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Section 1.10 Specifications, Total Chlorine Sensor
Specifications, Total Chlorine Sensor
Analyte
Total chlorine
Membrane type
Hydrophilic membrane
Measuring cable
connection
2-pin terminal, polyamide PG7 screw connection;
wire cross section 2x 0.25mm2, cable diameter approx. 4 mm
Voltage supply
UB 12 to 30 V DC (electrical isolation recommended)
Electromagnetic
compatibility
According to EN 61326-1
Interference emission: Class B
Interference immunity: To industrial requirements
Output signal
4 to 20 mA
Settling time
2 h o u r s
Incident flow velocity
Approx. 15cm/s or 30L/hr (8 GPH)
Measuring ranges
0 to 0.5 mg / l (ppm)
0 t o 2 mg / l (ppm)
0 to 5 mg / l (ppm) 0
to 10 m g / l (ppm) 0
to 20 m g / l (ppm)
Response time t90
About 2 min
Operating temperatures /
temperature compensation
+5 to +45 °C
Zero point adjustment
Not required
pH value operating range
4 to 12 pH
pH dependency
(loss of slope)
Linear decrease of approx. 5 % per each upward pH unit (starting from pH 7)
Disruptive substances /
cross sensitivity
Chlorine dioxide, Ozone. Calcium deposits. Iron interferes with electrode
function and must not exceed USEPA MCL
Pressure resistance
pabs max. 2 bar
prel max. 1 bar
No pressure fluctuations are admissible when operating under pressure.
We recommend unpressurized operation (atmospheric pressure).
Material
Shaft, cover, cap: PVC
Membrane disk holder: stainless steel
Dimensions
Diameter: 25mm, length: 220mm
Weight
about 125g
Maintenance
Check the measurement signal: regularly, at least once a week
Replace the membrane cap: once a year (subject to water quality)
Change the electrolyte:
every 3 to 6 months
Storage
Sensor: frost-free, dry and without electrolyte, can be stored for an
unlimited time at +5 to +45 °C
Electrolyte: In the original bottle and protected against sunlight at +5 to
+25 °C
