Aztec ATS430 | Turbidity sensor
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OI/ATS430–EN Rev. H 25
8 Specification
Sensor type
Optical nephelometric turbidity and suspended solids sensor
Sensor
IP rating
IP68
Range
Turbidity: 0 to 4000 NTU
Suspended solids: dependent on sample:
– up to 5000 mg/l kaolin
– up to 15000 mg/l Fullers earth
– up to 100,000 mg/l SiO
2
Accuracy
1,2
Turbidity: <±2 % measured value
Suspended solids: dependent on sample
Repeatability & Limit of Detection
Repeatability
1
: <1 %
Limit of detection
3
: 0.006 NTU
Display resolution
Turbidity: 0.001 NTU
Suspended solids: 0.001 mg/l
Response time
T90 < 30 s with filtering disabled
Storage conditions
–5 to 70 °C (23 to 158 °F)
Operating temperature
0 to 60 °C (32 to 140 °F)
Operating pressure
Up to 10 bar (145 psi) for metal versions
Dimensions
40 mm (1.57 in.) diameter
180 mm (7.08 in.) length
Weight
Stainless steel: approx. 0.65 kg (1.43 lb) without cable
Titanium: approx. 0.4 kg (0.88 lb) without cable
Power
Consumption (maximum)
100 mA @ 24 V DC
Cable
Fixed length
1 or 10 m (3.28 or 32.8 ft.)
EZLink digital sensor connector IP rating
IP67 (when connected)
Extension cable (options)
1, 5, 10, 15, 25, 50 m (3.2, 16.4, 32, 49.2, 82, 164 ft.)
Maximum length (including optional extension cable)
Up to 210 m (826 ft.)
Methods
ISO7027:1999, Water Quality – Determination of turbidity
Materials of construction
Stainless steel version
316L Stainless Steel, Viton, Noryl (wiper version only),
Sapphire and F08 Epoxy
Titanium version
Titanium grade 2, Sapphire and F08 Epoxy
Sensor flow cell body
ABS
Retractable insertion assembly
Parts in contact with sample:
Stainless steel (316/1.4408), Viton, TFM™1600
1
Tested in accordance with MCERTS: Performance Standards and Test
Procedures for Continuous Water Monitoring Equipment. Version 3.1:
Environment Agency 2010.
2
±0.1 NTU for measurement below 5 NTU, provided an accurate
calibration is performed to compensate for environmental
interferences. To achieve the best accuracy at low levels a two-point
calibration is advised.
3
Tested in accordance with BS ISO 15839: 2003.
DS/ATS430-EN Rev. E
