{"id":293125,"date":"2024-10-19T19:54:51","date_gmt":"2024-10-19T19:54:51","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-1434-21997\/"},"modified":"2024-10-25T17:04:36","modified_gmt":"2024-10-25T17:04:36","slug":"bs-en-1434-21997","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-1434-21997\/","title":{"rendered":"BS EN 1434-2:1997"},"content":{"rendered":"

Electrical safety requirements are not covered by this standard.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nBRITISH STANDARD <\/td>\n<\/tr>\n
2<\/td>\nCommittees responsible for this British Standard <\/td>\n<\/tr>\n
6<\/td>\nForeword
Foreword to amendment A1
Contents <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Temperature sensors
3.1 General
Table 1 – Tolerances
3.2 Mechanical design <\/td>\n<\/tr>\n
10<\/td>\nFigure 1 – Temperature probes \u2014 Type DS <\/td>\n<\/tr>\n
11<\/td>\nFigure 2 – Temperature probes \u2014 Type DL (head or cable) <\/td>\n<\/tr>\n
12<\/td>\nFigure 3 – Temperature probes \u2014 Type PL (head or cable) <\/td>\n<\/tr>\n
13<\/td>\nFigure 4 – Temperature pocket <\/td>\n<\/tr>\n
14<\/td>\n3.3 Platinum temperature sensor
Figure 5 – Temperature probe with permanently connected signal leads
Figure 6 – Head sensor temperature probe <\/td>\n<\/tr>\n
15<\/td>\nTable 2 – Maximum lengths of leads for Pt 100 temperature sensors <\/td>\n<\/tr>\n
16<\/td>\n3.4 Other temperature sensors
4 Flow sensor
4.1 Maximum admissible working pressure, MAP
4.2 Sizes and dimensions <\/td>\n<\/tr>\n
17<\/td>\nTable 3 – Dimensions
Table 4 – Threaded end connections \u2014 Range of size and minimum thread lengths in mm
4.3 Test signal output
4.4 Adjusting device <\/td>\n<\/tr>\n
18<\/td>\n5 Calculators
5.1 Mechanical dimensions for calculators for domestic use
5.2 Terminals \u2014 Specification and identification
Figure 7 – Outline of the dimensions <\/td>\n<\/tr>\n
19<\/td>\nFigure 8 – Maximum dimensions in mm <\/td>\n<\/tr>\n
20<\/td>\nTable 5 – Numbering of terminals <\/td>\n<\/tr>\n
21<\/td>\nTable 6 – Numbering and marking of the mains terminals
5.3 Batteries
5.4 Dynamic behaviour
5.5 Test signal output
5.6 24 hours interruption in supply voltage
6 Complete meter
7 Interfaces between sub-assemblies
7.1 Definitions for pulse device interfaces <\/td>\n<\/tr>\n
22<\/td>\nTable 7 – Timing and electrical parameters <\/td>\n<\/tr>\n
23<\/td>\nTable 8 – Timing and electrical parameters
Table 9 – Compatibility
8 Marking and security seals
8.1 Marking <\/td>\n<\/tr>\n
25<\/td>\n8.2 Sites for marking
8.3 Security seals <\/td>\n<\/tr>\n
26<\/td>\nAnnex A (informative)
Examples of temperature sensors <\/td>\n<\/tr>\n
27<\/td>\nFigure A.1 – Temperature probe \u2014 direct mounted \u2014 short \u2014 Type DS-cable <\/td>\n<\/tr>\n
28<\/td>\nFigure A.2 – Temperature probe \u2014 direct mounted \u2014 long \u2014 Type DL-head <\/td>\n<\/tr>\n
29<\/td>\nFigure A.3 – Temperature probe \u2014 direct mounted \u2014 long \u2014 Type DL-cable <\/td>\n<\/tr>\n
30<\/td>\nFigure A.4 – Temperature probe \u2014 pocket mounted \u2014 Type PL-head <\/td>\n<\/tr>\n
31<\/td>\nFigure A.5 – Temperature probe \u2014 pocket mounted \u2014 Type PL-cable <\/td>\n<\/tr>\n
32<\/td>\nFigure A.6 – Temperature probe boss and sealing ring <\/td>\n<\/tr>\n
33<\/td>\nFigure A.7 – Threaded pipe fitting G1\/2B, G3\/4B and G1B sizes <\/td>\n<\/tr>\n
34<\/td>\nFigure A.8 – Installation recommendations <\/td>\n<\/tr>\n
35<\/td>\nAnnex B (normative)
Input and output test signals
Figure B.1 – Signal flow diagram <\/td>\n<\/tr>\n
36<\/td>\nTable B.1 – Input and output test signals for the EUT
Table B.2 – Electrical and mechanical specifications for standardized test device <\/td>\n<\/tr>\n
37<\/td>\nAnnex C Low voltage Power Supply for heat meters and their sub-assemblies
Low voltage Power Supply for heat meters and their sub-assemblies
C.1 Remote Supply
C.1.1 Voltage (DC or AC)
C.1.2 Current available
C.1.3 Cabling requirements
C.2 Local external DC supply
C.2.1 Voltage
C.2.2 Other Data
Table C.1 – Standardized levels for external powering
C.3 Power supply specification <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Heat meters – Constructional requirements<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2003<\/td>\n38<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":293131,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[280,2641],"product_tag":[],"class_list":{"0":"post-293125","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-200-10","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/293125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/293131"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=293125"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=293125"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=293125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}