{"id":13798,"date":"2021-11-30T11:34:56","date_gmt":"2021-11-30T19:34:56","guid":{"rendered":"https:\/\/www.vernier.com\/til\/?p=13798&#038;preview=true&#038;preview_id=13798"},"modified":"2025-06-06T13:51:17","modified_gmt":"2025-06-06T20:51:17","slug":"go-direct-wide-range-pressure-troubleshooting-and-faqs","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/13798","title":{"rendered":"Go Direct Wide-Range Pressure Troubleshooting and FAQs"},"content":{"rendered":"<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 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\" style=\"flex-basis:50%\">\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.vernier.com\/gdx-wrpl\">Go Direct Wide Range Pressure<\/a><\/h3>\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p class=\"wp-block-paragraph\">Liquid &amp; Gas Compatible: <strong>GDX-WRPL<\/strong><br \/>\u26ac <a href=\"\/manuals\/GDX-WRPL\">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\" style=\"flex-basis:50%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2022\/01\/product.gdx-wrpl._hero.001.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-8f761849 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\" style=\"flex-basis:50%\">\n<p class=\"wp-block-paragraph\">Gas Compatible Only: <strong>GDX-WRP<\/strong><br \/>\u26ac <a href=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2025\/06\/GDX-WRP.pdf\">Specifications and User Guide<\/a><\/p>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2022\/01\/product.gdx-wrp._hero.001-1.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\">Troubleshooting<\/h3>\n<p class=\"wp-block-paragraph\"><strong>General: <\/strong>Press the power button on the sensor to turn it on. Connect your sensor as described in the <a href=\"https:\/\/www.vernier.com\/til\/get-started\/go-direct\">Getting Started instructions for your device<\/a>.<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>Primary Test:<\/strong> Connect the sensor to a Vernier interface and run the data-collection program. The units for the default readings are kPa and they should be reasonable for the altitude at which the sensor is being used (around 101 kPa at sea-level). If you plug the output with your finger, the pressure should rise slightly (~5 kPa).<\/li>\n<\/ul>\n<p class=\"has-text-align-center has-very-light-gray-background-color has-background wp-block-paragraph\">To ensure an airtight seal, use the included plumber&#8217;s tape on the pressure sensor&#8217;s threading. <br \/>Wrap only once and to the right, as the threading runs. <\/p>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Alternative Connectors<\/h3>\n<p class=\"wp-block-paragraph\">Go Direct Wide-Range Pressure comes with two quick disconnect fittings as noted below. Also included is a two-foot section of plastic tubing designed to fit over the hose barb connector. Its standard size allows you to connect to a variety of third-party instrumentation or adapters.<\/p>\n<ul class=\"wp-block-list\">\n<li>Chrome-plated Brass Quick Disconnect Tube Fitting with 1\/8\u201d NPT thread insert<\/li>\n<li>Chrome-plated Brass Quick Disconnect Tube Fitting with 1\/8\u201d hose barb insert<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">If you wish to purchase different quick disconnect inserts or replacements, many are available and compatible with the sensor. Contact chemistry@vernier.com for recommendations.<\/p>\n<p class=\"wp-block-paragraph\">Unfortunately, there is not a quick disconnect luer lock option at this time. Below is an option for a luer lock set up:<\/p>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"310\" src=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2023\/12\/image-3-1024x310.png\" alt=\"\" class=\"wp-image-18809\" srcset=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2023\/12\/image-3-1024x310.png 1024w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2023\/12\/image-3-600x181.png 600w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2023\/12\/image-3-768x232.png 768w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2023\/12\/image-3-1536x464.png 1536w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2023\/12\/image-3.png 1730w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Compatible Liquids\u2014GDX-WRPL only<\/h3>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.7%\">\n<p class=\"wp-block-paragraph\">The GDX-WRPL features a <strong>Parylene C<\/strong> coating, renowned for its excellent chemical resistance and barrier properties. This coating provides protection against a variety of chemicals, making the sensor suitable for numerous laboratory applications. However, it&#8217;s essential to understand its compatibility limits to ensure the longevity and accuracy of the sensor.<\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.333%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2022\/01\/product.gdx-wrpl._hero.001.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h4 class=\"wp-block-heading\"><strong>SHORT-TERM EXPOSURE<\/strong><\/h4>\n<ul class=\"wp-block-list\">\n<li><strong>Water<\/strong> (distilled, deionized)<\/li>\n<li><strong>Dilute acids<\/strong> (e.g., hydrochloric acid, sulfuric acid, nitric acid at concentrations \u226410%)<\/li>\n<li><strong>Dilute bases<\/strong> (e.g., sodium hydroxide, ammonium hydroxide at concentrations \u226410%)<\/li>\n<li><strong>Alcohols<\/strong> (e.g., isopropyl alcohol, ethanol)<\/li>\n<li><strong>Hydrogen peroxide<\/strong> (\u22643%)<\/li>\n<li><strong>Aliphatic hydrocarbons<\/strong> (e.g., n-octane)<\/li>\n<li><strong>Aromatic hydrocarbons<\/strong> (e.g., toluene, chlorobenzene)<\/li>\n<li><strong>Ketones<\/strong> (e.g., acetone)<\/li>\n<\/ul>\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h4 class=\"wp-block-heading\"><strong>USE WITH CAUTION<\/strong><\/h4>\n<ul class=\"wp-block-list\">\n<li><strong>Concentrated acids and bases<\/strong>: May cause swelling or degradation over extended exposure.<\/li>\n<li><strong>Strong oxidizers<\/strong>: Can affect the integrity of the coating.<\/li>\n<li><strong>High-temperature solvents<\/strong>: Elevated temperatures can increase the permeability of the coating.<\/li>\n<\/ul>\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h4 class=\"wp-block-heading\"><strong>NOT RECOMMENDED<\/strong><\/h4>\n<ul class=\"wp-block-list\">\n<li><strong>Prolonged exposure to aggressive solvents<\/strong>: Such as benzoyl benzoate or x-chloronaphthalene, especially at temperatures above 150 \u00baC.<\/li>\n<li><strong>Mechanical cleaning agents<\/strong>: Abrasive materials can damage the coating.<\/li>\n<\/ul>\n<p class=\"has-very-light-gray-background-color has-background wp-block-paragraph\"><strong>Best practices when using liquids:<\/strong><br \/>\u26ac <strong>Rinse after use<\/strong>: Always rinse the sensor with distilled water after exposure to chemicals to prevent residue buildup.<br \/>\u26ac <strong>Avoid prolonged immersion<\/strong>: Limit the duration of exposure to compatible liquids to prevent potential degradation.<\/p>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n<p class=\"wp-block-paragraph\">\n<ul class=\"wp-block-list\">\n<li>Range: 0 to 690 kPa<\/li>\n<li>Maximum pressure can withstand: 900 kPa<\/li>\n<li>Accuracy<br \/>\u26ac factory calibration: \u00b12 kPa<br \/>\u26ac custom calibration: \u00b11 kPa (1 point calibration at atmosphere)<\/li>\n<li>Temperature range: \u201340 \u00baC to 125 \u00baC<\/li>\n<li>Compatibility<br \/>\u26ac Gas Compatible (GDX-WRP): Dry gases only<br \/>\u26ac Liquid &amp; Gas Compatible (GDX-WRPL): Dry gases and Parylene C liquid compatibility<\/li>\n<li>Internal volume of sensor<br \/>\u26ac with 1\/8\u201d NPT Thread Insert attached: 0.786 mL<br \/>\u26ac with 1\/8\u201d Hose Barb Insert attached: 0.623 mL<\/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 class=\"wp-block-paragraph\">Go Direct Wide-Range Pressure is calibrated to true atmospheric pressure before shipping. If you wish to re-calibrate to sea level pressure based on your elevation, perform a one-point calibration using a known value as described below. For more information, see <a href=\"\/til\/4011\/\">How do I calibrate my sensor?<\/a><\/p>\n<ol class=\"wp-block-list\">\n<li>Connect the sensor to an interface and launch the software.<\/li>\n<li>Initiate the calibration procedure.<\/li>\n<li>Enter the known calibration value in the box.<\/li>\n<li>Once the relative stability reading in the input field stops changing significantly, click or tap Keep to record the input value.<\/li>\n<li>Click or tap Apply to complete the calibration process. This calibration is automatically stored to the sensor. To restore the default calibration, click Reset to Defaults.<\/li>\n<\/ol>\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 won\u2019t tur<\/span>n when on its own, but does when connected to a USB power source, try charging the sensor for at least 2 hours using a known-to-work USB cable.<\/li>\n<li>If you continue to have trouble<span style=\"font-weight: 400;\">, 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 the battery is indeed at the end of its life, the battery should be replaced. <\/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\/4014\/\">How do I remove or replace a Go Direct battery?<\/a> for more information (including a <a href=\"https:\/\/youtu.be\/Lv2yCaL0ruU\">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 wp-block-paragraph\"><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-8f761849 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\/sensor-cart-charge-station\/\">Go Direct<sup>&reg;<\/sup> Sensor Cart Charge Station<\/a> (<nobr>GDX-CART-CRG<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-gas-pressure-sensor\/\">Go Direct<sup>&reg;<\/sup> Gas Pressure Sensor<\/a> (<nobr>GDX-GP<\/nobr>)<\/li>\n<li><a href=\"\/product\/pressure-sensor-400\/\">Pressure Sensor 400<\/a> (<nobr>PS400-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>Go Direct Wide Range Pressure Liquid &amp; Gas Compatible: GDX-WRPL\u26ac Specifications and User Guide Gas Compatible Only: GDX-WRP\u26ac Specifications and User Guide Troubleshooting General: Press&#8230;<\/p>\n","protected":false},"author":11015,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[7612,7610,1816,720,7611],"class_list":["post-13798","post","type-post","status-publish","format-standard","hentry","tag-gdxwrp","tag-gdxwrpmain","tag-gpsmain","tag-maintil","tag-wrpmain"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/13798","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\/11015"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=13798"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/13798\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=13798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=13798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=13798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}