downloadable user manual
Contents
1. and examine your data The HOBOware Pro manual can help you with this If you have more questions about the DM1 and its use with the U12 012 please call the Infiltec factory at 540 943 2776 Pressure Range amp Resolution The U12 012 data logger records 12 bits 4096 steps over the DM1 calibrated range of 3 0 to 2 2 WC 750 to 548 Pascal for a resolution of about 0 0017 WC 0 4 Pascal Note that the pressure sensor error may exceed 1 outside the 3 0 to 2 2 WC 750 to 548 Pascal limits but the logger will record data without an error indication There is some jitter in the Onset data logger and that can be reduced by averaging longer than the Onset minimum of 1 second Pressure Accuracy Infiltec presets the U12 012 amp DM1 par to a zero data logger pressure reading to within the data logger resolution of 0 0017 WC 0 4 Pascal at a temperature of about 70 F 20 C and Infiltec adjusts the data logger voltage channel scale to within a error 1 of the pressure reading or 1 resolution unit whichever is greater over the DM1 calibrated pressure range The data logger has a jitter of about 1 resolution unit at a sampling rate of 1 second but time averages longer than 1 second will reduce this error Temperature changes will cause the pressure zero to drift and this offset will be most noticeable in the error at low pressures WWW INFILTEC COM 2 Phone 540 943 2776 Infiltec DM1 Onset Data Logging Manual Ver2. inches WC 5 Logger s Battery voltage 2 95 y 6 Dew Point Requires Temp and RH 31 795 F wy lt gt WWW INFILTEC COM 4 Phone 540 943 2776
3. Infiltec DM1 Onset Data Logging Manual Version 1 0 User Manual for DM1 Micromanometer Analog Data Logging With Onset U12 012 Data Loggers The Infiltec Model DM1 micromanometer has an optional analog voltage output that can be recorded by Onset data loggers with voltage inputs Figure 1 shows a DM1 with the optional voltage output jack analog data cable and Onset U12 012 data logger Figure 2 shows a plot of data logging with this system in a building including inside temperature inside humidity inside light level and inside outside pressure during a windy period Figure 1 DM1 micro manomter Analog Data Cable Onset U12 012 14 Pressure connect tubing Figure 2 Example Data Logger Plot from HOBOware Software including temperature humidity light amp pressure HOBOware Pro File Device Edit Yiew Window Help ASHEGSE oOHSFS Rs 0704 QQ HWW E es 1285152_6 hobo Time GMT 04 00 Temp F RH Intensity lum ft DM1 842803 Pressure inches WC End Of File 1 03 26 08 04 53 00 PM 72 696 24 344 4 8 0 00256 a 2 03 26 08 04 53 05 PM 72 653 24 342 3 3 0 00086 mm 3 03 26 08 04 53 10 PM 72 696 25 641 2 6 0 00086 4 03 26 08 04 53 15 PM 72 696 25 426 16 5 0 00086 5 03 26 08 04 53 20 PM 72 739 25 211 58 2 0 00256 6 03 26 08 04 53 25 PM 72 739 25 499 250 9 0 00256 v Show All 1285152 Details Hee Series Temp F Hoe Series RH o Hn Series Intensity lum Ft ite Series DM1 842803 Pressure inch H
4. aled Logging Interval Units y aches WC Logging Duration Value 1 0 0000 4 3 48000 ing interval it does not byents Launch Options Trigger Push Logger Button for 3 Seconds WWW INFILTEC COM 3 Phone 540 943 2776 Infiltec DM1 Onset Data Logging Manual Version 1 0 Zero Setup Infiltec zeroes each Onset U12 012 data logger with an Infiltec DM1 micro manometer and Figure 4 shows a zero pressure of 0 00086 inches of water column when both DM1 ports were open Note that the resolution of the Onset 12 bit ADC is about 7 4096 0 0017 inches WC Temperature changes will cause some zero drift so install the DM1 in a location with the most stable temperature Figure 4 Example of Zero Adjust Screen in HOBOware Pro Software Status Device Identification Device Details Battery Level gj 83 E M Used NNNOONNAAN F Device HOBO U12 012 Temp RH Light Ext Soe T E reat Comets Current Status Launched Logging Corporation Last Launched 03 26 08 01 07 42 PM GMT 04 00 Description 1285152 Deployment Number 26 Serial Number 1285152 Logging Interval Oh Om 1s Firmware Version 1 0 4 Current States Button Up rCurrent Readings tag l Screen Refresh Interval R sec Number Measurement alue Units cs 1 Temperature 10K Thermistor 70 803 oF 2 Relative Humidity Requires Temp Channel 1 23 548 Yo 3 Light Intensity 26 0 lurn FE2 4 Pressure Difference 0 00086
5. e DM1 are both open and there is no wind blowing on them You can put a fingertip on one of the brass ports to generate some pressure Press OK to go back to the Launch screen After you have made your final selection of sensors to record and logging interval press the Launch button to start data logging The USB cable can now be removed from the data logger until it is time to read the data out The DM1 differential pressure sensor is generally connected to the location you want to monitor the pressure by Ys tubing connected to the right hand signal port side brass port The left hand reference port side brass port is often left open Pressure measurements across a floor or wall are often made by drilling a 1 2 hole inserting the 1 2 tubing and sealing around the hole with a caulk or putty like Mooretite brand rope caulk sold in hardware stores Note that higher pressures at the end of the signal port tubing relative to the pressure at the reference port will generate a positive pressure value To read out the data logger connect the USB cable to the computer and the U12 012 and start HOBOware Pro Press the second button from the top left of the screen Readout Data and then click Stop to stop the logger Then save your data and a Plot Data screen will appear If you press the Plot button a graph of your data will appear There are many interactive changes you can make to change the graph
6. e Event Type End Of File Intensity lum ft DM1 842803 Pressure inches WC X End OF File Inside Temperature DM seyput side Light Intensity Sal osu Ht 5 00 90 P 0 00 PM 10 00 90 PM gt 03 26 08 10 00 00 PM GMT 04 00 Ready Dev HOBO U12 012 Temp RH Light Ext S N 1285152 1 device connected Equipment Required Infiltec DM1 micro manometer with analog output option analog cable Onset U12 012 data logger HOBOware Pro software and USB cable Getting Started 1 Install HOBOware Pro software WWW INFILTEC COM 1 Phone 540 943 2776 Infiltec DM1 Onset Data Logging Manual Version 1 0 P 10 11 12 13 14 15 16 17 Install latest online updates to HOBOware Pro software Connect USB cable to your computer and to the U12 012 data logger Start HOBOware Pro software it should recognize your U12 012 data logger with message 1 device connected at lower right of screen Plug data cable into DM1 micro manometer and U12 012 data logger Turn DM1 on and make sure its 9 volt battery voltage is between 8 10 volts if you plan on extended data logging Note that the DM1 can operate at battery voltages down to about 5 5 volts Note that the DM1 keypad settings for pressure Units Time Averaging and Zero do not affect the data logging since the data logger is connected directly to the analog sensor output and not to the DM1 digital output where the keys contr
7. ol the display Launch the data logger by clicking on the top left HOBOware Pro software screen button Launch Device You will see a Launch Logger screen that will allow you to select which sensors will be recorded and what time averaging will be used Note that the more sensors you record and the shorter the logging Interval the shorter the Logging Duration until the logger memory fills up If you save all the sensors by checking their boxes and select the shortest logging interval of 1 second the duration is only 2 hours and 35 minutes Sensor 4 should read CABLE 2 5 STEREO Voltage Input and that 1s connected to the DM1 pressure sensor voltage Press the Scaling button to see how the DM1 pressure sensor voltage is converted to pressure units These calibration values are different for each units inches of water column or Pascals and they are different for each DM 1 and U12 012 pair The Infiltec values for these calibration values are printed on a small label on the back of the U12 012 You can re enter them if the U12 012 memory becomes corrupted Press OK to close the Linear Scaling window You can also change the units name that is displayed on the graph To run the logger without recording data press the Status button on the Launch Logger screen You will see the data coming from all the sensors you have checked The DM1 pressure should read close to zero if the two brass ports of th
8. sion 1 0 Zero Pressure data logger zero pressure depends on offsets in each DM1 and U12 012 so each pair of devices has been zeroed by Infiltec and no further adjustment is recommended Note that the DM1 keypad keys for zero units and time averaging do not have any effect on the U12 012 data logging because the U12 012 is connected to the analog DM 1 circuit and not to the digital DM1 circuit The data logger zero is will drift with changes in temperature and it is recommended that the DM1 be placed in a location where there are minimum temperature changes during data logging Scaling Setup Infiltec calibrates each Onset U12 012 logger with an Infiltec DM1 micro manometer for logging the voltage sensor in units of inches of water column WC or Pascals Figure 3 shows Onset HOBOware Pro software screen with an example of a scaling factor used to change the Onset voltage scaling to DM1 pressure scaling in inches of water column WC Note that the scaling coefficients depend on the units and particular DM1 and Onset U12 012 The Onset logger stores this scaling in memory unless its memory is corrupted Figure 3 Example Scaling Setup Screen in HOBOware Pro Software Launch Logger Logger Type HOBO U12 012 Temp RH Light Ext Serial Number 1285152 Deployment Number Battery Level _ Description Channels to Log utilities a l k Scaling Scale Channel Scaled Channel Name Pressure Difference Parameters Raw Sc
Download Pdf Manuals
Related Search