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Communication
gas meter
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Communication water meter
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Communication watt-hour meter
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Communication heat meter
Communication gas meter
(CG-T,
CG-KT)     
Characteristic:
Communication gas meter
consists of a diaphragm gas meter and flow-rate signal collection unit.
The meter can be connected to various meter-reading terminals and the
circuit of signal output interface can be changed to match different
meter reading systems. Besides its universality to certain extent, the
meter is featured with simultaneous output of four signals, which
provides convenience for AMR system and includes flow-metering signal,
magnetic protection signal, short circuit signal and open circuit
signal.
Communication gas meter is divided into two types: interruptible (fitted
with control valve) and uninterruptible. For the first type, gas
management department can open the valve to supply gas or interrupt the
supply.
Main Technical Parameters:
Applicable standard:
GB/T6968-1997
Accuracy:
class B
Installation:
Meter
type is selected based on type of gas.
Every
uncontrollable gas meter is appended with two tube joints,
two seal gaskets,
one user’s manual and one quality certificate.
Every
controllable gas meter is appended with two tube joints,
two seal gaskets,
one user’s manual and one quality certificate.
Communication
WATER meter
Characteristics:
Simultaneous output of four signals: flow-metering signal,
magnetic protection signal,
short circuit signal and open circuit signal.
The meter can be connected to various meter-reading terminals.
Main Technical Specifications:
Applicable standard: GB/T 778-1996, JB/T 8802-1998
Water
temperature range: Cold water: 0--50℃,
Hot water: 30--90℃
Nominal
pressure:
≤1.0
MPa
Pressure loss:
≤0.1
MPa
Communication interface: meet with different requirements of various
reading system.
Flow
rate range:
|
Nominal
Size(DN) |
Class |
Overload
flow-rate Qs(m3/h) |
Permanent flow-rate
Qp(m3/h) |
Transitional flow-rate
Qt(m3/h) |
Minimum flow-rate
Qmin(m3/h) |
Output interface |
Meter type |
|
15 |
B |
3 |
1.5 |
0.12 |
0.03 |
2
wires/3
wires |
Single /multi jet |
|
20 |
B |
5 |
2.5 |
0.2 |
0.05 |
2
wires/3
wires |
Single /multi jet |
|
25 |
B |
7 |
3.5 |
0.2 |
0.07 |
3
wires |
multi jet |
|
40 |
B |
20 |
10 |
0.8 |
0.2 |
3
wires |
multi jet |
Installation dimensions:
|
Size |
Length L:mm |
Connection |
Remarks |
|
DN15 |
165 (110) |
Thread G 3/4B |
fingure in parentheses
is for single jet |
|
DN20 |
195 (130) |
Thread G 1B |
|
DN25 |
225 |
Thread G1 1/4B |
|
|
DN40 |
245 |
Thread G 2B |
|
Installation:
Size of water meter is selected based on installing
position, tube size and flow rate.
Installing position shall not be exposed to insolation,
water submerging, freezing and pollution, and shall be convenient for
maintenance.
The meter shall be installed horizontally with “arrow”
in the body following direction of water flow.
A valve shall be installed at the tube before the
meter.
COMMUNICATION WATT-HOUR METER
（Single
phase）
Characteristics:
Communication watt-hour meter is single phase meter
integrating signal collection and control circuit to mechanical single
phase watt-hour meter. It is featured with high accuracy and easy
control (interruption) and photoelectric isolation is adopted for output
part to avoid ambient signal interference. The meter can be connected to
various reading systems, which providing universality to certain extent.
Three signals are outputted simultaneously: electricity metering signal,
short-circuit signal and open-circuit signal.
Main Technical Specifications:
Applicable standard: GB/T 15283-1994
Accuracy:
class 2
Installation: indoor
Ambient
temperature: -10℃--45℃
Relative
humidity: 25%--95%
Output
interface: meet with different requirements of various reading system.
Transport and Storage:
Indoor
storage temperature: 0℃--40℃
Relative
humidity: <95%
No shocks
and shakes.
COMMUNICATION HEAT METER
Characteristics:
Communication heat meter consists of three parts: high-sensitive flow
meter, high-accuracy temperature sensors and integrator. Photoelectric
isolation is adopted for output part to avoid ambient signal
interference and gain stable waveform. The meter can be connected to
various reading systems, which providing high universality. Three
signals are outputted simultaneously: heat metering pulse signal,
short-circuit signal and open-circuit signal.
Main Technical Specifications:
Applicable standards: EN1434-1997, CJ128-2000
Accuracy: class 3
Accuracy of temperature sensor pair：0.1℃
Accuracy of metering temperature：
<0.3℃
Sizes:
DN15,
DN20
Pulse
constant: 1MJ /pulse
Pulse
width:
≥1
S
Range of media temperature:
4℃～95℃
Temperature difference:
3℃～40℃
Power supply:
Built-in 3.6VDC lithium battery
Characteristics:
1.
Control valves are required to be installed at meter’s inlet
and outlet, for easy maintenance.
2.
Filter is needed at inlet of meter to avoid influence of
foreign materials on metering accuracy.
3.
Heat piping must be flushed before meter installation.
Technical specifications and
parameters are subject to change without notice. |
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