{"id":2334,"date":"2022-05-16T23:46:08","date_gmt":"2022-05-16T23:46:08","guid":{"rendered":"https:\/\/www.ssec.wisc.edu\/aeri\/?page_id=2334"},"modified":"2022-05-16T23:47:38","modified_gmt":"2022-05-16T23:47:38","slug":"aeri-resistance-validation-with-front-end-removal","status":"publish","type":"page","link":"https:\/\/www.ssec.wisc.edu\/aeri\/kb\/procedures\/calibration-verification\/aeri-resistance-validation-with-front-end-removal\/","title":{"rendered":"AERI Resistance Validation with Front-end Removal"},"content":{"rendered":"<h3>Equipment Required<\/h3>\n<ul>\n<li>Large phillips screwdriver<\/li>\n<li>Ball driver set<\/li>\n<li>Calibrated resistor kit (2 boxes)<\/li>\n<\/ul>\n<div style=\"background-color: #fcf8e3\">\n<h3>Precaution<\/h3>\n<ul>\n<li>The resistor boxes are sensitive to large&nbsp;changes in ambient temperature (e.g. heating from direct sunlight). &nbsp;It is best to conduct&nbsp;the test with the boxes in a sheltered, stable thermal environment. &nbsp;For best results, place the boxes in the location\/environment where the test will be conducted about an hour prior to the test.<\/li>\n<\/ul>\n<\/div>\n<h3>Procedure<\/h3>\n<h4>Hardware setup<\/h4>\n<ol>\n<li>Stop data collection and power OFF&nbsp;the instrument:\n<ol type=\"a\">\n<li>Press ctrl-c up to 3 times in the black Cygwin window to terminate ingest.<\/li>\n<li>Switch off the power bar in the AERI back-end.<\/li>\n<\/ol>\n<\/li>\n<li>Remove the front panel and the front-end enclosure from the AERI front-end. &nbsp;(See <a href=\"http:\/\/www.ssec.wisc.edu\/aeri\/kb\/procedures\/calibration-verification\/aeri-front-end-enclosure-removal-and-installation-procedure\/\">instructions here<\/a>.)<\/li>\n<li>Disconnect the ABB and HBB connectors at each blackbody<\/li>\n<li>Connect the ABB and HBB connectors to the respective ABB and HBB resistor boxes\n<ul>\n<li>Option 1: &nbsp;Hang the resistor boxes on the blackbody handles. &nbsp;Use when exterior temperatures are stable and moderate, and the resistor boxes are not in direct sunlight<\/li>\n<li>Option 2: &nbsp;Feed the ABB and HBB connectors back through the passthrough tubes to the back-end, and connect the resistor boxes inside where the temperature is stable<\/li>\n<\/ul>\n<\/li>\n<li>Power ON&nbsp;the instrument<\/li>\n<\/ol>\n<h4>Software setup<\/h4>\n<ol start=\"6\">\n<li>Ensure that instrument is in <kbd>RS_3<\/kbd> mode. &nbsp;The test will not work in <kbd>3body<\/kbd> mode<\/li>\n<li>Ensure that <kbd>calibKit.connected=false<\/kbd> in the file <kbd>c:\\E-AERI\\FTSW_EAERI.Config<\/kbd><\/li>\n<li>Delete the file <kbd>c:\\E-AERI\\Data\\EAERIHouseKeeping.hk<\/kbd><\/li>\n<li>Run <kbd>FTSW_EAERI_GUI.bat<\/kbd><\/li>\n<li>In the bottom panel, enter\n<ul>\n<li><kbd># of measurements = <strong>1<\/strong><\/kbd><\/li>\n<li><kbd># of coadded scans = <strong>9999<\/strong><\/kbd><\/li>\n<\/ul>\n<\/li>\n<li>Click <kbd>Start Acquisition<\/kbd><\/li>\n<li>Click <kbd>Stop Acquistion<kbd> after about 15 minutes<\/kbd><\/kbd>\n<ul>\n<li>Verify that the resistance look OK as they are being acquired (see Table 1.)<\/li>\n<li>20 records are needed for the analysis. &nbsp;A new record is acquired every ~30 s, so the test should take ~10 mins + initialization<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h4>Analysis<\/h4>\n<ol start=\"13\">\n<li>In a cygwin window\n<ul>\n<li><kbd>cd \/cygdrive\/c\/E-AERI\/Data<\/kbd><\/li>\n<li><kbd>python txt2hkspc.py EAERIHouseKeeping.hk --resistance<\/kbd><\/li>\n<\/ul>\n<\/li>\n<li>Transfer the created file <kbd>EAERIHouseKeeping_YYYYMMDD_HHMMSSS.csv<\/kbd> to a computer with <em>MS Excel<\/em><\/li>\n<li>Open&nbsp;<kbd>EAERIHouseKeeping_YYYYMMDD_HHMMSSS.csv<\/kbd> in <em>Excel<\/em>\n<ul>\n<li><kbd>Select all<\/kbd><\/li>\n<li><kbd>Copy<\/kbd><\/li>\n<\/ul>\n<\/li>\n<li>Open <a href=\"https:\/\/www.dropbox.com\/s\/6wokd97rxkyluiu\/AERI_Resistance_Check_SNXXX_YYYY-MM-DD.xls?dl=0\"><kbd>AERI_Resistance_Validation_Template.xls<\/kbd><\/a>\n<ul>\n<li>Paste data into <kbd>Bring in AERI HK File<\/kbd> worksheet<\/li>\n<li>Save as <kbd>AERI_Resistance_Check_SNXXX_YYMMDD.xls<\/kbd><\/li>\n<\/ul>\n<\/li>\n<li>Check to see if the results pass in the <kbd>Resistance Check Summary<\/kbd> worksheet\n<ul>\n<li>If all six thermistor values are <span style=\"color: #008000\">IN Spec<\/span> (green), then the test passes<\/li>\n<li>If any of the thermistor values are <span style=\"color: #ff0000\">OUT of Spec<\/span> (red), then the test fails and should be repeated\n<ul>\n<li>Check to see if the 20 records used are stable or drifting (the average is used in the calculation)<\/li>\n<li>If the values are drifting, then the temperature of the environment of the resistor boxes may not be stable enough<\/li>\n<li>Repeat the test for a longer time, in a more stable thermal environment if necessary<\/li>\n<li>If needed, <kbd>txt2hkspc.py<\/kbd> can be modified to output a larger number records than 20<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h4>Hardware packup<\/h4>\n<ol start=\"17\">\n<li>Power OFF&nbsp;the instrument<\/li>\n<li>Disconnect the resistor boxes<\/li>\n<li>Reconnect the ABB and HBB connectors to each blackbody<\/li>\n<li>Replace the front-end enclosure and front panel onto the AERI front-end<\/li>\n<li>Power ON the instrument and resume data collection<\/li>\n<\/ol>\n<p style=\"text-align: center\">Table&nbsp;1. Nominal resistance values and acceptable thresholds. &nbsp;Values in Ohms<\/p>\n<p>&lt;!&#8211;<\/p>\n<p>&#8211;&gt;<\/p>\n<table style=\"height: 464px\" width=\"561\">\n<tbody>\n<tr style=\"background: #EEEEEE\">\n<th width=\"50\"><\/th>\n<th colspan=\"3\" width=\"50\"><strong>ABB<\/strong><\/th>\n<th colspan=\"3\" width=\"50\"><strong>HBB<\/strong><\/th>\n<\/tr>\n<tr style=\"background: #EEEEEE\">\n<th width=\"50\"><\/th>\n<th width=\"50\">top<\/th>\n<th width=\"50\">apex<\/th>\n<th width=\"50\"><strong>bottom<\/strong><\/th>\n<th width=\"50\"><strong>top<\/strong><\/th>\n<th width=\"50\"><strong>apex<\/strong><\/th>\n<th width=\"50\"><strong>bottom<\/strong><\/th>\n<\/tr>\n<tr>\n<td width=\"50\">&nbsp;<span style=\"color: #ff0000\">Min R<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;98,947<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;124,931<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;799,464<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;2,759.1<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;9,896.0<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;12,494.8<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"50\">&nbsp;<span style=\"color: #008000\">Nominal R<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #008000\">&nbsp;99,000<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #008000\">&nbsp;125,000<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #008000\">&nbsp;800,000<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #008000\">&nbsp;2,760.0<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #008000\">&nbsp;9,900.0<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #008000\">&nbsp;12,500.0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"50\"><span style=\"color: #ff0000\">&nbsp;Max R<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;99,053<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;125,069<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;800,536<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;2,760.9<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;9,904.0<\/span><\/td>\n<td style=\"text-align: center\" width=\"50\"><span style=\"color: #ff0000\">&nbsp;12,505.2<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Equipment Required Large phillips screwdriver Ball driver set Calibrated resistor kit (2 boxes) Precaution The resistor boxes are sensitive to large&nbsp;changes in ambient temperature (e.g. heating from direct sunlight). &nbsp;It is best to conduct&nbsp;the test with the boxes in a sheltered, stable thermal environment. &nbsp;For best results, place the boxes in the location\/environment where the [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":0,"parent":324,"menu_order":4321,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-2334","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.ssec.wisc.edu\/aeri\/wp-json\/wp\/v2\/pages\/2334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ssec.wisc.edu\/aeri\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ssec.wisc.edu\/aeri\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ssec.wisc.edu\/aeri\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ssec.wisc.edu\/aeri\/wp-json\/wp\/v2\/comments?post=2334"}],"version-history":[{"count":1,"href":"https:\/\/www.ssec.wisc.edu\/aeri\/wp-json\/wp\/v2\/pages\/2334\/revisions"}],"predecessor-version":[{"id":2335,"href":"https:\/\/www.ssec.wisc.edu\/aeri\/wp-json\/wp\/v2\/pages\/2334\/revisions\/2335"}],"up":[{"embeddable":true,"href":"https:\/\/www.ssec.wisc.edu\/aeri\/wp-json\/wp\/v2\/pages\/324"}],"wp:attachment":[{"href":"https:\/\/www.ssec.wisc.edu\/aeri\/wp-json\/wp\/v2\/media?parent=2334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}