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Bộ chuyển hóa độ ẩm điểm sương GE VeriDri 4XIP67
(Moisture Tansmitter NEMA 4X/IP67 4-20mA -110°C～20°C)
VeriDri is a dew point temperature or PPMv moisture loop-powered transmitter intended for OEM applications such as:
- Desiccant regenerative air or gas dryers
- Drying application for plastics prior to injection/ blow molding
- Dryers for medical air
- Glove boxes
- Thin-film aluminum oxide moisture sensor technology
- Microprocessor-based, all-digital technology for reliable operation
- Compact Size
- NEMA 4X/IP67
- Loop-powered 4-20mA output
- From -11oC to +40oC dew point temperature/ 0 to 10,000 PPMv moisture (with constant pressure) overall range capability
For OEM Applications
The GE VeriDri moisture transmitter provides dryer manufacturers and other OEMs with the means to make simple, accurate and reliable moisture measurement of their gas at a low price.
VeriDri is a loop-powered transmitter with a range proportional to 4 to 20 mA. It is offered in a number of factory-configured output ranges cov- ering the overall moisture range of -110° to +40°C dew point temperature. It can also cover a number of PPMv moisture output ranges from the over- all range of 0 to 10,000 PPMv moisture if it is intended to be operated at a constant pressure. This information must be provided to the factory at the time of order placement.
Improve Product Efficiency and Performance
VeriDri can be used to significantly improve the energy and efficiency of regenerative gas dryer systems. By monitoring the dryer outlet moisture content, desiccant bed regeneration can be initiated on demand, rather than on a timed cycle. This process has been adopted by many major dryer manufacturers, and has resulted in improved performance and signifi- cant savings in energy costs. In addition, VeriDri can be used to moni- tor overall dryer operations, determine regular maintenance inter- vals and detect faulty operation.
Advanced Moisture Sensor Technology
The VeriDri combines a technological- ly advanced aluminum oxide moisture sensor with state-of-the-art software and electronics for unequaled overall performance.
Superior sensitivity, speed of response, calibration stability, and wide dynamic range have made GE aluminum oxide moisture probes the standard of per- formance and value in industrial moisture measurement. They are suit- able for laboratory and industrial moisture measurement applications in gases and non-aqueous liquids over a wide range of process conditions.
All moisture probe calibrations are traceable to the National Institute of Standards and Technology (NIST).
Installation Flexibility for OEM Applications
The rugged, compact VeriDri trans- mitter is designed specifically for OEM installations where space is at a premi- um. It can be installed directly in the process stream or, if necessary, in a sample system. If required, GE can design and build a sample condition- ing system to meet the unique application demands.
The VeriDri transmitter is available with OEM pricing for a minimum quantity of 10 units. Discounts on larger quantities are also available, and blanket orders are accepted.
–110° to 20°C
–110° to –50°C
–80° to 20°C
–80° to –30°C
–30° to 20°C
–60° to 40°C
–150° to 70°F
–150° to –40°F
–40° to 70°F
–100° to 0°F
–50° to 50°F
0° to 100°F
+ 0 to 10 PPMv
+ 0 to 100 PPMv
+ 0 to 1,000 PPMv
+ 0 to 10,000 PPMv
PPMv ranges based on constant pressure, provided at time of order placement.
–40° to 60°C (–40° to 140°F)
70°C (158°F maximum)
Meets specified accuracy in three minutes
±2°C from –65° to 40°C dew/frost point
±3°C from –80° to –66°C dew/frost point
±0.5°C from –65° to 40°C dew/frost point
±1.0°C from –80° to –66°C frost point
Less than five seconds for 63% of a step change in moisture content in either wet-up or dry-down cycle
• 7 to 28 VDC (loop-powered, cus- tomer supplied)
4 to 20 mA
Max Loop R = 50x(PSV-7) ohms (Where: PSV = Power Supply Voltage)
Given a 24 VDC Power Supply, Max Loop R = 50 x (24 - 7)
= 850 W
2 m., standard (consult factory for custom lengths)
3/4-in. 16 straight male thread with O-ring
5 µ Hg to 5,000 psig (345 bar)
Overall: 6.76 ´ 1.13 in. diameter
Electronics with cable: 4.08 ´ 1.13 in. diameter
Weight: 5 oz. (140 grams)
Complies with EMC Directive 89/336/ EEC and PED 97/23/EC for DN< 25
Thin-film aluminum oxide moisture sensor probe
Each sensor is individually computer calibrated against known moisture concentrations, traceable to NIST
Sensor recalibration at GE Infrastructure Sensing is recommended every six to 12 months depending on application
Gases: Static to 10,000- cm/s linear velocity at 1 atm
Liquids: Static to 10- cm/s linear velocity at density of 1 g/cc