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Главная Каталог Медтехника Гигрометр Гигрометр-психрометр ВИТ-2
Гигрометр-психрометр ВИТ-2

Гигрометр-психрометр ВИТ-2

Гигрометр ВИТ-2 предпочтительно использовать, если температура в месте установки прибора в течение всего периода измерений относительной влажности не снижается ниже 15-20 °C (например, зимой) и не превышает 35-40 °C (летом). Прибор применяется в медицинских учреждениях, аптеках, складских помещениях, разного рода теплицах, птицеводческих хозяйствах и других местах где предусмотренный контроль влажности воздуха.

Гигрометр состоит из:
корпуса, в который на шкальных пластинах вмонтированы два термометра "сухой" и "увлажненный".
на обратной стороне корпуса установлен пластиковый резервуар (питатель), необходимый для смачивания фитиля "увлажненного" термометра.
на корпусе гигрометров размещена пластина с психрометрической таблицей, рассчитанной для скорости аспирации от 0.5 до 1.0 м/с.

Принцип действия гигрометров основан на определении относительной влажности окружающей среды по разнице показаний "сухого" и "увлажненного" термометров и показаниям "сухого" термометра с помощью психрометрической таблицы.
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MySQL статистика (28)
Query Rows Time Cached
SET SESSION sql_mode = '' - 0.000110 false
SELECT items.id, items.parent_id, items.title, items.is_hidden_in_menu, items.sort_order, items.href, menus.code as menu_code, menus.use_code_in_links as menu_code_in_links, blocks.id as block_id, blocks.code as block_code, blocks.description, blocks.content, blocks.template, blocks.block_type, f.id as image_id, f.disk_name as image_path FROM admin_menu_items as items LEFT JOIN admin_menus as menus ON menus.id = items.menu_id LEFT JOIN admin_text_blocks as blocks ON blocks.id = items.text_block_id LEFT JOIN db_files as f ON f.master_object_id = items.id AND f.master_object_class = 'Admin_MenuItem' AND f.field = 'image' WHERE items.is_hidden is null ORDER BY items.parent_id, items.sort_order 11 0.001080 false
SELECT seo_settings.* FROM seo_settings ORDER BY id desc LIMIT 0, 1 1 0.000329 false
update seo_settings set individual_seo_settings = 'a:0:{}' - 0.000179 false
SELECT sale_points.* FROM sale_points WHERE (sale_points.hidden IS NULL OR hidden = 0) ORDER BY title 2 0.000377 false
SELECT sale_points.* FROM sale_points WHERE (sale_points.id = '200') LIMIT 0, 1 1 0.000365 false
SELECT shop_carts.* FROM shop_carts WHERE (shop_carts.cart_id = '143bc5f66e0c4ea214a54e3103250532ea720bcea72f82832522d1b18b1365f6dbd674c82945b136e8d1b0422e3004dd966aa90a7cc8b2a08e5510263027d4d2') LIMIT 0, 1 0 0.000283 false
SELECT id, level, parent_id FROM catalog_categories WHERE hidden is null AND deleted is null ORDER BY level ASC 140 0.000476 false
SELECT products.* FROM catalog_products as products WHERE products.id = '7592' AND products.hidden is null AND products.deleted is null AND products.category_id in ('1', '2', '3', '4', '5', '6', '7', '9', '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39', '40', '41', '42', '43', '44', '45', '46', '47', '48', '49', '50', '51', '52', '53', '55', '56', '58', '59', '60', '61', '62', '63', '64', '65', '66', '68', '70', '71', '72', '73', '74', '75', '76', '77', '78', '79', '80', '81', '82', '83', '84', '85', '86', '87', '88', '89', '90', '91', '92', '93', '94', '95', '96', '97', '98', '99', '100', '101', '102', '103', '104', '105', '106', '107', '108', '110', '111', '112', '113', '114', '115', '116', '117', '118', '119', '120', '121', '122', '123', '124', '125', '126', '127', '130', '131', '132', '133', '134', '135', '136', '137', '138', '139', '140', '141', '142', '143', '144', '145', '146', '147', '148', '20', '22', '23', '24', '69') LIMIT 0, 1 1 0.000715 false
SELECT * FROM db_files as files WHERE master_object_class = 'Catalog_Product' AND master_object_id in ('7592') 1 0.000500 false
SELECT * FROM catalog_attributes as ca LEFT JOIN catalog_attribute_values as cav ON ca.id = cav.attribute_id WHERE cav.product_id in ('7592') 0 0.000447 false
SELECT shop_carts.* FROM shop_carts WHERE (shop_carts.cart_id = '143bc5f66e0c4ea214a54e3103250532ea720bcea72f82832522d1b18b1365f6dbd674c82945b136e8d1b0422e3004dd966aa90a7cc8b2a08e5510263027d4d2') LIMIT 0, 1 0 0.000299 false
SELECT salepoints_sku_connections.* FROM salepoints_sku_connections WHERE (salepoints_sku_connections.product_id = '7592') 3 0.000447 false
SELECT sale_points.* FROM sale_points WHERE (sale_points.id = '199') LIMIT 0, 1 1 0.000491 false
SELECT sale_points.* FROM sale_points WHERE (sale_points.id = '200') LIMIT 0, 1 1 0.000375 false
SELECT sale_points.* FROM sale_points WHERE (sale_points.id = '202') LIMIT 0, 1 1 0.000412 false
SELECT (select group_concat(db_files.name ORDER BY 1 SEPARATOR ', ') from db_files where db_files.master_object_id = catalog_categories.id and (master_object_class='Catalog_Category' and field='image')) as image_calculated, (product_type_calculated_join.name) as product_type_calculated, (select group_concat(catalog_attributes.name ORDER BY 1 SEPARATOR ', ') from catalog_attributes, catalog_category_filters where catalog_attributes.id=catalog_category_filters.attribute_id and catalog_category_filters.category_id=catalog_categories.id) as filters_calculated, catalog_categories.* FROM catalog_categories LEFT JOIN catalog_product_types as product_type_calculated_join ON product_type_calculated_join.id = catalog_categories.type_id WHERE (catalog_categories.id = '83') LIMIT 0, 1 1 0.001232 false
SELECT catalog_categories.* FROM catalog_categories ORDER BY sort_order 149 0.001383 false
SELECT (select group_concat(db_files.name ORDER BY 1 SEPARATOR ', ') from db_files where db_files.master_object_id = catalog_categories.id and (master_object_class='Catalog_Category' and field='image')) as image_calculated, (product_type_calculated_join.name) as product_type_calculated, (select group_concat(catalog_attributes.name ORDER BY 1 SEPARATOR ', ') from catalog_attributes, catalog_category_filters where catalog_attributes.id=catalog_category_filters.attribute_id and catalog_category_filters.category_id=catalog_categories.id) as filters_calculated, catalog_categories.* FROM catalog_categories LEFT JOIN catalog_product_types as product_type_calculated_join ON product_type_calculated_join.id = catalog_categories.type_id WHERE (catalog_categories.id = '12') LIMIT 0, 1 1 0.000907 false
SELECT COALESCE(SUM(leftover), 0) FROM salepoints_sku_connections WHERE product_id = '7592' AND leftover > 0 1 0.000558 false
SELECT admin_module_settings.* FROM admin_module_settings WHERE (admin_module_settings.module_id='admin') AND (admin_module_settings.form_id='default') LIMIT 0, 1 1 0.000547 false
SELECT shop_carts.* FROM shop_carts WHERE (shop_carts.cart_id = '143bc5f66e0c4ea214a54e3103250532ea720bcea72f82832522d1b18b1365f6dbd674c82945b136e8d1b0422e3004dd966aa90a7cc8b2a08e5510263027d4d2') LIMIT 0, 1 0 0.000249 false
SELECT admin_menus.* FROM admin_menus WHERE (admin_menus.code = 'main') LIMIT 0, 1 1 0.000295 false
SELECT (select group_concat(db_files.id ORDER BY 1 SEPARATOR ', ') from db_files where db_files.master_object_id = admin_menu_items.id and (master_object_class='Admin_MenuItem' and field='photos')) as photos_calculated, (select group_concat(db_files.name ORDER BY 1 SEPARATOR ', ') from db_files where db_files.master_object_id = admin_menu_items.id and (master_object_class='Admin_MenuItem' and field='document_files')) as document_files_calculated, admin_menu_items.* FROM admin_menu_items WHERE (admin_menu_items.menu_id = '1') AND (admin_menu_items.parent_id is null and (admin_menu_items.is_hidden is null or admin_menu_items.is_hidden=0) and (admin_menu_items.is_hidden_in_menu is null or admin_menu_items.is_hidden_in_menu=0)) ORDER BY group_name, sort_order 2 0.000893 false
SELECT admin_menu_items.* FROM admin_menu_items ORDER BY sort_order 11 0.000387 false
SELECT admin_menus.* FROM admin_menus WHERE (admin_menus.id = '1') LIMIT 0, 1 1 0.000304 false
SELECT admin_menus.* FROM admin_menus WHERE (admin_menus.code = 'main') LIMIT 0, 1 1 0.000417 false
SELECT (select group_concat(db_files.id ORDER BY 1 SEPARATOR ', ') from db_files where db_files.master_object_id = admin_menu_items.id and (master_object_class='Admin_MenuItem' and field='photos')) as photos_calculated, (select group_concat(db_files.name ORDER BY 1 SEPARATOR ', ') from db_files where db_files.master_object_id = admin_menu_items.id and (master_object_class='Admin_MenuItem' and field='document_files')) as document_files_calculated, admin_menu_items.* FROM admin_menu_items WHERE (admin_menu_items.menu_id = '1') AND (admin_menu_items.parent_id is null and (admin_menu_items.is_hidden is null or admin_menu_items.is_hidden=0) and (admin_menu_items.is_hidden_in_menu is null or admin_menu_items.is_hidden_in_menu=0)) ORDER BY group_name, sort_order 2 0.001067 false