+86 17853698681
×
Popular searches: Multi parameter water quality analyzer Infrared spectrophotometer oil analyzer COD analyzer Biological toxicity analyzer
CN
P

Product Center

Recommended articles

Positioning iconCurrent location:HOME>PRODUCT>Other related tests>Suspended Solids Turbidity Meter>HM-SXT2 Portable Turbidity Meter for Water Quality Monitoring
HM-SXT2 Portable Turbidity Meter for Water Quality Monitoring

HM-SXT2 Portable Turbidity Meter for Water Quality Monitoring HM-SXT2

【Introduction】The HM-SXT2 addresses the challenge of measuring turbidity across a wide concentration range in drinking water, wastewater, and environmental monitoring. Its scatter-transmission dual-mode detection with automatic switching covers 0–4000 NTU, eliminating manual range selection or sample dilution while maintaining ISO 7027 and HJ 1075-2019 compliance for regulatory reporting.
Phone Icon+86 17853698681

Product details

Portable turbidity meters deployed for field water quality assessment at treatment plants and environmental sites

Key capabilities of turbidity testing instruments including Android touchscreen WiFi and waterproof for environmental monitoring

Water quality monitoring applications across environmental waterworks sewage treatment and aquaculture industries

Technical diagram of scatter and transmission light turbidity detection method for water analysis laboratories

Comparison of transmission and scattering turbidity measurement methods for water treatment facility selection

Field operator using turbidity meter touchscreen for on-site drinking water quality measurement

Precision optical detection system with 860nm LED for low-level turbidity measurement in drinking water compliance

Calibration interface for multi-point turbidity standardization in regulatory compliance water quality testing

Data management system for uploading water quality turbidity records to laboratory networks via WiFi and USB

IP65 waterproof turbidity meter for field deployment in harsh environmental monitoring conditions

Desktop turbidity analyzer for laboratory suspended solids measurement in wastewater treatment facilities

Technical specification table for transmission-method turbidity meter in water quality laboratory applications

Technical specification table for scattering-method turbidity meter meeting ISO 7027 water quality standard

Hengmei manufacturing facility with quality assurance team for water quality instrument production

Research laboratory testing water quality instruments for environmental monitoring and food safety applications

Product Introduction

In water quality management, turbidity measurement is not merely a regulatory checkbox — it is a frontline indicator of treatment process effectiveness and distribution system integrity. Drinking water regulations such as GB 5749 set strict turbidity limits, while wastewater discharge standards require continuous monitoring of effluent clarity. Traditional single-mode turbidity meters often struggle with wide-range measurement: scatter-mode instruments lose accuracy at high turbidity, while transmission-mode devices lack sensitivity at low levels. This forces operators to perform manual dilutions or switch instruments, increasing measurement time and introducing error sources.

The HM-SXT2 portable turbidity meter solves this problem through its scatter-transmission composite detection system. Using an 860 nm LED light source, the instrument operates in high-sensitivity scattered light mode for low-to-medium turbidity ranges (typical of finished drinking water and clean environmental samples). When turbidity exceeds the scatter-mode threshold — common in raw wastewater, storm runoff, or process tank samples — the system automatically switches to transmitted light mode, measuring turbidity via light attenuation. This seamless transition extends the measurable range to 0–4000 NTU without operator intervention, eliminating dilution errors and reducing total analysis time.

The instrument is built for field deployment: an Android-powered 4.3-inch touchscreen provides intuitive operation in outdoor conditions, while the IP65-rated waterproof body withstands rain, splashing, and dusty environments typical of water treatment plants and field sampling sites. With 16 GB of storage for over 10,000 records and Wi-Fi, Bluetooth, and USB connectivity, measurement data can be uploaded directly to laboratory information management systems for compliance reporting. For detailed guidance on turbidity measurement standards and methods, see our turbidity measurement technical guide.

Applications

  • Drinking water treatment plants: raw water intake monitoring, sedimentation tank effluent verification, finished water compliance testing per GB 5749
  • Wastewater treatment facilities: influent turbidity characterization, biological treatment process monitoring, effluent discharge compliance verification
  • Environmental monitoring stations: river, lake, and reservoir water body assessment and pollution incident rapid response
  • Groundwater quality surveys: well water turbidity screening per GB/T 14848 quality standards
  • Food and beverage industry: process water and product water turbidity quality control
  • Pharmaceutical manufacturing: purified water and water for injection system turbidity monitoring
  • Aquaculture operations: pond and tank water clarity management for livestock health
  • Industrial cooling water systems: turbidity monitoring for heat exchanger fouling prevention

Key Features and Advantages

  1. Scatter-transmission dual-mode detection with automatic switching eliminates manual range selection, covering 0–4000 NTU in a single instrument without sample dilution
  2. 860 nm LED light source per ISO 7027 standard avoids visible-color interference, delivering accurate results for colored or tinted water samples
  3. 10 mm × 10 mm large-area photocell provides high sensitivity at low turbidity levels, detecting trace suspended solids in finished drinking water
  4. Android operating system with 4.3-inch HD touchscreen offers graphical workflow guidance, reducing operator training time in multi-user field teams
  5. IP65 waterproof enclosure and liquid-resistant detection chamber enable reliable operation in rain, high-humidity, and washdown environments at treatment plants
  6. 16 GB internal storage holds over 10,000 measurement records with timestamp and sample ID, supporting audit trail requirements for regulatory compliance
  7. Wi-Fi, Bluetooth, and USB triple connectivity allows direct data upload to LIMS or regulatory platforms from the field, eliminating manual data transcription errors
  8. Optional Bluetooth printer generates on-site hardcopy reports for immediate documentation during field inspections and audits
  9. USB-C 5V 2.1A charging with BC2.1 protocol and 8000 mAh battery supports full-day field campaigns without recharging, compatible with standard power banks
  10. Multi-unit display (NTU, FAU, FNU, FTU, EBC, ASBC) accommodates different industry reporting standards without manual conversion
  11. Continuous multi-point calibration with zero-point calibration and built-in standard support ensures measurement traceability across calibration intervals
  12. Chinese/English bilingual interface serves both domestic regulatory teams and international project requirements
  13. Average measurement mode automatically performs multiple readings and calculates the mean, reducing random error in unstable or settling samples
  14. Compliance with HJ 1075-2019, ISO 7027, JJG 880-2006, GB 5749, CJ 3020, and GB/T 14848 standards covers drinking water, source water, and groundwater regulatory frameworks

Technical Specifications

ParameterSpecification
Measurement MethodScatter method + Transmission method (automatic switching)
Light SourceLED
Light Source Wavelength860 nm
Measurement Range0–4000 NTU
Resolution0.001 NTU
Indication Error±6%
Repeatability≤0.5%
Zero Drift±0.5% FS / 30 min
Indication Stability±0.5% FS / 30 min
Protection RatingIP65
Operating EnvironmentTemperature 5–40°C; Humidity <85%
Power SupplyUSB-C 5V 2.1A, supports BC2.1 protocol
Battery Capacity8000 mAh
Dimensions246 mm × 59.4 mm × 84 mm (L×W×H)
Weight0.59 kg
Display UnitsNTU, FAU, FNU, FTU, EBC, ASBC
Internal Storage16 GB, >10,000 records
ConnectivityWi-Fi, Bluetooth, USB
Operating SystemAndroid, Chinese/English bilingual
Display4.3-inch HD touchscreen
Applicable StandardsHJ 1075-2019, ISO 7027, JJG 880-2006, GB 5749, CJ 3020, GB/T 14848

FAQ

Q: How does the scatter-transmission dual-mode system work in practice?

A: The HM-SXT2 continuously monitors the scattered light signal during measurement. For low-to-medium turbidity samples (typically 0 to several hundred NTU), the instrument operates in scatter mode, where a sensor positioned perpendicular to the light beam measures scattered light intensity proportional to turbidity. When the turbidity signal exceeds the scatter-mode threshold, the system automatically activates transmission mode, measuring the attenuation of light passing directly through the sample. This transition is seamless and requires no operator intervention, allowing a single measurement cycle to cover the full 0–4000 NTU range without manual range switching or sample dilution.

Q: What standards does the HM-SXT2 comply with for regulatory reporting?

A: The instrument complies with HJ 1075-2019 (Water quality — Determination of turbidity — Turbidimetric method), ISO 7027 (Water quality — Determination of turbidity), and JJG 880-2006 (Verification Regulation of Turbidity Meters). It also supports measurement workflows aligned with GB 5749 (Standards for drinking water quality), CJ 3020 (Water quality standard for drinking water sources), and GB/T 14848 (Quality standard for ground water). The 860 nm LED light source meets the ISO 7027 wavelength specification for nephelometric turbidity measurement.

Q: Can the HM-SXT2 be used outdoors in rainy or humid conditions?

A: Yes. The instrument carries an IP65 protection rating, meaning it is dust-tight and protected against water jets from any direction. The detection chamber is additionally designed to resist 0.5 ml of liquid intrusion. This makes the HM-SXT2 suitable for field deployment at water treatment plants, environmental sampling sites, and aquaculture facilities where rain, splashing, and high humidity are common. The 8000 mAh battery supports full-day field operation without recharging.

Q: How does the 860 nm wavelength benefit turbidity measurement?

A: The 860 nm near-infrared wavelength specified in ISO 7027 minimizes interference from the natural color of water samples. Many surface waters, wastewater, and industrial process waters contain dissolved substances that absorb visible light, which can cause falsely elevated turbidity readings on instruments using visible-spectrum light sources. By using 860 nm, the HM-SXT2 ensures that the measured signal primarily reflects particulate scattering rather than color absorption, delivering more accurate turbidity values for colored samples.

Q: How is measurement data managed and exported for compliance documentation?

A: The HM-SXT2 stores over 10,000 records with 16 GB internal memory, each record including measurement value, timestamp, and sample identifier. Data can be transferred via Wi-Fi, Bluetooth, or USB to a PC for batch upload. The Android-based system supports direct export to spreadsheet formats for compliance archiving. An optional Bluetooth printer enables on-site hardcopy report generation during field inspections. The multi-unit display (NTU, FNU, FAU, etc.) accommodates different regulatory reporting conventions without manual conversion.

Q: What calibration options does the HM-SXT2 support?

A: The instrument supports continuous multi-point turbidity calibration, allowing users to establish a calibration curve across multiple standard concentrations for improved accuracy over the full measurement range. Zero-point calibration eliminates background scatter from the sample cell and optical system. The built-in standard feature provides a quick verification check between full calibrations. Average measurement mode performs multiple readings and calculates the mean value, reducing random error in samples with settling particles or unstable suspensions.

Article address:https://www.hmwatertesting.cn/suspended-solids-turbidity-meter/turbidity-meter-water-quality-monitoring.html

Related articles

Related products