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LED&Semiconductor Industry
Model AMT Dewpoint Transmitter from Alpha Moisture Systems embodies over 30 years of dedication to moisture measurement excellence, delighting our customers in almost every country. AMT transmitter with range -120ºC, is designed to reliably measure moisture in ultra high-purity gases used for semiconductor, LED and pure gas production industry.
At the heart of the AMT Dewpoint Transmitter is our ultra-high capacitance aluminium oxide sensor, which delivers unsurpassed sensitivity, speed of response, accuracy, repeatability, stability, and long service life. Every unit is supplied with a Calibration Certificate traceable to International Humidity Standards, guaranteeing accuracy to ± 2 ºC dew point.
The transmitter is extremely easy to install and operate, requiring little or no maintenance; and high efficiency. Many industries such as LG, Samsung, TSMC, or high-purity gas suppliers Air Liquide, Nippon Gas, etc are sustain users for the product.
Advantages
• Ultra-high capacitance aluminium oxide sensor delivers unsurpassed sensitivity, speed of response, accuracy, repeatability, stability, and long service life
• Compact 2-Wire 4-20 mA Loop Powered Dewpoint Transmitter
• Various dewpoint ranges available from -120 °C to 20 °C
• Accuracy ±2 °C dewpoint
• Unique AutoCal span correction feature allows the user to conduct field calibrations and span checks to ensure optimum accuracy between laboratory calibrations.
• IP66 / NEMA 4 Weatherproof Protection
• Optional Sensor Holder/Sample Cell for optimum sampling conditions
• Supplied with a calibration certificate traceable to National and International Humidity standards
ALPHA-AMT-BBT-120-GP/IS
Sensing element | Ultra-high capacitance aluminium oxide sensor |
Feature | AUTO CAL FEATURE (field calibration / span check) Fast Response - Stable - Reliable - Accurate - Easy to Install. |
Range | -120 to-20°C Dewpoint (Also provide -110°C, -100°C etc) |
Significant distances | 1000m |
Accuracy | Better than ±2°C dewpoint |
Moisture unit | 4 to 20ma linear output: dewpoint, ppm(v), ppb(v) |
Sensitivity | Fast Response Time. The Ultra High Capacitance sensing element is long lasting and offers excellent sensitivity, repeatability, and response speed. |
Stability | Reliable, stable and drift free sensor especially for very dry applications below -90°C dewpoint. |
Repeatability | Better than ±0.3°C dewpoint |

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