


MDE822-8506 Black and white
Keywords:Water Quality Instrument丨Environmental monitoring Instruments
MDE822-8506 Black and white Details
Product Overview
The MDE822-8506 Online pH/ORP Meter is a microprocessor-based water quality online monitoring and control instrument. Equipped with pH or ORP electrodes, it is widely used in power plants, petrochemical industries, metallurgy, mining, papermaking, bioprocessing, pharmaceuticals, food and beverage, environmental water treatment, aquaculture, modern agriculture, and other sectors. It provides continuous monitoring and control of pH (acidity/alkalinity), ORP (oxidation-reduction potential), and temperature in aqueous solutions.
Key Features
Intelligent menu operation | Manual/automatic temperature compensation | |||||||||||||
Data logging | Three relay control switches | |||||||||||||
4-20mA/RS485 multiple connection options | High/low limit control with hysteresis adjustment | |||||||||||||
Differential signal measurement mode for stable performance | Password protection to prevent unauthorized operation |
Structural Design
01/ Fully Sealed Operation Buttons | 02/ Anti-Interference Enclosure | 03/ Waterproof Connectors |
Seamless, dustproof, waterproof design with comfortable tactile feedback. | High-density, durable, anti-aging, dustproof, and corrosion-resistant housing. | High durability and long-lasting performance. |
Dimensions
Controller dimension | Install the fixture on the instrument | Installation completion diagram |
Technical Specifications
Parameter | Configuration | ||||
Measurement Range | pH: -2.00–16.00 pH;ORP: -2000–+2000 mV;Temperature: -10.0–150.0°C (electrode-dependent) | ||||
Accuracy | pH: ±0.01 pH;ORP: ±2 mV;Temperature: ±0.3°C | ||||
Temperature Compensation | Automatic or manual | ||||
Resolution | pH: 0.01 pH;ORP: 1 mV;Temperature: 0.1°C | ||||
Stability | pH: ≤0.01 pH/24h;ORP: ≤2 mV/24h | ||||
3 sets of Relay Control | 5A 250VAC ,5A 30VDC | ||||
Power Supply | 85–265VAC ±10%, 50Hz±1Hz, ≤3W | ||||
9–36VDC, ≤3W | |||||
2 Current Output | 0/4–20 mA (Load <500Ω) | ||||
20–4 mA (Load <500Ω) | |||||
Communication Output | RS485 Modbus RTU | ||||
Dimensions | 235*185*120mm | ||||
Protection Rating | IP65 | ||||
Installation | wall-mounted | ||||
Weight | 1.5 kg | ||||
Operating Environment | Temperature: -10–60°C | ||||
Humidity: ≤90% RH,No strong magnetic interference (except Earth’s field) |
Applications
Chemical plants | Sewage treatment plants | Emission monitoring stations for industrial enterprises |

Company Profile
Huper Labsun Instrument (Jiangsu) Co., Ltd. is a professional company dedicated to the field of environmental monitoring and related monitoring instruments, process control instruments and other products. The company's instrument products are more complete than the peers, covering a wide range. Mainly includes: water quality process instrument series, various transmitter series, level, liquid level detection series, flow meter series, switch slip ring series, gas detection series, water analysis instrument series, flue gas related products, etc.
We know that the pursuit of perfect quality and service, pay attention to meet the challenge has been the root of the continuous development of modern environmental protection. Enterprises can only develop better under the premise of protecting the environment. Therefore, since the establishment of our company, we will protect the environment on which we live as the first purpose of business establishment, in order to make the sky more blue, make the mountains more green, make the water more clear silently do their own efforts. The excellent advanced technology and customers to achieve a win-win goal, and constantly explore a win-win road to environmental protection and efficiency.
Company vision: To become an internationally renowned water quality testing solution service expert!
Certifications



FAQ
Q1: What about your delivery time? And how do you delivery the goods?
A: Yes, We design and manufacture our products by ourselves. We can make OEM according to your requirements, including packing, logo print etc.
Q2: Can you offer OEM or design services?
A: Yes, We design and manufacture our products by ourselves. We can make OEM according to your requirements, including packing, logo print etc.
Q3: How does your factory do regarding QC?
A: Quality is priority. We have many years of experience in the water treatment industry.We always consider quality as the most important thing during the whole production process.Our factory has gained ISO9001.
Q4: What's your main producs?
A: Multi parameter, PH / ORP Meter, electrical conductivity meter, dissolved oxygen meter, turbidity meter, residual chlorine analyzer, COD/BOD analyzer, level meter, flow meter and other water quality analyzer.
Q5: Where is it often used?
A: our products are widely used in Wastewater treatment, Thermophilic Fermentation, Pow plant of steam and water analysis system,Drinking water plant, Swimming pool, Shrimp and fish farming. we provide a complete water quality monitoring solution.
Related picture books
Other Products
Online Message
Certifications
Specializing in the field of environmental monitoring and related monitoring instruments and meters