Frequently asked questions
Browse the topics below to find answers to the questions we’re asked most often.
- Nitrate: 0.6 - 500 mg/L as NO3- (0.14 to 113 mg/L as N)
- Nitrite: 0.05 - 100 mg/L NO2- (0.01 to 23 mg/L as N)
*We can supply custom ranges within these broad limits by adjusting the sample loop to suit your analytical needs
The system can operate over a temperature range of 10°C to 40°C.
The defined operating orientation is vertically upright, as per the image below:
The system can analyser a sample every 15 minutes, which is equivalent to a maximum of 96 samples per day.
The sampler can be programmed to vary the sample frequencies. This needs to be done by a service engineer.
Yes. A general visual inspection of the unit should be carried out to ensure the inlet filter line and tube are free from blockages. The inlet tube and filter could be rinsed on a regular basis to extend their lifetime.
Yes, but we need to capture this information in the customer questionnaire prior to provision of the analyser. The unit is not suitable for deployment in aeration tanks or biological reactors.
No saline waters are problematic for the analyser. We are currently developing a saline-compatible version.
The sample intake system has been designed to be robust in wastewater, and its performance in septic tanks without clogging or blocking has been demonstrated in trials by the US EPA.
We are currently trialling performance in aeration basins. Here, some low-cost pre-filtration may be required.
Up to 3 meters.
The sample intake line should be positioned in a manner so the intake is suspended in the middle of the water sample. Regular cleaning of the inlet tubing and filter will prolong the life of the sample tubing and keep it free from blockages.
The unit will be calibrated in the factory prior to despatch to site. The service engineer will confirm this calibration on site during installation.
The analyser holds its calibration for the deployment period. In trials, calibration has remained stable over deployments of six months.
Standards for re-calibration are available from https://aquamonitrix.com/consumables
We recommend four services per year.
Personnel who have received suitable training by Aquamonitrix ltd. This could be internal team, one of our service partners or an agnostics service provider. Service is straightforward and we provide training by video.
Communication via SCADA
Yes. It can also be connected to Datamonitrix, as below.
Communication via Datamonitrix
Yes - you can add/remove team members and assign access levels.
Yes, system can be connected to a SCADA system in parallel.
Yes – Datamonitrix can be used to set defaults and configure alarms.
Yes, but the analyser would need to be manually adjusted via the IoT interface.
Yes. The digital output from the analyser is suitable as an input to the customer's choice of environmental data management system.
The battery is a backup feature. Its purpose is to allow the unit to ride through any short duration brown/black outs in the customer’s power supply. If the unit is in the process of a run when the power loss occurs, the sample will complete. From a fully charged state, the battery should hold for several days.
The unit is IP65 rated, so leaving it out in the rain shouldn’t have any negative impact. The only caveat would be that care should be taken with opening the unit to prevent exposing it to the elements.
15 - 25 V dc input power, 50W max. rated power
The current commercial model requires a mains power source. However, we are at the advanced stages of commercialising a solar powered unit, being developed for portable and remote monitoring.
The duration before a reagent-re-filled is required depends on the sampling frequency. The analyser holds a maximum of 2 litres of eluent, and each sample consumes 3.3 ml. With a frequency of 6 samples per day, the reagent will last for 100 days – or over 3 months.
|Sampling Frequency||Number of Samples Per Day||Duration of Deployment|
|Every 4 hours||6||100 days|
|Every 2 hours||12||50 days|
|Every 15 minutes||96||6 days|
Yes. The eluent is a potassium hydroxide solution (KOH @ 120mM concentration). The Safety Data Sheet for the reagent contains the following hazard statements: “May be corrosive to metals. Causes severe skin burns and eye damage.”