Case | ACITEK

ACITEK, since 2005, specializes in water quality sensors, providing OEM/ODM service for pH, ORP, conductivity, DO, ion electrodes.

ACITEK G400-COND 4-Wire Conductivity Transformer for Pharmaceutical Purified Water System

A medium-sized biopharmaceutical manufacturer in Jiangsu runs a full-process purified water system, including multi-media filtration, activated carbon filter, two-stage RO reverse osmosis, mixed ion exchange bed and finished water storage tank. Purified water is used for reagent preparation, equipment cleaning and injection auxiliary production, requiring stable conductivity ≤ 2.0 μS/cm (25°C) to meet GMP standards.

2026 08 17

Application Case Study: ACITEK LDO Model 1 (AC9020000-SW) Luminescent Dissolved Oxygen Sensor

ACITEK LDO Model 1 is an optical luminescent dissolved oxygen probe optimized for seawater, municipal wastewater secondary treatment, nutrient monitoring and effluent discharge supervision. Different from traditional polarographic DO sensors, this LDO probe adopts luminescent oxygen quenching technology, featuring factory pre-calibration, no membrane replacement, no electrolyte refilling, zero measurement drift and strong anti-interference against sulfide, chloride and heavy metal ions. With compact Noryl & stainless steel structure, 0–20 mg/L measuring range and 3.5 bar pressure resistance, it delivers long-term stable online monitoring with minimal maintenance cost.

2026 08 03

Application Case Article: ACITEK AC58031404 SS316L 2-Electrode Conductivity Sensor (3/4NPT, K=1cm⁻¹)

Water conductivity is a core process parameter to judge water purity, electrolyte concentration, pipeline corrosion risk and wastewater discharge compliance. ACITEK AC58031404 is a 2-electrode conductivity sensor with 3/4NPT standard thread, SS316L all wetted parts, built-in PT1000 temperature compensation and 1 cm⁻¹ cell constant, covering a full measurement range of 0.02~50,000 µS/cm. It withstands 17 bar pressure & 93℃ medium temperature, equipped with a 5m standard signal cable, supporting OEM/ODM customization of cable length. Combined with DIN rail compact transmitters like ACITEK G100 series, it has formed stable online monitoring solutions for power plant water, semiconductor ultrapure water, fine chemical process liquid, industrial circulating water and wastewater treatment. This article shares 4 real industrial application cases of this sensor, showing its performance advantages and on-site value.

2026 07 29

ACITEK G300 Online DO Transmitter + DO6800 High-temperature Dissolved Oxygen Electrode

2026 06 04

The seawater backflow monitoring project of Chongming County Water Conservancy Project Management Office.

The project is of great significance as it concerns the water safety of the entire residents and crops on Chongming Island. Previously, without automatic monitoring of whether seawater was backflowing, seawater often entered Chongming Island, affecting the growth of crops and resulting in low crop yields. It has increased the cost of water quality treatment in the early stage of waterworks.

2025 05 16

The water quality monitoring project for ornamental fish in Baodi, Tianjin

This project is a collaboration from Taiwan. The biggest challenge of this project lies in the large number and long distance of monitoring points. There are a total of 45 monitoring points, and each point needs to measure three parameters (pH, dissolved oxygen and temperature). Transmitting the data to the central control room using the traditional 4-20mA would waste a lot of signal lines and be unstable.In this case, I proposed to change the original 4-20mA output of the instrument to RS485. In this way, the 45 monitoring points can be connected in series and finally transmitted to the central control room through one data bus. This not only reduces the number of signal lines but also brings convenience to the on-site installation and commissioning.

2025 05 16

Procurement Project of Testing and Office Equipment for Anhui Provincial Environmental Protection Bureau.

This project is public bidding of the government, as a project leader for the first time to participate in such a large government bidding or has the certain difficulty, need to start from the prepared data, do the tender, including instrument selection, I chose the company pH6 + acidity meter, portable water quality analyzer its advantage is that English friendly interface, simple operation; It has gained the trust of the environmental protection government, providing a basis and guarantee for local environmental protection bureaus to better monitor water quality, making a significant contribution to the safety of drinking water in Anhui Province, receiving unanimous praise from the industry, and enhancing the company's reputation.

2025 05 16