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Smart gas meter solution
Smart gas meter solution
一、Gas meter equipment management system diagram (general diagram):
Nominal flow |
m³/h |
1.6 |
2.5 |
4 |
Maximum flow |
m³/h |
2.5 |
4 |
6 |
Minimum flow |
m³/h |
0.016 |
0.025 |
0.04 |
Measurement grade |
level |
1.5 |
||
Basic error limit |
% |
Qmin≤Q<0.1Qmax时±3 |
||
Maximum reading |
m³ |
99999.999 |
||
Working pressure |
kPa |
10 |
||
Total pressure loss |
Pa |
≤250 |
||
Tightness |
kPa |
No leakage within 3min under 20kPa pressure |
||
Explosion-proof standard |
|
EXib IIBT3 Gb |
||
Minimum reading of character wheel |
dm³ |
0.2 |
||
Operating temperature |
℃ |
-10~+50 |
||
Medium condition |
|
All kinds of gas, air, non-corrosive gas |
||
Inlet and outlet pipe thread |
Mm |
M30×2 |
||
Center distance of inlet and outlet pipe |
Mm |
130 |
||
Outside dimensions |
Mm |
H220xW205xD161 |
||
weight |
Kg |
2.04 |
||
Power supply |
|
4 alkaline batteries (external) + 1 lithium battery (internal) |
||
Operating Voltage |
V |
DC 5.0V~ 7.0V |
||
Working current (average) |
mA |
≤90 |
||
Quiescent Current |
uA |
≤20 |
||
Sampling method |
|
Double reed pipe |
||
Valve reliability |
|
The number of continuous switching is not less than 10000 times |
||
Valve closing time |
S |
<0.5 |
||
Clock error |
Minutes/month |
<10 |
||
Protection level |
|
IP65 |
||
communication method |
|
NB-IOT |
||
Success rate of one meter reading |
|
≥98.5% |
||
Data reading accuracy |
|
≥99% |
Installation size
Product specifications |
H |
W |
D |
E |
A |
weight |
Steel shell |
224mm |
195mm |
67mm |
168mm |
130mm |
2.2Kg |
Aluminum shell |
224mm |
215mm |
74mm |
175mm |
110mm |
2.1Kg |
Contact
Add:No.3, longzhida Road, electronic industrial park, high tech Industrial Development Zone, Chengde City, Hebei Province
Inquiry purchase:15531465865
Installation complaints:15531465865
E-mail:310540860@qq.com
Website: www.cdlong.com

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