Hm5100-Eb Serials Heat Meter (DN50-DN300)

HM5100-EB ultrasonic heat meter is a static flow sensor based on the ultrasonic measuring principle. HM5100-EB has been designed for use in heating and cooling installations where water is the heat-bearing medium.
HM5100-EB employs ultrasonic measuring techniques and microprocessor technology. All calculating and flow measuring circuits are collected on one single board, thus providing a compact and rational design and, in addition, exceptionally high measuring accuracy and reliability is obtained.
The volume is measured using bidirectional ultrasonic technique based on the transit time method, with proven long-term stability and accuracy. Four ultrasonic transducers are used to send sound signals both against and with the flow. The ultrasonic signal travelling with the flow reaches the opposite transducer first. The time difference between the two signals can be converted into flow velocity and thereby also volume.
HM5100-EB adopts the integral design scheme, the flow measurement, Temperature measurement and Calculation of heat integration together, to improve the quality of the products. HM5100-EB can be combined with a variety of modules, E.g. M-bus module, RS-485 module etc.
 
Technology Data
Electrical data
Supply voltage                         3.65 VDC, D-cell lithium
                               6-years @ tBAT < 30 °C
galvanically separated M-bus module
-voltage                                   24V~36V
-current                     Less than 1.3mA
                                                 
galvanically separated RS-485 module
-voltage                                   7V~12V
-current                     Less than 5mA
galvanic ally coupled  M-bus module
                                             Max 1.2m. (if need increase, use of own supply)
galvanic ally separated RS-485 module
                                             Max 1.2m. (if need increase, use of own supply)
EMC data                                class B  E1 andE2
Mechanical data
     Metrological class                   2 or 3
Environmental class               Fulfils DS/EN 1434 class C                                                                                                                                                                                                    Ambient temperature              555°C(indoors) Protection class   IP65
Humidity                                93% RF non-condensing
Mechanical environment         M1 and M2
Medium temperature              2110°C (Heat and heat/cooling meters)
                           Storage temp. empty sensor -2560 °C
Pressure stage                      PN16

Nom.flow	Nom. Diameter [mm]	Dynamic Range :	:	p@ [bar]	Min.cut off [l/h]
15	DN50	1:25	2:1
25	DN65	1:25	2:1
40	DN80	1:25	2:1
60	DN100	1:25	2:1
100	DN125	1:25	2:1
150	DN150	1:25	2:1
250	DN200	1:25	2:1
400	DN250	1:25	2:1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Material
Wetted parts
Housing                                   Nodular cast iron
Transducer holder                     Copper
Transducer                               Stainless steel
Gaskets                                   Fluor rubber
Electronics box 
Base         Stainess steel
Cover        PC
 
Fitting hardware distance piece for electronics box    PA66
Signal cable
Communication cable (1.2mx0.5 mm²)