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HygroTrace Ultra-Low Moisture Transmitter

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HygroTrace Ultra-Low Moisture Transmitter measures the moisture content in the parts per billion (PPBv) range in nitrogen and argon gas for applications such as cylinder and tank filling, gas distribution systems in fabrication systems, and tool and machine manufacturing in the semiconductor and ultra-high purity gas (UHP) markets. With over 70 years of experience with aluminium oxide moisture sensors, GE Sensing developed a new aluminium oxide sensor, manufactured with modern semiconductor techniques, which uses a newly patented measurement technique to provide the sensitivity and speed of response in the PPBv range matched only by traditionally expensive analyzers. It is now possible to monitor multiple points of measurements for less than the cost of one analyzer and without installation constrictions. Its unique and innovative sensor measurement technique responds to wet up and dry down conditions in minutes minimizing moisture intrusion in your process.

HygroTrace Transmitter features an integral backlit display and keypad electronics package mounted on a “flow-through” tee sample cell that can be installed directly into the process stream or on a bypass leg of a gas distribution network. HygroTrace measures from 0 to 100 PPBv moisture in nitrogen or argon gas with trending analysis beyond the calibrated range. The accuracy of the measurement is ± 20% of reading or ± 5 PPBv, whichever is greater. HygroTrace offers unprecedented speed of response for aluminum oxide sensors in this very low range with a response time of less than 20 minutes to 95% of a 25 PPBv step change. HygroTrace features analog (4-20mA) and digital (RS485) outputs. HygroTrace’s compact VCR sample tee is designed for installation where space is limited and requires no custom machining.


Features

  • Rapid speed of response to both wet up and dry down conditions comparable to high-end analyzers
  • Highly accurate moisture measurement from 0 to 100 PPBv
  • Innovative measurement technique using newly patented aluminum oxide sensor technology
  • Simplified, compact "flow-through" tee sample cell design
  • Stainless steel VCR fittings
  • CE and UL508 Certification
  • Integrated display/user interface
  • Analog and digital outputs for full integration
  • Compatible with PanaViewTM Interface Software

 

Applications


HygroTrace uses a newly patented technique to provide accurate and reliable measurement at trace moisture levels. Combining over 70 years of experience in aluminum oxide sensor technologies by Panametrics and General Eastern, this robust sensor provides the sensitivity and speed of response in the ppbv range matched only by traditionally expensive analyzers.
• Ultra high purity (UHP) nitrogen and argon
• Cylinder, tank and truck filling applications
• Gas distribution systems in semiconductor fabrication facilities
• Tool and machine manufacturers

Specifications

Measurement Range

0 to 100 ppbv with trend indication beyond the
calibrated range

Compatible Gases

Nitrogen and argon

Process Gas Temperature Range

14ºF to 95ºF (-10ºC to 35ºC)

Storage Temperature

-40ºF to 158ºF (-40ºC to 70ºC)

Warm-Up Time

Meets specified accuracy within 24 hours, after sensor
exposure <72 hours @ 25ºC and 60% RH

Calibrated Accuracy @ 77ºF (25ºC)

±20% of reading or ±5 ppbv, whichever is greater

Response Time

Less than 20 minutes for 95% of 25 ppbv step change

Electrical

Power

20 to 28 VDC, 20 watts
Output: 4 to 20 mA analog, RS485 digital
Output Resolution: 14 bits

Display

128 X 64 LED backlit LCD
Display one measurement parameter and diagnostics

Mechanical

Sample Connection

In-line flow, ¼ inch (6.35mm) VCR process connection

Sample Flow Rate

1 to 4.3 SCFH (0.5 to 2 SLM)

Operating Pressure

0 to 100 psig (0 to 6,9 bar)

Proof Pressure

3000 psig (207 bar)

Enclosure

Aluminum construction; black color; powder coated finish

Dimensions: (h x w x d)

Overall: 7.3 in x 4.6 in x 2.5 in
(185 mm x 117 mm x 63.5 mm)
Weight: 2.5 lbs (1.13 g)

Certifications

Complies with EMC Directive 89/336/EEC and
PED 97/23/EC for DN < 25
UL 508
  • UL508 Certification
  • Complies with EMC Directive 89/336/EEC and PED97/23/EC for DN<25
  • ¼" VCR process connections

 

Download


Descriptions English
HygroTrace User's Guide acrobat-reader
Basic Hygrometry Principles acrobat-reader
HygroTrace acrobat-reader


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