High-precision Online Dissolved Oxygen Analyzer

Model：

HD-RY500M

Introduction：

High-precision Online Dissolved Oxygen Analyzer measures ppb-level dissolved oxygen in water and gas based on Clark electrode technology. Widely used for power plant and boiler water testing and semiconductor ultrapure water trace oxygen detection....

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Technical Specifications
Product video

I. Measuring Principle

The measurement is based on Clark electrode technology and is designed specifically for the determination of trace (ppb-level) oxygen in water and gases.

II. Applications

Detection and analysis of low-concentration dissolved oxygen in power plant and boiler feed water, and trace oxygen measurement in semiconductor ultrapure water.

III. Features and Advantages

1. High-resolution colour touch screen: 800 × 480 graphic dot matrix with a Chinese menu, convenient and real-time operation.

2. Curve display: measurement results are shown as real-time digits together with a trend curve, intuitive and convenient.

3. Multi-channel configuration: up to 4 dissolved oxygen sensors can be connected, saving cost for the customer.

4. High precision and high sensitivity: detection limit 0.001 μg/L, resolution 0.001 μg/L.

5. Fast response and measurement: generally only 3 minutes from air-saturated oxygen concentration to the μg/L level.

6. Long-life electrode: the long electrode service life reduces the cost of frequent electrode replacement.

7. Long maintenance interval and low-cost consumables: normal operation requires electrode maintenance only every 6–8 months.

8. Large-capacity data storage: 1.5 million data records with historical curve query.

IV. Technical Parameters

Parameter	RY500	RY500M	RY500L
Measuring range	0.01 μg/L–20 mg/L	0.1 μg/L–20 mg/L	1 μg/L–20 mg/L
Resolution	0.01 μg/L	0.1 μg/L	1 μg/L
Accuracy	±1 % FS or ±0.5 μg/L (whichever is greater)	±1.5 % FS or ±1.0 μg/L (whichever is greater)	±2 % FS or ±2 μg/L (whichever is greater)
Response time	T90 < 20 s	T90 < 30 s	T90 < 30 s
Display	800 × 480 colour touch screen, Chinese menu (manual switch to English)
Channels	Up to 4 dissolved oxygen sensors
Sample temperature	0–50 °C; resolution 0.1 °C / 0.01 °C
Sample flow rate	100–400 mL/min
Electrode service life	More than 5 years (depending on the sample)
Operating environment	Temperature 0–50 °C; relative humidity ≤ 90 %
Current output	0/4–20 mA (two isolated outputs)
Current output accuracy	±0.01 mA
Maximum load resistance	800 Ω (20 mA max.)
Alarm output	Two alarm outputs
Power supply	AC 220 V; DC 24 V
Data storage	1.5 million data records
Communication	RS485
Weight	800 g
Installation	Panel cut-out / wall mounting / pipe mounting
Cut-out size	138 × 138 mm

Model HD-RY500M corresponds to the RY500M column above; the other columns are listed for model comparison.

The video is currently in production, please stay tuned......

High-precision Online Dissolved Oxygen Analyzer

I. Measuring Principle

II. Applications

III. Features and Advantages

IV. Technical Parameters

Shandong Horde Electronic Technology Co., Ltd.

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