METER GROUP HYDROS 21 WATER LEVEL, CONDUCTIVITY, TEMPERATURE

Previously known as Decagon Water Level, Conductivity, Temperature

The METER Group HYDROS 21 sensor is a low cost, accurate tool for monitoring of water level, electrical conductivity, and temperature in both ground water and surface water. The sensor utilizes a vented pressure transducer to obtain accurate water level measurements from 0 to 10 m while removing the effects of barometric pressure. With a range of 0 to 120 dS/m, the CTD sensor has the ability to make accurate electrical conductivity measurements in a broad range of applications.

SENSOR	METER GROUP HYDROS 21 WATER LEVEL, CONDUCTIVITY, TEMPERATURE
Part No.	CTD10

TECHNICAL SPECIFICATIONS

Range	Water depth: 0 to 10,000 mm Electrical conductivity: 0 to 120 dS/m Temperature: -11 to 49 °C, do not expose to temperatures <32 °F if sensor is in water
Resolution	Water depth: 2 mm Electrical conductivity: 0.001 dS/m Temperature: 0.1 °C
Accuracy	Water depth: +/- 0.05% of full scale @ 20 °C Electrical conductivity: ±0.01 dS/m or ±10% (whichever is greater) Temperature: ±1 °C
Operation temperature	0 to 50 °C (Pressure transducer cannot be allowed to freeze while submersed)
Power requirements	3.6 – 15 VDC, 0.03 mA quiescent, 0.5 mA during 300 ms measurement
Dimensions	10 m standard; custom lengths available upon request
Support	Pessl Instruments BUS only at the end of the chain

PESSL INSTRUMENTS GmbH
Werksweg 107, A-8160 Weiz, Austria
Tel: +43 (0) 3172 5521, Fax: +43 (0) 3172 5521 23
E-mail: [email protected], Webpage: www.metos.at