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Differential pressure measurement is a crucial parameter for determining pollutant pathways for IAQ and worker exposure applications. It is also a key HVAC parameter in commercial and institutional buildings and in manufacturing plants, among many other important applications.
Each Zephyr II instrument includes a built-in, auto-zeroing, micro-manometer and 'K'-type thermocouple input for measuring differential pressure, static pressure and temperature. The auto-zeroing feature allows for highly accurate differential pressure logging over time. With a pitot tube, the Zephyr provides direct air velocity readings. Zephyrs can also be fitted with a telescoping 3-function probe (model 2300 AHTS) to measure humidity, temperature and (hotwire) airspeed.
The Zephyr II range has been designed with the user in mind. The large rubber grip and simple membrane switch pad ensure the unit is comfortable to use allowing pushbutton operation even with gloves on. The 2300 AHTS probe attaches to the side of the instrument for single-handed operation.
The display and menu system provide step-by-step guides for each operation. This ensures minimal user training is required. Data capture is included as standard to allow duct traversing. Volumetric flow is calculated by simply entering the size of the duct and the instrument performs the necessary calculation.
The Zephyr II is a stand-alone instrument. However, with all of it's available parameters, it may be interfaced to any GrayWolf WolfSense PPC or LAP mobile PC based system via a CF serial card (model ACC-SCDPC); opening the door to the full extent of GrayWolf's DirectSense product features.
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Digital Pressure Controller/Calibrator - Model 7250
The Model 7250 Digital Pressure calibrator is available in a variety of pressure ranges from 0-5 psi to 0-3000 psi, and is an economical alternative to the Model 7250xi and 7250i. The Model 7250 provides 0.003% of full scale precision and can control to the set point in 15 seconds with no overshoot. When a higher level of performance is required, please refer to the 7250i and 7250xi Digital Pressure Controllers.
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200136 Seal-Leak Detection (SLD) Transducer
The 200136 SLD transducer incorporates highly reliable proximity probe technology observing a moving diaphragm to detect static pressure changes on the non-pressurized end of single or double seals or between tandem or dual seals. Changes in pressure indicate failing seals. The transducer is specifically designed for use with our 200135 TIM as part of a Trendmaster® Pro system for continuous monitoring of process pumps handling toxic or flammable materials in the chemical and hydrocarbon processing industries
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Delta P is an electro-pneumatic leak tester dedicated to perform pressure decay leak tests: it makes it possible to bench tests small or medium sized as well as rigid or plastic products.
Delta P may be also managed by a PLC or by a PC supervisory system make it easy to using it on automatic production lines in every industrial sector.
* Leak test up to 6 bar
* Pressure resolution 0.01 mbar (1 Pa)
* 16 programmable test parameters tables: each table includes all the parameters defining a test cycle so it is easy to make predefined test setting for different products.
* Selectable pressure measurement units.
* Selectable languages for display messages
* Print out of customized test report (with external RS-232 printer)
* RS422 serial line MODBUS protocol for PC supervisory system
* Opto-isolated interface with PLC
* An aided procedure making it possible to calibrate the pressure sensor.
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The most common use of ultrasonic noise detection is to locate leaks in pressurised systems. When air escapes through an orifice, the flow becomes turbulent. This vortex of air has an ultrasonic signature. This ultrasonic noise is characteristically identified as a "rushing" sound with very few discernable single audio tones. The Ultrasonic detector is specifically tuned to listen for this vortex tone.
Detection of leaks within high-pressure systems can be relatively simple. However, low-pressure systems require an addition technique. Very small leaks in fuel system "bag tanks" and welded seams etc can be too small to be detected using the ultrasonic vortex signature however, the leak can be amplified by adding a low viscosity liquid to the seam or joint. Small bubbles are generated at the location of the leak, these micro bubbles burst provoking ultrasonic emissions that are easily detected by the GE Druck AEROSPACE TOOL KIT.
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Conax Technologies high pressure RTD temperature sensors have proven their durability and reliability in a variety of high pressure and high temperature environments. Our extensive knowledge of the science of temperature measurement and the physical properties of materials, enables our engineers to recommend the most effective solutions for your application needs. Conax has in-house equipment to proof pressure test and certify units for these extreme applications.
High Pressure RTD, 3 Wire 100 Ohm Platinum:
*With integral high pressure welded threaded fitting
*Proof Pressure Tested to: 30,000 PSI @ 68°F (30°C)
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