{"id":16467,"date":"2018-09-25T09:49:53","date_gmt":"2018-09-25T09:49:53","guid":{"rendered":"https:\/\/thomsongroup.com.au\/?post_type=product&#038;p=16467"},"modified":"2025-06-03T15:58:15","modified_gmt":"2025-06-03T05:58:15","slug":"mesalabs-defender-series","status":"publish","type":"product","link":"https:\/\/thomsongroup.com.au\/product\/mesalabs-defender-series\/","title":{"rendered":"MesaLabs Defender Series"},"content":{"rendered":"<p>MesaLabs Defender Series are the industry standard for accurate, reliable and portable Primary calibrators<br \/>\n3 models for 3 flow standards:<br \/>\n\u2022 1% Accuracy Volumetric<br \/>\n\u2022 Low: 5-500ccm<br \/>\n\u2022 Medium: 50-5,000ccm<br \/>\n\u2022 High: 300-30,000ccm<\/p>\n<h3>Defender 510 and Defender 520<\/h3>\n<ul>\n<li>Volumetric accuracy: \u00b1 1% of reading<\/li>\n<li>Three flow ranges: Low: 5 \u2013 500 ccm; Medium: 50 \u2013 50,000 ccm; High: 300 \u2013 30,000 ccm<\/li>\n<li>Defender 510 volumetric primary flow standard<\/li>\n<li>Defender 520 enhanced volumetric primary flow standard<\/li>\n<li>Documents temperature and pressure for enhanced audit trail.<\/li>\n<\/ul>\n<h3>Defender 530+<\/h3>\n<ul>\n<li>Three flow ranges: Low: 5 \u2013 500 ccm; Medium: 50 \u2013 50,000 ccm; High: 300 \u2013 30,000 ccm<\/li>\n<li>Volumetric accuracy: \u00b1 0.75% of reading<\/li>\n<li>Primary flow standard<\/li>\n<li>Standardised accuracy: \u00b1 1% of reading<\/li>\n<li>Swagelok fittings<\/li>\n<\/ul>\n<p><a class=\"fasc-button fasc-size-xlarge fasc-type-glossy fasc-rounded-medium\" style=\"background-color: #1a4f7b; color: #ffffff;\" target=\"_blank\" rel=\"noopener\" href=\"https:\/\/thomsongroup.com.au\/wp-content\/uploads\/2025\/06\/22-Literature-Brochures-Instruments-Defender-draft05_SINGLES_v2.pdf\">Download Brochure<\/a><\/p>\n<h3>Technical Specifications<\/h3>\n<ul>\n<li><strong>Approximate Time per Reading:<\/strong>&nbsp;1-15 seconds<\/li>\n<li><strong>Reading Styles (with averaging function userselectable from 1 to 100 measurement):<\/strong>&nbsp;Single (manual), Continuous or Burst<\/li>\n<li><strong>Gas Compatibility:<\/strong>&nbsp;Non-corrosive, non-condensing, less than 70% humidity<\/li>\n<li><strong>Flow Modes:<\/strong>&nbsp;Pressure or Suction<\/li>\n<li><strong>Measurement Cell Style:<\/strong>&nbsp;Integrated<\/li>\n<li><strong>AC Adapter\/Charger:<\/strong>&nbsp;12V DC, &gt;250ma, 2.5 mm center positive<\/li>\n<li><strong>Battery System:<\/strong>&nbsp;6V rechargeable, sealed lead-acid, 6-8 hrs typical operation<\/li>\n<li><strong>Battery Operational Time (5 cycles\/min):<\/strong>&nbsp;3 hrs backlight on, 8 hrs backlight off<\/li>\n<li><strong>Pressure and Suction Fittings:<\/strong>&nbsp;1\/4\u201d ID Swagelok\u00ae compression fittings, 3\/8\u201d fittings on High Model<\/li>\n<li><strong>Warranty:<\/strong>&nbsp;1 year; battery 6 months<\/li>\n<li><strong>Storage Temperature:<\/strong>&nbsp;0-70\u00b0C<\/li>\n<li><strong>Ambient Humidity:<\/strong>&nbsp;0-70%, non-condensing<\/li>\n<li><strong>Operating Pressure (Absolute):<\/strong>&nbsp;Atmospheric, 15 PSI Max<\/li>\n<li><strong>Display:<\/strong>&nbsp;Backlit graphical LCD<\/li>\n<li><strong>Data Port (for PC interface):<\/strong>&nbsp;Serial (RS-232)<\/li>\n<li><strong>Data Cable (for PC interface):<\/strong>&nbsp;1 meter (Defender Data Port to PC included)<\/li>\n<li><strong>Protective Case:<\/strong>&nbsp;Pelican case available<\/li>\n<li><strong>Dimensions (H x W x D):<\/strong>&nbsp;5.5\u201d x 6\u201d x 3\u201d \/ 140 x 150 x 75 mm<\/li>\n<li><strong>Weight:<\/strong>&nbsp;29 oz \/ 820 g<\/li>\n<\/ul>\n<table>\n<tbody>\n<tr>\n<td><strong>Model<\/strong><\/td>\n<td><strong>Defender 510<\/strong><\/td>\n<td><strong>Defender 520<\/strong><\/td>\n<td><strong>Defender 530+<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>&nbsp;Flow Ranges<\/strong><\/td>\n<td>Low: 5-500 ccm<\/p>\n<p>Medium: 50-5,000 ccm<\/p>\n<p>High: 300-30,000 ccm<\/td>\n<td>Low: 5-500 ccm<\/p>\n<p>Medium: 50-5,000 ccm<\/p>\n<p>High: 300-30,000 ccm<\/td>\n<td>Low: 5-500 ccm<\/p>\n<p>Medium: 50-5,000 ccm<\/p>\n<p>High: 300-30,000 ccm<\/td>\n<\/tr>\n<tr>\n<td><strong>Volumetric Accuracy<\/strong><\/td>\n<td>1%<\/td>\n<td>1%<\/td>\n<td>0.75%<\/td>\n<\/tr>\n<tr>\n<td><strong>Standardized Accuracy<\/strong><\/td>\n<td>N\/A<\/td>\n<td>N\/A<\/td>\n<td>1%<\/td>\n<\/tr>\n<tr>\n<td><strong>User Selectable Volumetric&nbsp;<\/strong><strong>Units<\/strong><\/td>\n<td>mL\/min, L\/min, cc\/min, cf\/min<\/td>\n<td>mL\/min, L\/min, cc\/min, cf\/min<\/td>\n<td>mL\/min, L\/min, cc\/min, cf\/min<\/td>\n<\/tr>\n<tr>\n<td><strong>User Selectable Standardized Units<\/strong><\/td>\n<td>N\/A<\/td>\n<td>N\/A<\/td>\n<td>smL\/min, sL\/min, scc\/min, scf\/ min<\/td>\n<\/tr>\n<tr>\n<td><strong>User Selectable Temperature Units<\/strong><\/td>\n<td>N\/A<\/td>\n<td>\u00b0C, \u00b0F<\/td>\n<td>\u00b0C, \u00b0F<\/td>\n<\/tr>\n<tr>\n<td><strong>User Selectable Pressure Units<\/strong><\/td>\n<td>N\/A<\/td>\n<td>mmHg, PSI, kPa<\/td>\n<td>mmHg, PSI, kPa<\/td>\n<\/tr>\n<tr>\n<td><strong>Pressure Accuracy<\/strong><\/td>\n<td>N\/A<\/td>\n<td>\u00b1 3.5 mmHg (typical) \u00b17.0 mm (max)<\/td>\n<td>\u00b1 3.5 mmHg (typical) \u00b17.0 mm (max)<\/td>\n<\/tr>\n<tr>\n<td><strong>Temperature Accuracy<\/strong><\/td>\n<td>N\/A<\/td>\n<td>\u00b1 0.8 \u00b0C (typical) \u00b1 1.3 \u00b0C (max)<\/td>\n<td>\u00b1 0.8 \u00b0C (typical) \u00b1 1.3 \u00b0C (max)<\/td>\n<\/tr>\n<tr>\n<td><strong>Industry Applications<\/strong><\/td>\n<td>Industrial Hygiene, Air Quality<\/td>\n<td>Industrial Hygiene, Air Quality<\/td>\n<td>Manufacturing, Air Quality, Personal Gas Sampling<\/td>\n<\/tr>\n<tr>\n<td><strong>Pressure and Suction Fittings<\/strong><\/td>\n<td>1\/4&#8243; ID Hose Barb<\/td>\n<td>1\/4&#8243; ID Hose Barb<\/td>\n<td>1\/4&#8243; ID Swagelok \u00ae compression fittings, 3\/8&#8243; fittings on High Model<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>MesaLabs Defender Series are the industry standard for accurate, reliable and portable Primary calibrators 3 models for 3 flow standards: \u2022 1% Accuracy Volumetric \u2022 Low: 5-500ccm \u2022 Medium: 50-5,000ccm \u2022 High: 300-30,000ccm Defender 510 and Defender 520 Volumetric accuracy: \u00b1 1% of reading Three flow ranges: Low: 5 \u2013 500 ccm; Medium: 50 \u2013 [&hellip;]<\/p>\n","protected":false},"featured_media":20946,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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