Refine On (Hebei) Electric Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of sf6 dew point meter in China. If you're going to wholesale durable sf6 dew point meter, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
The NRYH200 sf6 dew point meter is portable. You turn it on, connect the gas line, and set flow to 0.5–0.6 L/min. The first six minutes are automatic calibration-after that, readings are stable. A color touchscreen shows real-time dew point, PPMv, flow, ambient temperature, and humidity. Data can be printed on the built-in thermal printer or saved to a USB drive as a CSV file.
There is no need for an external PC during testing. Wireless and RS232 options are available for post-test data transfer.
Technical Specifications
|
Parameter |
Value |
|
Dew point range (atmospheric) |
-80 °C to +20 °C |
|
Dew point accuracy |
±0.5 °C |
|
Temperature accuracy |
±0.1 °C |
|
Humidity accuracy |
±1.5 % |
|
Response time (-60 °C → -20 °C) |
5 s (63%), 15 s (90%) |
|
Response time (-20 °C → -60 °C) |
45 s (63%), 600 s (90%) |
|
Display |
Dew point, PPMv, flow rate, ambient °C, ambient %RH |
|
Gas connection |
Self-locking quick coupling |
|
Power consumption |
≤10 W |
|
Power source |
Rechargeable Li-ion battery, >15 h |
|
Fitting material |
Stainless steel |
|
Compatible gases |
Air, N₂, SF₆ |
|
Operating temperature |
+10 °C to +40 °C |
|
Operating humidity |
≤75 % RH |
|
Recommended flow rate |
0.5–0.6 L/min |
Features
- ±0.5 °C dew point accuracy is sufficient for both commissioning and in-service checks per DL/T 941 (e.g., new SF6 ≤ -49.7 °C, in-service switchgear ≤ -35 °C).
- 5-second response (63%) from low to moderate moisture levels means you are not waiting minutes for a reading in the field.
- >15 hours battery life covers a full workday without needing a vehicle or generator for charging.
- 1,000-record internal storage with USB export to CSV eliminates manual transcription errors.
- Stainless steel gas fittings resist corrosion when testing SF6 that may contain decomposition byproducts.
Applications
• SF6 circuit breakers and gas-insulated switchgear (GIS)
• Transformer insulation monitoring (moisture in SF6-filled compartments)
• Pre-delivery and post-maintenance quality control for SF6 gas
• Utility field services and laboratory gas analysis
Related Products
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Frequently Asked Questions
Q1: What dew point range can the NRYH200 sf6 dew point meter measure?
A: Atmospheric dew point from -80 °C to +20 °C. This covers new SF6 gas requirements (-49.7 °C) and in-service limits (-35 °C or -30 °C depending on equipment type).
Q2: How long does the battery last on a full charge?
A: More than 15 hours of continuous operation. One charge typically covers a full day of field testing.
Q3: Does the instrument require warm-up before giving accurate readings?
A: Yes. The NRYH200 runs an automatic calibration cycle during the first six minutes after power-on. Reliable dew point readings are available after this period.
Q4: What gases can be tested?
A: Air, nitrogen (N₂), and sulfur hexafluoride (SF₆). The instrument is not intended for corrosive or toxic gas mixtures.
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