1. Experts in Chem-Feed and Water Treatment Handheld Photometer for Calibration of Sensors  Basics photometry  Portable photometer  Overview photometer – calibration - sensors  DT 1 measuring ranges; DT 2 measuring ranges  DT 3 handheld photometer for hydrogen peroxide  DT 4 handheld photometer for chlorite

2. Experts in Chem-Feed and Water Treatment 1.1.20032 Portable Photometer Measuring Chamber Cuvettes 9 V Battery reagents Mixer cuvette cleaning brush Display keypad

3. Experts in Chem-Feed and Water Treatment 1.1.20033 Photometer DT 1 – measuring ranges  0.05…6.0 mg/l free chlorine (DPD 1) + total chlorine (DPD3)  0.1…13.0 mg/l bromine (DPD 1)  0.05…11 mg/l chlorine dioxide (DPD 1)  0.03…4.0 mg/l ozone (DPD 4)  pH 6.5…8.4 (phenol red tablets)  1…80 mg/l cyanuric acid Photometer DT 2 – measuring ranges  0.05…2.0 mg/l fluoride  0.05…6.0 mg/l free chlorine and total chlorine  0.05…11.0 mg/l chlorine dioxide

4. Experts in Chem-Feed and Water Treatment 1.1.20034 3 Ordering information  Photometer DT3 complete with bag: Order no. 1023143  Reagent for hydrogen peroxide, 15ml, Order no. 1023636  5 pieces round cells with cap (diameter 16 mm), Order no. 1024072 123123 1 23 Photometer DT3 for Determination of H 2 O 2

5. Experts in Chem-Feed and Water Treatment 1.1.20035 3 Features/Customers Benefit  Customized measuring ranges for calibration of the H 2 O 2 -Sensor  Two measuring ranges: 1 to 50 mg/l and 40 to 500 mg/l = ppm  Unique photometer for H 2 O 2 with these measuring ranges  Simple handling and simultaneously high accuracy  Simplier than extensive preparation of standard solutions  More accurate, than rapid colorometric test sticks  Faster than titration  DEV-based Method (Deutsche Einheitsverfahren H 15)  reliable, approved method with less interferences  long term stable dye; so different reading time is not critical Photometer DT3 for Determination of H 2 O 2

6. Experts in Chem-Feed and Water Treatment 1.1.20036 3 Ordering Information  Photometer DT4 complete with bag, order no. 1022695  Stirrer for stripping og chlorine dioxide, order no. 1022754  3 pieces spare cells, order no. 1007566  DPD reagent set, each bottle 15 ml, order no. 1007567  Chlorine dioxide tablets Nr.1 R 127, order no. 501317  Chlorine dioxide tablets Nr.2 R 128, order no. 501318 123456123456 1 2 3 4 5656 Photometer DT4 for Determination of Chlorite

7. Experts in Chem-Feed and Water Treatment 1.1.20037 3 Features/Customer Benefits  Beside chlorite also the parameter: ClO 2 and chlorine available  Customized measuring range for calibration of the chlorite-sensor  Measuring range: 0.03 up to 2,5 mg/l = ppm  Unique photometer for chlorite with this measuring range  Simple handling beside effectual accuracy  Simpler and more cost effective than ionchromatography  Effectual accurate for calibration of the chlorite-sensors  Optimized DPD-based method for chlorite  Stripping of chlorine dioxide by the help of enclosed stirrer Photometer DT4 for Determination of Chlorite