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This product contains the following details
The gas meters comply with GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres – Part 1: General requirements, and GB 3836.4-2010 Electrical apparatus for explosive gas atmospheres. Part 4: Intrinsic safety “i”. The gas meters’ ex-mark is ExibII BT3 Gb, and they are applicable to the place of A-II B Zone 1 & Zone 2 and T1-T3 Explosive gas mixture. The gas meters are inspected and approved by Test Department: China National Quality Supervision and Test Centre for Explosion Protected Electrical Products (CQST) and obtained Ex Certificate of Conformity.
□ Visualized interface and Chinese display for the information like inadequate residual gas volume, battery under-voltage and valve status etc.;
□ Multi-encryption authentication for data save and access provides safety and reliability;
□ Automatic sensor fault inspection and handling;
□ Abnormal data recording and operating data feedback of gas meters;
□ Available to setup max. gas volume to prevent end user to accumulate large gas volume and reduce the loss at gas administration authority caused by gas price fluctuation;
□ Available to setup overdraft gas volume and alarm volume;
□ Available to setup max. days for non-operating status of gas meter;
□ Treatment of moistureproof and oil-smoke-proof has been adopted for cover and module of gas meter;
□ Adopt module design for management software with friendly human-machine interface, intuitive easy-to-understand operation;| Type & specification/Technical data | CG1.6 | CG2.5 | |
| Max. flow rate (m3/h) | 2.5 | 4 | |
| Min. flow rate (m3/h) | 0.016 | 0.025 | |
| Operating condition | Relative humidity (%) |
≤85 |
|
| Temp. (℃) | -10～+40 | ||
| Max. operating pressure (kPa) | 20 | ||
| Total pressure loss (Pa) |
≤250 |
||
| Air tightness (kPa) | 30 | ||
| Error limit of reading (%) | Accuracy class: Class 1.5 |
qmin ≤ q < qt ±3 qt ≤ q < qmax ±1.5 |
|
| Center distance of pipe connector (mm) | 130 | ||
| Thread of pipe connector (mm) | M30×2 | ||
| Dimension (mm) | 230 x 168 x 139 | ||
| Weight (kg) | 1.8 | ||
| Number of times of IC card using (number of times) | ＞105 | ||
| Basic display unit of gas volume (m3) | 0.1 | ||
| Max. instantaneous current (mA) | ＜ 160 (when valve under operating) | ||
| Static working current (uA) | ＜15 | ||
| Year(s) of data retention (year) | ＞10 | ||
| Power supply (6V) | 4 pcs. of AA battery @1.5V (LR6 1.5V) | ||
Error curve
□ It is prohibited to install at bedroom, bathroom and the place stored with dangerous goods and flammables, or somewhere similar to the aforesaid.
□ The installation of gas meter should satisfy the requirements of meter reading, repairing, maintenance and safety operation.
Ordering information
The type, specification, quantity and name of the ordered product shall be provided when ordering.
