METER TEROS 11, Руководство пользователя, Страница: 17 / 30

13
TEROS 11/12
Operating Temperature Range
Minimum –40 °C
Typical NA
Maximum +60 °C
NOTE: Sensors may be used at higher temperatures under certain conditions; contact Customer Support
for assistance.
Power-Up Time (DDI serial)
Minimum 80 ms
Typical NA
Maximum 100 ms
Power-Up Time (SDI-12)
Minimum NA
Typical 245 ms
Maximum NA
Measurement Duration
Minimum 25 ms
Typical NA
Maximum 50 ms
COMPLIANCE
Manufactured under ISO 9001:2015
EM ISO/IEC 17050:2010 (CE Mark)
2014/30/EU and 2011/65/EU
EN61326-1:2013 and EN55022/CISPR 22
3.2 COMPONENTS
The TEROS 11/12 sensor measures soil moisture, temperature, and EC (TEROS 12 only) of
soil using stainless steel needles (
Figure 4 ). TEROS 11/12 sensors measure soil moisture
between Needle 1 and Needle 2. TEROS 12 measures EC between Needle 2 and Needle 3.
Temperature is measured with an embedded thermistor. These sensors have a low power
requirement, which makes them ideal for permanent burial in the soil and continuous
reading with a data logger or periodic reading with a handheld reader.