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Portable Turbidity Meter

Portable Turbidity Meter

Product Number：

HM-NTU

Product Difference：

Portable turbidity meter using turbidimetric method, 0.5–300 NTU, 0.001 NTU resolution. Android OS, 3.5″ touchscreen, WiFi & Bluetooth for field water quality testing.

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HM-NTU Portable Turbidity Meter

I. Product Description

The HM-NTU portable turbidity meter is a rapid water quality turbidity measurement instrument. It is used to measure the degree of light scattering caused by insoluble particulate matter suspended in water or transparent liquids, and to quantitatively characterize the concentration of these suspended particulate substances. The instrument employs the turbidimetric (transmission) method, offering a compact, lightweight design suitable for both laboratory and field applications.

II. Scope of Application

The HM-NTU portable turbidity meter is applicable to the following areas:

  1. Environmental monitoring: turbidity assessment of rivers, lakes, and groundwater

  2. Drinking water treatment: routine monitoring of raw water, filtered water, and distribution system quality

  3. Wastewater treatment: turbidity monitoring of influent, effluent, and treatment process stages

  4. Aquaculture: maintaining water clarity for healthy farming environments

  5. Food and beverage, pharmaceutical industries: monitoring process water and cleaning water quality

III. Applicable Standards

  1. HJ 1075-2019 Water Quality — Determination of Turbidity — Turbidimetric Method

  2. ISO 7027 Water Quality — Determination of Turbidity

  3. JJG 880-2006 Turbidity Meters

  4. GB 5749 Standards for Drinking Water Quality

  5. CJ 3020 Water Quality Standard for Drinking Water Sources

  6. GB/T 14848 Quality Standard for Ground Water

IV. Product Features

  1. Android Operating System: Intuitive graphical interface with user-friendly operation and efficient workflow navigation.

  2. 3.5-Inch Color LCD Touchscreen: High-resolution display with visual menu pages for improved operational efficiency.

  3. High-Reliability Light Source: Long-life LED source requiring no warm-up period, delivering consistent performance over extended use.

  4. High Sensitivity Detection: Absorbance sensitivity of 0.001, enabling fine distinction at low turbidity levels.

  5. Large Data Storage: Internal memory capable of storing over 80,000 measurement records for extended field campaigns.

  6. Multiple Connectivity Options: Type-C, WiFi, hotspot, and Bluetooth for flexible data transfer to PCs, printers, or cloud platforms.

  7. Extended Battery Life: 5600 mAh lithium battery providing up to 12 hours of continuous operation per charge.

  8. Compact and Portable: Dimensions of 190 × 77 × 72 mm with a weight of 325 g, designed for single-hand operation in the field.

V. Technical Specifications

Measurement Parameters

ParameterSpecification
Measurement Range0.5–300 NTU
Measurement MethodTurbidimetric (transmission) method
Resolution0.001 NTU
Measurement Error≤±10%
Repeatability<0.5%
Stability<0.5%
Sensitivity (Absorbance)0.001

System Configuration

ParameterSpecification
Operating SystemAndroid
Display3.5-inch color LCD touchscreen
Data StorageOver 80,000 records
CommunicationType-C, WiFi, Hotspot, Bluetooth

Power & Dimensions

ParameterSpecification
Battery5600 mAh lithium battery
Continuous Operating Time12 hours
Dimensions190 × 77 × 72 mm
Weight325 g

Operating Conditions

ParameterSpecification
Operating Temperature0 °C to 50 °C
Operating Humidity0% to 90%

VI. Frequently Asked Questions (FAQ)

Q1: What measurement method does the HM-NTU turbidity meter use?

A: The HM-NTU employs the turbidimetric (transmission) method. It measures the attenuation of a transmitted light beam as it passes through the sample, which correlates directly with the concentration of suspended particulate matter. This method is distinct from nephelometric (scatter-based) instruments that measure light scattered at 90°.

Q2: What is the measurement range and resolution of the HM-NTU?

A: The HM-NTU covers a measurement range of 0.5 to 300 NTU with a resolution of 0.001 NTU. This range is suitable for monitoring treated drinking water, surface water, and low-to-moderate turbidity process streams. For applications requiring higher range (above 300 NTU), consider the HM-SXT1 or HM-SXT2 models which use the nephelometric method and extend up to 2000 or 4000 NTU respectively.

Q3: How long does the battery last on a single charge?

A: The built-in 5600 mAh lithium battery supports up to 12 hours of continuous operation. This is typically sufficient for a full day of field sampling without requiring access to mains power. Charging is performed via the USB Type-C port, which supports standard BC 2.1 charging protocols and is compatible with common phone chargers and power banks.

Q4: How can measurement data be exported from the instrument?

A: The HM-NTU provides multiple data export options: Type-C USB connection for direct PC transfer, WiFi and hotspot connectivity for wireless data upload, and Bluetooth for pairing with printers or mobile devices. All measurement records are stored internally with capacity for over 80,000 entries.

Q5: What standards does the HM-NTU comply with?

A: The instrument is designed in accordance with HJ 1075-2019 (Water Quality — Determination of Turbidity — Turbidimetric Method), ISO 7027 (Water Quality — Determination of Turbidity), and JJG 880-2006 (Turbidity Meters). It also supports monitoring requirements under GB 5749 (Drinking Water Quality Standards), CJ 3020 (Drinking Water Source Quality Standards), and GB/T 14848 (Ground Water Quality Standards).


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