Pr
o
Minent
®
44
14
Technical Data
Measured
variable
Total chlorine:
free chlorine (Cl
2
(dissolved) HOCl, OCl-)
bound chlorine (chloramines)
organic bound chlorine (e.g. cyanuric acid derivates)
Applications
Potable, industrial, process and cooling water,
brine and sea water for swimming pool and Jacuzzi treatment
Measurement
CTE 1-mA-0.5 ppm
0.01 - 0.5 mg/l
standard slope: 24 mA/ppm
range and
CTE 1-mA-2 ppm
0.02 - 2.0 mg/l
standard slope: 6 mA/ppm
standard slope
CTE 1-mA-5 ppm
0.05 - 5.0 mg/l
standard slope: 2.4 mA/ppm
CTE 1-mA-10 ppm
0.01 - 1.0 mg/l
standard slope: 1.2 mA/ppm
CTE 1-DMT-10 ppm
0.01 - 10 mg/l
standard slope: 32.5 mV/ppm
Solution
Corresponds to lower measurement range limit
Reaction time
T
90
approx. 60 s (as concentration rises and falls)
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:
max. 3 bar (no pressure spikes
allowed)
Flow
sample water through DLG III and DGM in-line
probe housing:
optimum: 30 l/h
minimum: 20 l/h
maximum: 100 l/h
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:
PPE
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
electrically isolated
CTE 1-DMT: 0-1000 mV after connection to DULCOMETER
®
DMT
Enclosure rating
IP 65
Storage
temperature
between 5
°
C and 50
°
C
Technical Data
BA_DT_106_12_09_4spr.p65
15.12.2009, 10:26 Uhr
44
