Inputs/outputs

#

Range

DL6 Accuracy

logger -10 to +50°C

Notes

Analogue channels (soil moisture)

6

0.0 - 0.1 m³.m^-3

±0.001 m³.m^-3

Applicable to : ML3, SM300 and PR2 (with up to 100m cable) PR1 (up to 25m cable)

Mineral & organic soil calibrations

6

0.1 - 0.6 m³.m^-3

±1% of reading

Analogue channels (DC voltage)

6

-10 to 1150 mV

Common mode range

-0.2 to 3V

±(0.3mV + 0.2% of

reading)

+ common mode error: 0.25mV/V

Logger can read either volumetric water content or voltage (not both)

Temperature channels

1

sensor -20 to

+60°C

±0.4°C

Using ST1 or ST2 or other 2K thermistor

Event counter channel

1

<50Hz>

Max 1mm/second if using RG2 rain gauge (0.2mm/tip)

Sensor excitation

6

5 - 9V at 120mA

Uses internal battery voltage supply

Alarm out

1

1A, 25V DC/AC

Isolated relay switching 2A max¹

Feature

Full scale

Notes

Logging frequency

1s to 24hr

User selectable with accelerated logging option

Accelerated logging

1s to 24hr

User selected - rain gauge or event triggered

Reading capacity

16k readings

Auto-wrap or stop logging - user selectable

PC connection

1

Via RS232 connection (USB to RS232 converters are available)

Battery lifetime

1yr

6 alkaline AA cells last for up to one year (depends on logging frequency)

Environmental

IP67

-20 to +60°C Operating

-10 to +50°C Full accuracy