MS-405SF6 Trace Moisture Tester 

The SF₆ micro-moisture tester has a testing range of -80℃ to +20℃, with an accuracy better than ±2℃ across the entire range. The annual drift is ≤1℃. The instrument features a beautiful and rational design and uses high-quality materials. The overall design is a modular system. The transportation and carrying solution is compatible with our company's full range of SF₆ gas analysis equipment. The product is suitable for use in any natural environment.

1. Measurement accuracy better than ±2℃.
2. All-channel polymer material design ensures no moisture condensation on the walls, guaranteeing testing speed.
3. Oil-free stainless steel regulating valve ensures the accuracy of detection values.
4. Advanced software algorithms improve the testing accuracy of imported sensors.
5. Modular chassis configuration allows users to easily combine related instruments and accessories.
6. Enables overall packaging and carrying, providing users with a more convenient experience.
7. Detection can be performed immediately upon power-on; no preheating or oscillation process is required.
8. Features temperature conversion and pressure data correction functions.
9. Fuzzy calculation technology simplifies the software calculation process, making test results faster and more reliable.
10. High-power lithium battery power system allows for both AC and DC power supply.
11. No AC power supply is required on-site. The lithium battery provides continuous operation for more than 8 hours without external power.
12. Anti-electromagnetic interference circuit design ensures product reliability.
13. Stable test data; provides both standard dew point values and converted dew point values under 20℃ conditions.
14. Optimal test flow rate range display allows users to intuitively and quickly adjust the gas flow rate, shortening testing time.
15. The inlet uses a miniature self-sealing connector design; the tested gas circuit will not leak when the gas path is disconnected.

1. Measurement Method: Capacitive/Resistive measurement (Vaisala DMT series sensor from Finland)
2. Ambient Temperature: -20℃ to +60℃
3. Measurement Range: -80℃ to +20℃
(When the dew point temperature is below 0℃, the sensor output is the frost point)
Response Time 63% [90%]
+20→-20℃ Td 5s [45s]
-20→-60℃ Td 10s [240s]
4. Measurement Error: Better than ±2℃ (When the dew point temperature is below 0℃, the sensor output is the frost point)
5. Repeatability Error: ±0.5℃ Resolution: 0.01℃
6. Display Units: ℃, ppm, ℃P20 (Dew point conversion value at 20℃ ambient temperature)
7. Gas Flow Rate: 400-600 ml/min
8. Flow Display: 0-1000 mL/min, imported digital flow meter
9. Sample Gas Pressure: ≤1MPa
10. Ambient Humidity: 90%RH
11. Influence on Measurement Value: No influence from pressure and flow rate
12. Operating Environment: Temperature: -35 to +60℃, Pressure: 0-20 bar, Sample gas flow rate: No influence
13. Other Configurations: Electronic mass flow meter