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Enabling better global research outcomes in soil, plant & environmental monitoring.

ATM.ECO/N - Analog Level Transmitter

Fully submersible pressure transmitters designed for the long term monitoring of depth and level measurements.

• Excellent long term stability allow accurate measurements over a long period
• High measurement accuracy is ensured by sophisticated digital temperature compensation algorithms
• Fast customisation thanks to configurable product design
• Available with over-voltage protection

PRESSURE MEASURING RANGE (MH2O)
1 to 5, (1) > 5 to 20 > 20 to 250
Overpressure 3 bar 3 x FS (>= 3 bar) 3 x FS
Burst pressure, (2) > 200 bar > 200 bar > 200 bar
Accuracy, (3), (± % FS) <= 0.25 <= 0.25 <= 0.25
Total Error, (4) (± % FS)
-5 to 50°C, (typ. / max.) <=1.0/1.5 <=0.7/1.0 <=0.7/1.0
-5 to 80°C, (typ. / max.) <=2.0/2.5 <=1.0/1.5 <=1.0/1.5
Response time, (typ.) < 1ms / 10 to 90% FS < 1ms / 10 to 90% FS < 1ms / 10 to 90% FS
Long term stability, (5) < 0.5% FS / < 4 mbar < 0.2% FS / < 4 mbar < 0.1% FS / < 0.2% FS
TEMPERATURE RANGE
Operating temperature -5 to 80°C
Process temperature -5 to 80°C
Storage temperature -40 to 80°C
ELECTRICAL SPECIFICATIONS
4 to 20 mA 0 to 5 V 0 to 10 V
Power supply 9 to 33 VDC 10 to 30 VDC 12 to 30 VDC
Supply influence < 0.05% FS < 0.05% FS < 0.05% FS
Current Consumption 3 mA 3 mA
Circuit Diagram ATM ECO 4-20mA CD ATM ECO 0-5V CD ATM ECO 0-10V CD
Load Resistance ATM ECO 4-20mA LR ATM ECO 0-5V LR ATM ECO 0-10V LR
Load Influence < 0.05% FS < 0.05% FS < 0.05% FS
QUALIFICATIONS
Standard Level Typical interferences
EN 60068-2-6 Vibration 10 G (4 to 2000 Hz / ± 10 mmpp)
EN 60068-2-27 Shock 100 G (impulse duration 6 ms)
EN 55022 Emission, class B < 30 dBμV/m (0.03 to 1 GHz)
EN 61000-4-2 Electrostatic discharge 8 kV contact / 15 kV air
EN 61000-4-3 Irradiated RF 10V/m (0.08 to 2.7 GHz, 3s) Radio sets, wireless phones
EN 61000-4-4 Transients (burst) 4 kV Motors, valves
EN 61000-4-5 Surge Line-Line: 0.5 kV/42 Ohm, Line-Earth: 1 kV/42 Ohm Over-voltage
EN 61000-4-6 Conducted RF 3 V (0.15 to 80 MHz, 3 s) Frequency converters
PHYSICAL SPECIFICATIONS
Materials
Transducer Stainless steel (316L / 1.4435)
Housing Stainless steel (316L / 1.4404)
Seals Viton (Standard), EPDM, Kalrez, NBR
Cable PUR, FEP, PE, PVC
Weight (6) 145 g

(1) 0.5 mH2O on request
(2) Transducer
(3) Zero based accuracy according to DIN-16086, incl. hysteresis and repeatability at ambient temperature
(4) Total error including accuracy and temperature influences at maximum signal span (16 mA / 10 V DC)
(5) 1 year (typ. / max.), the long term stability can be improved by ageing (burn-in) the sensor
(6) Specification for a ATM.ECO/N, closed, cable

The ATM.ECO/N is part of a comprehensive range of pressure transmitters specifically designed for the long term monitoring of ground water and wastewater. Features such as Kevlar strengthened cable, titanium, ballast weights, data loggers, etc. broaden the installation opportunities. The modular construction provides manufacturing flexibility and offers fast delivery for all pressure ranges and standard options.

Examples of applications include:
– Wells, lakes and reservoirs
– Bore holes
– Surface water, irrigation canals and rivers
– Wastewater and sewage treatment plants
– Tank level measurement