Item # QMA2030, QMA2030 Process Moisture Analyzers on Michell Instruments, Inc.
Michell Instruments, Inc. - Item # QMA2030, QMA2030 Process Moisture Analyzers
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Item # QMA2030
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QMA2030 Process Moisture Analyzers
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The QMA2030 Process Moisture Analyzer is designed to provide a reliable, fast and accurate measurement of trace levels of moisture content (ppb
V
and ppm
V
) in a wide variety of industrial applications where the direct measurement of true concentration of water molecules is of concern. The applied quartz crystal microbalance technology can directly measure the volume concentration of water as an impurity in a process gas.
For self-verification and diagnostics the analyzer incorporates automatic calibration using an internal reference source. The intuitive touch screen control panel provides easy operation. In addition, live measurement data and system information is always on view and the analyzer also has a data logging facility that allows trend data to be downloaded to an external USB storage device for analysis. On-screen alarms can be set at user defined levels. Alarm contacts, and a 4-20mA analogue output are provided for connection to external monitoring.
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Performance
·
Electrical Input/Output
·
Operating Conditions
·
Mechanical Specification
Performance
Measurement Technology
Quartz Crystal Microbalance
Range
0.1 to 2000 ppm
v
. Calibrated range 0.5 to 500ppm
v
with trend indication above and below calibration range
Accuracy
±5% for 0.5 to 500 ppm
v
or 0.1 ppm
v
whichever is greater
Repeatability
±5% of the reading from 0.5 to 1000ppm
v
Sensitivity
0.1 ppm
v
or 1% of the reading, whichever is the greater
Response Time
<2 minutes for 63% response to a step change in either direction
<5 minutes for 95% response to a step change in either direction
Automatic Calibration
Internal moisture generator source calibrated traceable to NIST
Electrical Input/Output
Analog Outputs
4-20 mA for moisture (max load 500Ω) User-configurable range
Analog Output Resolution
16 bit
Supply Voltage
110 V (90 to 115) or 240 V (220 to 245) switch selectable, 50-60 Hz
Alarms
3 Alarms: Volt free contact, rating 3A@250 VAC
Operating Conditions
Inlet Pressure
15 psig (Adjusted to achieve the correct exhaust flow, up to 1500 psig with optional pressure regulator)
Outlet Pressure
Atmospheric
Sample Flow Requirement
3.6 in³/hr
300 mL/min
Sample Gas Temperature
0 to 100 ºC
32 to 212 ºF
Operating Environment
15ºC to 40ºC / 59ºF to 104ºF , 90% RH max
Mechanical Specification
Display
8.4 inch LCD touch-screen
Dimensions (W X H X D)
18.5 inches x 8.4 inches x 15.7 inches - allow extra 7.5 inches for clearance at back (w x h x d)
470 mm x 214 mm x 400 mm - allow extra 200mm for clearance at back (w x h x d)
Net Weight
33 lb
15 kg
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Dew-Point, Humidity, Oxygen
