The next generation Advanced Quartz Crystal Microbalance analyzer from Michell Instruments is designed to provide reliable, fast and accurate measurement of trace moisture content in a variety of applications where keeping moisture to a minimum is of critical importance.
The analyzer provides consistently accurate measurements of trace moisture. This consistency is achieved using a self-calibration system, which adjusts the sensor with reference to an internal moisture generator. The moisture generator is supplied with a calibration traceable to NPL and NIST, so long term stability of its measurements is guaranteed.
Precision measurement from 0.1 to 2000ppmV
Simple, low cost, on-site maintenance
Accuracy of 0.1ppmV or 10% of reading, whichever is greater
Reliable measurement even in varying sample conditions — analyzer corrects automatically for flow variations
Unaffected by changes in background gas composition
Long intervals between maintenance
Dryer can be replaced by the user in 10 minutes
Intuitive user interface
Ethernet or USB digital communications
SD card datalogging
Optional internal sample handling and bypass loop
Fast Response Quartz Crystal Microbalance
0.1 to 2000ppmV
±10% of reading from 1 to 2000 ppmV 0.1 ppmV between 0.1 and 1 ppmV
±5% of reading from 1 to 2000ppmV ±0.1ppmV between 0.1 and 1ppmV
ppmV, ppmW, mg/nm3, vapor pressure (Pa), frost point (°C), lb/MMscf
T63 <2 mins to step change in either direction T95 <5 mins to step change in either direction
0.1ppmV or 1% of reading, whichever is greater
Internal moisture generator source calibrated traceable to NPL and NIST
7” color LCD with touch screen
2 channels: user selectable 4–20 mA or 1 to 5 V
USB and Modbus TCP over Ethernet
Direct logging to SD card or PC via application software
1 x System alarm, volt-free change-over (FORM C) 1 x Flow alarm, volt-free change-over (FORM C) settable high or low
2 x Level alarm, for ppmV or DP, settable to be active high or low
85 to 264 V AC, 47/63Hz
User-controlled to 1 barg With optional inlet pressure regulator: 300 barg max
Sample flow requirement
300ml/min total flow @ atmospheric pressure
Sample gas temperature
0 to +100°C
+5 to +45°C up to 90% RH
19” x 4U x 434mm Housing
1/4” VCR Swagelok®
QMA601 The next generation Advanced Quartz Crystal Microbalance analyzer from Michell Instruments is designed to provide reliable, fast and accurate measurement of trace moisture content in a variety of applications where keeping moisture to a minimum is of critical importance.
Chilled Mirror Reference Instruments
S8000 RS Our flagship chilled mirror hygrometer, capable of measuring as low as -90°C dew point in a compact, lightweight package. The sensor head is optimised for fast response to low moisture levels and features the RRS system for high
sensitivity and a dew-point accuracy of ±0.1°C.
S4000 TRS The S4000 TRS is designed for very dry dew point measurements to -100°C (-148°F) with ±0.1°C accuracy. It features excellent stability and reproducibility across its entire measurement range, and is used in calibration and standards laboratories worldwide.