Technical Specifications

Measurement Specifications

Measurement Depths

5 cm, 10 cm, 20 cm, 30 cm, 50 cm, 100 cm

Temperature

Range: -20.00 – 50.00 °C

Resolution: ±0.03 °C

Accuracy: ± 0.1 °C (0 °C to 30 °C), ± 0.2 °C (-20 °C to 50 °C)

Communication Specifications

Output

SDI-12 One-wire Serial Interface: DDI communications protocol, SDI-12 communications protocol

RS-485 two-wire-serial-interface (M12 connector only): tensioLINK serial communications protocol, Modbus RTU communications protocol

Data Logger Compatibility

METER ZL6 data loggers and any data acquisition system capable of 3.8- to 28.0‑VDC power and serial interface with SDI-12 and/or RS-485 interface, Modbus RTU or tensioLINK communication

Physical Specifications

Dimensions

Diameter: 2.0 cm (0.79 in)

Length: 104.0 cm (40.94 in)

Materials

Shaft: PA66GF30

Sensor Elements: Stainless steel

Operating Temperature Range

Minimum: -30.00 °C

Maximum: 60.00 °C

Cable Length

4.5 m (standard)
75 m (maximum cable length using M12 connector and elongation cables)

Connector Types

3.5-mm stereo plug connector
4-pin M12 plug 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

Maximum: 28.0 VDC continuous

Digital Input Voltage (Logic High)

Minimum: 1.9 V

Typical: 3.6 V

Maximum: 5.0 V

Digital Input Voltage (Logic Low)

Minimum: -0.3 V

Typical: 0.0 V

Maximum: 1.0 V

Digital Output Voltage (Logic High)

Typical: 3.6 V continuous

Power Line Slew Rate

Minimum: 1.0 V/ms

Current Drain (During Measurement)

Minimum: 2.0 mA

Typical: 2.5 mA

Maximum: 4.0 mA

Current Drain (While Asleep)

Typical: 80 µA

Power Up Time (DDI Serial Ready)

Minimum: 210 ms

Maximum: 400 ms

Power Up Time (SDI-12 Ready, DDI Disabled)

Minimum: 210 ms

Maximum: 400 ms

Power-Up Time (RS-485 Ready, DDI Disabled)

Minimum: 210 ms

Maximum: 400 ms

Measurement Duration

Minimum: 30 ms

Maximum: 240 ms

Other

Compliance

EM ISO/IEC 17050:2010 (CE Mark)