Download Files

Series DMHF Heat Flow Brochure .pdf
Data Logger System.rar

HELP

•Downloads(ALL)
•Contact us
DMHF
DYNAMETERS HEAT FLOW METER
The DMHF Series adopt the Multibeam Technology, Digital Signal Processing Technology and Error Correction Technology, which are the state-of-the-art non-invasive flow measurement technology, with a measuring system of very high accuracy, versatility, low cost of installation and ownership. The meter can calculate automatically caloric content of water under carious temperatures, and can obtain instantaneous caloric value and totalized caloric value.The Non-invasive clamp-on series and the Insertion series are available.Users can select fixed types or Portable types. The pipe range should be 25mm-2540mm (For Insertion series, the allowed pipe range is 65mm-2540mm.
Features:
 
1. Non-invasive clamp-on series transducer and Insertion Series transducer are available.
2. Internally configured batch controller makes batch control convenient and accurate.
3. No moving parts, no pressure drop, no need of maintenance.
4. Easy and economical installation, hot-tapped installation.
5. Daily, monthly and yearly totalized flow: totalized flow for the last 64 days and months as well as for the last 5 years can be reviewed.
6. Optional SD card Data logger output, can memory total Heat Flow, Heat flow rate, etc.
Transmitter
Power Supply
(Std) 10-28 VDC @ 2.5VA max.115/230VAC 50/60Hz ¡À15%@ 5VA max. Solar energy
Velocity
0 ~ 40 ft/s (0 ~ 12m/s), bi-directional
Display
4 line¡Á16 English letters LCD back lit, can display total flow, flow rate, velocity and meter run status etc. 
Units
Rate
Totalized
User Configured (English and Metric);
Rate and Velocity Display;
(FWD, NET, REV or BATCH) gallons, ft³, barrels, lbs, litres, m³,kg
Output
4~20mA, Pulse, Relay, RS232C or RS485, options: up to 8 GB Data logger, Hart +(4~20mA), Modbus
Accuracy
¡À1.0% of reading at rates >0.5 m/s)
¡À0.003 m/s of reading at rates<0.5 m/s
Sensitivity
Flow Rate: 0.001ft/s (0.0003m/s)
Repeatability
0.2% of reading
Security
Keypad lockout, access code enable
Transducer
Liquid Types Supported
Virtually most any liquid containing less than 2% total suspended solids (TSS) or aeration
Suited Liquid Temperature
Std. Temp. Transducer: -40¡æ~121¡æ
High Temp. Transducer: -40¡æ~250¡æ
Cable Length
Std: 20 feet (6m); Opt: Maximum: 990 feet (300m)
Pipe Size
L transducer: 1000-4570mm
M transducer: 40 to 1000mm
S transducer: 12-50mm
Insertion transducer: 65-2540mm
Flanged transducer: 65-2540mm
Transducer Size
S: Size: 42 * 25 * 25;   weight: < 0.2kg
M: Size: 60 * 43 * 43;   weight: < 0.2kg
L: Size: 80 *53 * 53;   weight: < 0.2kg  
DMHF Heat Flow Meter Selection Table
Model      DMHF    -  X   X    X     X    X  - X - X - X / *£¨XDCR£©
   
Heat Flow Series
Power Supply 
A¡ª110VAC
B¡ª220VAC
E¡ª24VDC
Transducer Type
B¡ªClamp-on
C¡ªInsertion
D¡ªFlanged   
Output Selection 1
N¡ªN/A
1¡ª4-20mA       5¡ªRS485
2¡ªPulse Output  6¡ªHart+(4-20mA) 
3¡ªRelay         7¡ªModBus
4¡ªRS232        8¡ªData Logger & Software 
Output Selection 2
Same as Output Selection 1    
Output Selection 3
Same as Output Selection 1       
Pipeline Range 
0050¡ªDN50
1200¡ªDN1200
Cable Length
006¡ª6M
030¡ª30M
The Maximum can reach to 300m, also can contact with
the factory for the details
Temperature Input Type
C1-Pt100(-40¡«150¡æ) Two-Wire System Temperature transmitter
 input; Accuracy: ¡À0.2¡æ.
C2-Pt1000(-40¡«150¡æ) Two-Wire System Temperature transmitter
input; Accuracy: ¡À0.1¡æ.
 
 
Transducer Type 
Refer to DB (Clamp-on), DC (Insertion), and DF (Flanged) transducer type selections.
Parts Number Construction example£º
DMHF-BB1NN-0400-015-C1/ DB-MNN-0400-030                                             
Description: DMHF Heat flow meter, 220VAC power supply, Clamp-on type transducer,4-20mA output, Non-multiple output selections;  used in pipeline DN400; transducer cable length 15m; Temperature Input Type pt100, Standard M type transducer, standard temperature, used in pipeline DN400, transducer cable length 30m.