LDD-801 Chinese Desktop Conductivity Meter

LDD-801 Chinese Desktop Conductivity Meter

The LDD-801 is the most powerful and user-friendly conductivity meter on the market. Featuring Chinese display and menu guidance, it offers extremely convenient operation, multiple functions, and high measurement accuracy. It is widely used for continuous monitoring of conductivity values in solutions across industries such as thermal power, chemical fertilizers, metallurgy, environmental protection, pharmaceuticals, biochemistry, food, and tap water.

Main Features

Chinese LCD display, Chinese menu interface, Chinese notepad.

Microcomputer-based: Utilizes high-performance CPU chips, high-precision AD conversion technology, and SMT mounting technology to achieve multi-parameter measurement, temperature compensation, and automatic range switching with high accuracy and repeatability.

High reliability: Single-board structure, touch-sensitive keys, no rotary switches or potentiometers.

Automatic measurement frequency switching: Prevents electrode polarization and improves measurement accuracy.

25°C conversion: Automatic/manual temperature compensation.

Automatic temperature compensation for ultrapure water.

Waterproof and corrosion-resistant design.

Network function: RS232 bidirectional communication, compatible with printers or TLab1.0 communication and data processing software (optional).

Historical data: Stores 3000 data points.

Notepad function: Records up to 200 entries.

Built-in real-time clock: Provides time reference for various functions.

Industrial watchdog: Ensures the instrument does not freeze.

Capable of measuring high-purity water: Equipped with a titanium alloy electrode (cell constant 0.01 cm⁻¹) and a sealed measurement cell.

Technical Specifications

Display: Chinese LCD display, Chinese menu operation

Measurement range:

Electrode constant × (1–20,000) μS/cm, 0–99.9°C

0.01–20 μS/cm (with 0.01 electrode);

0.1–200 μS/cm (with 0.1 electrode);

1.0–20.00 mS/cm (with 1.0 electrode);

10–200.0 mS/cm (with 10.0 electrode);

Resolution: 0.001 μS/cm, 0.1°C

Electrode constant: 0.001–15.0 cm⁻¹, software configurable

Temperature compensation range: Automatic/manual 0–99.9°C

Temperature coefficient: 0–10%/°C (referenced to 25°C)

Accuracy: ±0.5% FS, ±0.3°C

Communication interface: RS232 bidirectional communication

Power supply: AC220V±22V, 50Hz±1Hz, external power adapter

Operating conditions: Ambient temperature 0–60°C, relative humidity ≤90%

Data retention without power: >5 years

Clock accuracy: ±1 minute/month

Dimensions and weight: 202×202×68 mm, 1.0 kg

Standard configuration: One LDD-801 secondary meter, one HT10 power adapter, one CP-1.0 conductivity electrode, one T22 temperature electrode, one electrode holder set.