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5

TEROS 06

TEROS 06 sensors require an excitation voltage in the range of 3.9 to 28.0 VDC and operate 
at a 3.3-VDC level for data communication. TEROS 06 can be integrated using DDI serial, 
SDI-12 protocol, Modbus RTU protocol, or tensioLINK protocol. See the 

TEROS 06 Integrator 

Guide

 for details on interfacing with data acquisition systems.

TEROS 06 sensors come with either a 3.5-mm stereo plug connector (

Figure 2

to facilitate easy connection with METER loggers or with a 4-pin M12 connector 
(

Figure 3

) to facilitate connecting to some third-party loggers (

Section 2.3.2

).

The TEROS 06 comes standard with a 4.5-m cable. In some instances, the cable can be 
extended beyond 75 m by the user, but this is discouraged for a variety of reasons. Please 
contact 

Customer Support

 for more details before extending or splicing cables.

Ground
Digital communication
Power

Figure 2  3.5-mm stereo plug connector wiring used with METER loggers

1

1

2

2

3

3

4

4

Male plug on
sensor cable

Female plug on

connecting cable

Figure 3  4-pin M12 plug connector used with non-METER loggers

2.3.1  CONNECT TO METER DATA LOGGER

The TEROS 06 works most efficiently with METER ZENTRA series data loggers. Check the 
METER download webpage (

metergroup.com/downloads

) for the most recent data logger 

firmware. Logger configuration may be done using either ZENTRA Utility (desktop and mobile 
application) or ZENTRA Cloud (web-based application for cell-enabled data loggers).

METER recommends using a standard stereo plug connector with a METER ZENTRA series 
data logger using SDI-12 communications protocol.
1.  Plug the 3.5-mm stereo plug connector into one of the sensor ports on the logger.
2.  Use the appropriate software application to configure the chosen logger port for the 

TEROS 06. METER data loggers will automatically recognize TEROS 06 sensors.

3.  Set the measurement interval.

METER data loggers measure the TEROS 06 every minute and return the average of the 
1-min data across the chosen measurement interval.

Summary of Contents for TEROS 06

Page 1: ...1 Connect to METER Data Logger 5 2 3 2 Connect to a Non METER Data Logger 6 2 4 Communication 8 2 5 Removing the Sensor 9 3 System 10 3 1 Specifications 10 3 2 Components 13 4 Service 14 4 1 Calibrat...

Page 2: ......

Page 3: ...ture at specified depths following World Meteorological Organization WMO recommendations TEROS 06 is designed for measurements in the field in lysimeters and in water bodies The small diameter of 20 m...

Page 4: ...in Table 1 to set up the TEROS 06 and start collecting data Table 1 Installation Tools Needed TEROS 06 auger Dead blow hammer PVC casing or flexible conduit to protect cables Cable inserting tool if...

Page 5: ...driving over sensor cables tripping over cables not leaving enough cable slack during installation or poor sensor wiring connections Install cables in conduit or plastic cladding when near the ground...

Page 6: ...th a dead blow hammer until the auger head is 30 cm in the ground Continue to check the level for a proper upright angle until the auger is in far enough that the angle does not change 5 Rotate the au...

Page 7: ...nector wiring used with METER loggers 1 1 2 2 3 3 4 4 Male plug on sensor cable Female plug on connecting cable Figure 3 4 pin M12 plug connector used with non METER loggers 2 3 1 CONNECT TO METER DAT...

Page 8: ...s 3 Wire it directly into the data logger This option has the advantage of creating a direct connection with no chance of the sensor becoming unplugged However it then cannot be easily used in the fut...

Page 9: ...has the M12 plug connecting cables connect the TEROS 06 wires to the data logger as illustrated in Figure 6 and either Figure 7 or Figure 8 depending on the desired protocol Connect the screen thick...

Page 10: ...a bus use the METER ZSC and the METER ZENTRA Utility Mobile app to change the sensor SDI 12 address See the individual sensor integrator guide for more information about the SDI 12 protocol in the se...

Page 11: ...ING THE SENSOR To remove the sensor from the soil pull gently on the sensor shaft until the sensor is out of the soil WARNING Do not pull by the cable Doing so may break internal connections and make...

Page 12: ...terface DDI serial communications protocol SDI 12 communications protocol RS 485 two wire serial interface M12 connector only tensioLINK serial communications protocol Modbus RTU communications protoc...

Page 13: ...connector NOTE If a stripped and tinned wire is needed please contact Customer Support ELECTRICAL AND TIMING CHARACTERISTICS Supply Voltage VCC to GND Minimum 3 9 VDC continuous Typical Maximum 28 0 V...

Page 14: ...t Drain While Asleep Minimum NA Typical 80 0 mA Maximum NA Power Up Time DDI Serial Ready Minimum 210 ms Typical NA Maximum 400 ms Power Up Time SDI 12 Ready DDI Disabled Minimum 210 ms Typical NA Max...

Page 15: ...cm high stainless steel ring and the digital sensor is mounted at the inner surface of the stainless steel ring The stainless steel rings have thermal contact to the soil and they transmit the soil te...

Page 16: ...ntact Customer Support Table 2 Troubleshooting the TEROS 06 Problem Possible Solutions Data logger is not recognizing sensor If using a METER logger update logger firmware Check the logger configurati...

Page 17: ...day 8 00 to 17 00 Central European time Email support europe metergroup com sales europe metergroup com Phone 49 89 12 66 52 0 Fax 49 89 12 66 52 20 Website metergroup de If contacting METER by email...

Page 18: ...ta acquisition system See installation connecting the TEROS 06 E email address 15 F fax number 15 I installation 2 connecting the TEROS 06 4 6 mounting 3 tools required 2 M measurements 10 12 measurem...

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