{"id":8146,"date":"2024-10-26T14:12:27","date_gmt":"2024-10-26T14:12:27","guid":{"rendered":"https:\/\/csiag.eu\/?p=8146"},"modified":"2024-11-04T12:37:22","modified_gmt":"2024-11-04T12:37:22","slug":"urine-measuring-toilet","status":"publish","type":"post","link":"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/","title":{"rendered":"Urine-diverting toilet - measure urine level"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_87_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/#Schaltung_im_Detail\" >Circuit in detail<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/#IP65_Gehause\" >IP65 housing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/#Sensor\" >sensor<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/#Platinenausschnitte_fertigen\" >Producing circuit board cut-outs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/#Buchse_%E2%80%93_Kabelanschluss\" >Socket - cable connection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/#Stabilisierung\" >Stabilization<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/#Klinkenbuchse_%E2%80%93_Positionierung\" >Jack socket - Positioning<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/#Ablangen_der_Speichen\" >Cutting the spokes to length<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/#Testlauf\" >Test run<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading time<\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<p class=\"wp-block-paragraph\">Urine-diverting toilets are practical, but the floats for the urine stall tend to get stuck. And then the unsightly flooding is not far away.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is caused by urine scale that eventually blocks the internal float. You can of course rinse periodically with vinegar, baking soda or hot water, but water is in short supply in the motorhome and a supply of vinegar is quickly used up.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The time had come to think about an alternative solution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ultrasonic level sensor solutions cannot be used due to the cramped conditions and the small volume of the urine containers. Commercially available capacitive sensors, which convert the fill level analogously, are designed for larger volumes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But there is a ready-made <a href=\"https:\/\/www.ebay.de\/itm\/305451328328\" target=\"_blank\" rel=\"noreferrer noopener\">circuit<\/a>which optimally fulfills the purpose with its own sensor design adapted to the container size.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Schaltung_im_Detail\"><\/span>Circuit in detail<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The power supply is polarity-independent, as rectifier diodes always provide the applied voltage with the correct polarity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The sensor, consisting of three level measuring rods, is connected to the right-hand screw terminal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The relay contacts NO (normally open), NC (normally closed) and COM (changeover contact) are available via the top left-hand terminal strip.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"507\" src=\"https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/image-10-1024x507.png\" alt=\"\" class=\"wp-image-8147\" style=\"width:449px;height:auto\" srcset=\"https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/image-10-1024x507.png 1024w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/image-10-18x9.png 18w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/image-10-300x149.png 300w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/image-10-768x381.png 768w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/image-10.png 1223w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Connection of the circuit<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"IP65_Gehause\"><\/span>IP65 housing<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A suitable one <a href=\"https:\/\/www.amazon.de\/dp\/B07JJD4FPS?ref=ppx_yo2ov_dt_b_fed_asin_title\" target=\"_blank\" rel=\"noreferrer noopener\">Housing<\/a> with internal dimensions of 52 x 77 mm allows the waterproof housing of the circuit and the equally protected routing of the connection cables via two PG7 <a href=\"https:\/\/www.amazon.de\/dp\/B0CR4FJJ9R?ref=ppx_yo2ov_dt_b_fed_asin_title\" target=\"_blank\" rel=\"noreferrer noopener\">Cable glands<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The holes for the screw connections are drilled in the middle of the housing base and 18 mm from the edge of the housing.<br>The wall thickness of the lock nuts of the screw fittings is reduced by approx. 2 mm on two adjacent sides so that the threads on the side of the housing do not interfere with tightening.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The middle fixing point on the relevant side of the housing is also milled off because it also interferes with the lock nuts.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Schaltung_Gehaeuse_Urin_Stand.png\" alt=\"\" class=\"wp-image-8148\" style=\"width:476px;height:auto\" srcset=\"https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Schaltung_Gehaeuse_Urin_Stand.png 800w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Schaltung_Gehaeuse_Urin_Stand-16x12.png 16w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Schaltung_Gehaeuse_Urin_Stand-300x225.png 300w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Schaltung_Gehaeuse_Urin_Stand-768x576.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Circuit built into the housing with two IP65 cable glands<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">A 3-core cable is sufficient for wiring the sensors and a 5-core cable for the power supply and relay contacts. The 3-core cable consists of a 3.5 mm stereo jack cable divided into two parts. The open ends are connected to the circuit, the jack plug to the socket to which the sensors are connected. This results in a separable connection between the electronics and the sensor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The connections are made at the rear via a soldered connection, as the space is too limited, at least on the side of the sensor screw terminals.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The circuit board can be attached using two layers <a href=\"https:\/\/www.amazon.de\/gp\/product\/B086RQZYTM\/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&amp;psc=1\" target=\"_blank\" rel=\"noreferrer noopener\">double-sided adhesive tape<\/a> take place.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sensor\"><\/span>sensor<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Three V2A bicycle spokes are used as the sensor, which are shortened to the appropriate length. Using the existing M 2.5 threads, the cables are connected to the respective spokes via eyelets, nuts, washers and lock nuts.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Platinenausschnitte_fertigen\"><\/span>Producing circuit board cut-outs<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cut two sections of perforated epoxy board measuring approximately 30 x 30 mm. Use a permanent marker to draw a circle that corresponds approximately to the inside diameter of the screw cap of the spout opening.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The three spokes are now arranged at an angle of 120\u00b0 to each other in the triangle centrally at a distance of 7.6 mm (3 times the PCB hole spacing of 2.54 mm) and the existing PCB holes are enlarged to 2 mm.<br>An 8.5 mm hole is drilled in the center to accommodate the jack socket.<br>To prevent the board from breaking during drilling, work to 7.5 mm - without pressure - in 0.5 mm increments starting at 2 mm. Cut the last millimeter to size with a round file.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Drill an identical hole in the center of the lid of the urine container spout, congruent with this hole, if necessary marking it beforehand with a graver and starting with a 2 mm hole and increasing to about 9 mm.<br>The thread of the jack socket is later passed through this hole and fastened to the cover with the supplied lock nut.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Using a belt sander, grind to the inner edge of the marking and easily obtain two round PCB disks.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buchse_%E2%80%93_Kabelanschluss\"><\/span>Socket - cable connection<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The connection cables soldered to the socket are covered with shrink tubing and all three cables are fed through the central hole in the upper circuit board.<br>The ends, stripped by about 2 cm, are placed under the lower washer, wrapped around one spoke each and secured with an M 2.5 lock nut.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Stabilisierung\"><\/span>Stabilization<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The inner spacer and the lower circuit board disk can now be pushed against the upper circuit board.<br>In order to stabilize the construction <em>Stabilit-Express<\/em> Proven. Filled all around until a round body is created, the round finish is perfected after curing using a belt sander.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The length of this component is 34 mm from the upper edge of the screwed-in spokes and the threaded end of the inserted jack socket above the upper circuit board to the exit of the spokes from the lower circuit board disc, including their final <em>Stabilit-Express<\/em>-sealing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Klinkenbuchse_%E2%80%93_Positionierung\"><\/span>Jack socket - Positioning<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The jack socket can now be pushed with the cables into the tube acting as a spacer until the end of the socket thread for the lock nut is flush with the spoke ends at the top.<br>Held in this position, it is again covered all around with <em>Stabilit-Express<\/em> and wait until the adhesive has set (5 ... 10 minutes).<br>It is important that the bushing is held plumb on the one hand and flush in height on the other.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ablangen_der_Speichen\"><\/span>Cutting the spokes to length<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Once the round shape has been achieved using a belt sander, the first fitting is due: does the construction fit neatly into the spout of the urine container? If in doubt, the belt sander will help. As soon as this is achieved, the prepared cover is placed over the sensor and locked with the hexagon nut.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The longest spoke (11.6 mm from the lower edge of the lid) reaches approximately half the height of the container when screwed in. The shortest spoke (5.1 mm from the lower edge of the lid) marks the lower edge of the weld seam of the container, while the middle spoke (8.4 mm from the lower edge of the lid) corresponds to the desired level, e.g. 6 liters.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Determining this level is easy: fill with 6 liters of water, plumb through the spout opening with a wooden stick. As soon as it reaches the water, the level remains on the stick as a wet mark and can be transferred to the spoke.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The spokes can be cut off easily and precisely at the respective markings with a cutting disk using a permanent marker. Deburr the ends with sandpaper.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"1000\" height=\"307\" src=\"https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Urin_Sensor.png\" alt=\"\" class=\"wp-image-8264\" srcset=\"https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Urin_Sensor.png 1000w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Urin_Sensor-18x6.png 18w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Urin_Sensor-300x92.png 300w, https:\/\/csiag.eu\/wp-content\/uploads\/2024\/10\/Urin_Sensor-768x236.png 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Testlauf\"><\/span>Test run<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Once the electronics have been connected to the sensor socket via the jack plug and the electronics have been supplied with power, the first test run can begin.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">According to the manufacturer, the urine container holds 7.5 liters. The first \"message\" should be sent at 6 liters and the second \"message\" at 7.4 liters. The difference between the messages corresponds to about two to three complete urination processes. If, for example, the first message signals when you go to the toilet at the end of the day, you can safely empty your bladder in the morning without risking a footbath. The second signal, however, is definitely the last straw and you should empty your bladder immediately.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das erste Signalisierungsverhalten entspricht etwa dem des Original-Schwimmers. \u00dcber die individuelle Anpassung der Speichenl\u00e4ngen hat man hier die Freiheit, das f\u00fcr sich passende Niveau einzustellen. Mit der zweiten Signalisierung ergibt sich die Option der Anzeige von &#8222;wirklich VOLL&#8220; \ud83d\ude09 &#8230;.<\/p>","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading time<\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Urine-diverting toilets are practical, but the floats for the urine stall tend to get stuck. And then the unsightly flooding is not far away. This is caused by urine scale that eventually blocks the internal float. You can of course rinse periodically with vinegar, baking soda and hot water, but water is in short supply in the motorhome and a supply of vinegar is quickly used up. So the point was...&nbsp;<a href=\"https:\/\/csiag.eu\/en\/blog\/2024\/10\/26\/trenntoilette-urin-stand-messen\/\" rel=\"bookmark\">Read More \"<span class=\"screen-reader-text\">Urine-diverting toilet - measure urine level<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[341,318],"tags":[3693,3687,904,3592,3694,3696,2242,3695,1615,467,3688,3689,3690,3692,3691,3662],"class_list":["post-8146","post","type-post","status-publish","format-standard","hentry","category-austausch-thetford-kassetten-toilette-gegen-separette-trenntoilette","category-womo-umbau","tag-essig","tag-fuellstand-sensor","tag-gehaeuse","tag-ip65","tag-natron","tag-pg7","tag-schaltung","tag-schwimmer","tag-sensor","tag-spannungsversorgung","tag-trenntoilette","tag-urin","tag-urin-behaelter","tag-urin-stand","tag-urinstein","tag-verschraubung"],"modified_by":"Achim Goerner","_links":{"self":[{"href":"https:\/\/csiag.eu\/en\/wp-json\/wp\/v2\/posts\/8146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/csiag.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/csiag.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/csiag.eu\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/csiag.eu\/en\/wp-json\/wp\/v2\/comments?post=8146"}],"version-history":[{"count":0,"href":"https:\/\/csiag.eu\/en\/wp-json\/wp\/v2\/posts\/8146\/revisions"}],"wp:attachment":[{"href":"https:\/\/csiag.eu\/en\/wp-json\/wp\/v2\/media?parent=8146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csiag.eu\/en\/wp-json\/wp\/v2\/categories?post=8146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csiag.eu\/en\/wp-json\/wp\/v2\/tags?post=8146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}