{"id":3093,"date":"2025-03-18T09:10:59","date_gmt":"2025-03-18T01:10:59","guid":{"rendered":"https:\/\/www.shopvalves.com\/product\/spirax-sarco-m741-m741-1c-lcd-220v\/"},"modified":"2026-03-24T10:27:37","modified_gmt":"2026-03-24T02:27:37","slug":"spirax-sarco-m741-m741-1c-lcd-220v","status":"publish","type":"product","link":"https:\/\/www.shopvalves.com\/en\/product\/spirax-sarco-m741-m741-1c-lcd-220v\/","title":{"rendered":"Spirax Sarco Spirax Sarco M741 Display 3335248741 M741 Flow Computer Wall Mounted with RS485"},"content":{"rendered":"<p>The Spirax Sarco M741 Intelligent Digital Indicator can be used in conjunction with a TVA or TFA flow meter for highly accurate mass flow measurement of saturated or superheated steam (TVA only) in a variety of mounting configurations, including wall-mounted and panel-mounted.<\/p>\n<h3>specificities<\/h3>\n<ul>\n<li>Combined with TVA\/TFA to form a high-precision flow measurement system.<\/li>\n<li>For saturated or superheated steam (TVA only).<\/li>\n<li>It can automatically save 65536 sets of the latest historical data, and the saving interval can be set.<\/li>\n<li>It can automatically draw historical curves of flow rate, temperature, pressure, etc., and the coordinate start and end can be set.<\/li>\n<li>Real-time clock and timed automatic meter reading functions bring convenience to metering management.<\/li>\n<li>Able to communicate data with the upper computer to form an energy metering network system.<\/li>\n<li>Transmitter +24V DC power supply (with short-circuit protection) can be provided to power TVA\/TFA to simplify the system and save investment.<\/li>\n<li>The password setting prevents unauthorized persons from changing the set data.<\/li>\n<li>The meter does not have any internal adjustable devices such as potentiometers, coded switches, etc., which improves the vibration resistance, stability and reliability of the meter.<\/li>\n<li>Specially designed WDT circuit, power-on reset circuit and power-off data protection circuit ensure that the meter operates normally on power-on, and the data is not lost on power-off, and the power-off data protection does not need backup battery, and the protection time is 10 years.<\/li>\n<\/ul>\n<h3>options (as in computer software settings)<\/h3>\n<ul>\n<li><strong>Wall-mounted<\/strong>: With stainless steel meter box, weight 8kg, external power supply 220V, internal voltage regulator to 24Vdc for use.<\/li>\n<li><strong>Tray mounted<\/strong>: mounted on a console or existing control cabinet, weight 2kg, available as standard with 220Vac supply, optionally with 24Vdc (to be specified when ordering).<\/li>\n<\/ul>\n<h3>mounting<\/h3>\n<ul>\n<li>The disk-mounted gauges are secured to the instrument panel by two mounting brackets (supplied).<\/li>\n<li>The wall-mounted type is fixed to the wall or column by three M6 screws.<\/li>\n<\/ul>\n<h3>Technical parameters - Input<\/h3>\n<p>The M741 receives its signals from the TVA\/TFA, which transmits the measured data to the M741 by means of digital communication, and the M741 accurately displays the data shown on the TVA\/TFA LCD without any loss of precision.<\/p>\n<h3>Technical parameters - power supply<\/h3>\n<table>\n<thead>\n<tr>\n<th>power supply<\/th>\n<th>power wastage<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>187-242V (\u00b15%)<\/td>\n<td>4W<\/td>\n<\/tr>\n<tr>\n<td><em>take note of<\/em>If UPS power supply is used, in order to prevent high frequency signal interference, it is best to install a 10VA isolation transformer on the power supply circuit.<\/td>\n<td><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Technical parameters-Output<\/h3>\n<ul>\n<li><strong>4-20mA active output<\/strong>(M741 external power supply): load impedance (max.) 600 ohms, data update period 0.5s.<\/li>\n<li><strong>communication interface<\/strong>: EIA RS-485 serial interface (opto-isolated), communication rate 9600, 4800, 2400 or 1200 baud rate (selected by panel operation), no parity, 8 data bits, 1 stop bit, transmission medium is twisted pair.<\/li>\n<\/ul>\n<h3>environmental conditions<\/h3>\n<table>\n<thead>\n<tr>\n<th>operating temperature<\/th>\n<th>relative humidity<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0 ~ 50\u00b0C<\/td>\n<td>0 ~ 85%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Ordering Instructions<\/h3>\n<p>Example: A set of Spirax Sarco M741 wall-mounted monitors, 220Vac.<\/p>\n<h3>weights<\/h3>\n<table>\n<thead>\n<tr>\n<th>Available types<\/th>\n<th>Weight (kg)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Wall-mounted<\/td>\n<td>8<\/td>\n<\/tr>\n<tr>\n<td>Tray mounted<\/td>\n<td>2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><!-- \u6280\u672f\u8d44\u6599\u4e0b\u8f7d\u533a\u5757 --><\/p>\n<div class=\"valve-documents\">\n<h3 class=\"doc-title\">Technical Data Download<\/h3>\n<div class=\"doc-links\">\n<a href=\"https:\/\/doc.shopvalves.com\/TI-P331-741CN-Chinese.pdf\" class=\"doc-link\" target=\"_blank\">TI-P331-741CN-Chinese.pdf<\/a>    <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Spirax Sarco's Spirax Sarco M741 intelligent digital display can be used in conjunction with a TVA or TFA flow meter for saturated or superheated steam...<\/p>","protected":false},"featured_media":4659,"template":"","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"product_brand":[24],"product_cat":[51,171],"product_tag":[],"class_list":{"0":"post-3093","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-spirax-sarco","7":"product_cat-flowmetering","8":"product_cat-flowmetering-computers","10":"first","11":"instock","12":"sale","13":"shipping-taxable","14":"purchasable","15":"product-type-simple","16":"entry","17":"content-bg","18":"loop-entry"},"_links":{"self":[{"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product\/3093","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/media\/4659"}],"wp:attachment":[{"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/media?parent=3093"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product_brand?post=3093"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product_cat?post=3093"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.shopvalves.com\/en\/wp-json\/wp\/v2\/product_tag?post=3093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}