bbe biological •biophysical •engineering moldaenke T o x P r o t e c t 6 4 Quick and reliable drinking water protection the water watchdog w w w . b b e - m o l d a e n k e . d e T o x P r o t e c t 6 4 b b e m o l d a e n k e © A q u a r i u m o f t h e T o x P r o t e c t 6 4 Automated online surveillance The Tox Protect64 is an automated monitoring system for the protection of a drinking water supply against accidental or malicious contamination due to harmful substances. The characteristics of such threats are a relatively high concentration of dangerous substances that occurs suddenly. This challenging task requires a number of important criteria to be met. Such a system MUST be sensitive to a wide range of toxins. The detection of toxins using fish is a well-established method, with sensitivity data for nearly every combination of fish and toxin readily available. The test organisms must react to substances harmful to humans. The use of fish gives the closest practical comparison available in the expected scenario. False alarms MUST be reduced to an absolute minimum in order to increase user-confidence and avoid unnecessary expense. The Tox Protect64 uses an integrated alarm verification system to fulfil this requirement. It is easy to operate at affordable costs since for a high level of security, it may be necessary to employ multiple monitoring locations. The Tox Protect64 is a low-price, low-maintenance device which can be installed at various sites within a water company. Operation Control panel The Tox Protect64 user interface allows On the left, a parameter settings menu easy control of the instrument. All read-to select the relevant submenu, in the ings are shown as numbers or as charts. center a summary of parameter readings The parameters of the Tox Protect64 and on the right an LED test displaying measuring process can either be entered the number of interruptions for each via the control panel or via the web light barrier during the last 60s. interface. C o n t r o l P a n e l o f t h e T o x P r o t e c t 6 4 T o x P r o t e c t 6 4 b b e m o l d a e n k e © Detection Method The Tox Protect64 monitors the swimming Alarm Indication activity of up to 20 fish by measuring the frequency of interruptions of an array of The alarm indicator (traffic light) shows the current light barriers. The result is given in inter-operating mode: rupts per minute and fish. In the event of Red: alarm values falling below a given threshold for Yellow: alarm verification a certain time, the alarm verification Green: normal operation process is initiated. No light: stand-by Additionally, immobile fish at the bottom Flashing green: start-up and in the upper region of the aquarium are registered. Flashing yellow: failure The fish species employed is user-selectable, with recommendations given in the Instrument Malfunction Surveillance specifications. Best results are obtained using agile fish of 4-6 cm in length. The Tox Protect64 is equipped with internal sensors to monitor and report on instrument malfunction including: D inadequate sample flow Alarm Verification D drain blockage Due to natural random variations of fish D temperature excursion behaviour, any alarm criterion may be D accidental/unauthorised exposure of test chamber to ambient light reached from time to time just by accident. D high chlorine concentration Hence, to prevent false alarms, a veri-D loss of dechlorination reagent fication system is required. This is achieved by increasing the illumination inside the aquarium during verification. Optional Dechlorination System Normally, this leads to a dramatic increase in the activity of the fish. Under toxic For chlorinated drinking water the Tox Protect64 can be equipped with a conditions, this may not occur. The in-dechlorination unit with integrated level control, a peristaltic pump and strument thus accepts or rejects the a total chlorophyll electrode. alarm automatically. V e r i f i e d A l a r m o f t h e T o x P r o t e c t 6 4 D i s c a r d e d A l a r m o f t h e T o x P r o t e c t 6 4 T o x P r o t e c t 6 4 b b e m o l d a e n k e © Applications D municipal drinking water uptakes and distribution D hotels and leisure centres D hospitals, medical facilities D apartment blocks, palaces and public buildings D wells Specifications T o x P r o t e c t 6 4 ( b a s i c i n s t r u m e n t w i t h o u t o p t i o n s ) Features Weight of the instrument 50 kg D array of 64 light barriers to detect fish movements Size (H x W x D) 800 x 790 x 444 mm3 D 30 light barriers to detect Power supply 110/230V @ 50/60 Hz immobile fish Power consumption 200 W D alarm verification system Sample temperature 5 - 28 °C D flow control Sample flow 50 -150 l/h D temperature control Turbidity < 40 FTU D overflow detector D access via LAN, Internet or GSM Aquarium volume 9 l D PC data-evaluation software Housing protection class IP54 D dechlorination option Relay outputs 4 x 24V 1 A contacts Interface LAN Maintenance interval 7 days; 1 h Recommended fish species zebrafish, tiger barb, minnow, goldfish, bitterling – depending on the temperature; tests for other local fish on request Benefits Feeding of the fish automatic feeder with selectable intervals D continuous registration of move-Number of fish 15-20 ments all over the aquarium Length of fish 4-6 cm D alarm-relevant signals Recommended tank 4 weeks D reduction of false alarms time of fish D low maintenance tion! Optional features dechlorination system, visual alarm indicator, support stand rae D easy service for desktop operation, pressure reducer/strainer alto D reliable data evaluation Optional interfaces 4-20mA (2x), RS232, RS485, GSM, SCADA Subject t D add-ons Additional sensors oxygen, pH, redox, conductivity, absorption; others available on request Your local bbe dealer… biological • biophysical • engineering bbe moldaenke Preetzer Chaussee 177 | 24222 Schwewntinetal | Germany phone (+49) 431 38040 -0 fax (+49) 431 38040 -10 e-mail info@bbe-moldaenke.de Part of the EU-funded net www.bbe-moldaenke.de Techneau project