Customization: | Available |
---|---|
Install: | Horizontal |
Medium Temperature: | Hot Water |
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Application
The range of heat measure meter is used to measure the total quantity to heat consumption passing
through the central heating system, It consist of three part: flow meter, pairing temperature sensor
and calculator.
Features:
1 .Uses the battery power supply, the effective work deadline is 6 years.
2. Built-in memory installments, the data can store up .
3 .Selected high quality materials for steady & Reliable function and appearance
4. Base meter uses the new style hot water meter, wear-resisting, thermostable and easy installation LCD display monitor, high precision ,easy operator.
5.Electric circuits use the advanced SMT surface to paste install craft, each circuit go through strict testing process (according to industry standard CJ 128-2007 "Heat meter" testing method)
Working Conditions
Main Technical Data:
Flow Sensor
Temperature sensor
|
Name |
Unit |
Parameter values |
||
LR-15D/15 |
LR-20D/20 |
LR-25 |
|||
Size |
mm |
15 |
20 |
25 |
|
Installation Length |
110/130 |
130 |
160 |
||
Connecting thread |
G3/4B |
G1B |
G5/4B |
||
Accuracy grade |
2 or 3 |
||||
Maximum flow |
m³/h |
3.0 |
5.0 |
7.0 |
|
Nominal flow |
m³/h |
1.5 |
2.5 |
3.5 |
|
Transitional flow |
m³/h |
0.15 |
0.25 |
0.35 |
|
Minimum flow |
m³/h |
0.03 |
0.05 |
0.07 |
|
Working temperature |
°C |
4-90 |
|||
Pressure loss |
KPa |
|
|||
Sensor elements |
Electric type |
||||
Temperature sensor |
Pt1000 |
||||
Temperature resolution |
°C |
0.01 |
|||
Cable length |
1m |
||||
Measurement range |
°C |
4-95 |
|||
Maximum working pressure |
Mpa |
|
|||
Temperature difference range |
°C |
3-75 |
|||
Calculation error |
Conform to CJ 128-2007 Standard |
||||
Power |
V |
Battery 3.0 or 3.6 |
|||
Display |
8 |
||||
Quiescent current |
UA |
|
|||
Accuracy grade |
2 or 3 (CJ 128-2007 Standard) |
||||
Environmental grade |
A grade: +5°C~+55°C (CJ 128-2007 Standard) |
||||
Environment for storage |
°C |
-20~+50 |
|||
Protection grade |
IP 54 (GB4208-1993) |
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