Online Trace Dissolved Oxygen Monitor

Model：

HD-RY500L

Introduction：

Online Trace Dissolved Oxygen Meter 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-RY500L corresponds to the RY500L column above; the other columns are listed for model comparison.

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

Online Trace Dissolved Oxygen Monitor

I. Measuring Principle

II. Applications

III. Features and Advantages

IV. Technical Parameters

Shandong Horde Electronic Technology Co., Ltd.

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