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Water Quality Conductivity Sensor

Water Quality Conductivity Sensor HM-S7

【Introduction】Contact electrode method, measurement range: 0~10000uS/cm
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Product details

Application Environment Description

Used for environmental water quality testing and various high/low ion strength water sample testing, it can meet the requirements of most industrial/environmental applications for online conductivity measurement.

Signal output: RS485 (MODBUS-RTU).

Internal signal isolation technology has strong interference.

Good reproducibility, thermal stability, low drift, small size, fast response speed

Easy to install, simple, 3/4NPT pipe thread, easy to sink or install in pipelines and tanks

Stable performance and long service life

IP68 waterproof standard

24*1.2 18*1.5*2 28*2 2

Technical performance and specifications

1. Technical parameters

Measurement principle: Contact electrode method

Signal mode: RS485 (MODBUS-RTU)

Measurement range: 0~10000uS/cm

Measurement resolution: 1

Measurement accuracy: ± 1.5%; ±0.1 °C

Response time: approximately 30 seconds (98% static liquid)

Shell material: ABS and 316L stainless steel

Temperature compensation: Automatic temperature compensation (M1820Z)

Cable length: standard 5 meters

Supply voltage: 12-24VDC( 0.4W@12V )

Measurement environment: temperature 0~50 ℃ (non freezing),<0.2MPa

Waterproof rating: IP68

Installation method: Immersion installation, NPT3/4 thread

2. Dimensional drawing

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The sensor connector is an M12 aviation plug connector with a 5-pin female socket

Installation and electrical connections

1. Installation

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Attention: The sensor should not be installed upside down or horizontally, and should be installed at an angle of at least 15 degrees.

2. Electrical installation

The cable is a 5-core shielded wire, and the line sequence is defined as brown - power line (12~24VDC)

Black Ground (GND)

Blue -485A Green -485B

Yellow -4-20mA current output (can be suspended if not in use)

Before powering on, carefully check the wiring sequence to avoid unnecessary losses caused by wiring errors.

Maintenance and upkeep

1. Use and maintenance

Conventional electrodes require periodic cleaning and calibration, and maintenance intervals are determined by customers based on their own operating conditions. The cleaning method for conventional electrodes: Use a soft bristled brush to remove attachments (be careful not to scratch the electrode surface), then clean with distilled water, and then perform calibration operation.

Article address:http://www.hmwatertesting.cn/qtjc16/131.html

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