HT-Hydrotechnik Data Logger LTC 575 V575-LTC
The Datalogger Type 575-LTC is a compact instrument for measuring and recording water level, temperature and electrical conductivity.
The conductivity can also be used to derive the salinity (optional).
In addtion to the well-proven reference pressure cell, a high-precision and insensitive conductivity sensor is used which delivers precise measured values, and guarantees long-term stability.
A recalibration of the conductivity sensor is usually needed only after many years of use - If required at all.
Also provided with a large non-volatile memory for min. 253,000 records. This makes the device ideal for pumping tests or tracer measurements. The integrated battery has a lifetime of at least 10 years of operation with 3 million measurements before replacing it at the factory. This is the only datalogger on the market with this feature.
Main Features:
- Maintenance free - no desiccant / dry cartridges required
- Compact design with Ø 22mm for installation in pipes from 1-inch
- High-precise and long-term stable 4-pole conductivity sensor
- Conductivity sensor stable over years, no re-calibration necessary
- Check measurements by a Water Level Meter are possible without conversion or removal from 2-inch wells
- Power supply for 10 years operation and 3,000,000 measurements
- Made of high class stainless steel, for high corrosion protection
Applications
- Measurement and monitoring of saltwater intrusion
- Measure and record water level, temperature and conductivity during pumping tests
- Well monitoring
- Level and quality measurement of surface waters
- Tracer measurements
- For remediation of contaminated sites
- Monitoring of landfills
Technical Specifications
Water Level Measuring Range: Selectable up to max. 300m water column
Resolution: Standard: 1 cm / Option: 1 mm
Accuracy: < 0.05% of selected measuring range
Temperature Measuring Range: -5°C to +50 °C / Option: -5°C to +70°C
Accuracy: < 0.1°C
Conductivity Measuring Range: 0 ... 200,000 µS/cm
Accuracy: < 0.5 % of current value, min. 2 µS/cm;
Salinity / TDS: in ppm / calculation from conductivity values
Device Data Memory: Flash memory 4MB, non-volatile, for min. 253,000 records
Measuring interval: Adjustable: 1 minute to 99 days / Optional: from 1 second, up to 10 intervals preselectable
Length of Cable: Individually selectable up to max. 500 m
User Interface: RS 232; can be addressed via serial and USB interface
Dimensions Probe: Ø22mm x 315mm
Dimensions Converter Unit: Ø24mm x 140mm
Operating Temperature: -30°C to +70°C / probe in ice-free area
File Format: User selectable; ASCII; Excel; ZRXP; MIS; Labdüs and many more.