Related Manuals for NEVADANANO MPS
Summary of Contents for NEVADANANO MPS
- Page 1 MOLECULAR PROPERTY SPECTROMETER (MPS ) FLAMMABLE GAS SENSOR EVALUATION UNIT USER MANUAL NNTS Proprietary Information...
- Page 2 In the interest of continued product development, NevadaNano reserves the right to make improvements in this document and make the products it describes at any time, without notices or obligation.
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Page 3: Table Of Contents
Table of Contents System Overview and Setup ........................3 Kit Contents ..........................3 Gas Testing Setup ........................4 System Setup ..........................5 System Operation ........................7 Data Collection & Analysis ......................... 10 Test Notes ........................... 11 Saving Data ..........................12 General Guidelines ............................ -
Page 4: System Overview And Setup
Figure 1 – (a) MPS s7 Flammable Gas Sensor, housing, and gas delivery mask. (b) Sensor bottom-side detail. Kit Contents The complete MPS™... -
Page 5: Gas Testing Setup
MPS outputs. (This of course excludes changes due to the presence of flammable gas.) An example of an inadvisable change (shown in Fig. 2c, d) would be alternating between ambient air (which contains argon, carbon dioxide and other trace gases) and flammable gas + synthetic "zero air"... -
Page 6: System Setup
The MPS Sensor Interface and accompanying drivers are available at: https://www.nevadanano.com/MPS-Flammable-Gas-Sensor-Support The user should first install the FTDI Driver, followed by a system restart, and then install the MPS Sensor Interface UI. The setup procedure follows: 1. It is recommended to always power the computer connected to the MPS since the sensor receives its power from the computer. - Page 7 7. Open the MPS Sensor Interface application from the desktop icon. 8. Click the “Find MPS Devices” button and select the MPS Flammable Gas Sensor connected to the computer (Fig. 4). The sensor name is found on the sensor serial number in the form: B12318003.
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Page 8: System Operation
An additional zero-air gas cylinder should be applied to the sensor when analyte gas is not flowed. Inlet Outlet 70-series Fixed Flow Regulator MPS Sensor Interface Software Test gas cylinder Exhaust Nafion tubing tubing Figure 5 –... - Page 9 1. After performing system setup (1.3), the start button will now be enabled (highlighted in green in Fig. 6). Start the flow of zero-air baseline gas over the MPS and wait ~1 minute before proceeding for baseline gas to replace ambient air. Click Start to begin the initial baseline acquisition.
- Page 10 1.4.2 System Shutdown The MPS™ Flammables sensor must be in an idle state before shutdown. Pause the current test and wait for the system status dialogue to display “Idle”, then save or clear the data. The USB cable can now be disconnected.
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Page 11: Data Collection & Analysis
During a test, the system generates a new data point every 2 seconds. Data can be visualized on the MPS Sensor Interface in real time throughout a test. Graphs can be resized and zoomed in and out while data are being collected. An example screenshot is shown in Fig. 8. Graphs can be reset to auto-scale by double clicking on the desired axis. -
Page 12: Test Notes
Test Notes The user must enter test notes by clicking the “Edit Test Notes” button any time prior to saving data. A set of example test notes is shown below. Figure 9 – Example test notes dialogue box. After entering the experimental test notes, click “Save Data”. A dialogue box will appear to prompt the user to select a directory for saved test data. -
Page 13: Saving Data
Saving Data Throughout a test, data are stored in a temporary directory. Once a test is complete, data can be saved to a drive location specified by the user. The folder created in this step is named using the following format. Year_Month_Day-Time SensorName_testName Here is an example:... -
Page 14: General Guidelines
General Guidelines Follow all applicable lab safety procedures. Using gas source concentrations below 100%LEL (50%LEL is common) will ensure that flammable conditions are not created in the test setup. Lecture bottles with gas concentrations near 50%LEL are commonly used for calibration of gas detection instruments in the field, and do not create unsafe (flammable) or unhealthy (toxic) gas conditions because the gases dilute quickly to safe concentrations when released into ambient air at 300 mL/min. - Page 15 Nevada Nanotech Systems Inc. 1395 Greg Street, Suite 102 Sparks, Nevada 89431 United States Tel: 1-775-972-8943 Fax: 1-775-972-8078 info@nevadanano.com www.nevadanano.com SM-UM-0001-02...
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