KS-710 Industrial Water Turbidity Sensor

The Apure KS-710 is an optical turbidity sensor for a compatible monitoring system. Confirm the supplied optical method, reporting unit, measuring interval and receiver; a controller’s dimensions and relays are not the bare sensor’s specifications.

  • Easy to operate
  • Widely used
  • Automation

The KS-710 measures the optical response of particles in water. A 90° scattering arrangement does not by itself define the reporting unit. Confirm the supplied method and its calibration basis before comparing NTU and FNU readings.

Install and check the optical measurement

  • Place the sensor in representative water within the approved temperature and pressure limits. Avoid trapped bubbles, deposits, direct aeration plumes and unapproved reflections from nearby walls or the vessel bottom.
  • Clean the optical window using the supplied procedure, check for scratches and fouling, and verify with the specified standards or reference samples after service.
  • Record the sensor/controller identities, measurement method, unit, calibration reference, temperature and installation. A change in colour, particle properties or sampling location can change the optical response.

Optical method and listed configurations

The existing optical description references 860 nm, a 0.01–4000 FNU interval and EN27027/ISO7027. Confirm these details and any standard-conformity statement for the exact ordered probe. Infrared measurement can reduce some colour effects, but it does not make the result immune to coloured particles, fouling, bubbles or changes in the sample.

The TD-400/TD-5000 ranges, wall-mounted dimensions and relay entries below are separately listed sensor/controller references. Confirm their relationship to the KS-710 in the actual quotation; do not combine their limits or apply controller supply/output assumptions to the probe.

Turbidity often changes with particle loading, but the optical response also depends on particle size, colour and composition. Do not treat turbidity as a direct TSS mass measurement or apply one universal conversion to mg/L. For river, effluent or process monitoring, verify the supplied sensor range and installation for the actual sample.

Turbidity controller

  1. Relay, output and the signal: The existing transmitter description lists three configurable relays and two-way analog output; the table below uses different relay/output descriptions. Confirm the ordered controller’s actual terminal schedule.
  2. Sensor and the sensor module: The listed transmitter configuration describes one sensor input. Confirm the supported sensor and interface for the supplied controller.
  3. Transmitter shell: The listed transmitter enclosure is IP65. Confirm mounting and weather protection for the installation; this is not a bare-probe immersion rating.
Electrode measurement rangeResolutionPrecision
TD-400: 1-100.00ntu0.01NTU±1%FS
TD-5000: 20-5000ntu0.1NTU±1%FS
Medium temperature: 0-50℃Environmental humidity: relative humidity is less than or equal to 85%
Size of instrumentInstallation
242mm*184mm*135mm(H*W*D)wall

Confirm the ordered sensor/controller pair and the actual relay/output schedule. The existing entries use different relay descriptions; the table has been retained as listed rather than choosing an unverified count.

BrandApure
ModelKS-710
Precision±1%FS
Medium temperature0-50℃
Electrode measurement rangeTD-400: 1-100.00ntu TD-5000: 20-5000ntu
ResolutionTD-400: 0.01NTU TD-5000: 0.1NTU
Control interface4-Relay(high-low point trigger)
Environmental humidityrelative humidity is less than or equal to 85%
Signal isolation output1 set of 4-20 ma; 2 sets of alarm relays
Dimensions242×184×135mm