DT2040: 20/40 Channel Vibrating Wire Thermistor Data Logger

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The DT2040 is a purpose-built logger ideal for remote locations or for instruments that will require frequent reliable data recording.

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Overview

The DT2040: 20/40 Channel Vibrating Wire/Thermistor Data Logger is a low cost, battery powered data logger, designed for reliable, unattended monitoring of up to 40 sensors which may be any mix of vibrating wire sensors and thermistors, typically 20 vibrating wire sensors with their associated thermistors and/or thermistor strings.

The DT2040 is a purpose built logger ideal for remote locations or for instruments that will require frequent reliable data recording. The DT2040 connects to all vibrating wire sensors including piezometers, crack meters, and strain gauges; however, it will not connect to vibrating wire sensors with auto resonant circuitry. Surge protection is available on each channel with ground lug on exterior of enclosure (ground rod required).

Vibrating wire sensors have unique advantages in geotechnical applications, as the frequency output of the gauge is immune to external electrical noise, able to tolerate wet wiring without signal degradation, and able to transmit the signal up to 1.6 kilometers without loss.

Data logger setup and data collection is done using a laptop. RST’s DT Logger Host Software is also included.

The DT2040 can also be equipped with an optional radio antenna (see photo) to incorporate it into an RSTAR or DT LINK wireless system.


DT2040: 20/40 Channel Vibrating Wire Thermistor Data Logger Specifications

ITEM SPECIFICATION
Frequency Accuracy 0.002% Full Scale
Resolution 1 part in 65,000
Memory Records – 2 CHANNELS: Up to 303,000 records
– 40 CHANNELS: Up to 32,768 records
Including: time, 20 channels frequency, frequency, 20 channels temperature
Power Source Lithium compact or standard cell battery
(NOTE: standard cell required for radio use)
Battery Life Over 4 years (non-radio) standard cell
1.5 years (non-radio) compact cell
3 years (RSTAR, standard cell)
2 years (DT LINK, standard cell)
(NOTE: above specs based on 1-hour reading frequency and dependent on temperature and use)
Communication USB Type B connector (radio optional)
Dimensions Without mounting tabs: 349 x 301 x 162 mm (13.74 W x 11.85 D x 6.38 H in.)
With mounting tabs: 349 x 301 x 175 mm (13.74 W x 11.85 D x 6.89 H in.)
Temperature Range -40°C to 60°C (-40° to 140°F)
Enclosure NEMA 4X (IP65)

 

MEMORY SPECIFICATIONS

ITEM SPECIFICATION
Memory Size 4MB
Data Transfer 5,000 data points per second
Interval Mode 40 seconds to 1 day
Variable Rate Mode 16 user-programmable sampling rates
Time Format Month / day / year
Hour / minute / second
Memory Full Behaviour “Wrap around” or “fill & stop” option

The DT2040: 20/40 Channel Vibrating Wire Thermistor Data Logger where is commonly used where reliable, unattended monitoring of up to 20 vibrating wire sensors or 40 thermistors points is required.

View illustrations on how the DT2040: 20/40 Channel Vibrating Wire Thermistor Data Logger is used for:

DT2040: 20/40 Channel Vibrating Wire/Thermistor Data Logger ordering info

ITEM PART #
DT2040 Data Logger DT2040
Cable Gland Nut Wrench DT100
Grounding Rod Kit ELGK4600

 

Options

RSTAR L900 – automated wireless data collection
DT2040 DTLINK – wireless data collection

File Name

DT Series Dataloggers Installation Guidelines

Resource Type

Manual
Language Version Download
English ELM0089B

File Name

DT Series Dataloggers Maintenance and Service Guidelines

Resource Type

Manual
Language Version Download
English ELM0088B

File Name

DT2040 20/40 Channel Vibrating Wire Thermistor Data Logger

Resource Type

Brochure
Language Version Download
English ELB0044N
Spanish ELB0056D
Portugese ELB0090A

File Name

DT Logger Host Instruction Manual PC Platform

Resource Type

Manual
Language Version Download
English ELM0080L

File Name

DT Logger Host Instruction Manual – Mobile Platform

Resource Type

Manual
Language Version Download
English ELM0081D

Speak with an Expert

I’m very happy with the quality of the instrumentation and technical support from RST, as always. They worked with us from the initial stages of the project to ensure that we were fully prepared and equipped to use the RSTAR network for the first time. They delivered everything within the tight project time frame to ensure that there were no delays on site, and the submersible tilt meters looked like new even after over twelve months of being submerged in Thames water!
 
-Richard Lipscombe, BEng (Hons), Director & Principle Consultant - RL Geotechnical Ltd