SDI-12 Sensors are units that include a microprocessor
which retains all calibration information. All that is needed for these sensors to return data in engineering units is to
connect them to our AquaLOG logger via a single 3 core cable. Up to 52 Sensors may be addressed by the AquaLOG unit,connected
via a single cable, provided that the equivalent cable length from logger to Sensor does not exceed 250 metres.
As our vibrating wire and analogue AquaDAT modules are also SDI-12, virtually
all sensors whether SDI-12, analogue and vibrating wire technology, may be all connected within a SDI-12 network.
BAROMETER MODULE SDI-12
The Barometer Module is a fully encapsulated
IP68 unit with SDI-12 output and is typically used to provide meterological atmospheric pressure data when used in conjunction
with a weather station or for atmospheric pressure compensation for vibrating wire piezometers or AquaBAT water level loggers.
click here for Barometer info
HIGH PRECISION TITANIUM DEPTH TRANSDUCER SDI-12
The AquaAQB491 is an
unvented submersible depth transducer constructed entirely in Titanium and Ceramic materials to withstand highly agressive
fluid environments and particulary saline and brackish groundwater conditions. The in built microprocessor ensures an
exceptional accurate device with long term accuracy up to one year of better than 0.05% full scale.
click here for Transducer info
IN PLACE INCLINOMETER SDI-12 BUS
The IPI-01 automates data gathering
from conventional inclinometer tubes and comprises a plus/minus 15 degree high precision MEMS tilt sensor and microprocessor
circuitry fitted within a fully encapsulated stainless steel housing. The sensors operate on an SDI-12 bus which means
that only one 4 mm cable connects all sensors down hole. The sensors receive power from the SDI-12
bus and transmit data in engineering units in a digital string to a data logger. Up to a maximum of 52 sensors can be installed
within one inclinometer tube since there are no attendent problems with individual cables as with other systems.
click here for IPI PDF
TILTMETER AquaTILT SDI-12 Bus and Serial
The AquaTILT is a single
station biaxial MEMS tilmeter suitable for mounting to structure for monitoring long term movement with a plus/minus 15 degree
range.The AquaTILT is fully encapsulated and outputs data in digital format. The AquaTILT can operate on an SDI-12 bus where
it is powered from a data logger and returns digital data to the logger. It also has a serial port allowing it to be connected
to any serial device, such as a PC or modem for onward cable free data transmission. In Serial operation a separate 12 V power
supply is required to operate the device and attendant modem.
click here to download file
