Options

When deployed as a long-term long term uninterrupted, real time water level logger, the TD-Diver can be coupled with an Eijkelkamp GDT-S Prime (4G modem) enabling remote data transmission (email) over the 4G Network.

Using a user supplied SIM Card, the Eijkelkamp GDT-S Prime transmits water level data (via email) anywhere in the world where there is 4G internet coverage.

Transmitted parameters include:

• Date
• Time
• Depth
• Pressure
• Temperature
• Atmospheric Pressure

The GDT-S Prime is designed to be placed within a 50mm monitoring well and incorporates an external antenna, allowing data to be communicated on a daily basis, without operators having to go into the field!

Diver Software

Setup monitoring projects and identify fieldwork tasks such as a site visit sequence, collection of Diver data and deployment of Divers using Diver Software (2022).

Diver Software (2022) consists of two applications:

• Diver Office
• Diver Field

Use Diver Field to carry out fieldwork and download Diver data.

Use Diver Office to merge time series, barometrically compensate Diver data & convert into water levels, visualize data including manual measurements and export data into MON, CSV or XLSX files for use in third-party applications.

This product is manufactured by Van Essen and proudly represented by Aqualab Scientific.