Evaporimetric tank with EPAN level sensor
- Manufacturer: Nesa
- Category: Meteorology – Climatology, SENSORS, Several
The NESA EPAN is an evaporation pan with a level sensor. The evaporation pan and its platform comply with WMO standards for Class A evaporation pans. The pan is made of stainless steel, and the platform is made of white-painted wood or plastic. The sensor is a piezometric water level sensor with an analog output.
Measuring evaporation is of great importance in hydrology and agrometeorology studies and applications, to assess the loss of usable water and, therefore, the decrease in available water reserves.
Range 0–200 mmH2O, accuracy ±0.5% FS, linearity 0.1% FS, stability 0.1% FS, and hysteresis 0.03% FS. Output 4–20 mA, power supply 12 Vdc, standard 5 m cable included. Diameter 1210 mm, Height 254 mm, Weight ~22 kg.
Key points
- WMO Class «A»; tank and platform compliant with WMO standards for Class «A» evaporimeters»
- Piezometric water level sensor, range 0÷200 mm/H2O
- Accuracy ±0.5% FS; linearity 0.1% FS; stability 0.1% FS; hysteresis 0.03% FS
- Analog output 4÷20 mA; 12 Vdc power supply; with MCS module (optional) output A, C
- Evaporation surface 1,143 m²; Ø 1210 mm, H. 254 mm; ~22 Kg
- AISI 304 stainless steel tank; steel well included; white painted wooden or plastic platform; 0 ÷ 50 °C; CE
Technical Frequently Asked Questions
What is EPAN?
An evaporative tank with a piezometric water level sensor with analog output, compliant with WMO standards for class «A» evaporimeters.
What is the sensor's range and accuracy?
Range 0÷200 mm/H2O, accuracy ±0.5% FS, linearity 0.1% FS, stability 0.1% FS and hysteresis 0.03% FS.
What kind of outlet and power supply does it have?
4÷20 mA output and 12 Vdc power supply, with standard 5 m cable included. With MCS module (optional), output A, C.
What is the tank made of?
The tank is made of AISI 304 stainless steel, with a steel well included; the platform is made of wood painted white or plastic.
How do I order it?
Sensor (EPAN), output (B) and cable: CS05 (5 m), CS10 (10 m) or CSxx (xx m, to be specified in the order). Manufacturer's example: EPAN B 10.
Properties
| Feature | Specification |
|---|---|
| Measurement and operating principle | |
| Design | WMO Class «A» |
| Evaporation surface | 1,143 m² |
| Water level sensor | Piezometric |
| Range | 0÷200 mm/H2O |
| Precision | ±0.5 % FS |
| Linearity | 0.1% FS |
| Stability | 0.1% FS |
| Hysteresis | 0.03% FS |
| Regulatory compliance | EC |
| Exit signals | |
| Output signal (EPAN-B) | 4÷20 mA |
| Output type | Analog |
| With MCS module (optional) | Exit: A, C |
| Power supply, environment, and mechanical data | |
| Feeding | 12 Vdc |
| Standard cable | 5 m included |
| Operating temperature | 0 ÷ 50 °C |
| Body | AISI 304 stainless steel |
| Material | Stainless steel |
| Steel well | Including |
| Support platform | Wood painted white or plastic |
| Weight | ~22 Kg |
| Dimensions | Ø 1210 mm, H. 254 mm |
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