{"id":3854,"date":"2019-08-12T20:40:18","date_gmt":"2019-08-13T03:40:18","guid":{"rendered":""},"modified":"2025-07-25T08:12:40","modified_gmt":"2025-07-25T15:12:40","slug":"3854","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/3854","title":{"rendered":"Go Direct Conductivity Probe Troubleshooting and FAQs"},"content":{"rendered":"<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\"><a href=\"\/product\/go-direct-conductivity-probe\/\">Go Direct<sup>&reg;<\/sup> Conductivity Probe<\/a> (<nobr>GDX-CON<\/nobr>)<\/h3>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p><a href=\"\/manuals\/GDX-CON\">Specifications and User Guide<\/a><\/p>\n<\/div>\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2019\/11\/product.gdx-con._hero.001-scaled.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\">Troubleshooting<\/h3>\n<p><strong>Primary Test: <\/strong>Press the power button on the sensor to turn it on. Connect your sensor as described in the <a href=\"\/til\/get-started\/go-direct\">Getting Started instructions for your device<\/a>. (The green LED will flash to indicate the sensor is connected.)<\/p>\n<ul class=\"wp-block-list\">\n<li>Take a reading in a solution of known value. A reading close to that value should register.<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Additional Troubleshooting<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/til\/760\/\">Where do I get Conductivity Standards?<\/a><\/li>\n<li><a href=\"\/til\/1841\/\">What material are your Conductivity Probes made of?<\/a><\/li>\n<li><a href=\"\/til\/3910\/\">What chemicals can I use with your conductivity probes?<\/a><\/li>\n<li><a href=\"\/til\/4411\/\">Why can I only perform a one-point calibration with my Go Direct Conductivity sensor?<\/a><\/li>\n<li><a href=\"\/til\/11516\/\">What is the difference between salinity and conductivity?<\/a><\/li>\n<li><a href=\"\/til\/15786\/\">Go Direct sensor does not connect to LabQuest 2 via Bluetooth.<\/a><\/li>\n<li><a href=\"\/til\/15056\/\">How do I replace the battery in a Go Direct Wand-Style Sensor?<\/a><\/li>\n<li><a href=\"\/til\/6827\/\">Troubleshooting Bluetooth Connections with Go Direct Sensors<\/a><\/li>\n<li><a href=\"\/til\/12943\/\">What can I do if a Go Direct sensor's Bluetooth LED flashes red and green when I try to connect to it and the connection fails?<\/a><\/li>\n<li><a href=\"\/til\/3857\/\">Will my device work with Go Direct Sensors via Bluetooth?<\/a><\/li>\n<li><a href=\"\/til\/3085\/\">How do I know if my LabQuest will work with Go Direct Sensors and Go Wireless devices?<\/a><\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n<ul class=\"wp-block-list\">\n<li>Description: ABS body, parallel carbon (graphite) electrodes<\/li>\n<li>Range: 0 to 20,000 \u03bcS\/cm (0 to 10,000 mg\/L TDS)<\/li>\n<li>Resolution: 0.01 \u00b5S\/cm<\/li>\n<li>Accuracy using factory calibration: \u00b11% of full scale reading (valid for 1 to 10,000 \u00b5S\/cm)<\/li>\n<li>Temperature compensation: Automatic from 5 to 35\u00b0C, can be turned off<\/li>\n<li>Temperature range (can be placed in): 0 to 80\u00b0C<\/li>\n<li>Cell constant: 1.0 cm<sup>-1<\/sup><\/li>\n<li>Dimensions: 12 mm OD and 12 cm length<\/li>\n<li>Connections:<br \/>\u26ac Wireless: Bluetooth<sup>\u00ae<\/sup> v4.2 (wireless range 30 m unobstructed) <br \/>\u26ac Wired: USB 2.0 full speed<\/li>\n<li>Battery: <a href=\"http:\/\/www.vernier.com\/gdx-bat-300\">300 mA Li-Poly<\/a><br \/>\u26ac Battery Life (single, full charge): ~24 hours continuous data collection<br \/>\u26ac Battery Life (lifetime): 2 \u2013 5 years (typical)<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Calibration<\/h3>\n<p>You do not have to perform a new calibration when using the Conductivity Probe for most experiments in the classroom. However, if your experimental application requires more accurate readings, you should calibrate your sensor. For more information on calibration, see<\/p>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/til\/4011\/\">How do I calibrate my sensor?<\/a><\/li>\n<li><a href=\"\/til\/4411\/\">Why can I only perform a one-point calibration with my Go Direct Conductivity sensor?<\/a><\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Battery Troubleshooting<\/h3>\n<ol class=\"wp-block-list\">\n<li><span style=\"font-weight: 400;\">If the sensor can be turned on when connected by USB but not when disconnected from USB, the battery either needs charging or has reached its end of life and can no longer hold a charge. <\/span><br \/>\u26ac <span style=\"font-weight: 400;\">First, try charging the sensor for several hours. <\/span><\/li>\n<li><span style=\"font-weight: 400;\">If the sensor still won\u2019t turn on when disconnected from USB, try swapping the battery with a working sensor to see if the problem follows the battery or stays with the sensor.<\/span><br \/>\u26ac If the problem stays with the sensor, the battery is probably not the issue.<br \/>\u26ac If the problem follows the battery, <span style=\"font-weight: 400;\">the battery has likely reached its end of life.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">If you intend to use this sensor wirelessly, its battery will need replacing<\/span>.<br \/><span style=\"font-weight: 400;\"><a href=\"\/product\/go-direct-300-mah-replacement-battery\/\">Go Direct&reg; 300 mAh Replacement Battery<\/a> (<nobr>GDX-BAT-300<\/nobr>)<\/span><\/li>\n<li>See <a href=\"\/til\/15056\/\">How do I replace the battery in a Go Direct Wand-Style Sensor?<\/a> for more information (including a <a href=\"https:\/\/youtu.be\/BRLhaOUjmaI\">video<\/a>).<\/li>\n<\/ol>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p class=\"has-text-align-center has-very-light-gray-background-color has-background\"><span style=\"font-weight: 400;\"><strong>Rechargeable batteries are covered by a one-year warranty.<\/strong><\/span><br \/>Batteries <span style=\"font-weight: 400;\">should last two to five years in typical use. <\/span><\/p>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Related Products<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/product\/micro-usb-to-usb-c-cable\/\">Micro USB to USB-C Cable<\/a> (<nobr>CB-USB-C-MICRO<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-charge-station\/\">Go Direct<sup>&reg;<\/sup> Charge Station<\/a> (<nobr>GDX-CRG<\/nobr>)<\/li>\n<li><a href=\"https:\/\/www.vernier.com\/product\/conductivity-standard-solution\/\">Conductivity Standard Solutions<\/a><br \/>\u26ac CON-LST: Low\u2014150 \u00b5S\/cm<br \/>\u26ac CON-MST: Medium\u20141413 \u00b5S\/cm<br \/>\u26ac CON-HST: High\u201412,880 \u00b5S\/cm<\/li>\n<li><a href=\"\/product\/electrode-support\/\">Electrode Support<\/a> (<nobr>ESUP<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-sensor-clamp\/\">Go Direct&reg; Sensor Clamp<\/a> (<nobr>GDX-CLAMP<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-platinum-cell-conductivity-probe\/\">Go Direct<sup>&reg;<\/sup> Platinum-Cell Conductivity Probe<\/a> (<nobr>GDX-CONPT<\/nobr>)<\/li>\n<li><a href=\"\/product\/platinum-cell-conductivity-probe\/\">Platinum-Cell Conductivity Probe<\/a> (<nobr>CONPT-BTA<\/nobr>)<\/li>\n<li><a href=\"\/product\/conductivity-probe\/\">Conductivity Probe<\/a> (<nobr>CON-BTA<\/nobr>)<\/li>\n<\/ul>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Replacement Parts<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/product\/go-direct-300-mah-replacement-battery\/\">Go Direct&reg; 300 mAh Replacement Battery<\/a> (<nobr>GDX-BAT-300<\/nobr>)<\/li>\n<li><a href=\"\/product\/micro-usb-cable\/\">Micro USB Cable<\/a> (<nobr>CB-USB-MICRO<\/nobr>)<\/li>\n<\/ul>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Specifications and User Guide Troubleshooting Primary Test: Press the power button on the sensor to turn it on. Connect your sensor as described in the&#8230;<\/p>\n","protected":false},"author":1073,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[1808,6523,6519,720],"class_list":["post-3854","post","type-post","status-publish","format-standard","hentry","tag-conmain","tag-gdxconmain","tag-gdxmain","tag-maintil"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/3854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/users\/1073"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=3854"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/3854\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=3854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=3854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=3854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}