Nitrite Analyser


Features and Benefits



            Analyses Directly for Nitrite

            Easy calibration.

            simple to install

            range 0 to 3000



The AQ655 is a cost effective modular system that keeps the level of nitrite based treatment within the desired parameters. The system consists of a control module, which contains all the sensor electronics, dosing control and the data communication hardware and software. The dosing pump complete with suction assembly and low level alarm are also mounted on the frame which also allows space for two chemical treatment containers.


Installation is simple and can easily be carried out by ship?s staff. The dosing units are placed close to the most convenient point in each cooling water circuit to be treated, with only one chemical injection line and one measurement point to be installed


The control unit displays current reading. Optionally, a data communication unit can be supplied for use with any suitable existing PC to provide continuous display of readings whilst pre-formatted management reports give a summary of average readings for any period requested. When possible, AQ652 systems with 2 pumps and dual controller on one frame, can be implemented to save space. Both AQ655 and AQ652 systems can be linked to other Aquanet systems.



Specifications
CONTROL MODULE The module comprises 2 cards.
One card contains a microprocessor, analogue to digital converter,
non-volatile memory local LCD display
and communications interface. The microprocessor card is connected
via a ribbon cable to a second card containing power supplies,
isolation amplifiers and alarm relays,
this function of this card is to power the remotely located probes and amplifiers.

All calibration values system timings and other constants are retained in the non volatile memory
. Dimensions (W) x (H) x (D) mm 760x 1200 x 30

DOSING MODULE The dosing modules are supplied on a steel tubular frame ready for fixing against a bulkhead.



Dimensions (W) x (H) x (D) mm 560 x 1200 x 330 (assembled c/w chemical drum)


Pumps Diaphragm type pulse pump. 1 litre/hr 16 bar max. Plexiglas/SS head

.








Probes
The probe comprises a stainless steel sensor housed in Peek body and screwed into a bronze shaft.
The probe includes a temperature compensation element.
The entire assembly fits into a retractable probe housing allowing servicing
and cleaning of the probe without closing down the line.
These probes are designed to operate from 20?C to 150?C
at 10 bar pressure.

Power requirements 220/240 Vac 50/60 Hz. 3A Max Humidity 0-95% RH non condensing



OPTIONS
Links to other AQUANET units Links to AQUANET software