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20267000T10Z001K000
JUMO ecoLine NTU
Optical Sensor for Turbidity Measurements
Brief description
The turbidity measurement according to DIN EN ISO 7027 is a tried and tested method for mon-
itoring waters with low to strong turbidity.
The measuring principle of the JUMO ecoLine NTU turbidity sensor is based on an infrared light
measurement according to the 90 ° scattered light method. Thanks to the light measurement at
a wavelength of 880 nm and the wide measuring range of 0 to 4,000 NTU, the sensor can be
used in an array of water and wastewater treatment applications, e.g. for monitoring the water
quality, detecting filter leaks, and for wastewater final inspection.
The JUMO ecoLine NTU stores its calibration data and history directly in the sensor electronics,
meaning that it can be used quickly anywhere without the need for constant recalibration.
The sensor is characterized by its slim and robust design.
Suitable fittings are required for the installation of the sensor, e.g. in order to prevent the influ-
ence of extraneous light and the resulting measurement errors. For the corresponding immer-
sion, suspended, and flow fittings that are available, see page chapter "Fittings", page 7.
The robust, simple sensor is particularly well-suited to the following areas of application:
• Drinking water treatment
• Water protection
• Fish farming companies
• Municipal and industrial sewage treatment plants
• Process plants
• Paper industry
Type 202670/...
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Technical data
Specifications
Interfaces
Electrical data
Case
Measuring principle Optical, nephelometric turbidity measurement with 90 ° scattered light according to DIN EN ISO
7027
Measurands Turbidity
Temperature
Measuring ranges 0 to 4,000 NTU in a choice of 4 measuring ranges as well as automatic measuring range detection:
• 0.00 to 50.00 NTU
• 0.0 to 200.0 NTU
• 0 to 1,000 NTU
• 0 to 4,000 NTU
Resolution 0.01 to 1, depending on measuring range
Accuracy < 5 % from NTU measured value
Max. sampling rate for measured values 1 Hz
Temperature range 0 to +50 °C
Pressure range Up to 5 bar
Storage temperature -10 to +60 °C
Signal interface RS485 interface with Modbus RTU protocol
a
a
Only in connection with suitable Modbus master devices, see "Display unit / controller" on page 2.
Voltage supply DC 5 to 12 V
Current consumption
Standby 40 µA
RS485 on average 820 µA (at 1 measurement per second)
Current pulse (starting current peak) 500 mA, heat-up time: 100 ms
Connection 4-conductor shielded cable, optionally with open conductor ends with ferrules or with M12 plug
Electromagnetic compatibility Acc. to EN 61326-1
Interference emission Class A
Interference immunity Industrial requirements
Dimensions Ø 27 mm × 147 mm (sensor case without cable)
Weight
Sensor including 10 m cable 720 g
Sensor including 30 m cable 1,850 g
Length of permanent cable 10 m, 30 m
Materials
Sensor case PVC, POM-C
Optical window PMMA
Connection cable polyamide
Protection type IP68