Please see our User Guides for full technical support

Operational
Does the sensor just measure pH or is it multi-parameter?
The OC and AQ sensors measure pH without the need to calibrate. The sensors also carry a temperature measurement accurate to +/- 0.1 C.
Does the sensor suffer from biofouling?
During the measurement, a tiny (femto molar) amount of biocide is produced locally to the transducer. Extensive testing has shown that this is enough to keep the transducer clean, another factor that sets these sensors apart from other water quality sensors.
What salinity range does the sensor work over?
The OC and AQ sensors work throughout the entire salinity range – from 0 ppt to 40 ppt without the need to recalibrate.
What is the measurement frequency?
The sensor’s fastest measurement rate is 23 secs, with the ability for the end user to slow this down to every 4 hours depending on the required measurement profile.
If the interval is set to 0, how frequently will a sample be taken?
It will take around 90 secs for the first measurement and then there will be a measurement every 23 secs there after. 
How long does it take to power up and provide accurate measurements?
The first measurement will arrive after 5 minutes of immersion, this allows the sensor to conduct its internal reference check– the technology that allows the sensor to run calibration-free. 
What is the maintenance frequency?
The OC and AQ sensors have been designed so they are very low maintenance – no calibration! The only maintenance that is required is an abrasion of the surface of the transducer after around 15,000 measurements. Obviously, the frequency of this maintenance is very dependent on the measurement profile. Maintenance is quick and easy, have a look here for a short video on how to abrade the transducer.
Are there any special storage conditions?
The sensor can be stored wet or dry, setting itself apart from today’s glass electrode technology.
Technical
How is the sensor powered?
The OC and AQ sensors require external power taking anything from 5 to 42V.
How do we communicate with the sensor? 
Communication is through RS232 or RS485 and the sensor can be operated by either Modbus protocols or a terminal program.
What is the power consumption of the sensor?
In operation, the sensor consumes 80 mA. In sleep mode, the sensor draws less than 5uA, or can be powered off completely when not monitoring.
What are the supported baud rates?
When your sensor arrives, it will be set at 115200, however, the user can easily change the baud rate from 115200 to any one of: 57600, 56000, 38400, 28800, 19200, 14400 and 9600
What are the details on the sensor pinout/connector?
The pin-out information can be found in the user guides for each sensor: AQ5 | AQ50 | OC300 | OC1250
Integration
Can the sensor be integrated?
The OC and AQ integration kit allows for easy integration into any bespoke system. Drawings and step files of the integration kit can be found here.
Can we license the technology?
ANB are open to licensing their electronics designs and firmware for integrators to incorporate the control electronics into their systems. Please contact us for more information.