Technical Data - ProMinent DULCOTEST CTE Mode D'emploi

Technical Data

14 Technical Data
Measured
variable Total chlorine:
Applications Potable, industrial, process and cooling water,
brine and sea water for swimming pool and Jacuzzi treatment
Measurement CTE 1-mA-0.5 ppm
range and CTE 1-mA-2 ppm
standard slope CTE 1-mA-5 ppm
CTE 1-mA-10 ppm
CTE 1-DMT-10 ppm
Solution Corresponds to lower measurement range limit
Reaction time T
90
pH range 6.5 – 9.5
pH-
dependency Jump from pH 7 to pH 8: approx. -10 % for free chlorine
Conductivity
water sample 0.03 - 40 mS/cm
Temperature
range 5 - 45 °C, temperature compensation integrated, no quick changes in
temperature allowed
Pressure sample water in DLG III in-line housing: max. 1 bar (free outlet)
sample water in DGM in-line housing:
Flow sample water through DLG III and DGM in-line
probe housing:
Cross sensitivity Oxidising reagents e.g. bromine, iodine, ozone, chlorine dioxide,
permanganates result in false positive results.
Reducing reagents like sulphides, sulphites, thiosulphates, and hydrazine
result in false negative results.
Service life
membrane cap Typically 3 - 6 months, depending on water quality
Materials Membrane cap:
Electrode shaft: PVC
Supply voltage 16 - 24 V DC; min 35 mA at 16 V DC
Output signal CTE 1-mA: 4-20 mA, temperature-corrected, un-calibrated and not
CTE 1-DMT: 0-1000 mV after connection to DULCOMETER
Enclosure rating IP 65
Storage
temperature between 5 °C and 50 °C
44
free chlorine (Cl
bound chlorine (chloramines)
organic bound chlorine (e.g. cyanuric acid derivates)
0.01 - 0.5 mg/l
0.02 - 2.0 mg/l
0.05 - 5.0 mg/l
0.01 - 1.0 mg/l
0.01 - 10 mg/l
approx. 60 s (as concentration rises and falls)
PPE
electrically isolated
(dissolved) HOCl, OCl - )
2
standard slope: 24 mA/ppm
standard slope: 6 mA/ppm
standard slope: 2.4 mA/ppm
standard slope: 1.2 mA/ppm
standard slope: 32.5 mV/ppm
max. 3 bar (no pressure spikes
allowed)
optimum: 30 l/h
minimum: 20 l/h
maximum: 100 l/h
® DMT
®
ProMinent