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STRUCTURE:
Prepayment Heat Meter consists of high-accuracy hot water flow
meter, flow sensor, temperature sensor, valve and its control unit,
IC card operation system and integrator process unit. Data is
transferred via IC card to realize prepayment function of heat
metering. |
MAIN TECHNICAL PARAMETERS:
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Applicable standards:
EN 1434-1997, CJ 128-2000
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Min. display unit for heat quantity:
0.01kW.h
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Accuracy of temperature sensor pair：
0.1℃
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Accuracy of metering temperature：
<0.3℃
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Diameters:
DN15, DN20
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Range of media temperature:
4℃～95℃
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Temperature difference:
3℃～40℃
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Pressure loss: <0.12MPa
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Pressure resistance: 1.0MPa
MAIN FUNCTION:
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One meter accepts one card
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Prepayment for heat consumption
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Certain credit is preset before delivery (as per customer requests)
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Warning at low credit in the meter
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Max. storing capacity: 999999kW.h
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When inserting IC card with credit amount into the meter, the meter will
display
available credit in meter before insertion, followed by
accumulated available credit
after insertion.
MAIN DISPLAYS:
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Available credit in the meter (all-time display)
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Total flow volume
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Inlet and outlet temperatures (simultaneously displayed)
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Instantaneous flow rate
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Total operation time
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**above
items are displayed when IC card remains inserted.
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Warning for low batteries:
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Warning for incorrect insertion of IC card:
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Warning for low credit in meter: 9kW.h (valve shut off)
Transport and Storage:
Transport
temperature: -20 - 50℃
Storing
temperature: 0 – 40
℃
indoor
Relative
humidity: max 85%
Layers of
stacking: max. 5
No shocks
and shakes, no caustic atmosphere
INSTALLATION:
Heat meter
shall be installed in water inlet tube or outlet tube as per models of
the meter. A filter is to be installed before the meter.
The
temperature sensor with “yellow” model mark shall be installed on inlet
tube, the other one on outlet tube.
Temperature controller or manual adjustment valve can be installed for
adjusting indoor temperature.
The meter
shall be installed at accessible places for convenient reading,
maintenance and insertion of IC card.
Heat meter management system
Technical specifications and
parameters are subject to change without notice. |
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